INDENTURE Dated as of July 12, 2011 Among INC RESEARCH, LLC, as Issuer the Guarantors named herein, as Guarantors, and WILMINGTON TRUST, NATIONAL ASSOCIATION as Trustee 11.5% SENIOR NOTES DUE 2019

Exhibit 4.3

INDENTURE

Dated as of July 12, 2011

Among

INC RESEARCH, LLC, as Issuer

the Guarantors named herein,
as Guarantors,

and

WILMINGTON TRUST, NATIONAL ASSOCIATION
as Trustee

11.5% SENIOR NOTES DUE 2019

CROSS-REFERENCE TABLE*

Trust Indenture Act Section		Indenture Section
310 (a)(1)		7.10
(a)(2)		7.10
(a)(3)		N.A.
(a)(4)		N.A.
(a)(5)		7.10
(b)		7.10
(c)		N.A.
311 (a)		7.11
(b)		7.11
(c)		N.A.
312 (a)		2.05
(b)		12.03
(c)		12.03
313 (a)		7.06
(b)(1)		N.A.
(b)(2)		7.06; 7.07
(c)		7.06; 12.02
(d)		7.06
314 (a)		4.03; 4.04; 12.02; 12.05
(b)		N.A.
(c)(1)		12.04
(c)(2)		12.04
(c)(3)		N.A.
(d)		N.A.
(e)		12.05
(f)		N.A.
315 (a)		7.01
(b)		7.05; 12.02
(c)		7.01
(d)		7.01
(e)		6.14
316 (a)(last sentence)		2.09
(a)(1)(A)		6.05
(a)(1)(B)		6.04
(a)(2)		N.A.
(b)		6.07
(c)		2.12; 9.04
317 (a)(1)		6.08
(a)(2)		6.12
(b)		2.04
318 (a)		12.01
(b)		N.A.
(c)		12.01

N.A. means not applicable.

* This Cross-Reference Table is not part of the Indenture.

TABLE OF CONTENTS

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ARTICLE I

DEFINITIONS AND INCORPORATION BY REFERENCE

Section 1.01	Definitions	1
Section 1.02	Other Definitions	31
Section 1.03	Incorporation by Reference of Trust Indenture Act	32
Section 1.04	Rules of Construction	32
Section 1.05	Acts of Holders	33

ARTICLE II

THE NOTES

Section 2.01	Form and Dating; Terms	34
Section 2.02	Execution and Authentication	35
Section 2.03	Registrar and Paying Agent	36
Section 2.04	Paying Agent To Hold Money in Trust	36
Section 2.05	Holder Lists	36
Section 2.06	Transfer and Exchange	37
Section 2.07	Replacement Notes	47
Section 2.08	Outstanding Notes	47
Section 2.09	Treasury Notes	47
Section 2.10	Temporary Notes	48
Section 2.11	Cancellation	48
Section 2.12	Defaulted Interest	48
Section 2.13	CUSIP or ISIN Numbers	48

ARTICLE III

REDEMPTION

Section 3.01	Notices To Trustee	49
Section 3.02	Selection of Notes To Be Redeemed or Purchased	49
Section 3.03	Notice of Redemption	49
Section 3.04	Effect of Notice of Redemption	50
Section 3.05	Deposit of Redemption or Purchase Price	50
Section 3.06	Notes Redeemed or Purchased in Part	51
Section 3.07	Optional Redemption	51
Section 3.08	Mandatory Redemption	52
Section 3.09	Offers To Repurchase by Application of Excess Proceeds	52

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ARTICLE IV

COVENANTS

Section 4.01	Payment of Notes	54
Section 4.02	Maintenance of Office or Agency	54
Section 4.03	Reports and Other Information	54
Section 4.04	Compliance Certificate	56
Section 4.05	Taxes	56
Section 4.06	Stay, Extension and Usury Laws	56
Section 4.07	Limitation on Restricted Payments	57
Section 4.08	Dividend and Other Payment Restrictions Affecting Restricted Subsidiaries	63
Section 4.09	Limitation on Incurrence of Indebtedness and Issuance of Disqualified Stock and Preferred Stock	65
Section 4.10	Asset Sales	70
Section 4.11	Transactions with Affiliates	72
Section 4.12	Liens	75
Section 4.13	Existence	75
Section 4.14	Offer To Repurchase Upon Change of Control	75
Section 4.15	Subsidiary Guarantors	77

ARTICLE V

SUCCESSORS

Section 5.01	Merger, Consolidation or Sale of All or Substantially All Assets	78
Section 5.02	Successor Corporation Substituted	80

ARTICLE VI

DEFAULTS AND REMEDIES

Section 6.01	Events of Default	80
Section 6.02	Acceleration	82
Section 6.03	Other Remedies	83
Section 6.04	Waiver of Past Defaults	83
Section 6.05	Control by Majority	83
Section 6.06	Limitation on Suits	83
Section 6.07	Rights of Holders of Notes To Receive Payment	84
Section 6.08	Collection Suit by Trustee	84
Section 6.09	Restoration of Rights and Remedies	84
Section 6.10	Rights and Remedies Cumulative	84
Section 6.11	Delay or Omission Not Waiver	85
Section 6.12	Trustee May File Proofs of Claim	85
Section 6.13	Priorities	85
Section 6.14	Undertaking for Costs	86

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ARTICLE VII

TRUSTEE

Section 7.01	Duties of Trustee	86
Section 7.02	Rights of Trustee	87
Section 7.03	Individual Rights of Trustee	88
Section 7.04	Trustee’s Disclaimer	88
Section 7.05	Notice of Defaults	88
Section 7.06	Reports by Trustee to Holders of the Notes	88
Section 7.07	Compensation and Indemnity	89
Section 7.08	Replacement of Trustee	90
Section 7.09	Successor Trustee by Merger, etc.	91
Section 7.10	Eligibility; Disqualification	91
Section 7.11	Preferential Collection of Claims Against Issuer	91

ARTICLE VIII

LEGAL DEFEASANCE AND COVENANT DEFEASANCE

Section 8.01	Option To Effect Legal Defeasance or Covenant Defeasance	91
Section 8.02	Legal Defeasance and Discharge	91
Section 8.03	Covenant Defeasance	92
Section 8.04	Conditions to Legal or Covenant Defeasance	92
Section 8.05	Deposited Money and Government Securities To Be Held in Trust; Other Miscellaneous Provisions	93
Section 8.06	Repayment to Issuer	94
Section 8.07	Reinstatement	94

ARTICLE IX

AMENDMENT, SUPPLEMENT AND WAIVER

Section 9.01	Without Consent of Holders of Notes	95
Section 9.02	With Consent of Holders of Notes	96
Section 9.03	Compliance with Trust Indenture Act	97
Section 9.04	Revocation and Effect of Consents	97
Section 9.05	Notation on or Exchange of Notes	98
Section 9.06	Trustee To Sign Amendments, etc.	98

ARTICLE X

GUARANTEES

Section 10.01	Guarantee	98
Section 10.02	Limitation on Guarantor Liability	100
Section 10.03	Execution and Delivery	100
Section 10.04	Subrogation	100

iii

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Section 10.05	Benefits Acknowledged	100
Section 10.06	Release of Guarantees	101

ARTICLE XI

SATISFACTION AND DISCHARGE

Section 11.01	Satisfaction and Discharge	101
Section 11.02	Application of Trust Money	102

ARTICLE XII

MISCELLANEOUS

Section 12.01	Trust Indenture Act Controls	102
Section 12.02	Notices	102
Section 12.03	Communication by Holders of Notes with Other Holders of Notes	104
Section 12.04	Certificate and Opinion as to Conditions Precedent	104
Section 12.05	Statements Required in Certificate or Opinion	104
Section 12.06	Rules by Trustee and Agents	105
Section 12.07	No Personal Liability of Directors, Officers, Employees and Stockholders, etc.	105
Section 12.08	Governing Law	105
Section 12.09	Waiver of Jury Trial	105
Section 12.10	Force Majeure	105
Section 12.11	No Adverse Interpretation of Other Agreements	105
Section 12.12	Successors	105
Section 12.13	Severability	106
Section 12.14	Counterpart Originals	106
Section 12.15	Table of Contents, Headings, etc.	106
Section 12.16	U.S.A. Patriot Act	106

EXHIBITS

Exhibit A	Form of Note
Exhibit B	Form of Certificate of Transfer
Exhibit C	Form of Certificate of Exchange
Exhibit D	Form of Supplemental Indenture To Be Delivered by Subsequent Guarantors

INDENTURE, dated as of July 12, 2011 among INC Research, LLC., a Delaware limited liability company (the “Issuer”), the entities named in the signature page hereto as Guarantors, and Wilmington Trust, National Association, as Trustee.

W I T N E S S E T H

WHEREAS, the Issuer has duly authorized the creation of an issue of $300,000,000 aggregate principal amount of 11.5% Senior Notes due 2019 (the “Initial Notes” together with any Additional Notes, the “Notes”). The Initial Notes and any Additional Notes shall be treated as a single class for all purposes under this Indenture, including waivers, amendments, redemptions and offers to purchase.

WHEREAS, the Issuer has duly authorized the execution and delivery of this Indenture.

WHEREAS, each Guarantor has duly authorized its Guarantee of the Notes and to provide therefor each Guarantor has duly authorized the execution and delivery of this Indenture.

NOW, THEREFORE, the Issuer and the Trustee agree as follows for the benefit of each other and for the equal and ratable benefit of the Holders of the Notes.

ARTICLE I

DEFINITIONS AND INCORPORATION BY REFERENCE

Section 1.01 Definitions.

“144A Global Note” means a Global Note substantially in the form of Exhibit A hereto, bearing the Global Note Legend and the Private Placement Legend and deposited with or on behalf of, and registered in the name of, the Depositary or its nominee that will be issued in a denomination equal to the outstanding principal amount of the Notes sold or to be sold in reliance on Rule 144A.

“Acquired Indebtedness” means, with respect to any specified Person,

(1) Indebtedness of any other Person existing at the time such other Person is merged with or into or became a Restricted Subsidiary of such specified Person, including Indebtedness assumed or incurred in connection with, or in contemplation of, such other Person merging with or into or becoming a Restricted Subsidiary of such specified Person, and

(2) Indebtedness secured by a Lien encumbering any asset acquired by such specified Person.

“Acquisition” means (i) the acquisition by the Issuer or any Restricted Subsidiary of Issuer of either Capital Stock of a Person such that such Person shall become a Restricted Subsidiary of the Issuer or all or substantially all of the properties and assets of a Person or (ii) any other acquisition of Capital Stock or property or assets other than in the ordinary course of business.

“Additional Notes” means any additional Notes issued after the Issue Date having identical terms and conditions to the Initial Notes, except for issue date, issue price, first interest payment date (so long as not otherwise prohibited by the terms of this Indenture, including, without limitation, Section 4.09 hereof).

“Affiliate” of any specified Person means any other Person directly or indirectly controlling or controlled by or under direct or indirect common control with such specified Person. For purposes of this definition, “control” (including, with correlative meanings, the terms “controlling,” “controlled by” and “under common control with”), as used with respect to any Person, shall mean the possession, directly or indirectly, of the power to direct or cause the direction of the management or policies of such Person, whether through the ownership of voting securities, by agreement or otherwise. No Person (other than the Issuer or any Subsidiary of the Issuer) in whom a Receivables Subsidiary makes an Investment in connection with a financing of accounts receivable will be deemed to be an Affiliate of the Issuer or any of its Subsidiaries solely by reason of such Investment.

“Applicable Premium” means, with respect to any Note on any Redemption Date, the greater of:

(1) 1.0% of the principal amount of such Note; and

(2) the excess, if any, of (a) the present value at such Redemption Date of (i) the redemption price of such Note at July 15, 2015 (such redemption price being set forth in the table appearing above under the caption “Optional Redemption”), plus (ii) all required interest payments due on such Note through July 15, 2015 (excluding accrued but unpaid interest to the Redemption Date), computed using a discount rate equal to the Treasury Rate as of such Redemption Date plus 50 basis points; over (b) the then-outstanding principal amount of such Note.

“Applicable Procedures” means, with respect to any transfer, redemption, tender or exchange of or for beneficial interests in any Global Note, the rules and procedures of the Depositary, Euroclear and/or Clearstream that apply to such transfer or exchange.

“Asset Sale” means:

(1) the sale, conveyance, transfer or other disposition, whether in a single transaction or a series of related transactions, of property or assets (including by way of a Sale and Lease-Back Transaction) of the Issuer or any of the Restricted Subsidiaries (each referred to in this definition as a “disposition”); or

(2) the issuance or sale of Equity Interests of any Restricted Subsidiary, whether in a single transaction or a series of related transactions (other than Preferred Stock of Restricted Subsidiaries issued in compliance with Section 4.09 hereof);

in each case, other than:

(a) any disposition of Cash Equivalents or obsolete, damaged or worn out equipment in the ordinary course of business or inventory (or other assets) held for sale in the ordinary course of business;

(b) the disposition of all or substantially all of the assets of the Issuer in a manner permitted pursuant to the provisions described under Section 5.01 hereof or any disposition that constitutes a Change of Control pursuant to this Indenture;

(c) the making of any Restricted Payment or Permitted Investment that is permitted to be made, and is made, under Section 4.07 hereof;

(d) any disposition of assets or issuance or sale of Equity Interests of any Restricted Subsidiary in any transaction or series of related transactions with an aggregate fair market value of less than $5 million;

(e) any disposition of property or assets or issuance of securities by a Restricted Subsidiary to the Issuer or by the Issuer or a Restricted Subsidiary to another Restricted Subsidiary;

(f) to the extent allowable under Section 1031 of the Code, any exchange of like property (excluding any boot thereon) for use in a Similar Business;

(g) the lease, assignment, sublease, license or sublicense of any real or personal property in the ordinary course of business;

(h) foreclosures, condemnations or any similar actions on assets;

(i) any financing transaction with respect to property built or acquired by the Issuer or any Restricted Subsidiary after the Issue Date, including Sale and Lease-Back Transactions permitted by this Indenture;

(j) licenses or sub-licenses of intellectual property in the ordinary course of business;

(k) the creation of any Lien permitted under this Indenture;

(l) any issuance or sale of Equity Interests in, or Indebtedness or other securities of, an Unrestricted Subsidiary;

(m) the surrender or waiver of contract rights or settlement, release or surrender of a contract, tort or other litigation claim in the ordinary course of business;

(n) a disposition of accounts receivable and related assets by a Receivables Subsidiary in a Qualified Receivables Financing;

(o) the dispositions of Investments or receivables in connection with the compromise, settlement or collection thereof in the ordinary course of business or in connection with bankruptcy proceedings;

(p) the abandonment of intellectual property rights in the ordinary course of business, which in the good faith determination of the Issuer are not material to the conduct of the business of the Issuer and its Restricted Subsidiaries taken as a whole; and

(q) any disposition of Specified Assets.

“Bankruptcy Law” means Title 11, U.S. Code or any similar federal or state law for the relief of debtors.

“Business Day” means each day which is not a Legal Holiday.

“Capital Stock” means:

(1) in the case of a corporation, corporate stock;

(2) in the case of an association or business entity, any and all shares, interests, participations, rights or other equivalents (however designated) of corporate stock;

(3) in the case of a partnership or limited liability company, partnership or membership interests (whether general or limited); and

(4) any other interest or participation that confers on a Person the right to receive a share of the profits and losses of, or distributions of assets of, the issuing Person.

“Capitalized Lease Obligation” means, at the time any determination thereof is to be made, the amount of the liability in respect of a capital lease that would at such time be required to be capitalized and reflected as a liability on a balance sheet (excluding the footnotes thereto) in accordance with GAAP; provided that any obligations of the Issuer or its Restricted Subsidiaries either existing on the Issue Date or created prior to any recharacterization described below (i) that were not included on the consolidated balance sheet of the Issuer as capital lease obligations and (ii) that are subsequently recharacterized as capital lease obligations due to a change in accounting treatment or otherwise, shall for all purposes under this Indenture (including, without limitation, the calculation of Consolidated Net Income and EBITDA) not be treated as capital lease obligations, Capitalized Lease Obligations or Indebtedness).

“Cash Equivalents” means:

(1) United States dollars;

(2) (a) euro, or any national currency of any participating member of the EMU; or

(b) in the case of any Foreign Subsidiary that is a Restricted Subsidiary, such local currencies held by them from time to time in the ordinary course of business;

(3) securities issued or directly and fully and unconditionally guaranteed or insured by the U.S. government or any agency or instrumentality thereof the securities of which are unconditionally guaranteed as a full faith and credit obligation of such government with maturities of 12 months or less from the date of acquisition;

(4) marketable direct EEA Government Obligations with maturities of 12 months or less from the date of acquisition;

(5) certificates of deposit, time deposits and eurodollar time deposits with maturities of one year or less from the date of acquisition, bankers’ acceptances with maturities not exceeding one year and overnight bank deposits, in each case with any commercial bank having capital and surplus of not less than $500.0 million;

(6) repurchase obligations for underlying securities of the types described in clauses (3), (4) and (5) entered into with any financial institution meeting the qualifications specified in clause (5) above;

(7) commercial paper rated at least P-1 by Xxxxx’x or at least A-1 by S&P and in each case maturing within 24 months after the date of creation thereof;

(8) marketable short-term money market and similar securities having a rating of at least P-2 or A-2 from either Xxxxx’x or S&P, respectively, and in each case maturing within 24 months after the date of creation thereof;

(9) readily marketable direct obligations issued by any state, commonwealth or territory of the United States or any political subdivision or taxing authority thereof having one of the two highest ratings obtainable from either Xxxxx’x or S&P (or reasonably equivalent ratings of another internationally recognized ratings agency) with maturities of 24 months or less from the date of acquisition;

(10) investment funds investing 90% of their assets in securities of the types described in clauses (1) through (9) above; and

(11) in the case of any Restricted Subsidiary organized or having its principal place of business outside of the United States, Investments of comparable tenor and credit quality to those described in the foregoing clauses (3) through (10) customarily utilized in countries in which such Restricted Subsidiary operates.

Notwithstanding the foregoing, “Cash Equivalents” shall include amounts denominated in currencies other than those set forth in clauses (1) and (2) above, provided that such amounts are converted into any currency listed in clauses (1) and (2) as promptly as practicable and in any event within ten Business Days following the receipt of such amounts.

“Change of Control” means the occurrence of any of the following:

(1) any “person” or “group” (as such terms are used in Sections 13(d) and 14(d) of the Exchange Act), other than one or more Permitted Holders, is or becomes the ultimate “beneficial owner” (as such term is used in Rules 13d-3 and 13d-5 under the Exchange Act, except that for purposes of this clause (1) such person or group shall be deemed to have “beneficial ownership” of all shares that any such person or group has the right to acquire, whether such right is exercisable immediately or only after the passage of time), directly or indirectly, of more than 50% of the Voting Stock of the Issuer, and the Permitted Holders beneficially own (as so defined), in the aggregate, directly or indirectly, a lesser percentage of the Voting Stock of the Issuer than such other person or group and do not have the right or ability by voting power, contract or otherwise, directly or indirectly, to elect or designate for election a majority of the board of directors or Equivalent Managing Body of the Issuer; or

(2) after the consummation of an initial public offering, during any period of two consecutive years, individuals who at the beginning of such period constituted the board of directors or Equivalent Managing Body of the Issuer (together with any new individuals whose election by such board of directors or Equivalent Managing Body or whose nomination for election was approved by a vote of a majority of the directors or Equivalent Managing Body then still in office were members of such board or body at the beginning of such period or whose election or nomination for election was previously so approved) cease for any reason to constitute a majority of the persons then in office on such board of directors or Equivalent Managing Body of the Issuer; or

(3) (a) all or substantially all of the assets of the Issuer and the Restricted Subsidiaries are sold or otherwise transferred to any Person other than a Wholly Owned Restricted Subsidiary or one or more Permitted Holders or (b) the Issuer consolidates or merges with or into another Person or any Person consolidates or merges with or into the Issuer, in either case under this clause (3), in one transaction or a series of related transactions in which immediately after the consummation thereof Persons beneficially owning (as defined above in clause (1)), directly or indirectly, Voting Stock representing in the aggregate a majority of the total voting power of the Voting Stock of the Issuer immediately prior to such consummation do not beneficially own (as defined above in clause (1)), directly or indirectly, Voting Stock representing a majority of the total voting power of the Voting Stock of the Issuer or the surviving or transferee Person; or

(4) the adoption by the stockholders of the Issuer of a plan or proposal for the liquidation or dissolution of the Issuer.

“Class C Agreement” means the Class C Agreement among an Affiliate of Ontario Teachers’ Pension Plan Board, INC Research Holdings, Inc., INC Research Intermediate LLC and the Issuer as in effect on the Issue Date and giving effect to amendments thereto that, taken as a whole, are not materially adverse to the interests of the Holders of the Notes.

“Clearstream” means Clearstream Banking, Société Anonyme, and any successor thereto.

“Code” means the Internal Revenue Code of 1986, as amended.

“Consolidated Depreciation and Amortization Expense” means, with respect to any Person for any period, the total amount of depreciation and amortization expense, including the amortization of goodwill and other intangibles, deferred financing fees of such Person and its Restricted Subsidiaries, for such period on a consolidated basis and otherwise determined in accordance with GAAP.

“Consolidated Interest Expense” means, with respect to any Person for any period, without duplication, the sum of:

(1) consolidated interest expense of such Person and its Restricted Subsidiaries for such period, to the extent such expense was deducted (and not added back) in computing Consolidated Net Income, including (a) amortization of original issue discount resulting from the issuance of Indebtedness at less than par, (b) all commissions, discounts and other fees and charges owed with respect to letters of credit or bankers acceptances, (c) non-cash interest payments (but excluding any non-cash interest expense attributable to the movement in the xxxx to market valuation of Hedging Obligations or other derivative instruments pursuant to GAAP), (d) the interest component of Capitalized Lease Obligations, and (e) net payments, if any, pursuant to interest rate Hedging Obligations with respect to Indebtedness, and excluding, (w) penalties and interest related to taxes (x) amortization of deferred financing fees, debt issuance costs, commissions, fees and expenses and (y) any expensing of bridge, commitment and other financing fees; plus

(2) consolidated capitalized interest of such Person and its Restricted Subsidiaries for such period, whether paid or accrued; less

(3) interest income of such Person and its Restricted Subsidiaries for such period.

For purposes of this definition, interest on a Capitalized Lease Obligation shall be deemed to accrue at an interest rate reasonably determined by such Person to be the rate of interest implicit in such Capitalized Lease Obligation in accordance with GAAP.

“Consolidated Net Income” means, with respect to any Person for any period, the aggregate of the Net Income, of such Person and its Restricted Subsidiaries for such period, on a consolidated basis, and otherwise determined in accordance with GAAP; provided, however, that, without duplication,

(1) any after-tax effect of extraordinary, non-recurring or unusual gains or losses (less all fees and expenses relating thereto) or costs, charges and expenses (including relating to the Transactions), including, without limitation, any severance costs, integration costs, relocation costs, and curtailments or modifications to pension and post-retirement employee benefit plans, shall be excluded,

(2) the cumulative effect of a change in accounting principles during such period shall be excluded,

(3) any after-tax effect of income (loss) from disposed or discontinued operations and any net after-tax gains or losses on disposal of disposed, abandoned or discontinued operations shall be excluded,

(4) any after-tax effect of gains or losses (less all fees and expenses relating thereto) attributable to asset dispositions (including sales or other dispositions under a Qualified Receivables Financing) other than in the ordinary course of business, as determined in good faith by the Issuer, shall be excluded,

(5) the Net Income for such period of any Person that is not a Subsidiary, or is an Unrestricted Subsidiary, or that is accounted for by the equity method of accounting, shall be excluded; provided that Consolidated Net Income of the Issuer shall be increased by the amount of dividends or distributions or other payments that are actually paid in cash (or to the extent converted into cash) to the referent Person or a Restricted Subsidiary thereof in respect of such period by such Person,

(6) solely for the purpose of determining the amount available for Restricted Payments under clause (3)(a) of the Section 4.07(a) the Net Income for such period of any Restricted Subsidiary (other than any Guarantor) shall be excluded if the declaration or payment of dividends or similar distributions by that Restricted Subsidiary of its Net Income is not at the date of determination permitted, directly or indirectly, by the operation of the terms of its charter or any agreement, instrument, judgment, decree, order, statute, rule, or governmental regulation applicable to that Restricted Subsidiary or its stockholders, unless such restriction with respect to the payment of dividends or similar distributions has been legally waived; provided that Consolidated Net Income of the Issuer will be increased by the amount of dividends or other distributions or other payments actually paid in cash (or to the extent converted into cash) to the Issuer or a Restricted Subsidiary thereof in respect of such period, to the extent not already included therein,

(7) effects of adjustments (including the effects of such adjustments pushed down to the Issuer and its Restricted Subsidiaries) in the property and equipment, software and other intangible assets, deferred revenue and debt line items in such Person’s consolidated financial statements pursuant to GAAP resulting from the application of purchase accounting in relation to any consummated acquisition or the amortization or write-off of any amounts thereof, net of taxes, shall be excluded,

(8) (i) any non-cash compensation expense recorded from grants of stock appreciation or similar rights, stock options, restricted stock or other rights and non-cash charges associated with

the rollover, acceleration or payout of Equity Interests by management of the Issuer or any of its direct or indirect parent companies in connection with the Transactions or other acquisitions and (ii) the amount of any contingent payments related to the Trident Acquisition that are treated as compensation expense in accordance with GAAP shall be excluded;

(9) any impairment charge or asset write-off or write-down, in each case, pursuant to GAAP and the amortization of intangibles and other assets arising pursuant to GAAP shall be excluded,

(10) any net gain or loss in such period (i) due solely to fluctuations in currency values or (ii) resulting from currency translation gains or losses related to currency remeasurements of Indebtedness (including any net loss or gain resulting from Hedging Obligations for currency exchange risk) shall be excluded,

(11) any increase in amortization or depreciation or other non-cash charges resulting from the application of purchase accounting in relation to any acquisition that is consummated after the Issue Date, net of taxes, shall be excluded,

(12) any after-tax effect of income (loss) from early extinguishment or cancellation of Indebtedness or Hedging Obligations or other derivative instruments shall be excluded,

(13) any net gain or loss in such period from Hedging Obligations or embedded derivatives that require similar accounting treatment and the application of Accounting Standards Codification Topic 815 and related pronouncements shall be excluded,

(14) any fees, charges, costs and expenses incurred in connection with the Transactions or accruals and reserves that are established within 12 months of the Issue Date that are required to be established as a result of the Transactions in accordance with GAAP shall be excluded, and

(15) any expenses or charges (other than depreciation or amortization expense) related to any Equity Offering, Permitted Investment, acquisition, disposition, recapitalization or the incurrence of Indebtedness permitted to be incurred by the Indenture (including a refinancing thereof) (whether or not successful), including (i) such fees, expenses or charges related to the offering of the Notes and the Credit Facilities and any Qualified Receivables Financing and (ii) any amendment or other modification of the Notes, the Credit Facilities and any Qualified Receivables Financing shall be excluded.

In addition, to the extent not already included in the Net Income of such Person and its Restricted Subsidiaries, notwithstanding anything to the contrary in the foregoing, Consolidated Net Income shall include the amount of proceeds received from business interruption insurance and reimbursements of any expenses and charges that are covered by indemnification or other reimbursement provisions in connection with any Permitted Investment or any sale, conveyance or other disposition of assets permitted under the Indenture.

Notwithstanding the foregoing, for the purpose of Section 4.07 hereof only (other than clause (3)(e) of Section 4.07(a) hereof), there shall be excluded from Consolidated Net Income any income arising from any sale or other disposition of Restricted Investments made by the Issuer and its Restricted Subsidiaries, any repurchases and redemptions of Restricted Investments from the Issuer and its Restricted Subsidiaries, any repayments of loans and advances which constitute Restricted Investments by the Issuer or any of its Restricted Subsidiaries, any sale of the stock of an Unrestricted Subsidiary or any distribution or dividend from an Unrestricted Subsidiary, in each case only to the extent such amounts increase the amount of Restricted Payments permitted under clause (3)(e) of Section 4.07(a) hereof.

“Consolidated Secured Debt Ratio” means, as of any date of determination, the ratio of (1) Consolidated Total Indebtedness of the Issuer and its Restricted Subsidiaries that is secured by any Lien, as of the end of the most recent fiscal period for which internal financial statements are available immediately preceding the date on which such event for which such calculation is being made shall occur to (2) Issuer’s EBITDA for the most recently ended four full fiscal quarters for which internal financial statements are available immediately preceding the date on which such event for which such calculation is being made shall occur, in each case with such pro forma adjustments to Consolidated Total Indebtedness and EBITDA as are appropriate and consistent with the pro forma adjustment provisions set forth in the definition of Fixed Charge Coverage Ratio.

“Consolidated Total Indebtedness” means, as at any date of determination, an amount equal to the sum of the aggregate amount of all outstanding Indebtedness of the Issuer and its Restricted Subsidiaries on a consolidated basis consisting of Indebtedness for borrowed money, Obligations in respect of Capitalized Lease Obligations and debt obligations evidenced by promissory notes and similar instruments.

“Contingent Obligations” means, with respect to any Person, any obligation of such Person guaranteeing any leases, dividends or other obligations that do not constitute Indebtedness (“primary obligations”) of any other Person (the “primary obligor”) in any manner, whether directly or indirectly, including, without limitation, any obligation of such Person, whether or not contingent,

(1) to purchase any such primary obligation or any property constituting direct or indirect security therefor,

(2) to advance or supply funds

(a) for the purchase or payment of any such primary obligation, or

(b) to maintain working capital or equity capital of the primary obligor or otherwise to maintain the net worth or solvency of the primary obligor, or

(3) to purchase property, securities or services primarily for the purpose of assuring the owner of any such primary obligation of the ability of the primary obligor to make payment of such primary obligation against loss in respect thereof.

“Corporate Trust Office” means the principal office of the Trustee at which at any time its corporate trust business shall be administered, which office at the date hereof is located at 000 Xxxxx Xxxx, Xxxxx 000, Xxxxxxxx, XX 00000, Attention: Corporate Trust Services - Administrator for INC Research, LLC., or such other address as the Trustee may designate from time to time by notice to the Holders and the Issuer, or the principal corporate trust office of any successor Trustee (or such address as such successor Trustee may designate from time to time by notice to the Holders and the Issuer).

“Credit Facilities” means, with respect to the Issuer or any of its Restricted Subsidiaries, one or more debt facilities, including the Senior Secured Credit Facility, or other financing arrangements (including, without limitation, commercial paper facilities or indentures) providing for revolving credit loans, term loans, letters of credit or other long-term indebtedness, including any notes, mortgages, guarantees, collateral documents, instruments and agreements executed in connection therewith, and any amendments, supplements, modifications, extensions, renewals, restatements or refundings thereof and any indentures or credit facilities or commercial paper facilities that replace, refund or refinance any part of the loans, notes, other credit facilities or commitments thereunder, including any such replacement, refunding or refinancing facility or indenture that increases the amount permitted to be borrowed thereunder

or alters the maturity thereof (provided that such increase in borrowings is permitted under Section 4.09(b)(1) hereof) or adds Restricted Subsidiaries as additional borrowers or guarantors thereunder and whether by the same or any other agent, lender or group of lenders.

“Custodian” means the Trustee, as custodian with respect to the Notes in global form, or any successor entity thereto.

“Default” means any event that is, or with the passage of time or the giving of notice or both would be, an Event of Default.

“Definitive Note” means a certificated Note registered in the name of the Holder thereof and issued in accordance with Section 2.06(c) hereof, substantially in the form of Exhibit A hereto, except that such Note shall not bear the Global Note Legend and shall not have the “Schedule of Exchanges of Interests in the Global Note” attached thereto.

“Depositary” means, with respect to the Notes issuable or issued in whole or in part in global form, the Person specified in Section 2.03 hereof as the Depositary with respect to the Notes, and any and all successors thereto appointed as Depositary hereunder and having become such pursuant to the applicable provisions of this Indenture.

“Designated Non-cash Consideration” means the fair market value of non-cash consideration received by the Issuer or a Restricted Subsidiary in connection with an Asset Sale that is so designated as Designated Non-cash Consideration pursuant to an Officer’s Certificate, setting forth the basis of such valuation, executed by the principal financial officer of the Issuer, less the amount of cash and Cash Equivalents received in connection with a subsequent sale of or collection of such Designated Non-cash Consideration.

“Designated Preferred Stock” means Preferred Stock of the Issuer or any parent company thereof (in each case other than Disqualified Stock) that is issued for cash (other than to a Restricted Subsidiary or an employee stock ownership plan or trust established by the Issuer or any of its Subsidiaries) and is so designated as Designated Preferred Stock, pursuant to an Officer’s Certificate executed by the principal financial officer of the Issuer or the applicable parent company thereof, as the case may be, on the issuance date thereof, the cash proceeds of which are excluded from the calculation set forth in clause (3) of Section 4.07(a).

“Disqualified Stock” means, with respect to any Person, any Capital Stock of such Person which, by its terms (or by the terms of any security into which it is convertible or for which it is putable or exchangeable), or upon the happening of any event, matures or is mandatorily redeemable (other than solely as a result of a change of control or asset sale) pursuant to a sinking fund obligation or otherwise, or is redeemable at the option of the holder thereof (other than solely as a result of a change of control or asset sale), in whole or in part, in each case prior to the date 91 days after the earlier of the maturity date of the Notes or the date the Notes are no longer outstanding; provided, however, that if such Capital Stock is issued to any plan for the benefit of employees of the Issuer or its Subsidiaries or by any such plan to such employees, such Capital Stock shall not constitute Disqualified Stock solely because it may be required to be repurchased by the Issuer or its Subsidiaries in order to satisfy applicable statutory or regulatory obligations.

“Domestic Restricted Subsidiary” means a Restricted Subsidiary incorporated or otherwise organized or existing under the laws of the United States, any state thereof or the District of Columbia.

“EBITDA” means, with respect to any Person for any period, the Consolidated Net Income of such Person for such period

(1) increased (without duplication) by:

(a) Permitted Tax Distributions and any other provision for taxes based on income or profits or capital gains, including, without limitation, state, franchise and similar taxes and foreign withholding taxes of such Person paid or accrued during such period deducted (and not added back) in computing Consolidated Net Income; plus

(b) Fixed Charges of such Person for such period plus amounts excluded from the definition of Consolidated Interest Expense pursuant to clauses 1(x) and 1(y) thereof to the extent the same was deducted (and not added back) in calculating such Consolidated Net Income; plus

(c) Consolidated Depreciation and Amortization Expense of such Person for such period to the extent the same were deducted (and not added back) in computing Consolidated Net Income; plus

(d) the amount of any restructuring charge or reserve deducted (and not added back) in such period in computing Consolidated Net Income, including any one-time costs incurred in connection with acquisitions after the Issue Date and costs related to the closure and/or consolidation of facilities; plus

(e) any other non-cash charges, including any write offs, write downs or impairment charges, reducing Consolidated Net Income for such period (provided that if any such non-cash charges represent an accrual or reserve for potential cash items in any future period, the cash payment in respect thereof in such future period shall be subtracted from EBITDA to such extent, and excluding amortization of a prepaid cash item that was paid in a prior period); plus

(f) any costs or expense incurred by the Issuer or a Restricted Subsidiary pursuant to any management equity plan or stock option plan or any other management or employee benefit plan or agreement or any stock subscription or shareholder agreement, to the extent that such cost or expenses are funded with cash proceeds contributed to the capital of the Issuer or net cash proceeds of an issuance of Equity Interest of the Issuer (other than Disqualified Stock) solely to the extent that such net cash proceeds are excluded from the calculation set forth in clause (3) of Section 4.07(a) hereof; plus

(g) (i) the amount of transaction, management, monitoring, consulting and advisory fees and related expenses and indemnification payments paid (or any accruals related to such fees or related expenses) during such period to the Sponsors, not to exceed the amounts permitted by Section 4.07 (b)(14); (ii) the amount of any directors’ fees or reimbursements, in each case, not to exceed the amounts permitted by Section 4.07 (b)(12) and to the extent permitted under Section 4.11 and (iii) the amount of distributions and dividends paid in such period pursuant to the Class C Agreement not to exceed the amounts permitted by 4.07(b)(14); plus

(h) cash receipts (or any netting arrangements resulting in reduced cash expenditures) not representing EBITDA or Net Income in any period to the extent non-cash

gains relating to such income were deducted in the calculation of EBITDA pursuant to clause (2) below for any previous period and not added back; plus

(i) any net loss included in the consolidated financial statements due to the application of Financial Accounting Standards No. 160 “Non-controlling Interests in Consolidated Financial Statements” (“FAS 160”); plus

(j) rent expense as determined in accordance with GAAP not actually paid in cash during such period (net of rent expense paid in cash during such period over and above rent expense as determined in accordance with GAAP); plus

(k) the amount of loss on sale of receivables and related assets in connection with a Qualified Receivables Financing deducted (and not added back) in computing Consolidated Net Income; plus

(l) the amount of “run-rate” cost savings, operating expense reductions, restructuring charges and expenses and cost-saving synergies projected by the Issuer in good faith to be realized as a result of actions taken or expected to be taken during such period (calculated on a pro forma basis as though such cost savings, operating expense reductions, restructuring charges and expenses and cost-saving synergies had been realized on the first day of such period), net of the amount of actual benefits realized during such period from such actions, which, for the avoidance of doubt, will include up to $29.9 million of cost savings expected to be realized in connection with the Transactions; provided that (v) such cost savings, operating expense reductions, restructuring charges and expenses and cost-saving synergies are reasonably identifiable and factually supportable, (w) such cost savings, operating expense reductions, restructuring charges and expenses and cost-saving synergies are commenced within 12 months of the date hereof in connection with such actions, (x) no cost savings, operating expense reductions, restructuring charges and expenses and cost-saving synergies may be added pursuant to this clause (l) to the extent duplicative of any expenses or charges relating thereto that are either excluded in computing Consolidated Net Income or included (i.e., added back) in computing “EBITDA” for such period, (y) such adjustments may be incremental to (but not duplicative of) pro forma adjustments made pursuant to the second paragraph of the definition of “Fixed Charge Coverage Ratio”) and (z) the aggregate amount of cost savings, operating expense reductions, restructuring charges and expenses and cost-saving synergies added pursuant to this clause (l) shall not, except with respect to the $29.9 million of cost savings expected to be realized in connection with the Transactions, exceed the greater of 10% of combined EBITDA for such four quarter period (calculated on a pro forma basis) and the amount of such cost savings, operating expense reductions, restructuring charges and expenses and cost-saving synergies that would be compliant with Regulation S-X under the Securities Act.; and

(2) decreased by (without duplication) non-cash gains increasing Consolidated Net Income of such Person for such period, excluding any non-cash gains to the extent they represent the reversal of an accrual or reserve for a potential cash item that reduced EBITDA in any prior period.

all as determined on a consolidated basis for such Person and its Restricted Subsidiaries in accordance with GAAP.

“EEA Government Obligation” means any direct non-callable obligation of any European Union member for the payment of which obligation the full faith and credit of the respective nation is pledged; provided that such nation has a credit rating at least equal to that of the highest rated member nation of the European Economic Area.

“EMU” means the economic and monetary union as contemplated in the Treaty on European Union.

“Equity Interests” means Capital Stock and all warrants, options or other rights to acquire Capital Stock, but excluding any debt security that is convertible into, or exchangeable for, Capital Stock.

“Equity Offering” means any public or private sale of common stock or Preferred Stock of the Issuer or any of its direct or indirect parent companies (excluding Disqualified Stock), other than:

(1) public offerings with respect to the Issuer’s or any direct or indirect parent company’s common stock registered on Form S-8;

(2) issuances to any Subsidiary or Affiliate of the Issuer; and

(3) any such public or private sale that constitutes an Excluded Contribution.

“Equivalent Managing Body” means (i) with respect to a manager managed limited liability company, the board of managers, (ii) with respect to a member managed limited liability company, the board of directors of its most direct corporate parent company, which, for the avoidance of doubt, for the Issuer on the Issue Date is Holdings and (iii) with respect to a partnership, the board of directors of the general partner to the extent such general partner is a corporation, or the Equivalent Managing Body of the general partner if such general partner is not a corporation.

“euro” means the single currency of participating member states of the EMU.

“Euroclear” means Euroclear S.A./N.V., as operator of the Euroclear system, and any successor thereto.

“Exchange Act” means the Securities Exchange Act of 1934, as amended, and the rules and regulations of the SEC promulgated thereunder.

“Excluded Contribution” means net cash proceeds, marketable securities or Qualified Proceeds received by the Issuer from:

(a) contributions to its common equity capital; and

(b) the sale (other than to a Subsidiary of the Issuer or to any management equity plan or stock option plan or any other management or employee benefit plan or agreement of the Issuer) of Capital Stock (other than Disqualified Stock and Designated Preferred Stock) of the Issuer, in each case designated as Excluded Contributions pursuant to an Officers’ Certificate of the Issuer on the date such capital contributions are made or the date such Equity Interests are sold, as the case may be, which are excluded from the calculation set forth in Section 4.07(a)(3).

“Expense Reimbursement Agreement” means the Expense Reimbursement Agreement among Avista Capital Holdings, L.P., an affiliate of Ontario Teachers’ Pension Plan Board, INC Research Holdings, Inc., INC Research Intermediate LLC and the Issuer, as in effect on the Issue Date and giving

effect to amendments thereto that, taken as a whole, are not materially adverse to the interests of the Holders of the Notes.

“fair market value” means, with respect to any asset or liability, the fair market value of such asset or liability as determined by the Issuer in good faith; provided that if the fair market value is equal to or exceeds $25.0 million, such determination shall be made in good faith by the board of directors or Equivalent Managing Body of the Issuer.

“Fixed Charge Coverage Ratio” means, with respect to any Person for any period, the ratio of EBITDA of such Person for such period to the Fixed Charges of such Person for such period. In the event that the Issuer or any Restricted Subsidiary incurs, assumes, guarantees, redeems, retires or extinguishes any Indebtedness (other than Indebtedness incurred under any revolving credit facility or other incurrence of Indebtedness for working capital purposes pursuant to working capital facilities unless, in each case, such Indebtedness has been permanently repaid and has not been replaced) or issues or redeems Disqualified Stock or Preferred Stock subsequent to the commencement of the period for which the Fixed Charge Coverage Ratio is being calculated but prior to or simultaneously with the event for which the calculation of the Fixed Charge Coverage Ratio is made (the “Fixed Charge Coverage Ratio Calculation Date”), then the Fixed Charge Coverage Ratio shall be calculated giving pro forma effect to such incurrence, assumption, guarantee, redemption, retirement or extinguishment of Indebtedness, or such issuance or redemption of Disqualified Stock or Preferred Stock, as if the same had occurred at the beginning of the applicable period.

For purposes of making the computation referred to above, Investments, acquisitions, dispositions, mergers, consolidations and discontinued operations (as determined in accordance with GAAP) that have been made (or committed to be made pursuant to a definitive agreement) by the Issuer or any of its Restricted Subsidiaries during the reference period or subsequent to such reference period and on or prior to or simultaneously with the Fixed Charge Coverage Ratio Calculation Date shall be calculated on a pro forma basis assuming that all such Investments, acquisitions, dispositions, mergers, consolidations and discontinued operations (and the change in any associated Fixed Charges and the change in EBITDA resulting therefrom) had occurred on the first day of the reference period. If since the beginning of such period any Person that subsequently became a Restricted Subsidiary or was merged with or into the Issuer or any of its Restricted Subsidiaries since the beginning of such period shall have made any Investment, acquisition, disposition, merger, consolidation or discontinued operation that would have required adjustment pursuant to this definition, then the Fixed Charge Coverage Ratio shall be calculated giving pro forma effect thereto for such period as if such Investment, acquisition, disposition, merger, consolidation or discontinued operation had occurred at the beginning of the applicable period.

For purposes of this definition, whenever pro forma effect is to be given to a transaction, the pro forma calculations shall be made in good faith by a responsible financial or accounting officer of the Issuer and may include, without duplication, cost savings, operating expense reductions, restructuring charges and expenses and cost-saving synergies resulting from such Investment, acquisition, disposition, merger, consolidation or discontinued operation (including the Transactions) or other transaction, in each case calculated in the manner described in, and not to exceed the amount set forth in clause (1) of, the definition of “EBITDA” herein. For the avoidance of doubt, the actual adjustments described in Adjusted EBITDA elsewhere in the Offering Memorandum shall be deemed to comply with the standards set forth in the immediately preceding sentence. If any Indebtedness bears a floating rate of interest and is being given pro forma effect, the interest on such Indebtedness shall be calculated as if the rate in effect on the Fixed Charge Coverage Ratio Calculation Date had been the applicable rate for the entire period (taking into account any Hedging Obligations applicable to such Indebtedness). Interest on a Capitalized Lease Obligation shall be deemed to accrue at an interest rate reasonably determined by a responsible financial

or accounting officer of the Issuer to be the rate of interest implicit in such Capitalized Lease Obligation in accordance with GAAP. For purposes of making the computation referred to above, interest on any Indebtedness under a revolving credit facility computed on a pro forma basis shall be computed based upon the average daily balance of such Indebtedness during the applicable period except as set forth in the first paragraph of this definition. Interest on Indebtedness that may optionally be determined at an interest rate based upon a factor of a prime or similar rate, a eurocurrency interbank offered rate, or other rate, shall be deemed to have been based upon the rate actually chosen, or, if none, then based upon such optional rate chosen as the Issuer may designate.

“Fixed Charges” means, with respect to any Person for any period, the sum, without duplication, of:

(1) Consolidated Interest Expense of such Person for such period;

(2) all cash dividends or other distributions paid (excluding items eliminated in consolidation) on any series of Preferred Stock of such Person during such period; and

(3) all cash dividends or other distributions paid or accrued (excluding items eliminated in consolidation) on any series of Disqualified Stock of such Person during such period.

“Foreign Subsidiary” means, with respect to any Person, any Restricted Subsidiary other than a Domestic Restricted Subsidiary.

“GAAP” means generally accepted accounting principles in the United States which are in effect on the Issue Date.

“Global Note Legend” means the legend set forth in Section 2.06(f)(ii) hereof, which is required to be placed on all Global Notes issued under this Indenture.

“Global Notes” means, individually and collectively, each of the Restricted Global Notes and the Unrestricted Global Notes, substantially in the form of Exhibit A hereto, issued in accordance with Section 2.01, 2.06(b) or 2.06(d) hereof.

“Government Securities” means securities that are:

(1) direct obligations of the United States of America for the timely payment of which its full faith and credit is pledged; or

(2) obligations of a Person controlled or supervised by and acting as an agency or instrumentality of the United States of America the timely payment of which is unconditionally guaranteed as a full faith and credit obligation by the United States of America.

“guarantee” means a guarantee (other than by endorsement of negotiable instruments for collection in the ordinary course of business), direct or indirect, in any manner (including letters of credit and reimbursement agreements in respect thereof), of all or any part of any Indebtedness or other obligations.

“Guarantee” means the guarantee by any Guarantor of the Issuer’s Obligations under this Indenture.

“Guarantor” means, each Person that Guarantees the Notes in accordance with the terms of this Indenture.

“Hedging Obligations” means, with respect to any Person, the obligations of such Person under:

(1) any interest rate protection agreements including, without limitation, interest rate swap agreements, interest rate cap agreements and interest rate collar agreements;

(2) any foreign exchange contracts, currency swap agreements or other agreements or arrangements designed to protect such Person against fluctuations in interest rates or foreign exchange rates;

(3) any commodity futures contract, commodity option or other similar arrangement or agreement designed to protect such Person against fluctuations in the prices of commodities; and

(4) indemnity agreements and arrangements entered into in connection with the agreements and arrangements described in clauses (1), (2) and (3).

“Holder” means the Person in whose name a Note is registered on the Registrar’s books.

“Holdings” means INC Research Holdings, Inc.

“Indebtedness” means, with respect to any Person, without duplication:

(1) any indebtedness (including principal and premium) of such Person, whether or not contingent:

(a) in respect of borrowed money;

(b) evidenced by bonds, notes, debentures or similar instruments or letters of credit or bankers’ acceptances (or, without duplication, reimbursement agreements in respect thereof);

(c) representing the balance deferred and unpaid of the purchase price of any property (including Capitalized Lease Obligations), except (i) any such balance that constitutes an accrued expense or trade payable or similar obligation to a trade creditor, in each case, accrued in the ordinary course of business that are not overdue by 90 days or more or are being contested in good faith and (ii) any earn-out obligations until such obligation becomes a liability on the balance sheet of such Person in accordance with GAAP; or

(d) representing any Hedging Obligations;

if and to the extent that any of the foregoing Indebtedness (other than letters of credit and Hedging Obligations) would appear as a liability upon a balance sheet (excluding the footnotes thereto) of such Person prepared in accordance with GAAP;

(2) to the extent not otherwise included, any obligation by such Person to be liable for, or to pay, as obligor, guarantor or otherwise, on the obligations of the type referred to in

clause (1) of a third Person (whether or not such items would appear upon the balance sheet of the such obligor or guarantor), other than by endorsement of negotiable instruments for collection in the ordinary course of business; and

(3) to the extent not otherwise included, the obligations of the type referred to in clause (1) of a third Person secured by a Lien on any asset owned by such first Person, whether or not such Indebtedness is assumed by such first Person; provided that if such Indebtedness has not been so assumed the amount of such Indebtedness shall be the lesser of (A) the fair market value of such asset at the date of determination and (B) the amount of the Indebtedness so secured;

provided, however, that notwithstanding the foregoing, Indebtedness shall be deemed not to include Contingent Obligations incurred in the ordinary course of business.

“Indenture” means this Indenture, as amended or supplemented from time to time in accordance with Article 9 hereof.

“Independent Financial Advisor” means an accounting, appraisal, investment banking firm or consultant of nationally recognized standing that is, in the good faith judgment of the Issuer, qualified to perform the task for which it has been engaged.

“Indirect Participant” means a Person who holds a beneficial interest in a Global Note through a Participant.

“Initial Notes” has the meaning set forth in the preamble to this Indenture.

“Initial Purchasers” means Xxxxxx Xxxxxxx & Co. LLC, ING Financial Markets LLC, RBC Capital Markets, LLC and Natixis Securities North America Inc.

“interest” means, with respect to the Notes, interest on the Notes (regardless of whether so stated).

“Interest Payment Date” means July 15 and January 15 of each year to stated maturity.

“Investments” means, with respect to any Person, all investments by such Person in other Persons (including Affiliates) in the form of loans (including guarantees), advances or capital contributions (excluding accounts receivable, trade credit, advances to customers, commission, travel and similar advances to officers and employees, in each case made in the ordinary course of business), purchases or other acquisitions for consideration of Indebtedness, Equity Interests or other securities issued by any other Person and investments that are required by GAAP to be classified on the balance sheet (excluding the footnotes) of the Issuer in the same manner as the other investments included in this definition to the extent such transactions involve the transfer of cash or other property. For purposes of the definition of “Unrestricted Subsidiary” and Section 4.07 hereof:

(1) “Investments” shall include the portion (proportionate to the Issuer’s equity interest in such Subsidiary) of the fair market value of the net assets of a Subsidiary of the Issuer at the time that such Subsidiary is designated an Unrestricted Subsidiary; provided, however, that upon a redesignation of such Subsidiary as a Restricted Subsidiary, the Issuer shall be deemed to continue to have a permanent “Investment” in an Unrestricted Subsidiary in an amount (if positive) equal to:

(a) the Issuer’s “Investment” in such Subsidiary at the time of such redesignation; less

(b) the portion (proportionate to the Issuer’s equity interest in such Subsidiary) of the fair market value of the net assets of such Subsidiary at the time of such redesignation; and

(2) any property transferred to or from an Unrestricted Subsidiary shall be valued at its fair market value at the time of such transfer.

“Issue Date” means July 12, 2011.

“Issuer” has the meaning set forth in the preamble to this Indenture, until a successor replaces it and, thereafter, means the successor, in accordance with Section 5.01.

“Issuer Order” means a written request or order signed on behalf of the Issuer by an Officer of the Issuer, and delivered to the Trustee.

“Legal Holiday” means a Saturday, a Sunday or a day on which commercial banking institutions are not required to be open in the State of New York.

“Lien” means, with respect to any asset, any mortgage, lien (statutory or otherwise), pledge, hypothecation, charge, security interest, preference, priority or encumbrance of any kind in respect of such asset, whether or not filed, recorded or otherwise perfected under applicable law, including any conditional sale or other title retention agreement, any lease in the nature thereof, any option or other agreement to sell or give a security interest in and any filing of or agreement to give any financing statement under the Uniform Commercial Code (or equivalent statutes) of any jurisdiction; provided that in no event shall an operating lease be deemed to constitute a Lien.

“Management Agreement” means the Management Services Agreement among Avista Capital Holdings, L.P., INC Research Holdings, Inc., INC Research Intermediate LLC and the Issuer as in effect on the Issue Date and giving effect to amendments thereto that, taken as a whole, are not materially adverse to the interests of the Holders of the Notes.

“Moody’s” means Xxxxx’x Investors Service, Inc. and any successor to its rating agency business.

“Net Income” means, with respect to any Person, the net income (loss) of such Person, determined on a consolidated basis in accordance with GAAP and before any reduction in respect of Preferred Stock dividends.

“Net Proceeds” means the aggregate cash proceeds received by the Issuer or any of its Restricted Subsidiaries in respect of any Asset Sale, net of the direct costs relating to such Asset Sale, including legal, accounting and investment banking fees, and brokerage and sales commissions, any relocation expenses incurred as a result thereof, taxes paid or payable as a result thereof (after taking into account any available tax credits or deductions and any tax sharing arrangements), amounts required to be applied to the repayment of principal, premium, if any, and interest on Secured Indebtedness required (other than required by clause (1) of Section 4.10(b) hereof) to be paid as a result of such transaction, and any deduction of appropriate amounts to be provided by the Issuer or any of the Restricted Subsidiaries as a reserve in accordance with GAAP against any liabilities associated with the asset disposed of in such transaction and retained by the Issuer or any of the Restricted Subsidiaries after such sale or other disposition

thereof, including pension and other post-employment benefit liabilities and liabilities related to environmental matters or against any indemnification obligations (fixed or contingent) associated with such transaction.

“Non-U.S. Person” means a Person who is not a U.S. Person.

“Notes” has the meaning set forth in the preamble to this Indenture.

“Obligations” means any principal, interest (including any interest accruing subsequent to the filing of a petition in bankruptcy, reorganization or similar proceeding at the rate provided for in the documentation with respect thereto, whether or not such interest is an allowed claim under applicable state, federal or foreign law), penalties, fees, indemnifications, reimbursements (including reimbursement obligations with respect to letters of credit and banker’s acceptances), damages and other liabilities, and guarantees of payment of such principal, interest, penalties, fees, indemnifications, reimbursements, damages and other liabilities, payable under the documentation governing any Indebtedness; provided that Obligations with respect to the Notes shall not include fees or indemnification obligations in favor of the Trustee and other third parties other than the Holders.

“Offering Memorandum” means the offering memorandum, dated July 7, 2011, relating to the sale of the Notes.

“Officer” means the Chairman of the Board, the Chief Executive Officer, the Chief Financial Officer, the President, any Executive Vice President, Senior Vice President or Vice President, the Treasurer, any Assistant Treasurer, the Controller or the Secretary of the Issuer.

“Officer’s Certificate” means a certificate signed on behalf of the Issuer by an Officer of the Issuer that meets the requirements set forth in this Indenture.

“Opinion of Counsel” means a written opinion from legal counsel that meets the requirements set forth in this Indenture who is reasonably acceptable to the Trustee. The counsel may be an employee of or counsel to the Issuer or the Trustee.

“Pari Passu Indebtedness” means, with respect to the Issuer or any Guarantor, Indebtedness of the Issuer or such Guarantor unless, with respect to any item of Indebtedness, the instrument creating or evidencing the same or pursuant to which the same is outstanding or any other agreement governing the terms of such Indebtedness expressly provides that such Indebtedness shall be subordinated in right of payment to any other item of Indebtedness of the Issuer or such Guarantor. Notwithstanding the foregoing, “Pari Passu Indebtedness” shall not include:

(i) Indebtedness of the Issuer owed to any Restricted Subsidiary of the Issuer or Indebtedness of any such Restricted Subsidiary owed to the Issuer or any other Restricted Subsidiary of such Restricted Subsidiary;

(ii) Indebtedness incurred in violation of this Indenture.

“Participant” means, with respect to the Depositary, Euroclear or Clearstream, a Person who has an account with the Depositary, Euroclear or Clearstream, respectively (and, with respect to DTC, shall include Euroclear and Clearstream).

“Permitted Asset Swap” means the concurrent purchase and sale or exchange of Replacement Assets or a combination of Replacement Assets and cash or Cash Equivalents between the Issuer

or any of its Restricted Subsidiaries and another Person; provided, that any cash or Cash Equivalents received must be applied in accordance with Section 4.10 hereof.

“Permitted Holders” means (i) each of the Sponsors, (ii) members of management of the Issuer (or its direct or indirect parent or Subsidiary) on the Issue Date who are holders of Equity Interests of the Issuer (or any of its direct or indirect parent companies), (iii) any group (within the meaning of Section 13(d)(3) or Section 14(d)(2) of the Exchange Act or any successor provision) of which any of the foregoing are members; provided that, in the case of such group and without giving effect to the existence of such group or any other group, the Sponsors and such members of management, collectively, have beneficial ownership of more than 50% of the total voting power of the Voting Stock of the Issuer or any of its direct or indirect parent companies, and (iv) any Person that, directly or indirectly, holds or acquires 100% of the total voting power of the Voting Stock of the Issuer, and of which no other Person or group (within the meaning of Section 13(d)(3) or Section 14(d)(2) of the Exchange Act or any successor provision) other than any of the Permitted Holders specified in clauses (i), (ii), and (iii) above holds more than 50% of the total voting power of the Voting Stock thereof.

“Permitted Investments” means:

(1) any Investment in the Issuer or any of its Restricted Subsidiaries;

(2) any Investment in cash and Cash Equivalents;

(3) any Investment by the Issuer or any of its Restricted Subsidiaries in a Person that is engaged in a Similar Business if as a result of such Investment:

(a) such Person becomes a Restricted Subsidiary; or

(b) such Person, in one transaction or a series of related transactions, is merged or consolidated with or into, or transfers or conveys substantially all of its assets to, or is liquidated into, the Issuer or a Restricted Subsidiary,

and, in each case, any Investment held by such Person; provided, that such Investment was not acquired by such Person in contemplation of such acquisition, merger, consolidation or transfer;

(4) any Investment in securities or other assets not constituting cash or Cash Equivalents and received in connection with an Asset Sale made pursuant to the provisions of Section 4.10 hereof or any other disposition of assets not constituting an Asset Sale;

(5) any Investment existing on the Issue Date and any extension, modification or renewal of any Investments existing on the Issue Date, but only to the extent not involving additional advances, contributions or other Investments of cash or other assets or other increases thereof (other than as a result of the accrual or accretion of interest or original issue discount or the issuance of pay-in-kind securities, in each case, pursuant to the terms of such Investment as in effect on the Issue Date);

(6) any Investment acquired by the Issuer or any of its Restricted Subsidiaries in compromise of, or in respect of, obligations of, claims against or dispute with, any Person (other than the Issuer or any Restricted Subsidiary or Affiliate), including, but not limited to:

(a) in exchange for any other Investment or accounts receivable held by the Issuer or any such Restricted Subsidiary in connection with or as a result of a bankruptcy,

workout, reorganization or recapitalization of the issuer of such other Investment or accounts receivable; or

(b) as a result of a foreclosure by the Issuer or any of its Restricted Subsidiaries with respect to any secured Investment or other transfer of title with respect to any secured Investment in default;

(7) Hedging Obligations permitted under clause (10) of Section 4.09(b) hereof;

(8) Investments made with the net cash proceeds of, or the payment for which consists of, Equity Interests (exclusive of Disqualified Stock) of the Issuer, or any of its direct or indirect parent companies; provided, however, in each case, that such cash proceeds or such Equity Interests, as the case may be, will not increase the amount available for Restricted Payments under clause (3) of Section 4.07(a) hereof;

(9) guarantees of Indebtedness permitted under Section 4.09 hereof;

(10) any transaction to the extent it constitutes an Investment that is permitted under this Indenture and made in accordance with the provisions of Section 4.11(b) hereof (except transactions described in clauses (2), (4) and (13) of Section 4.11(b) hereof);

(11) any Investment by the Issuer or any Restricted Subsidiary in a Receivables Subsidiary or any Investment by a Receivables Subsidiary in any other Person in connection with a Qualified Receivables Financing; provided, however that any Investment in a Receivables Subsidiary is in the form of a purchase money note, contribution of additional receivables or an Equity Interest;

(12) additional Investments having an aggregate fair market value, taken together with all other Investments made pursuant to this clause (12) that are at that time outstanding (without giving effect to the sale of an Unrestricted Subsidiary to the extent the proceeds of such sale do not consist of cash or marketable securities), not to exceed the greater of (x) $25.0 million and (y) 2.00% of Total Assets (with the fair market value of each Investment being measured at the time made and without giving effect to subsequent changes in value);

(13) loans and advances to, or guarantees of Indebtedness of, officers, directors and employees in an amount not to exceed $3.0 million at any time outstanding;

(14) loans and advances to officers, directors and employees for business-related travel expenses, moving expenses and other similar expenses, in each case incurred in the ordinary course of business consistent with past practice;

(15) advances to customers or suppliers in the ordinary course of business that are, in conformity with GAAP, recorded as accounts receivable, prepaid expenses or deposits on the balance sheet of the Issuer or the Restricted Subsidiaries and endorsements for collection or deposit arising in the ordinary course of business;

(16) lease, utility and other similar deposits in the ordinary course of business;

(17) Investments consisting of the licensing or contribution of intellectual property pursuant to joint marketing arrangements with other Persons, in each case in the ordinary course of business;

(18) Investments consisting of purchases and acquisitions of inventory, supplies, materials and equipment or purchases of contract rights or licenses or leases of intellectual property, in each case in the ordinary course of business.

(19) open market repurchases of the Notes and other Pari Passu Indebtedness, provided that any Notes or Pari Passu Indebtedness so repurchased are promptly retired;

(20) Investments in minority equity interests in customers received by such customers as part of fee arrangements entered into in the ordinary course of business or otherwise consistent with industry practice; and

(21) Investments in joint ventures in an aggregate amount not to exceed $10.0 million outstanding at any one time in the aggregate.

“Permitted Liens” means, with respect to any Person:

(1) pledges or deposits by such Person under workers’ compensation laws, unemployment insurance laws or similar legislation, or good faith deposits in connection with bids, tenders, contracts (other than for the payment of Indebtedness) or leases to which such Person is a party, or deposits to secure public or statutory obligations of such Person or deposits of cash or U.S. government bonds to secure surety or appeal bonds to which such Person is a party, or deposits as security for contested taxes or import duties or for the payment of rent, in each case incurred in the ordinary course of business;

(2) Liens, imposed by law, such as carriers’, warehousemen’s and mechanics’ Liens, in each case for sums not yet overdue for a period of more than 30 days or being contested in good faith by appropriate proceedings or other Liens arising out of judgments or awards against such Person with respect to which such Person shall then be proceeding with an appeal or other proceedings for review and for which adequate reserves with respect thereto are maintained on the books of such Person in accordance with GAAP;

(3) Liens for taxes, assessments or other governmental charges not yet overdue for a period of more than 30 days or payable or subject to penalties for nonpayment or which are being contested in good faith by appropriate proceedings diligently conducted, and for which adequate reserves with respect thereto are maintained on the books of such Person in accordance with GAAP;

(4) Liens to secure public or statutory obligations, surety, stay, appeal, indemnity, bid, performance and similar bonds or with respect to other regulatory requirements or letters of credit issued pursuant to the request of and for the account of such Person in the ordinary course of its business;

(5) survey exceptions, encumbrances, easements or reservations of, or rights of others for, licenses, rights-of-way, sewers, electric lines, telegraph and telephone lines and other similar purposes, or zoning or other restrictions as to the use of real properties or Liens incidental, to the conduct of the business of such Person or to the ownership of its properties which were not incurred in connection with Indebtedness and which do not in the aggregate materially adversely affect the value of said properties or materially impair their use in the operation of the business of such Person;

(6) Liens securing Indebtedness permitted to be incurred pursuant to clause (4) or (17) Section 4.09 (b) hereof; provided that such Liens incurred pursuant to (i) clause (4) extend only to the property or equipment purchased, leased, constructed, installed, repaired or improved (except for accessions to such assets); provided that individual financings of property or equipment provided by one lender may be cross collateralized to other financings of property or equipment provided by such lender and (ii) clause (17) extends only to the assets of Foreign Subsidiaries;

(7) Liens existing on the Issue Date (other than Liens in favor of secured parties under the Senior Secured Credit Facility);

(8) Liens on property or shares of stock of a Person at the time such Person becomes a Subsidiary; provided, however, such Liens are not created or incurred in connection with, or in contemplation of, such other Person becoming such a Subsidiary; provided further, however, that such Liens may not extend to any other property owned by the Issuer or any of its Restricted Subsidiaries;

(9) Liens on property at the time the Issuer or a Restricted Subsidiary acquired the property, including any acquisition by means of a merger or consolidation with or into the Issuer or any of its Restricted Subsidiaries; provided, however, that such Liens are not created or incurred in connection with, or in contemplation of, such acquisition; provided further, however, that the Liens may not extend to any other property owned by the Issuer or any of its Restricted Subsidiaries;

(10) Liens securing Indebtedness or other obligations of a Restricted Subsidiary owing to the Issuer or another Restricted Subsidiary permitted to be incurred in accordance with Section 4.09 hereof;

(11) Liens securing Hedging Obligations;

(12) Liens on specific items of inventory or other goods and proceeds of any Person securing such Person’s obligations in respect of bankers’ acceptances issued or created for the account of such Person to facilitate the purchase, shipment or storage of such inventory or other goods;

(13) leases, subleases, licenses or sublicenses granted to others in the ordinary course of business which do not materially interfere with the ordinary conduct of the business of the Issuer or any of its Restricted Subsidiaries and do not secure any Indebtedness;

(14) Liens arising from Uniform Commercial Code financing statement filings regarding operating leases or consignments entered into by the Issuer and its Restricted Subsidiaries in the ordinary course of business;

(15) Liens in favor of the Issuer or any Guarantor;

(16) Liens on equipment of the Issuer or any of its Restricted Subsidiaries granted in the ordinary course of business to the Issuer’s clients;

(17) Liens to secure any refinancing, refunding, extension, renewal or replacement (or successive refinancing, refunding, extensions, renewals or replacements) as a whole, or in part, of any Indebtedness secured by any Lien referred to in the foregoing clauses (6), (7), (8) and (9) and

any Lien permitted by Section 4.12(a)(2)(C); provided, however, that (a) such new Lien shall be limited to all or part of the same property that secured the original Lien (plus improvements on such property), and (b) the Indebtedness secured by such Lien at such time is not increased to any amount greater than the sum of (i) the outstanding principal amount or in the case of Indebtedness described under clauses (6), (7), (8) and (9) only, if greater, committed amount of the Indebtedness described under clauses (6), (7), (8) and (9) at the time the original Lien became a Permitted Lien under this Indenture, and (ii) an amount necessary to pay any fees and expenses, including premiums, related to such refinancing, refunding, extension, renewal or replacement;

(18) deposits made in the ordinary course of business to secure liability to insurance carriers;

(19) other Liens securing obligations incurred in the ordinary course of business which obligations do not exceed $15.0 million at any one time outstanding;

(20) Liens securing judgments for the payment of money not constituting an Event of Default under Section 6.01(5) hereof so long as such Liens are adequately bonded and any appropriate legal proceedings that may have been duly initiated for the review of such judgment have not been finally terminated or the period within which such proceedings may be initiated has not expired;

(21) Liens in favor of customs and revenue authorities arising as a matter of law to secure payment of customs duties in connection with the importation and exportation of goods in the ordinary course of business;

(22) Liens (i) of a collection bank arising under Section 4-210 of the Uniform Commercial Code (or any comparable or successor provision) on items in the course of collection, (ii) attaching to commodity trading accounts or other commodity brokerage accounts incurred in the ordinary course of business, and (iii) in favor of banking institutions arising as a matter of law encumbering deposits (including the right of setoff) and which are within the general parameters customary in the banking industry;

(23) Liens deemed to exist in connection with Investments in repurchase agreements permitted under Section 4.09 hereof; provided that such Liens do not extend to any assets other than those that are the subject of such repurchase agreement;

(24) Liens encumbering reasonable customary initial deposits and margin deposits and similar Liens attaching to commodity trading accounts or other brokerage accounts incurred in the ordinary course of business and not for speculative purposes;

(25) Liens that are contractual rights of set-off (i) relating to the establishment of depository relations with banks not given in connection with the issuance of Indebtedness, (ii) relating to pooled deposit or sweep accounts of the Issuer or any of its Restricted Subsidiaries to permit satisfaction of overdraft or similar obligations incurred in the ordinary course of business of the Issuer and its Restricted Subsidiaries or (iii) relating to purchase orders and other agreements entered into with customers of the Issuer or any of its Restricted Subsidiaries in the ordinary course of business;

(26) Liens on accounts receivable and related assets contemplated by a Qualified Receivables Financing;

(27) Liens on property or assets securing Indebtedness used to defease or to satisfy and discharge the Notes in their entirety; provided that the incurrence of such Indebtedness and such defeasance or satisfaction and discharge were not prohibited by this Indenture;

(28) Non-recourse Liens on the Equity Interests of an Unrestricted Subsidiary to secure Obligations of such Unrestricted Subsidiary;

(29) Liens on Equity Interests deemed to exist in connection with any options, put and call arrangements, rights of first refusal and similar rights relating to Investments in Persons that are not Subsidiaries under this Indenture; and

(30) Liens incurred to secure Obligations in respect of any Indebtedness permitted to be incurred pursuant to Section 4.09 provided that, with respect to Liens securing Obligations permitted under this clause (30), at the time of incurrence and after giving pro forma effect thereto, the Consolidated Secured Debt Ratio would be no greater than 2.35 to 1.0 provided that, for purposes of calculating the Consolidated secured Debt Ratio, the maximum amount of Indebtedness under Credit Facilities then permitted under Section 4.09(b)(1) shall be deemed to be drawn.

For purposes of this definition, the term “Indebtedness” shall be deemed to include interest on such Indebtedness. For purposes of determining compliance with this definition, (A) Permitted Liens need not be incurred solely by reference to one category of Permitted Liens described above, but are permitted to be incurred in part under any combination thereof and (B) in the event that a Lien (or any portion thereof) meets the criteria of one or more of the categories of Permitted Liens described above, the Issuer may in its sole discretion, classify or reclassify such item of Permitted Liens (or any portion thereof) in any manner that complies with this definition and the Issuer may divide and classify a Lien in more than one of the types of Permitted Liens in the above clauses.

“Permitted Tax Distributions” means any payments, dividends or distributions by the Issuer to any direct or indirect parent in order to pay consolidated, combined, unitary or affiliated federal, state or local taxes not payable directly by the Issuer or any of their Subsidiaries which payments by the Issuer are not in excess of the tax liabilities that would have been payable by the Issuer and its Subsidiaries on a consolidated basis (were the Issuer the common parent of a consolidated group consisting of the Issuer and the Issuer’s Subsidiaries).

“Person” means any individual, corporation, limited liability company, partnership, joint venture, association, joint stock company, trust, unincorporated organization, government or any agency or political subdivision thereof or any other entity.

“Preferred Stock” means any Equity Interest with preferential rights of payment of dividends or upon liquidation, dissolution, or winding up.

“Private Placement Legend” means the legend set forth in Section 2.06(f)(i) hereof to be placed on all Notes issued under this Indenture, except where otherwise permitted by the provisions of this Indenture.

“QIB” means a “qualified institutional buyer” as defined in Rule 144A.

“Qualified Proceeds” means assets that are used or useful in, or Capital Stock of any Person engaged in, a Similar Business; provided that the fair market value of any such assets or Capital Stock shall be determined in good faith by the Issuer.

“Qualified Receivables Financing” means any transaction or series of transactions entered into by the Issuer or any of its Restricted Subsidiaries pursuant to which the Issuer or any of its Restricted Subsidiaries sells, conveys or otherwise transfers to (i) a Receivables Subsidiary (in the case of a transfer by the Issuer or any of its Restricted Subsidiaries) and (ii) any other Person (in the case of a transfer by a Receivables Subsidiary), or grants a security interest in, any accounts receivable (whether now existing or arising in the future) of the Issuer or any of its Restricted Subsidiaries, and any assets related thereto including, without limitation, all collateral securing such accounts receivable, all contracts and all guarantees or other obligations in respect of such accounts receivable, proceeds of such accounts receivable and other assets which are customarily transferred or in respect of which security interests are customarily granted.

“Rating Agencies” mean Moody’s and S&P; provided that if S&P, Moody’s or any Successor Rating Agency (as defined below) shall cease to be in the business of providing rating services for debt securities generally, the Issuer shall be entitled to replace any such Rating Agency or Successor Rating Agency, as the case may be, which has ceased to be in the business of providing rating services for debt securities generally with a security rating agency which is in the business of providing rating services for debt securities generally and which is nationally recognized in the United States (such rating agency, a “Successor Rating Agency”).

“Receivables Subsidiary” means a Subsidiary of the Issuer (or another Person formed for the purposes of engaging in a Qualified Receivables Financing with the Issuer or its Restricted Subsidiaries in which the Issuer or any Restricted Subsidiary of the Issuer makes an Investment and to which the Issuer or any Restricted Subsidiary of the Issuer transfers accounts receivable and related assets) which engages in no activities other than in connection with the financing of accounts receivable of the Issuer and its Restricted Subsidiaries, all proceeds thereof and all rights (contractual or other), collateral and other assets relating thereto, and any business or activities incidental or related to such business, and which is designated by the board of directors or Equivalent Managing Body of the Issuer (as provided below) as a Receivables Subsidiary and:

(a) no portion of the Indebtedness or any other obligations (contingent or otherwise) of which (i) is guaranteed by the Issuer or any of its Restricted Subsidiaries (excluding guarantees of obligations (other than the principal of, and interest on, Indebtedness) pursuant to Standard Securitization Undertakings), (ii) is recourse to or obligates the Issuer or any other Subsidiary of the Issuer in any way other than pursuant to Standard Securitization Undertakings, or (iii) subjects any property or asset of the Issuer or any other Subsidiary of the Issuer, directly or indirectly, contingently or otherwise, to the satisfaction thereof, other than pursuant to Standard Securitization Undertakings,

(b) with which neither the Issuer nor any of its Restricted Subsidiaries has any material contract, agreement, arrangement or understanding other than on terms which the Issuer reasonably believes to be no less favorable to the Issuer or such Restricted Subsidiary than those that might be obtained at the time from Persons that are not Affiliates of the Issuer, and

(c) to which neither the Issuer nor any of its Restricted Subsidiaries has any obligation to maintain or preserve such entity’s financial condition or cause such entity to achieve certain levels of operating results.

Any such designation by the board of directors or Equivalent Managing Body of the Issuer shall be evidenced to the Trustee by filing with the Trustee a certified copy of the resolution of the board of directors or Equivalent Managing Body of the Issuer giving effect to such designation and an Officer’s Certificate certifying that such designation complied with the foregoing conditions.

“Record Date” for the interest payable on any applicable Interest Payment Date means January 1 or July 1 (whether or not a Business Day) next preceding such Interest Payment Date.

“Regulation S” means Regulation S promulgated under the Securities Act.

“Regulation S Global Note” means a Global Note substantially in the form of Exhibit A hereto, bearing the Global Note Legend and the Private Placement Legend and deposited with or on behalf of, and registered in the name of, the Depositary or its nominee, issued in a denomination equal to the outstanding principal amount of the Notes sold or to be sold in reliance on Rule 903.

“Replacement Assets” means (a) substantially all the assets of a business operating or engaged in a Similar Business, (b) Capital Stock in any Person operating or engaged in a Similar Business that results in the Issuer or another of the Restricted Subsidiaries, as the case may be, owning an amount of the Capital Stock of such Person such that it constitutes a Restricted Subsidiary or (c) any other property or assets, in the case of each of clauses (a) through (c), used or useful in a Similar Business.

“Responsible Officer” means, when used with respect to the Trustee, any officer within the corporate trust department of the Trustee, including any vice president, assistant vice president, trust officer, assistant trust officer or any other officer of the Trustee who customarily performs functions similar to those performed by the Persons who at the time shall be such officers, respectively, or to whom any corporate trust matter is referred because of such Person’s knowledge of and familiarity with the particular subject and who shall have direct responsibility for the administration of this Indenture.

“Restricted Definitive Note” means a Definitive Note bearing the Private Placement Legend.

“Restricted Global Note” means a Global Note bearing the Private Placement Legend.

“Restricted Investment” means an Investment other than a Permitted Investment.

“Restricted Period” means the 40-day distribution compliance period as defined in Regulation S.

“Restricted Subsidiary” means, at any time, any direct or indirect Subsidiary of the Issuer (including any Foreign Subsidiary) that is not then an Unrestricted Subsidiary; provided, however, that upon the occurrence of an Unrestricted Subsidiary ceasing to be an Unrestricted Subsidiary, such Subsidiary shall be included in the definition of “Restricted Subsidiary.”

“Rule 144” means Rule 144 promulgated under the Securities Act.

“Rule 144A” means Rule 144A promulgated under the Securities Act.

“Rule 903” means Rule 903 promulgated under the Securities Act.

“Rule 904” means Rule 904 promulgated under the Securities Act.

“S&P” means Standard & Poor’s, a division of The XxXxxx-Xxxx Companies, Inc., and any successor to its rating agency business.

“Sale and Lease-Back Transaction” means any arrangement providing for the leasing by the Issuer or any of its Restricted Subsidiaries of any real or tangible personal property, which property

has been or is to be sold or transferred by the Issuer or such Restricted Subsidiary to a third Person in contemplation of such leasing.

“SEC” means the U.S. Securities and Exchange Commission.

“Secured Indebtedness” means any Indebtedness of the Issuer or any of its Restricted Subsidiaries secured by a Lien.

“Securities Act” means the Securities Act of 1933, as amended, and the rules and regulations of the SEC promulgated thereunder.

“Senior Secured Credit Facility” means the Credit Facility under the Credit Agreement to be entered into as of the Issue Date, by and among, the Issuer, as borrower, the lenders party thereto, and General Electric Capital Corporation, as administrative agent, including any guarantees, collateral documents, instruments and agreements executed in connection therewith, and any amendments, supplements, modifications, extensions, renewals, restatements, refundings or refinancings thereof and any indentures or credit facilities or commercial paper facilities with banks or other institutional lenders or investors that replace, refund or refinance any part of the loans, notes, other credit facilities or commitments thereunder, including any such replacement, refunding or refinancing facility or indenture that increases the amount borrowable thereunder or alters the maturity thereof (provided that such increase in borrowings is permitted under Section 4.09).

“Significant Subsidiary” means any Restricted Subsidiary that would be a “significant subsidiary” as defined in Article 1, Rule 1-02 of Regulation S-X, promulgated pursuant to the Securities Act, as such regulation is in effect on the Issue Date.

“Similar Business” means any business conducted or proposed to be conducted by the Issuer and its Restricted Subsidiaries on the Issue Date or any business that is similar, reasonably related, incidental or ancillary thereto.

“Specified Assets” means the Issuer’s interest in that certain Joint Venture and Shareholders Agreement dated as of March 13, 2007 between the Issuer and GVK Biosciences Private Limited and that certain Amended and Restated Cooperative Joint Venture Contract dated as of July 5, 2000 between Acer/Excel Inc. and Beijing Wits Science & Technology Co., Ltd.

“Sponsors” means any of Avista Capital Partners II, LP, Avista Capital Partners II GP, LLC and Ontario Teachers’ Pension Plan Board and each of their respective Affiliates other than any portfolio company thereof.

“Standard Securitization Undertakings” means representations, warranties, covenants, indemnities and guarantees of performance entered into by the Issuer or any Subsidiary of the Issuer which the Issuer has determined in good faith to be customary in an accounts receivable securitization transaction.

“Subordinated Indebtedness” means, with respect to the Notes or the Guarantee of a Guarantor,

(1) any Indebtedness of the Issuer which is by its terms subordinated in right of payment to the Notes, and

(2) any Indebtedness of any Guarantor which is by its terms subordinated in right of payment to the Guarantee of such entity of the Notes or the Guarantee of a Guarantor.

“Subsidiary” means, with respect to any Person:

(1) any corporation, association, or other business entity (other than a partnership, joint venture, limited liability company or similar entity) of which more than 50% of the total voting power of shares of Capital Stock entitled (without regard to the occurrence of any contingency) to vote in the election of directors, managers or trustees thereof is at the time of determination owned or controlled, directly or indirectly, by such Person or one or more of the other Subsidiaries of that Person or a combination thereof or is consolidated under GAAP with such Person at such time; and

(2) any partnership, joint venture, limited liability company or similar entity of which

(x) more than 50% of the capital accounts, distribution rights, total equity and voting interests or general or limited partnership interests, as applicable, are owned or controlled, directly or indirectly, by such Person or one or more of the other Subsidiaries of that Person or a combination thereof whether in the form of membership, general, special or limited partnership or otherwise, and

(y) such Person or any Restricted Subsidiary of such Person is a controlling general partner or otherwise controls such entity.

“Total Assets” means the total assets of the Issuer and its Restricted Subsidiaries on a consolidated basis, as shown on the most recent consolidated balance sheet of the Issuer and its Restricted Subsidiaries and computed in accordance with GAAP. Total Assets shall be calculated after giving pro forma effect to the transaction giving rise to the need to calculate Total Assets.

“Transactions” means the transactions contemplated by the Transaction Agreement, the issuance of the Notes and the entry into and borrowings under the Senior Secured Credit Facility and repayment of existing indebtedness, to be consummated in connection with the foregoing on the Issue Date.

“Transaction Agreement” means the Agreement and Plan of Merger dated as of May 4, 2011, by and among INC Research LLC, Triangle Two Acquisition Corp and Xxxxxx International, Inc.

“Treasury Rate” means, as of any Redemption Date, the yield to maturity as of such Redemption Date of United States Treasury securities with a constant maturity (as compiled and published in the most recent Federal Reserve Statistical Release H.15 (519) that has become publicly available at least two Business Days prior to the Redemption Date (or, if such Statistical Release is no longer published, any publicly available source of similar market data)) most nearly equal to the period from the Redemption Date to July 15, 2015; provided, however, that if the period from the Redemption Date to July 15, 2015 is less than one year, the weekly average yield on actually traded United States Treasury securities adjusted to a constant maturity of one year will be used.

“Trident Acquisition” means the acquisition of Trident Clinical Research Pty Ltd by the Issuer on June 1, 2011.

“Trust Indenture Act” means the Trust Indenture Act of 1939, as amended (15 U.S.C §§ 77aaa-77bbbb).

“Trustee” means Wilmington Trust, National Association, as trustee, until a successor replaces it in accordance with the applicable provisions of this Indenture and thereafter means the successor serving hereunder.

“Unrestricted Definitive Note” means one or more Definitive Notes that do not bear and are not required to bear the Private Placement Legend.

“Unrestricted Global Note” means a permanent Global Note, substantially in the form of Exhibit A attached hereto, that bears the Global Note Legend and that has the “Schedule of Exchanges of Interests in the Global Note” attached thereto, and that is deposited with or on behalf of and registered in the name of the Depositary, representing Notes that do not bear the Private Placement Legend.

“Unrestricted Subsidiary” means:

(1) any Subsidiary of the Issuer which at the time of determination is an Unrestricted Subsidiary (as designated by the Issuer, as provided below); and

(2) any Subsidiary of an Unrestricted Subsidiary.

The Issuer may designate any Subsidiary of the Issuer (including any existing Subsidiary and any newly acquired or newly formed Subsidiary) to be an Unrestricted Subsidiary unless such Subsidiary or any of its Subsidiaries owns any Equity Interests or Indebtedness of, or owns or holds any Lien on any property of, the Issuer or any Subsidiary of the Issuer(other than solely any Subsidiary of the Subsidiary to be so designated); provided that

(1) any Unrestricted Subsidiary must be an entity of which the Equity Interests entitled to cast at least a majority of the votes that may be cast by all Equity Interests having ordinary voting power for the election of directors or Persons performing a similar function are owned, directly or indirectly, by the Issuer;

(2) such designation complies with Section 4.07 hereof; and

(3) each of:

(a) the Subsidiary to be so designated; and

(b) its Subsidiaries

has not at the time of designation, and does not thereafter, create, incur, issue, assume, guarantee or otherwise become directly or indirectly liable with respect to any Indebtedness pursuant to which the lender has recourse to any of the assets of the Issuer or any Restricted Subsidiary.

The Issuer may designate any Unrestricted Subsidiary to be a Restricted Subsidiary; provided that, immediately after giving effect to such designation, no Default shall have occurred and be continuing and the Issuer could incur at least $1.00 of additional Indebtedness pursuant to the Fixed Charge Coverage Ratio test described in Section 4.09(a) hereof.

Any such designation by the Issuer shall be notified by the Issuer to the Trustee by promptly filing with the Trustee a copy of the resolution of the board of directors of the Issuer or any committee thereof giving effect to such designation and an Officer’s Certificate certifying that such designation complied with the foregoing provisions.

“U.S. Person” means a U.S. person as defined in Rule 902(k) promulgated under the Securities Act.

“Voting Stock” of any Person as of any date means the Capital Stock of such Person that is at the time entitled to vote, directly or indirectly, in the election of the board of directors or Equivalent Managing Body of such Person and, in the case of Holdings, the Class A common stock of Holdings issued as of the Issue Date or any other Capital Stock of Holdings having equivalent rights.

“Weighted Average Life to Maturity” means, when applied to any Indebtedness, Disqualified Stock or Preferred Stock, as the case may be, at any date, the quotient obtained by dividing:

(1) the sum of the products of the number of years from the date of determination to the date of each successive scheduled principal payment of such Indebtedness or redemption or similar payment with respect to such Disqualified Stock or Preferred Stock multiplied by the amount of such payment; by

(2) the sum of all such payments.

“Wholly-Owned Restricted Subsidiary” of any Person means a Restricted Subsidiary of such Person that is a Wholly-Owned Subsidiary.

“Wholly-Owned Subsidiary” of any Person means a Subsidiary of such Person, 100% of the outstanding Equity Interests of which (other than directors’ qualifying shares) shall at the time be owned by such Person or by one or more Wholly-Owned Subsidiaries of such Person.

Section 1.02 Other Definitions.

Term		Defined in Section
“Affiliate Transaction”		4.11
“Asset Sale Offer”		4.10
“Authentication Order”		2.02
“Change of Control Offer”		4.14
“Change of Control Payment”		4.14
“Change of Control Payment Date”		4.14
“Covenant Defeasance”		8.03
“DTC”		2.03
“Event of Default”		6.01
“Excess Proceeds”		4.10
“incur”		4.09
“Initial Lien”		4.12
“Legal Defeasance”		8.02
“Note Register”		2.03
“Offer Amount”		3.09
“Offer Period”		3.09
“Paying Agent”		2.03
“Purchase Date”		3.09
“Redemption Date”		3.07
“Refinancing Indebtedness”		4.09
“Registrar”		2.03

Term		Defined in Section
“Restricted Payments”		4.07
“Reversion Date”		4.16
“Successor Company”		5.01
“Successor Person”		5.01
“Suspended Covenants”		4.16
“Suspension Date”		4.16
“Suspension Period”		4.16
“Treasury Capital Stock”		4.07
“Tax Group”		4.07

Section 1.03 Incorporation by Reference of Trust Indenture Act.

Whenever this Indenture expressly refers to a provision of the Trust Indenture Act, the provision is incorporated by reference in and made a part of this Indenture.

The following Trust Indenture Act term used in this Indenture has the following meanings:

“obligor” on the Notes and the Guarantees means the Issuer and the Guarantors, respectively, and any successor obligor upon the Notes and the Guarantees, respectively.

All other terms used in this Indenture that are defined by the Trust Indenture Act, defined by Trust Indenture Act reference to another statute or defined by SEC rule under the Trust Indenture Act have the meanings so assigned to them.

Section 1.04 Rules of Construction.

Unless the context otherwise requires:

(a) a term has the meaning assigned to it;

(b) an accounting term not otherwise defined has the meaning assigned to it in accordance with GAAP;

(d) “will” shall be interpreted to express a command;

(e) references to sections of, or rules under, the Securities Act or the Exchange Act shall be deemed to include substitute, replacement or successor sections or rules adopted by the SEC from time to time;

(f) unless the context otherwise requires, any reference to an “Article,” “Section” or “clause” refers to an Article, Section or clause, as the case may be, of this Indenture;

(g) the words “herein,” “hereof” and “hereunder” and other words of similar import refer to this Indenture as a whole and not any particular Article, Section, clause or other subdivision;

(h) words used herein implying any gender shall apply to both genders; and

(i) the words “including,” “includes” and similar words shall be deemed to be followed by “without limitation.”

Section 1.05 Acts of Holders.

(a) Any request, demand, authorization, direction, notice, consent, waiver or other action provided by this Indenture to be given or taken by Holders may be embodied in and evidenced by one or more instruments of substantially similar tenor signed by such Holders in person or by an agent duly appointed in writing. Except as herein otherwise expressly provided, such action shall become effective when such instrument or instruments or record or both are delivered to the Trustee and, where it is hereby expressly required, to the Issuer. Proof of execution of any such instrument or of a writing appointing any such agent, or the holding by any Person of a Note, shall be sufficient for any purpose of this Indenture and (subject to Section 7.01) conclusive in favor of the Trustee and the Issuer, if made in the manner provided in this Section 1.05.

(b) The fact and date of the execution by any Person of any such instrument or writing may be proved by the affidavit of a witness of such execution or by the certificate of any notary public or other officer authorized by law to take acknowledgments of deeds, certifying that the individual signing such instrument or writing acknowledged to him the execution thereof. Where such execution is by or on behalf of any legal entity other than an individual, such certificate or affidavit shall also constitute proof of the authority of the Person executing the same. The fact and date of the execution of any such instrument or writing, or the authority of the Person executing the same, may also be proved in any other manner that the Trustee deems sufficient.

(d) Any request, demand, authorization, direction, notice, consent, waiver or other action by the Holder of any Note shall bind every future Holder of the same Note and the Holder of every Note issued upon the registration of transfer thereof or in exchange therefor or in lieu thereof, in respect of any action taken, suffered or omitted by the Trustee or the Issuer in reliance thereon, whether or not notation of such action is made upon such Note.

(e) The Issuer may, in the circumstances permitted by the Trust Indenture Act, set a record date for purposes of determining the identity of Holders entitled to give any request, demand, authorization, direction, notice, consent, waiver or take any other act, or to vote or consent to any action by vote or consent authorized or permitted to be given or taken by Holders. Unless otherwise specified, if not set by the Issuer prior to the first solicitation of a Holder made by any Person in respect of any such action, or in the case of any such vote, prior to such vote, any such record date, if there is to be a record date, shall be a date not earlier than the date 30 days prior to the first solicitation of such consent and not later than the date such solicitation is completed.

(f) Without limiting the foregoing, a Holder entitled to take any action hereunder with regard to any particular Note may do so with regard to all or any part of the principal amount of such Note or by one or more duly appointed agents, each of which may do so pursuant to such appointment with regard to all or any part of such principal amount. Any notice given or action taken by a Holder or its agents with regard to different parts of such principal amount pursuant to this paragraph shall have the same effect as if given or taken by separate Holders of each such different part.

(g) Without limiting the generality of the foregoing, a Holder, including DTC, that is the Holder of a Global Note, may make, give or take, by a proxy or proxies duly appointed in writing, any request, demand, authorization, direction, notice, consent, waiver or other action provided in this Indenture to be made, given or taken by Holders, and any Person that is the Holder of a Global Note, including DTC, may provide its proxy or proxies to the beneficial owners of interests in any such Global Note through such depositary’s standing instructions and customary practices.

ARTICLE II

THE NOTES

Section 2.01 Form and Dating; Terms.

(a) General. The Notes and the Trustee’s certificate of authentication shall be substantially in the form of Exhibit A hereto. The Notes may have notations, legends or endorsements required by law, stock exchange rules or usage in addition to those set forth on Exhibit A. Each Note shall be dated the date of its authentication. The Notes shall be in minimum amounts of $2,000 and integral multiples of $1,000 in excess of $2,000.

(b) Global Notes. Notes issued in global form shall be substantially in the form of Exhibit A attached hereto (including the Global Note Legend thereon and the “Schedule of Exchanges of Interests in the Global Note” attached thereto). Notes issued in definitive form shall be substantially in the form of Exhibit A attached hereto (but without the Global Note Legend thereon and without the “Schedule of Exchanges of Interests in the Global Note” attached thereto). Each Global Note shall represent such aggregate principal amount of the outstanding Notes as shall be specified in the “Schedule of Exchanges of Interests in the Global Note” attached thereto and each shall provide that it shall represent up to the aggregate principal amount of Notes from time to time endorsed thereon and that the aggregate principal amount of outstanding Notes represented thereby may from time to time be reduced or increased, as applicable, to reflect exchanges and redemptions and transfers of interests therein. Any endorsement of a Global Note to reflect the amount of any increase or decrease in the aggregate principal amount of outstanding Notes represented thereby shall be made by the Trustee or the Custodian, at the direction of the Trustee, in accordance with instructions given by the Holder thereof as required by Section 2.06 hereof.

(c) Participants shall have no rights under this Indenture or any Global Note with respect to any Global Note held on their behalf by the Depositary or by the Trustee as custodian for the Depositary, and the Depositary shall be treated by the Issuer, the Trustee and any agent of the Issuer or the Trustee as the absolute owner of such Global Note for all purposes whatsoever. Notwithstanding the foregoing, nothing herein shall prevent the Issuer, the Trustee or any agent of the Issuer or the Trustee from giving effect to any written certification, proxy or other authorization furnished by the Depositary or impair, as between the Depositary and its Participants, the Applicable Procedures or the operation of customary practices of the Depositary governing the exercise of the rights of a holder of a beneficial interest in any Global Note.

(d) Terms. The aggregate principal amount of Initial Notes that may be authenticated and delivered under this Indenture on the Issue Date is $300,000,000, and the aggregate amount of Additional Notes that may be authenticated and delivered under this Indenture is unlimited (so long as not otherwise prohibited by the terms of this Indenture, including Section 4.09 hereof). With respect to any Additional Notes, the Issuer shall set forth in (1) a Board Resolution and (2) (i) an Officer’s Certificate or (ii) one or more indentures supplemental hereto, the following information:

(A) the aggregate principal amount of such Additional Notes to be authenticated and delivered pursuant to this Indenture;

(B) the issue price and the issue date of such Additional Notes, including the date from which interest shall accrue; and

In authenticating and delivering Additional Notes, the Trustee shall be entitled to receive and shall be fully protected in relying upon, in addition to the Opinion of Counsel and Officer’s Certificate required by Section 12.04, an Opinion of Counsel as to the due authorization, execution, delivery, validity and enforceability of such Additional Notes.

The terms and provisions contained in the Notes shall constitute, and are hereby expressly made, a part of this Indenture and the Issuer, the Guarantors and the Trustee, by their execution and delivery of this Indenture, expressly agree to such terms and provisions and to be bound thereby. However, to the extent any provision of any Note conflicts with the express provisions of this Indenture, the provisions of this Indenture shall govern and be controlling.

The Notes shall be subject to repurchase by the Issuer pursuant to an Asset Sale Offer as provided in Section 4.10 hereof or a Change of Control Offer as provided in Section 4.14 hereof. The Notes shall not be redeemable, other than as provided in Article 3.

(e) Euroclear and Clearstream Procedures Applicable. The provisions of the “Operating Procedures of the Euroclear System” and “Terms and Conditions Governing Use of Euroclear” and the “General Terms and Conditions of Clearstream Banking” and “Customer Handbook” of Clearstream shall be applicable to transfers of beneficial interests in the Regulation S Global Note that are held by Participants through Euroclear or Clearstream.

Section 2.02 Execution and Authentication.

One Officer shall execute the Notes on behalf of the Issuer by manual or facsimile signature.

If an Officer whose signature is on a Note no longer holds that office at the time a Note is authenticated, the Note shall nevertheless be valid.

A Note shall not be entitled to any benefit under this Indenture or be valid or obligatory for any purpose until authenticated substantially in the form of Exhibit A attached hereto, as the case may be, by the manual signature of the Trustee. The signature shall be conclusive evidence that the Note has been duly authenticated and delivered under this Indenture.

On the Issue Date, the Trustee shall, upon receipt of an Issuer Order directing authentication (an “Authentication Order”), authenticate and deliver the Initial Notes specified in such Authentication Order. In addition, at any time, from time to time, the Trustee shall upon receipt of an Authentication Order authenticate and deliver any Additional Notes for an aggregate principal amount specified in such Authentication Order for such Additional Notes issued hereunder.

The Trustee may appoint an authenticating agent acceptable to the Issuer to authenticate Notes. Unless otherwise provided in such appointment, an authenticating agent may authenticate Notes

whenever the Trustee may do so. Each reference in this Indenture to authentication by the Trustee includes authentication by such agent. An authenticating agent shall have the same rights as the Trustee to deal with Holders, the Issuer or an Affiliate of the Issuer.

Section 2.03 Registrar and Paying Agent.

The Issuer shall maintain at an office or agency designated pursuant to Section 4.02 a register in which, subject to such reasonable regulations as it may prescribe, the Issuer shall provide for the registration of Notes and the transfer or exchange of Notes (the “Note Register”). The Issuer may appoint one or more co-registrars and one or more additional paying agents. The term “Registrar” includes any co-registrar and the term “Paying Agent” includes any additional paying agent. The Issuer may change any Paying Agent or Registrar without notice to any Holder but upon written notice to such Registrar or Paying Agent and to the Trustee; provided, however, that no such removal shall become effective until (i) acceptance of any appointment by a successor as evidenced by an appropriate agreement entered into by the Issuer and such successor Registrar or Paying Agent, as the case may be, and delivered to the Trustee and the passage of any waiting or notice periods required by DTC procedures or (ii) written notification to the Trustee that the Trustee shall serve as Registrar or Paying Agent until the appointment of a successor in accordance with clause (i) above. The Registrar or Paying Agent may resign at any time upon written notice to the Issuer and the Trustee. The Issuer shall notify the Trustee in writing of the name and address of any Agent not a party to this Indenture. If the Issuer fails to appoint or maintain another entity as Registrar or Paying Agent, the Trustee shall act as such. The Issuer or any of its Subsidiaries may act as Paying Agent or Registrar.

The Issuer initially appoints The Depository Trust Company (“DTC”) to act as Depositary with respect to the Global Notes.

The Issuer initially appoints the Trustee to act as the Paying Agent and Registrar for the Notes and to act as Custodian with respect to the Global Notes.

Section 2.04 Paying Agent To Hold Money in Trust.

The Issuer shall require each Paying Agent other than the Trustee to agree in writing that the Paying Agent shall hold in trust for the benefit of Holders or the Trustee all money held by the Paying Agent for the payment of principal, premium, if any, or interest on the Notes, and shall notify the Trustee in writing of any default by the Issuer in making any such payment. While any such default continues, the Trustee may require a Paying Agent to pay all money held by it to the Trustee. The Issuer at any time may require a Paying Agent to pay all money held by it relating to the Notes to the Trustee. Upon payment over to the Trustee, the Paying Agent (if other than the Issuer or a Subsidiary) shall have no further liability for the money. If the Issuer or a Subsidiary acts as Paying Agent, it shall segregate and hold in a separate trust fund for the benefit of the Holders all money held by it as Paying Agent. Upon any Event of Default under Sections 6.01(6) or (7), the Trustee shall serve as Paying Agent for the Notes.

Section 2.05 Holder Lists.

The Trustee shall preserve in as current a form as is reasonably practicable the most recent list available to it of the names and addresses of all Holders and shall otherwise comply with Trust Indenture Act Section 312(a). If the Trustee is not the Registrar, the Issuer shall furnish to the Trustee at least two Business Days before each Interest Payment Date and at such other times as the Trustee may request in writing, a list in such form and as of such date as the Trustee may reasonably require of the names and addresses of the Holders of Notes and the Issuer shall otherwise comply with Trust Indenture Act Section 312(a).

Section 2.06 Transfer and Exchange.

(a) Transfer and Exchange of Global Notes. Except as otherwise set forth in this Section 2.06, a Global Note may be transferred, in whole and not in part, only to another nominee of the Depositary or to a successor Depositary or a nominee of such successor Depositary or by a nominee of the Depositary to the Depositary or to another nominee of the Depositary or to a successor of the Depositary or a nominee or such successor. A beneficial interest in a Global Note may not be exchanged for a Definitive Note unless (i) the Depositary (x) notifies the Issuer that it is unwilling or unable to continue as Depositary for such Global Note or (y) has ceased to be a clearing agency registered under the Exchange Act and, in either case, a successor Depositary is not appointed by the Issuer within 90 days; (ii) there shall have occurred and be continuing an Event of Default with respect to the Notes, or (iii) the Issuer, at its option, notifies the Trustee in writing that it elects to cause the issuance of Definitive Notes; provided that in no event shall the Regulation S Global Note be exchanged by the Issuer for Definite Notes prior to the expiration of the Restricted Period. Upon the occurrence of any of the preceding events in (i), (ii) or (iii) above, Definitive Notes delivered in exchange for any Global Note or beneficial interests therein will be registered in the names, and issued in any approved denominations, requested by or on behalf of the Depositary (in accordance with its customary procedures). Global Notes also may be exchanged or replaced, in whole or in part, as provided in Sections 2.07 and 2.10 hereof. Every Note authenticated and delivered in exchange for, or in lieu of, a Global Note or any portion thereof, pursuant to this Section 2.06 or Section 2.07 or 2.10 hereof, shall be authenticated and delivered in the form of, and shall be, a Global Note, except for Definitive Notes issued subsequent to any of the preceding events in (i) or (ii) above and pursuant to Section 2.06(c) hereof. A Global Note may not be exchanged for another Note other than as provided in this Section 2.06(a); provided, however, beneficial interests in a Global Note may be transferred and exchanged as provided in Section 2.06(b) or (c) hereof.

(b) Transfer and Exchange of Beneficial Interests in the Global Notes. The transfer and exchange of beneficial interests in the Global Notes shall be effected through the Depositary, in accordance with the provisions of this Indenture and the Applicable Procedures. None of the Issuer, the Trustee, Paying Agent, nor any agent of the Issuer shall have any responsibility or liability for any aspect of the records relating to or payments made on account of beneficial ownerships interests in a Global Note or for maintaining, supervising or reviewing any records relating to such beneficial ownership interests. Beneficial interests in the Restricted Global Notes shall be subject to restrictions on transfer comparable to those set forth herein to the extent required by the Securities Act. Transfers of beneficial interests in the Global Notes also shall require compliance with either subparagraph (i) or (ii) below, as applicable, as well as one or more of the other following subparagraphs, as applicable:

(i) Transfer of Beneficial Interests in the Same Global Note. Beneficial interests in any Restricted Global Note may be transferred to Persons who take delivery thereof in the form of a beneficial interest in the same Restricted Global Note in accordance with the transfer restrictions set forth in the Private Placement Legend and any Applicable Procedures; provided, however, that prior to the expiration of the Restricted Period, transfers of beneficial interests in the Regulation S Global Note may not be made to a U.S. Person or for the account or benefit of a U.S. Person (other than an Initial Purchaser). Beneficial interests in any Unrestricted Global Note may be transferred to Persons who take delivery thereof in the form of a beneficial interest in an Unrestricted Global Note. Except as may be required by any Applicable Procedures, no written orders or instructions shall be required to be delivered to the Registrar to effect the transfers described in this Section 2.06(b)(i).

(ii) All Other Transfers and Exchanges of Beneficial Interests in Global Notes. In connection with all transfers and exchanges of beneficial interests that are not subject to Section

2.06(b)(i) hereof, the transferor of such beneficial interest must deliver to the Registrar either (A) (1) a written order from a Participant or an Indirect Participant given to the Depositary in accordance with the Applicable Procedures directing the Depositary to credit or cause to be credited a beneficial interest in another Global Note in an amount equal to the beneficial interest to be transferred or exchanged and (2) instructions given in accordance with the Applicable Procedures containing information regarding the Participant account to be credited with such increase or (B) (1) if permitted under Section 2.06(a), a written order from a Participant or an Indirect Participant given to the Depositary in accordance with the Applicable Procedures directing the Depositary to cause to be issued a Definitive Note in an amount equal to the beneficial interest to be transferred or exchanged and (2) instructions given by the Depositary to the Registrar containing information regarding the Person in whose name such Definitive Note shall be registered to effect the transfer or exchange referred to in (1) above; provided that in no event shall Definitive Notes be issued upon the transfer or exchange of beneficial interests in the Regulation S Global Note prior to (A) the expiration of the Restricted Period and (B) the receipt by the Registrar of any certificates required pursuant to Rule 903. Upon satisfaction of all of the requirements for transfer or exchange of beneficial interests in Global Notes contained in this Indenture and the Notes or otherwise applicable under the Securities Act, the Trustee shall adjust the principal amount of the relevant Global Note(s) pursuant to Section 2.06(f) hereof.

(iii) Transfer of Beneficial Interests to Another Restricted Global Note. A beneficial interest in any Restricted Global Note may be transferred to a Person who takes delivery thereof in the form of a beneficial interest in another Restricted Global Note if the transfer complies with the requirements of Section 2.06(b)(ii) hereof and the Registrar receives the following:

(A) if the transferee will take delivery in the form of a beneficial interest in the 144A Global Note, then the transferor must deliver a certificate in the form of Exhibit B hereto, including the certifications in item (1) thereof; or

(B) if the transferee will take delivery in the form of a beneficial interest in the Regulation S Global Note, then the transferor must deliver a certificate in the form of Exhibit B hereto, including the certifications in item (2) thereof.

(iv) Transfer and Exchange of Beneficial Interests in a Restricted Global Note for Beneficial Interests in an Unrestricted Global Note. A beneficial interest in any Restricted Global Note may be exchanged by any holder thereof for a beneficial interest in an Unrestricted Global Note or transferred to a Person who takes delivery thereof in the form of a beneficial interest in an Unrestricted Global Note if the exchange or transfer complies with the requirements of Section 2.06(b)(ii) hereof and the Registrar receives the following:

(1) if the holder of such beneficial interest in a Restricted Global Note proposes to exchange such beneficial interest for a beneficial interest in an Unrestricted Global Note, a certificate from such Holder substantially in the form of Exhibit C hereto, including the certifications in item (1)(a) thereof; or

(2) if the holder of such beneficial interest in a Restricted Global Note proposes to transfer such beneficial interest to a Person who shall take delivery thereof in the form of a beneficial interest in an Unrestricted Global Note, a certificate from such holder in the form of Exhibit B hereto, including the certifications in item (4) thereof;

and, in each such case set forth in this subparagraph (B), if the Registrar or the Issuer so requests or the Applicable Procedures so requires, an Opinion of Counsel in form reasonably acceptable to

the Issuer and the Registrar to the effect that such exchange or transfer is in compliance with the Securities Act and that the restrictions on transfer contained herein and in the Private Placement Legend are no longer required in order to maintain compliance with the Securities Act.

If any such transfer is effected pursuant to subparagraph (A) or (B) above at a time when an Unrestricted Global Note has not yet been issued, the Issuer shall issue and, upon receipt of an Authentication Order in accordance with Section 2.02 hereof, the Trustee shall authenticate one or more Unrestricted Global Notes in an aggregate principal amount equal to the aggregate principal amount of beneficial interests transferred pursuant to subparagraph (A) or (B) above.

Beneficial interests in an Unrestricted Global Note may not be exchanged for, or transferred to Persons who take delivery thereof in the form of, a beneficial interest in a Restricted Global Note.

(i) Beneficial Interests in Restricted Global Notes to Restricted Definitive Notes. If any holder of a beneficial interest in a Restricted Global Note proposes to exchange such beneficial interest for a Restricted Definitive Note or to transfer such beneficial interest to a Person who takes delivery thereof in the form of a Restricted Definitive Note, then, upon the occurrence of any of the events in paragraph (i) or (ii) of Section 2.06(a) hereof and receipt by the Registrar of the following documentation:

(A) if the holder of such beneficial interest in a Restricted Global Note proposes to exchange such beneficial interest for a Restricted Definitive Note, a certificate from such holder substantially in the form of Exhibit C hereto, including the certifications in item (2)(a) thereof;

(B) if such beneficial interest is being transferred to a QIB in accordance with Rule 144A, a certificate substantially in the form of Exhibit B hereto, including the certifications in item (1) thereof;

(C) if such beneficial interest is being transferred to a Non-U.S. Person in an offshore transaction in accordance with Rule 903 or Rule 904, a certificate substantially in the form of Exhibit B hereto, including the certifications in item (2) thereof;

(D) if such beneficial interest is being transferred pursuant to an exemption from the registration requirements of the Securities Act in accordance with Rule 144, a certificate substantially in the form of Exhibit B hereto, including the certifications in item (3)(a) thereof; or

(E) if such beneficial interest is being transferred to the Issuer or any of its Restricted Subsidiaries, a certificate substantially in the form of Exhibit B hereto, including the certifications in item (3)(b) thereof,

the Trustee shall cause the aggregate principal amount of the applicable Global Note to be reduced accordingly pursuant to Section 2.06(g) hereof, and the Issuer shall execute and the Trustee shall authenticate and mail to the Person designated in the instructions a Definitive Note in the applicable principal amount. Any Definitive Note issued in exchange for a beneficial interest in a Restricted Global Note pursuant to this Section 2.06(c) shall be registered in such name or names and in such authorized denomination or denominations as the holder of such beneficial interest shall instruct the Registrar through instructions from the Depositary and the Participant or Indirect Participant. The Trustee shall mail such Definitive Notes to the Persons in whose names such Notes are so registered. Any Definitive Note issued in

exchange for a beneficial interest in a Restricted Global Note pursuant to this Section 2.06(c)(i) shall bear the Private Placement Legend and shall be subject to all restrictions on transfer contained therein.

(ii) Beneficial Interests in Regulation S Global Note to Definitive Notes. Notwithstanding Sections 2.06(c)(i)(A) and (C) hereof, a beneficial interest in the Regulation S Global Note may not be exchanged for a Definitive Note or transferred to a Person who takes delivery thereof in the form of a Definitive Note prior to (A) the expiration of the Restricted Period and (B) the receipt by the Registrar of any certificates required pursuant to Rule 903(b)(3)(ii)(B) of the Securities Act, except in the case of a transfer pursuant to an exemption from the registration requirements of the Securities Act other than Rule 903 or Rule 904.

(iii) Beneficial Interests in Restricted Global Notes to Unrestricted Definitive Notes. A holder of a beneficial interest in a Restricted Global Note may exchange such beneficial interest for an Unrestricted Definitive Note or may transfer such beneficial interest to a Person who takes delivery thereof in the form of an Unrestricted Definitive Note only upon the occurrence of any of the events in subsection (i) or (ii) of Section 2.06(a) hereof and if the Registrar receives the following:

(1) if the holder of such beneficial interest in a Restricted Global Note proposes to exchange such beneficial interest for an Unrestricted Definitive Note, a certificate from such holder substantially in the form of Exhibit C hereto, including the certifications in item (1)(b) thereof; or

(2) if the holder of such beneficial interest in a Restricted Global Note proposes to transfer such beneficial interest to a Person who shall take delivery thereof in the form of an Unrestricted Definitive Note, a certificate from such holder substantially in the form of Exhibit B hereto, including the certifications in item (4) thereof;

and, in each such case set forth in this subparagraph (B), if the Registrar or the Issuer so requests or if the Applicable Procedures so requires, an Opinion of Counsel in form reasonably acceptable to the Issuer and the Registrar to the effect that such exchange or transfer is in compliance with the Securities Act and that the restrictions on transfer contained herein and in the Private Placement Legend are no longer required in order to maintain compliance with the Securities Act.

(iv) Beneficial Interests in Unrestricted Global Notes to Unrestricted Definitive Notes. If any holder of a beneficial interest in an Unrestricted Global Note proposes to exchange such beneficial interest for a Definitive Note or to transfer such beneficial interest to a Person who takes delivery thereof in the form of a Definitive Note, then, upon the occurrence of any of the events in subsection (i) or (ii) of Section 2.06(a) hereof and satisfaction of the conditions set forth in Section 2.06(b)(ii) hereof, the Trustee shall cause the aggregate principal amount of the applicable Global Note to be reduced accordingly pursuant to Section 2.06(g) hereof, and the Issuer shall execute and the Trustee shall authenticate and mail to the Person designated in the instructions a Definitive Note in the applicable principal amount. Any Definitive Note issued in exchange for a beneficial interest pursuant to this Section 2.06(c)(iv) shall be registered in such name or names and in such authorized denomination or denominations as the holder of such beneficial interest shall instruct the Registrar through instructions from or through the Depositary and the Participant or Indirect Participant. The Trustee shall mail such Definitive Notes to the Persons in whose names such Notes are so registered. Any Definitive Note issued in exchange for a beneficial interest pursuant to this Section 2.06(c)(iv) shall not bear the Private Placement Legend.

(d) Transfer and Exchange of Definitive Notes for Beneficial Interests.

(i) Restricted Definitive Notes to Beneficial Interests in Restricted Global Notes. If any Holder of a Restricted Definitive Note proposes to exchange such Note for a beneficial interest in a Restricted Global Note or to transfer such Restricted Definitive Note to a Person who takes delivery thereof in the form of a beneficial interest in a Restricted Global Note, then, upon receipt by the Registrar of the following documentation:

(A) if the Holder of such Restricted Definitive Note proposes to exchange such Note for a beneficial interest in a Restricted Global Note, a certificate from such Holder substantially in the form of Exhibit C hereto, including the certifications in item (2)(b) thereof;

(B) if such Restricted Definitive Note is being transferred to a QIB in accordance with Rule 144A, a certificate substantially in the form of Exhibit B hereto, including the certifications in item (1) thereof;

(C) if such Restricted Definitive Note is being transferred to a Non-U.S. Person in an offshore transaction in accordance with Rule 903 or Rule 904, a certificate substantially in the form of Exhibit B hereto, including the certifications in item (2) thereof;

(D) if such Restricted Definitive Note is being transferred pursuant to an exemption from the registration requirements of the Securities Act in accordance with Rule 144, a certificate substantially in the form of Exhibit B hereto, including the certifications in item (3)(a) thereof; or

(E) if such Restricted Definitive Note is being transferred to the Issuer or any of its Restricted Subsidiaries, a certificate substantially in the form of Exhibit B hereto, including the certifications in item (3)(b) thereof,

the Trustee shall cancel the Restricted Definitive Note, increase or cause to be increased in a corresponding amount pursuant to Section 2.06(g) the aggregate principal amount of, in the case of clause (A) above, the applicable Restricted Global Note, in the case of clause (B) above, the applicable 144A Global Note, and in the case of clause (C) above, the applicable Regulation S Global Note.

(ii) Restricted Definitive Notes to Beneficial Interests in Unrestricted Global Notes. A Holder of a Restricted Definitive Note may exchange such Note for a beneficial interest in an Unrestricted Global Note or transfer such Restricted Definitive Note to a Person who takes delivery thereof in the form of a beneficial interest in an Unrestricted Global Note only if the Registrar receives the following:

(1) if the Holder of such Definitive Notes proposes to exchange such Notes for a beneficial interest in the Unrestricted Global Note, a certificate from such Holder substantially in the form of Exhibit C hereto, including the certifications in item (1)(c) thereof; or

(2) if the Holder of such Definitive Notes proposes to transfer such Notes to a Person who shall take delivery thereof in the form of a beneficial interest in the Unrestricted Global Note, a certificate from such Holder substantially in the form of Exhibit B hereto, including the certifications in item (4) thereof;

the restrictions on transfer contained herein and in the Private Placement Legend are no longer required in order to maintain compliance with the Securities Act.

Upon satisfaction of the conditions of any of the subparagraphs in this Section 2.06(d)(ii), the Trustee shall cancel the Definitive Notes and increase or cause to be increased in a corresponding amount pursuant to Section 2.06(g) the aggregate principal amount of the Unrestricted Global Note.

(iii) Unrestricted Definitive Notes to Beneficial Interests in Unrestricted Global Notes. A Holder of an Unrestricted Definitive Note may exchange such Note for a beneficial interest in an Unrestricted Global Note or transfer such Definitive Notes to a Person who takes delivery thereof in the form of a beneficial interest in an Unrestricted Global Note at any time. Upon receipt of a written request for such an exchange or transfer, the Trustee shall cancel the applicable Unrestricted Definitive Note and increase or cause to be increased in a corresponding amount pursuant to Section 2.06(g) the aggregate principal amount of one of the Unrestricted Global Notes.

If any such exchange or transfer from a Definitive Note to a beneficial interest is effected pursuant to subparagraph (ii)(B), (ii)(D) or (iii) above at a time when an Unrestricted Global Note has not yet been issued, the Issuer shall issue and, upon receipt of an Authentication Order in accordance with Section 2.02 hereof, the Trustee shall authenticate one or more Unrestricted Global Notes in an aggregate principal amount equal to the principal amount of Definitive Notes so transferred.

(e) Transfer and Exchange of Definitive Notes for Definitive Notes. Upon written request by a Holder of Definitive Notes and such Holder’s compliance with the provisions of this Section 2.06(e), the Registrar shall register the transfer or exchange of Definitive Notes. Prior to such registration of transfer or exchange, the requesting Holder shall present or surrender to the Registrar the Definitive Notes duly endorsed or accompanied by a written instruction of transfer in form satisfactory to the Registrar duly executed by such Holder or by its attorney, duly authorized in writing. In addition, the requesting Holder shall provide any additional certifications, documents and information, as applicable, required pursuant to the following provisions of this Section 2.06(e):

(i) Restricted Definitive Notes to Restricted Definitive Notes. Any Restricted Definitive Note may be transferred to and registered in the name of Persons who take delivery thereof in the form of a Restricted Definitive Note if the Registrar receives the following:

(A) if the transfer will be made to a QIB in accordance with Rule 144A, then the transferor must deliver a certificate substantially in the form of Exhibit B hereto, including the certifications in item (1) thereof;

(B) if the transfer will be made pursuant to Rule 903 or Rule 904, then the transferor must deliver a certificate in the form of Exhibit B hereto, including the certifications in item (2) thereof; or

(C) if the transfer will be made pursuant to any other exemption from the registration requirements of the Securities Act, then the transferor must deliver a certificate in the form of Exhibit B hereto, including the certifications required by item (3) thereof, if applicable.

(ii) Restricted Definitive Notes to Unrestricted Definitive Notes. Any Restricted Definitive Note may be exchanged by the Holder thereof for an Unrestricted Definitive Note or transferred to a Person or Persons who take delivery thereof in the form of an Unrestricted Definitive Note if the Registrar receives the following:

(1) if the Holder of such Restricted Definitive Notes proposes to exchange such Notes for an Unrestricted Definitive Note, a certificate from such Holder substantially in the form of Exhibit C hereto, including the certifications in item (1)(d) thereof; or

(2) if the Holder of such Restricted Definitive Notes proposes to transfer such Notes to a Person who shall take delivery thereof in the form of an Unrestricted Definitive Note, a certificate from such Holder substantially in the form of Exhibit B hereto, including the certifications in item (4) thereof;

(iii) Unrestricted Definitive Notes to Unrestricted Definitive Notes. A Holder of Unrestricted Definitive Notes may transfer such Notes to a Person who takes delivery thereof in the form of an Unrestricted Definitive Note. Upon receipt of a written request to register such a transfer, the Registrar shall register the Unrestricted Definitive Notes pursuant to the instructions from the Holder thereof.

(f) Legends. The following legends shall appear on the face of all Global Notes and Definitive Notes issued under this Indenture unless specifically stated otherwise in the applicable provisions of this Indenture:

(i) Private Placement Legend.

(A) Except as permitted by subparagraphs (B), (C) and (D) below, each Global Note and each Definitive Note (and all Notes issued in exchange therefor or substitution thereof) shall bear the legend in substantially the following form:

“THIS NOTE (OR ITS PREDECESSOR) HAS NOT BEEN REGISTERED UNDER THE U.S. SECURITIES ACT OF 1933, AS AMENDED (THE ‘‘SECURITIES ACT’’), AND, ACCORDINGLY, MAY NOT BE OFFERED, SOLD, PLEDGED OR OTHERWISE TRANSFERRED WITHIN THE UNITED STATES OR TO, OR FOR THE ACCOUNT OR BENEFIT OF, U.S. PERSONS, EXCEPT AS SET FORTH IN THE NEXT SENTENCE. BY ITS ACQUISITION HEREOF OR OF A BENEFICIAL INTEREST HEREIN, THE HOLDER:

(1) REPRESENTS THAT IT IS NOT AN ‘‘AFFILIATE’’ (AS DEFINED IN RULE 144 UNDER THE SECURITIES ACT) OF INC RESEARCH, LLC AND (A) IT IS A ‘‘QUALIFIED INSTITUTIONAL BUYER’’ (AS DEFINED IN RULE 144A UNDER THE SECURITIES ACT) (A ‘‘Q1B’’), OR (B) IT HAS ACQUIRED THIS NOTE IN AN OFFSHORE TRANSACTION IN COMPLIANCE WITH REGULATION S UNDER THE SECURITIES ACT;

(2) AGREES THAT IT WILL NOT RESELL OR OTHERWISE TRANSFER THIS NOTE OR ANY BENEFICIAL INTEREST HEREIN EXCEPT (A) TO INC RESEARCH, LLC, THE ISSUER, OR ANY OF ITS SUBSIDIARIES, (B) TO A PERSON WHOM THE SELLER REASONABLY BELIEVES IS A QIB PURCHASING FOR ITS OWN ACCOUNT OR FOR THE

ACCOUNT OF A QIB IN A TRANSACTION MEETING THE REQUIREMENTS OF RULE 144A, (C) IN AN OFFSHORE TRANSACTION MEETING THE REQUIREMENTS OF RULE 903 OR 904 OF REGULATION S OF THE SECURITIES ACT, (D) IN A TRANSACTION MEETING THE REQUIREMENTS OF RULE 144 UNDER THE SECURITIES ACT, (E) IN ACCORDANCE WITH ANOTHER EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT (AND BASED UPON AN OPINION OF COUNSEL ACCEPTABLE TO THE ISSUER AND THE TRUSTEE) OR (F) PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT AND, IN EACH CASE, IN ACCORDANCE WITH THE APPLICABLE SECURITIES LAWS OF ANY STATE OF THE UNITED STATES OR ANY OTHER APPLICABLE JURISDICTION; AND

(3) AGREES THAT IT WILL DELIVER TO EACH PERSON TO WHOM THIS NOTE OR AN INTEREST HEREIN IS TRANSFERRED A NOTICE SUBSTANTIALLY TO THE EFFECT OF THIS LEGEND.

AS USED HEREIN, THE TERMS ‘‘OFFSHORE TRANSACTIONS’’ AND ‘‘UNITED STATES’’ HAVE THE MEANINGS GIVEN TO THEM BY RULE 902 OF REGULATION S UNDER THE SECURITIES ACT. THE INDENTURE CONTAINS A PROVISION REQUIRING THE TRUSTEE TO REFUSE TO REGISTER ANY TRANSFER OF THIS NOTE IN VIOLATION OF THE FOREGOING.”

(B) Notwithstanding the foregoing, any Global Note or Definitive Note issued pursuant to subparagraph (b)(iv), (c)(iii), (c)(iv), (d)(ii), (d)(iii), (e)(ii) or (e)(iii) of this Section 2.06 (and all Notes issued in exchange therefor or substitution thereof) shall not bear the Private Placement Legend.

(ii) Global Note Legend. Each Global Note shall bear a legend in substantially the following form:

“THIS GLOBAL NOTE IS HELD BY THE DEPOSITARY (AS DEFINED IN THE INDENTURE GOVERNING THIS NOTE) OR ITS NOMINEE IN CUSTODY FOR THE BENEFIT OF THE BENEFICIAL OWNERS HEREOF, AND IS NOT TRANSFERABLE TO ANY PERSON UNDER ANY CIRCUMSTANCES EXCEPT THAT (I) THE TRUSTEE MAY MAKE SUCH NOTATIONS HEREON AS MAY BE REQUIRED PURSUANT TO SECTION 2.06(g) OF THE INDENTURE, (II) THIS GLOBAL NOTE MAY BE EXCHANGED IN WHOLE BUT NOT IN PART PURSUANT TO SECTION 2.06(a) OF THE INDENTURE, (III) THIS GLOBAL NOTE MAY BE DELIVERED TO THE TRUSTEE FOR CANCELLATION PURSUANT TO SECTION 2.11 OF THE INDENTURE AND (IV) THIS GLOBAL NOTE MAY BE TRANSFERRED TO A SUCCESSOR DEPOSITARY WITH THE PRIOR WRITTEN CONSENT OF THE ISSUER. UNLESS AND UNTIL IT IS EXCHANGED IN WHOLE OR IN PART FOR NOTES IN DEFINITIVE FORM, THIS NOTE MAY NOT BE TRANSFERRED EXCEPT AS A WHOLE BY THE DEPOSITARY TO A NOMINEE OF THE DEPOSITARY OR BY A NOMINEE OF THE DEPOSITARY TO THE DEPOSITARY OR ANOTHER NOMINEE OF THE DEPOSITARY OR BY THE DEPOSITARY OR ANY

SUCH NOMINEE TO A SUCCESSOR DEPOSITARY OR A NOMINEE OF SUCH SUCCESSOR DEPOSITARY. UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY (55 XXXXX XXXXXX, XXX XXXX, XXX XXXX) (“DTC”) TO THE ISSUER OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS MAY BE REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO CEDE & CO. OR SUCH OTHER ENTITY AS MAY BE REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.”

IN THE CASE OF THE REGULATION S GLOBAL NOTE: “BENEFICIAL INTERESTS IN A RULE 144A GLOBAL NOTE MAY BE TRANSFERRED TO A PERSON WHO TAKES DELIVERY IN THE FORM OF AN INTEREST IN THE REGULATION S GLOBAL NOTE, WHETHER BEFORE OR AFTER THE EXPIRATION OF THE 40-DAY DISTRIBUTION COMPLIANCE PERIOD, ONLY IF THE TRANSFEROR FIRST DELIVERS TO THE TRUSTEE A WRITTEN CERTIFICATE (IN THE FORM ATTACHED TO THIS CERTIFICATE) TO THE EFFECT THAT SUCH TRANSFER IS BEING MADE IN ACCORDANCE WITH RULE 903 OR 904 OF REGULATION S OR RULE 144 (IF AVAILABLE).”

(g) Cancellation and/or Adjustment of Global Notes. At such time as all beneficial interests in a particular Global Note have been exchanged for Definitive Notes or a particular Global Note has been redeemed, repurchased or canceled in whole and not in part, each such Global Note shall be returned to or retained and canceled by the Trustee in accordance with Section 2.11 hereof. At any time prior to such cancellation, if any beneficial interest in a Global Note is exchanged for or transferred to a Person who will take delivery thereof in the form of a beneficial interest in another Global Note or for Definitive Notes, the principal amount of Notes represented by such Global Note shall be reduced accordingly and, if the Registrar and the Trustee are not the same entity, notice to the Trustee of such exchange or transfer an endorsement shall be made on such Global Note by the Trustee or by the Depositary at the direction of the Trustee to reflect such reduction; and if the beneficial interest is being exchanged for or transferred to a Person who will take delivery thereof in the form of a beneficial interest in another Global Note, the aggregate principal amount of such other Global Note shall be increased in a corresponding amount pursuant to this Section 2.06(g) and if the Registrar and the Trustee are not the same entity, notice to the Trustee of such exchange or transfer an endorsement shall be made on such Global Note by the Trustee or by the Depositary at the direction of the Trustee to reflect such increase.

(h) General Provisions Relating to Transfers and Exchanges.

(i) To permit registrations of transfers and exchanges, the Issuer shall execute and the Trustee shall authenticate Global Notes and Definitive Notes upon receipt of an Authentication Order in accordance with Section 2.02 hereof or at the Registrar’s written request.

(ii) No service charge shall be made to a holder of a beneficial interest in a Global Note or to a Holder of a Definitive Note for any registration of transfer or exchange, but the Issuer or the

Trustee may require payment of a sum sufficient to cover any transfer tax or similar governmental charge payable in connection therewith (other than any such transfer taxes or similar governmental charge payable upon exchange or transfer pursuant to Sections 2.07, 2.10, 3.06, 3.09, 4.10, 4.14 and 9.05 hereof).

(iii) Neither the Registrar nor the Issuer shall be required to register the transfer of or exchange any Note selected for redemption in whole or in part, except the unredeemed portion of any Note being redeemed in part.

(iv) All Global Notes and Definitive Notes issued upon any registration of transfer or exchange of Global Notes or Definitive Notes shall be the valid obligations of the Issuer, evidencing the same debt, and entitled to the same benefits under this Indenture, as the Global Notes or Definitive Notes surrendered upon such registration of transfer or exchange.

(v) The Issuer shall not be required (A) to issue, to register the transfer of or to exchange any Notes during a period beginning at the opening of business 15 days before the day of the sending of a notice of redemption of Notes for redemption under Section 3.02 hereof and ending at the close of business on the day such notice was sent, (B) to register the transfer of or to exchange any Note so selected for redemption or tendered (and not withdrawn) for repurchase in connection with a Change of Control Offer or an Asset Sale Offer in whole or in part, except the unredeemed portion of any Note being redeemed in part or (C) to register the transfer of or to exchange a Note between a Record Date and the next succeeding Interest Payment Date.

(vi) Prior to due presentment for the registration of a transfer of any Note, the Trustee, any Agent and the Issuer may deem and treat the Person in whose name any Note is registered as the absolute owner of such Note for the purpose of receiving payment of principal of (and premium, if any) and interest on such Notes and for all other purposes, and none of the Trustee, any Agent or the Issuer shall be affected by notice to the contrary.

(vii) Upon surrender for registration of transfer of any Note at the office or agency of the Issuer designated pursuant to Section 4.02 hereof, the Issuer shall execute, and the Trustee shall authenticate and mail, in the name of the designated transferee or transferees, one or more replacement Notes of any authorized denomination or denominations of a like aggregate principal amount.

(viii) At the option of the Holder, subject to Section 2.06(a), Notes may be exchanged for other Notes of any authorized denomination or denominations of a like aggregate principal amount upon surrender of the Notes to be exchanged at such office or agency. Whenever any Global Notes or Definitive Notes are so surrendered for exchange, the Issuer shall execute, and the Trustee shall authenticate and mail, the replacement Global Notes and Definitive Notes to which the Holder making the exchange is entitled in accordance with the provisions of Section 2.02 hereof.

(ix) All certifications, certificates and Opinions of Counsel required to be submitted to the Registrar pursuant to this Section 2.06 to effect a registration of transfer or exchange may be submitted by facsimile or electronically (in PDF format).

(x) The Trustee shall have no obligation or duty to monitor, determine or inquire as to compliance with any restrictions on transfer imposed under this Indenture or under applicable law with respect to any transfer of any interest in any Note (including any transfers between or among Depositary Participants or beneficial owners of interests in any Global Note) other than to require delivery of such certificates and other documentation or evidence as are expressly required by, and to do so if and when expressly required by the terms of, this Indenture, and to examine the same to determine substantial compliance as to form with the express requirements hereof.

Neither the Trustee nor any Trustee agent shall have any responsibility or liability for any actions taken or not taken by the Depositary.

Section 2.07 Replacement Notes.

If any mutilated Note is surrendered to the Trustee, the Registrar or the Issuer and the Trustee receives evidence to their satisfaction of the ownership and destruction, loss or theft of any Note, the Issuer shall issue and the Trustee, upon receipt of an Authentication Order, shall authenticate a replacement Note if the Trustee’s requirements are met. An indemnity bond must be supplied by the Holder that is sufficient in the judgment of the Trustee and the Issuer to protect the Issuer, the Trustee, the Registrar and the Paying Agent and any authenticating agent from any loss that any of them may suffer if a Note is replaced. At the Issuer’s request, such Holder shall reimburse the Issuer for its expenses in replacing a Note.

Every replacement Note issued in accordance with this Section 2.07 is a contractual obligation of the Issuer and shall be entitled to all of the benefits of this Indenture equally and proportionately with all other Notes duly issued hereunder.

Section 2.08 Outstanding Notes.

The Notes outstanding at any time are all the Notes authenticated by the Trustee except for those canceled by it, those delivered to it for cancellation, those reductions in the interest in a Global Note effected by the Trustee in accordance with the provisions hereof, and those described in this Section 2.08 as not outstanding. Except as set forth in Section 2.09 hereof, a Note does not cease to be outstanding because the Issuer or an Affiliate of the Issuer holds the Note.

If a Note is replaced pursuant to Section 2.07 hereof, it ceases to be outstanding unless the Trustee receives proof satisfactory to it that the replaced Note is held by a bona fide purchaser.

If the principal amount of any Note is considered paid under Section 4.01 hereof, it ceases to be outstanding and interest on it ceases to accrue.

If the Paying Agent (other than the Issuer, a Subsidiary or an Affiliate of any thereof) holds, on a Redemption Date or maturity date, money sufficient to pay Notes payable on that date, then on and after that date such Notes shall be deemed to be no longer outstanding and shall cease to accrue interest.

Section 2.09 Treasury Notes.

In determining whether the Holders of the required principal amount of Notes have concurred in any direction, waiver or consent, Notes owned by the Issuer, or by any Affiliate of the Issuer shall be considered as though not outstanding, except that for the purposes of determining whether the Trustee shall be protected in relying on any such direction, waiver or consent, only Notes that a Responsible Officer of the Trustee actually knows are so owned shall be so disregarded. Notes so owned which have been pledged in good faith shall not be disregarded if the pledgee establishes to the satisfaction of the Trustee the pledgee’s right to deliver any such direction, waiver or consent with respect to the pledged Notes and that the pledgee is not the Issuer or any obligor upon the Notes or any Affiliate of the Issuer or of such other obligor.

Section 2.10 Temporary Notes.

Until certificates representing Definitive Notes are ready for delivery, the Issuer may prepare and the Trustee, upon receipt of an Authentication Order, shall authenticate temporary Notes. Temporary Notes shall be substantially in the form of Definitive Notes but may have variations that the Issuer consider appropriate for temporary Notes. Without unreasonable delay, the Issuer shall prepare and the Trustee shall authenticate Definitive Notes in exchange for temporary Notes.

Holders and beneficial holders, as the case may be, of temporary Notes shall be entitled to all of the benefits accorded to Holders, or beneficial holders, respectively, of Definitive Notes under this Indenture.

Section 2.11 Cancellation.

The Issuer at any time may deliver Notes to the Trustee for cancellation. The Registrar and Paying Agent shall forward to the Trustee any Notes surrendered to them for registration of transfer, exchange or payment. The Trustee or, at the direction of the Trustee, the Registrar or the Paying Agent and no one else shall cancel all Notes surrendered for registration of transfer, exchange, payment, replacement or cancellation and shall dispose of cancelled Notes in accordance with its customary procedures (subject to the record retention requirement of the Exchange Act). The Issuer may not issue new Notes to replace Notes that it has paid or that have been delivered to the Trustee for cancellation. Certification of the cancellation of all cancelled Notes shall upon the written request of the Issuer be delivered to the Issuer.

Section 2.12 Defaulted Interest.

If the Issuer defaults in a payment of interest on the Notes, the Issuer shall pay the defaulted interest in any lawful manner plus, to the extent lawful, interest payable on the defaulted interest to the Persons who are Holders on a special record date, which may be after the existing record date, in each case at the rate provided in the Notes and in Section 4.01 hereof. The Issuer shall notify the Trustee in writing of the amount of defaulted interest proposed to be paid on each Note and the date of the proposed payment. The Trustee shall fix or cause to be fixed each such special record date and payment date; provided that no such special record date shall be less than 10 days prior to the related payment date for such defaulted interest. The Trustee shall promptly notify the Issuer of such special record date and in any event at least 20 days before such special record date. At least 15 days before the special record date, the Issuer (or, upon the written request of the Issuer, the Trustee in the name and at the expense of the Issuer) shall send or cause to be sent, via electronic transmission or by first-class postage prepaid, to each Holder a notice at his or her address as it appears in the Note Register that states the special record date, the related payment date and the amount of such interest to be paid.

Subject to the foregoing provisions of this Section 2.12 and for greater certainty, each Note delivered under this Indenture upon registration of transfer of or in exchange for or in lieu of any other Note shall carry the rights to interest accrued and unpaid, and to accrue, which were carried by such other Note.

Section 2.13 CUSIP or ISIN Numbers.

The Issuer in issuing the Notes may use CUSIP and/or ISIN numbers (if then generally in use) and, if so, the Trustee shall use CUSIP and/or ISIN numbers in notices, including notices of redemption, exchange or offers to purchase as a convenience to Holders; provided that any such notice may state that no representation is made as to the correctness of such numbers either as printed on the Notes or as

contained in any notice and that reliance may be placed only on the other identification numbers printed on the Notes, and any related redemption, exchange or offers to purchase shall not be affected by any defect in or omission of such numbers. The Issuer will as promptly as practicable notify the Trustee in writing of any change in the CUSIP and/or ISIN numbers. Additional Notes issued under this Indenture may have the same or differing CUSIP and/or ISIN numbers as those given to the Initial Notes.

ARTICLE III

REDEMPTION

Section 3.01 Notices To Trustee.

If the Issuer elects to redeem Notes pursuant to Section 3.07 hereof, it shall furnish to the Trustee, at least 30 but not more than 60 days before a Redemption Date, an Officer’s Certificate setting forth (i) the paragraph or subparagraph of such Note and/or Section of this Indenture pursuant to which the redemption shall occur, (ii) the Redemption Date, (iii) the principal amount of the Notes to be redeemed and (iv) the redemption price.

Section 3.02 Selection of Notes To Be Redeemed or Purchased.

If less than all of the Notes are to be redeemed or purchased in an offer to purchase at any time, the Trustee shall select the Notes to be redeemed or purchased (a) if the Notes are listed on any national securities exchange, in compliance with the requirements of the principal national securities exchange on which the Notes are listed (and such listing is known to the Trustee); (b) on a pro rata basis to the extent practicable (or, in the case of Global Notes, the Trustee will select Notes for redemption based on DTC’s method that most nearly approximates, a pro rata selection); or (c) by lot or such other similar method in accordance with the procedures of DTC.

The Trustee shall promptly notify the Issuer in writing of the Notes selected for redemption or purchase and, in the case of any Note selected for partial redemption or purchase, the principal amount thereof to be redeemed or purchased. Notes and portions of Notes selected shall be in amounts of $2,000 or whole multiples of $1,000 in excess of $2,000; no Notes of $2,000 or less can be redeemed in part, except that if all of the Notes of a Holder are to be redeemed or purchased, the entire outstanding amount of Notes held by such Holder, even if not a multiple of $1,000, shall be redeemed or purchased. Except as provided in the preceding sentence, provisions of this Indenture that apply to Notes called for redemption or purchase also apply to portions of Notes called for redemption or purchase.

Section 3.03 Notice of Redemption.

Subject to Section 3.09 hereof, the Issuer shall send or cause to be sent by electronic delivery or first-class mail notices of redemption at least 30 days but not more than 60 days before the redemption date to each Holder of Notes to be redeemed at such Holder’s registered address, with a copy to the Trustee, except that redemption notices may be sent more than 60 days prior to a redemption date if the notice is issued in connection with Article 8 or Article 11 hereof. Except as provided for in Section 3.07(c), notices of redemption may not be conditional.

The notice shall identify the Notes (including the CUSIP and ISIN numbers) to be redeemed and shall state:

(a) the Redemption Date;

(b) the redemption price;

(c) if any Note is to be redeemed in part only, the portion of the principal amount of that Note that is to be redeemed and that, after the Redemption Date upon surrender of such Note, a new Note or Notes in principal amount equal to the unredeemed portion of the original Note representing the same indebtedness to the extent not redeemed will be issued in the name of the Holder of the Notes upon cancellation of the original Note;

(d) the name and address of the Paying Agent;

(e) that Notes called for redemption must be surrendered to the Paying Agent to collect the redemption price;

(f) that, unless the Issuer defaults in making such redemption payment, interest on Notes called for redemption ceases to accrue on and after the Redemption Date;

(g) the paragraph or subparagraph of the Notes and/or Section of this Indenture pursuant to which the Notes called for redemption are being redeemed; and

(h) that no representation is made as to the correctness or accuracy of the CUSIP or ISIN number, if any, listed in such notice or printed on the Notes.

At the Issuer’s request, the Trustee shall give the notice of redemption in the Issuer’s name and at its expense; provided that the Issuer shall have delivered to the Trustee, at least 15 days before notice of redemption is required to be sent or caused to be sent to Holders pursuant to this Section 3.03 (unless a shorter notice shall be agreed to by the Trustee), an Officer’s Certificate requesting that the Trustee give such notice and setting forth the information to be stated in such notice as provided in the preceding paragraph.

Section 3.04 Effect of Notice of Redemption.

Once notice of redemption is sent in accordance with Section 3.03 hereof, Notes called for redemption become irrevocably due and payable on the Redemption Date at the redemption price, subject to one or more conditions precedent to the extent permitted under this Indenture. The notice, if sent in a manner herein provided, shall be conclusively presumed to have been given, whether or not the Holder receives such notice. In any case, failure to give such notice or any defect in the notice to the Holder of any Note designated for redemption in whole or in part shall not affect the validity of the proceedings for the redemption of any other Note. Subject to Section 3.05 hereof, on and after the Redemption Date, interest ceases to accrue on Notes or portions of Notes called for redemption.

Section 3.05 Deposit of Redemption or Purchase Price.

Prior to 11:00 a.m. (New York City time) on the redemption or purchase date, the Issuer shall deposit with the Trustee or with the Paying Agent money sufficient to pay the redemption or purchase price of and accrued and unpaid interest on all Notes to be redeemed or purchased on that date. The Trustee or the Paying Agent shall promptly return to the Issuer any money deposited with the Trustee or the Paying Agent by the Issuer in excess of the amounts necessary to pay the redemption price of, and accrued and unpaid interest on, all Notes to be redeemed or purchased.

If the Issuer complies with the provisions of the preceding paragraph, on and after the redemption or purchase date, interest shall cease to accrue on the Notes or the portions of Notes called for

redemption or purchase. Redemption amounts shall only be paid upon presentation and surrender of any such Notes to be redeemed. If a Note is redeemed or purchased on or after a Record Date but on or prior to the related Interest Payment Date, then any accrued and unpaid interest to the redemption or purchase date shall be paid to the Person in whose name such Note was registered at the close of business on such Record Date. If any Note called for redemption or purchase shall not be so paid upon surrender for redemption or purchase because of the failure of the Issuer to comply with the preceding paragraph, interest shall be paid on the unpaid principal, from the redemption or purchase date until such principal is paid, and to the extent lawful on any interest accrued to the redemption or purchase date not paid on such unpaid principal, in each case at the rate provided in the Notes and in Section 4.01 hereof.

Payment of the redemption price and performance of the Issuer’s obligations in connection with any redemption may be performed by another Person.

Section 3.06 Notes Redeemed or Purchased in Part.

Upon surrender of a Note that is redeemed or purchased in part, the Issuer shall issue and the Trustee shall authenticate for the Holder at the expense of the Issuer a new Note equal in principal amount to the unredeemed or unpurchased portion of the Note surrendered representing the same indebtedness to the extent not redeemed or purchased; provided that each new Note will be in a principal amount of $2,000 or an integral multiple of $1,000 in excess of $2,000. It is understood that, notwithstanding anything in this Indenture to the contrary, only an Authentication Order and not an Opinion of Counsel or Officer’s Certificate is required for the Trustee to authenticate such new Note.

Section 3.07 Optional Redemption.

(a) On and after July 15, 2015, the Issuer may redeem the Notes, in whole or in part, upon prior notice as provided in Section 3.03, at the redemption prices (expressed as percentages of principal amount of the Notes to be redeemed) set forth below, plus accrued and unpaid interest thereon, if any to, but not including, the applicable Redemption Date, subject to the right of Holders of Notes of record on the relevant Record Date to receive interest due on the relevant Interest Payment Date, if redeemed during the twelve-month period beginning on July 15 of each of the years indicated below:

Year	Percentage
2015	105.750	%
2016	102.875	%
2017 and thereafter	100.000	%

(b) At any time prior to July 15, 2015, the Issuer may redeem all or a part of the Notes, upon prior notice as provided in Section 3.03, at a redemption price equal to 100% of the principal amount of the Notes redeemed plus the Applicable Premium as of, and accrued and unpaid interest, if any to, but not including, the date of redemption (the “Redemption Date”), subject to the rights of Holders of Notes on the relevant Record Date to receive interest due on the relevant Interest Payment Date.

(c) Until July 15, 2014, the Issuer may, at its option, on one or more occasions, redeem up to 35% of the aggregate principal amount of Notes at a redemption price equal to 111.5% of the aggregate principal amount thereof, plus accrued and unpaid interest thereon, if any, to, but not including, the applicable Redemption Date, subject to the right of Holders of Notes of record on the relevant record date to receive interest due on the relevant interest payment date, with the net cash proceeds of one or more Equity Offerings; provided that at least 65% of the sum of the original aggregate principal amount of Notes issued under this Indenture and the original principal amount of any Additional Notes issued

under this Indenture after the Issue Date remains outstanding immediately after the occurrence of each such redemption; provided further that each such redemption occurs within 90 days of the date of closing of each such Equity Offering. Notice of any redemption upon any Equity Offering may be given prior to the redemption thereof, and any such redemption or notice may, at the Issuer’s discretion, be subject to one or more conditions precedent, including, but not limited to, completion of the related Equity Offering.

Section 3.08 Mandatory Redemption.

The Issuer shall not be required to make mandatory redemption or sinking fund payments with respect to the Notes. However, the Issuer may at any time and from time to time purchase Notes in the open market or otherwise.

Section 3.09 Offers To Repurchase by Application of Excess Proceeds.

(a) In the event that, pursuant to Section 4.10 hereof, the Issuer shall be required to commence an Asset Sale Offer, it shall follow the procedures specified below.

(b) The Asset Sale Offer shall remain open for a period of 20 Business Days following its commencement and no longer, except to the extent that a longer period is required by applicable law (the “Offer Period”). No later than five Business Days after the termination of the Offer Period (the “Purchase Date”), the Issuer shall apply all Excess Proceeds (the “Offer Amount”) to the purchase of Notes and, if required, Pari Passu Indebtedness (on a pro rata basis, if applicable), or, if less than the Offer Amount has been tendered, all Notes and Pari Passu Indebtedness tendered in response to the Asset Sale Offer. Payment for any Notes so purchased shall be made in the same manner as interest payments are made.

(c) If the Purchase Date is on or after a Record Date and on or before the related Interest Payment Date, any accrued and unpaid interest up to but excluding the Purchase Date, shall be paid to the Person in whose name a Note is registered at the close of business on such Record Date..

(d) Upon the commencement of an Asset Sale Offer, the Issuer shall send or cause to be sent, by first-class mail or electronic delivery, a notice to each of the Holders, with a copy to the Trustee. The notice shall contain all instructions and materials necessary to enable such Holders to tender Notes pursuant to the Asset Sale Offer. The Asset Sale Offer shall be made to all Holders and, if required, holders of Pari Passu Indebtedness. The notice, which shall govern the terms of the Asset Sale Offer, shall state:

(i) that the Asset Sale Offer is being made pursuant to this Section 3.09 and Section 4.10 hereof and the length of time the Asset Sale Offer shall remain open;

(ii) the Offer Amount, the purchase price and the Purchase Date;

(iii) that any Note not tendered or accepted for payment shall continue to accrue interest;

(iv) that, unless the Issuer defaults in making such payment, any Note accepted for payment pursuant to the Asset Sale Offer shall cease to accrue interest after the Purchase Date;

(v) that Holders electing to have a Note purchased pursuant to an Asset Sale Offer may elect to have Notes purchased in a minimum amount of $2,000, or integral multiples of $1,000 in excess thereof;

(vi) that Holders electing to have a Note purchased pursuant to any Asset Sale Offer shall be required to surrender the Note, with the form entitled “Option of Holder to Elect Purchase” attached to the Note completed, or transfer such Note by book-entry transfer, to the Issuer, the Depositary, if appointed by the Issuer, or a Paying Agent at the address specified in the notice at least three days before the Purchase Date;

(vii) that Holders shall be entitled to withdraw their election if the Issuer, the Depositary or the Paying Agent, as the case may be, receives, not later than the expiration of the Offer Period, a facsimile transmission or letter setting forth the name of the Holder, the principal amount of the Note the Holder delivered for purchase and a statement that such Holder is withdrawing his election to have such Note purchased;

(viii) that, if the aggregate principal amount of Notes and Pari Passu Indebtedness surrendered by the holders thereof exceeds the Offer Amount, the Trustee shall select the Notes and the Issuer or agent of such Pari Passu Indebtedness shall select such Pari Passu Indebtedness to be purchased on a pro rata basis based on the accreted value or principal amount of the Notes or such Pari Passu Indebtedness tendered (with such adjustments as may be deemed appropriate by the Trustee so that only Notes in a minimum amount of $2,000, or integral multiples of $1,000 in excess thereof, shall be purchased); and

(ix) that Holders whose Notes were purchased only in part shall be issued new Notes equal in principal amount to the unpurchased portion of the Notes surrendered (or transferred by book-entry transfer) representing the same indebtedness to the extent not repurchased.

(e) On or before the Purchase Date, the Issuer shall, to the extent lawful, (1) accept for payment, on a pro rata basis to the extent necessary, the Offer Amount of Notes or portions thereof validly tendered pursuant to the Asset Sale Offer, or if less than the Offer Amount has been tendered, all Notes tendered and (2) deliver or cause to be delivered to the Trustee the Notes properly accepted together with an Officer’s Certificate stating the aggregate principal amount of Notes or portions thereof so tendered.

(f) The Issuer, the Depositary or the Paying Agent, as the case may be, shall promptly mail or deliver to each tendering Holder an amount equal to the purchase price of the Notes properly tendered by such Holder and accepted by the Issuer for purchase, and the Issuer shall promptly issue a new Note, and the Trustee, upon receipt of an Authentication Order, shall authenticate and mail or deliver (or cause to be transferred by book-entry) such new Note to such Holder (it being understood that, notwithstanding anything in this Indenture to the contrary except the Officer’s Certificate required under Section 3.09(e), no Opinion of Counsel or Officer’s Certificate is required for the Trustee to authenticate and mail or deliver such new Note) in a principal amount equal to any unpurchased portion of the Note surrendered representing the same indebtedness to the extent not repurchased; provided that each such new Note shall be in a minimum principal amount of $2,000 or an integral multiple of $1,000 in excess thereof. Any Note not so accepted shall be promptly mailed or delivered by the Issuer to the Holder thereof. If required by applicable law, the Issuer shall publicly announce the results of the Asset Sale Offer on or as soon as practicable after the Purchase Date.

Other than as specifically provided in this Section 3.09 or Section 4.10 hereof, any purchase pursuant to this Section 3.09 shall be made pursuant to the applicable provisions of Sections 3.01 through 3.06 hereof.

ARTICLE IV

COVENANTS

Section 4.01 Payment of Notes.

The Issuer shall pay or cause to be paid the principal of, premium, if any, and interest on the Notes on the dates and in the manner provided in the Notes. Principal, premium, if any, and interest shall be considered paid on the date due if the Paying Agent, if other than the Issuer or a Subsidiary, holds as of 11:00 a.m. New York City time on the due date money deposited by the Issuer in immediately available funds and designated for and sufficient to pay all principal, premium, if any, and interest then due. Such Paying Agent shall, upon written request by the Issuer, return to the Issuer promptly, and in any event no later than five Business Days following such request, any money that exceeds such amount of principal, premium, if any, and interest paid on the Notes. If a payment date is not a Business Day, payment may be made on the next succeeding date that is a Business Day, and no interest shall accrue on such payment for the intervening period.

Section 4.02 Maintenance of Office or Agency.

The Issuer shall maintain an office or agency (which may be an office of the Trustee or an affiliate of the Trustee, Registrar or co-registrar) where Notes may be surrendered for registration of transfer or for exchange and where notices and demands to or upon the Issuer in respect of the Notes and this Indenture may be served. The Issuer shall give prompt written notice to the Trustee of the location, and any change in the location, of such office or agency. If at any time the Issuer shall fail to maintain any such required office or agency or shall fail to furnish the Trustee with the address thereof, such presentations, surrenders, notices and demands may be made or served at the Corporate Trust Office.

The Issuer may also from time to time designate one or more other offices or agencies where the Notes may be presented or surrendered for any or all such purposes and may from time to time rescind such designations; provided that no such designation or rescission shall in any manner relieve the Issuer of its obligation to maintain an office or agency for such purposes. The Issuer shall give prompt written notice to the Trustee of any such designation or rescission and of any change in the location of any such other office or agency.

The Issuer hereby designates the Corporate Trust Office as one such office or agency of the Issuer in accordance with Section 2.03 hereof.

Section 4.03 Reports and Other Information.

(a) So long as any Notes are outstanding, the Issuer will furnish to the Holders of the Notes and the Trustee:

(1) within 90 days (120 days for the fiscal years ended December 31, 2011) after the end of each fiscal year of the Issuer, (a) audited year-end consolidated financial statements of the Issuer and its Subsidiaries (including a balance sheet, statement of operations and statement of cash flows, but excluding any consolidating financial information required by Rule 3-10 of Regulation S-X under the Securities Act) prepared in accordance with GAAP and (b) a “Management’s Discussion and Analysis of Financial Condition and Results of Operations section as described in Item 303 of Regulation S-K under the Securities Act of the Issuer and its Subsidiaries (“MD&A”);

(2) within 45 days (or 60 days for any such quarter ending prior to December 31, 2012 after the end of each of the first three fiscal quarters of each fiscal year, (a) unaudited quarterly consolidated financial statements of the Issuer and its Subsidiaries (including a balance sheet, statement of operations and statement of cash flows and also including, for the second fiscal quarter of 2011, financial statements of Xxxxxx and its subsidiaries) prepared in accordance with GAAP and subject to normal year-end adjustments and (b) an MD&A; and

(3) within 5 Business Days after the occurrence of any of the following events, including a description in reasonable detail of such event: (i) any change in the executive officers or directors of the Issuer, (ii) any incurrence of any material on-balance sheet or material off-balance sheet long-term debt obligation or capital lease obligation (each as defined in Item 303 of Regulation S-K under the Securities Act) of or relating to the Issuer or any of its Restricted Subsidiaries, (iii) the acceleration of any Indebtedness of the Issuer or any of its Restricted Subsidiaries, (iv) any issuance or sale by the Issuer of Equity Interests of the Issuer (excluding any issuance or sale pursuant to any stock option plan in the ordinary course of business), (v) the entry into of any agreement by the Issuer or any of its Subsidiaries relating to a transaction that has resulted or may result in a Change of Control, (vi) any resignation or termination of the independent accountants of the Issuer or any engagement of any new independent accountants of the Issuer, (vii) any determination by the Issuer or the receipt of advice or notice by the Issuer from its independent accounts, in either case, relating to non-reliance on previously issued financial statements, a related audit opinion or a completed interim review, (viii) the completion by the Issuer or any of its Restricted Subsidiaries of the acquisition or disposition of a significant amount of assets, otherwise than in the ordinary course of business and (ix) the entry into, amendment of or termination of a material definitive agreement (including, without limitation, the Indenture), in each case to the extent such information would be required from an SEC registrant in a Form 8-K.

(b) So long as any Notes are outstanding, the Issuer will also:

(1) issue a press release to an internationally recognized wire service prior to posting on the website of the annual and quarterly reports required by Sections 4.03(a)(1) and (2), as contemplated by Section 4.03(b)(4), announcing the date on which such reports will be posted and directing note holders, prospective investors, broker-dealers and securities analysts to the website to obtain copies of such reports;

(2) hold a conference call to discuss its results of operations and allow participants to ask questions at the end of each call within 90 days from the end of each fiscal year (or 120 days for the 2011 and 2012 fiscal years) and within 45 days from the end of each of the first three fiscal quarters of each fiscal year (or 60 days for each such quarter ending in the 2011 and 2012 fiscal years);

(3) issue a press release to an internationally recognized wire service prior to the date of the conference call required to be held in accordance with clause (2) of this Section 4.03(b), announcing the time and date of such conference call and either including all information necessary to access the call or directing note holders, prospective investors, broker-dealers and securities analysts to contact the appropriate person at the Issuer to obtain such information; and

(4) maintain a website (which may be password protected) to which all of the reports and press releases required by this Section 4.03 are posted.

If any Subsidiary of the Issuer is an Unrestricted Subsidiary, then the quarterly and annual financial information required by this Section 4.03 will include a reasonably detailed presentation, either on the

face of the financial statements or in the footnotes thereto, and in the “MD&A” section in the Offering Memorandum, of the financial condition and results of operations of the Issuer and its Restricted Subsidiaries separate from the financial condition and results of operations of the Unrestricted Subsidiaries of the Issuer.

For so long as any Notes remain outstanding, the Issuer will furnish to the Holders and to securities analysts and prospective investors that certify that they are qualified institutional buyers, upon their request, the information described in this Section 4.03 as well as all information required to be delivered pursuant to Rule 144A(d)(4) under the Securities Act.

Notwithstanding anything to the contrary contained herein, so long as INC Research Intermediate, or any direct or indirect parent company of the Issuer, is a Guarantor of the Notes, the reports and other information required to be provided as described hereunder may, at the Issuer’s option, be provided by INC Research Intermediate or such other direct or indirect parent company of the Issuer rather than the Issuer.

Section 4.04 Compliance Certificate.

(a) The Issuer and each Guarantor (to the extent that such Guarantor is so required under the Trust Indenture Act) shall deliver to the Trustee, within 120 days after the end of each fiscal year ending after the Issue Date, a certificate from the principal executive officer, principal financial officer or principal accounting officer stating that a review of the activities of the Issuer and the Restricted Subsidiaries during the preceding fiscal year has been made under the supervision of the signing officer with a view to determining whether the Issuer has kept, observed, performed and fulfilled its obligations under this Indenture, and further stating, as to such officer signing such certificate, that to the best of his or her knowledge the Issuer has, during such fiscal year, kept, observed, performed and fulfilled each and every condition and covenant contained in this Indenture and is not in Default in the performance or observance of any of the terms, provisions, covenants and conditions of this Indenture (or, if a Default shall have occurred and be continuing, describing all such Defaults of which he or she may have knowledge).

(b) The Issuer shall within 10 Business Days after the Issuer becomes aware that any Default has occurred and is continuing deliver to the Trustee by registered or certified mail or by facsimile transmission an Officer’s Certificate specifying such event.

Section 4.05 Taxes.

The Issuer shall pay or discharge, and shall cause each of the Restricted Subsidiaries to pay or discharge, prior to delinquency, all material taxes, material lawful assessments, and material governmental levies except such as are being contested in good faith and by appropriate actions or where the failure to effect such payment or discharge would not reasonably be expected to be adverse in any material respect to the Holders of the Notes.

Section 4.06 Stay, Extension and Usury Laws.

The Issuer and each of the Guarantors covenant (to the extent that they may lawfully do so) that they shall not at any time insist upon, plead, or in any manner whatsoever claim or take the benefit or advantage of, any stay, extension or usury law wherever enacted, now or at any time hereafter in force, that may affect the covenants or the performance of this Indenture; and the Issuer and each of the Guarantors (to the extent that they may lawfully do so) hereby expressly waive all benefit or advantage of any such law, and covenant that they shall not, by resort to any such law, hinder, delay or impede the execution

of any power herein granted to the Trustee, but shall suffer and permit the execution of every such power as though no such law has been enacted.

Section 4.07 Limitation on Restricted Payments.

(a) The Issuer shall not, and shall not permit any of its Restricted Subsidiaries to, directly or indirectly:

(I) declare or pay any dividend or make any payment or distribution on account of the Issuer’s or any of its Restricted Subsidiaries’ Equity Interests, including any dividend or distribution payable in connection with any merger or consolidation other than:

(A) dividends, payments or distributions by the Issuer payable solely in Equity Interests (other than Disqualified Stock) of the Issuer; or

(B) dividends, payments or distributions by a Restricted Subsidiary so long as, in the case of any dividend, payment or distribution payable on or in respect of any class or series of securities issued by a Restricted Subsidiary that is not a Wholly-Owned Subsidiary, the Issuer or a Restricted Subsidiary receives at least its pro rata share of such dividend, payment or distribution in accordance with its Equity Interests in such class or series of securities;

(II) purchase, redeem, defease or otherwise acquire or retire for value any Equity Interests of the Issuer or any direct or indirect parent of the Issuer, including in connection with any merger or consolidation;

(III) make any principal payment on, or redeem, repurchase, defease or otherwise acquire or retire for value or give any irrevocable notice of redemption with respect thereto, in each case, prior to any scheduled repayment, sinking fund payment or maturity, any Subordinated Indebtedness, other than:

(A) Indebtedness permitted under clauses (7) and (8) of Section 4.09(b) hereof; or

(B) the purchase, repurchase or other acquisition of Subordinated Indebtedness purchased in anticipation of satisfying a sinking fund obligation, principal installment or final maturity, in each case due within one year of the date of purchase, repurchase or acquisition; or

(C) the giving of an irrevocable notice of redemption with respect to the transactions described in clauses (2) and (3) of Section 4.07(b); or

(IV) make any Restricted Investment (all such payments and other actions set forth in clauses (I) through (IV) above being collectively referred to as “Restricted Payments”), unless, at the time of such Restricted Payment:

(1) no Default shall have occurred and be continuing or would occur as a consequence thereof;

(2) immediately after giving effect to such transaction on a pro forma basis, the Issuer could incur $1.00 of additional Indebtedness under Section 4.09(a) hereof; and

(3) such Restricted Payment, together with the aggregate amount of all other Restricted Payments made by the Issuer and its Restricted Subsidiaries after the Issue Date (including Restricted Payments permitted by clauses (1), (6), (8), (9), (10) and (11) of Section 4.07(b) hereof, but excluding all other Restricted Payments permitted by Section 4.07(b) hereof), is less than the sum of (without duplication):

(a) 50% of the Consolidated Net Income of the Issuer for the period (taken as one accounting period) beginning with the fiscal quarter of the Issuer commencing June 26, 2011 to the end of the Issuer’s most recently ended fiscal quarter for which internal financial statements are available at the time of such Restricted Payment, or, in the case such Consolidated Net Income for such period is a deficit, minus 100% of such deficit; plus

(b) 100% of the aggregate net cash proceeds and the fair market value of marketable securities or other property received by the Issuer since immediately after the Issue Date (other than net cash proceeds to the extent such net cash proceeds have been used to incur Indebtedness, Disqualified Stock or Preferred Stock pursuant to clause 12(a) of Section 4.09(b) from the issue or sale of:

(i) (A) Equity Interests of the Issuer, including Treasury Capital Stock (as defined below), but excluding cash proceeds and the fair market value of marketable securities or other property received from the sale of:

(x) Equity Interests to members of management, directors or consultants of the Issuer, any direct or indirect parent company of the Issuer and the Issuer’s Subsidiaries after the Issue Date to the extent such amounts have been applied to Restricted Payments made in accordance with clause (4) of Section 4.07(b) hereof; and

(y) Designated Preferred Stock; and

(B) to the extent such net cash proceeds are actually contributed to the Issuer, Equity Interests of the Issuer’s direct or indirect parent companies (excluding contributions of the proceeds from the sale of Designated Preferred Stock of such companies or contributions to the extent such amounts have been applied to Restricted Payments made in accordance with clause (4) of Section 4.07(b) hereof); or

(ii) debt securities of the Issuer that have been converted into or exchanged for such Equity Interests of the Issuer or its direct or indirect parent companies;

provided, however, that this clause (b) shall not include the proceeds from (X) Equity Interests or convertible debt securities of the Issuer sold to a Restricted Subsidiary, as the case may be, (Y) Disqualified Stock or debt securities that have been converted into Disqualified Stock or (Z) Excluded Contributions; plus

(c) 100% of the aggregate amount of cash and the fair market value of marketable securities or other property contributed to the capital of the Issuer following the Issue Date (other than (i) net cash proceeds to the extent such net cash proceeds have been used to incur Indebtedness Disqualified Stock or Preferred Stock pursuant to Section 4.09(b)(12), (ii) by a Restricted Subsidiary and (iii) from any Excluded Contribution); plus

(d) 100% of the aggregate amount received in cash and the fair market value of marketable securities or other property received by means of:

(i) the sale or other disposition (other than to the Issuer or a Restricted Subsidiary) of Restricted Investments made by the Issuer or its Restricted Subsidiaries and repurchases and redemptions of such Restricted Investments from the Issuer or its Restricted Subsidiaries and repayments of loans or advances, and releases of guarantees, which constitute Restricted Investments by the Issuer or its Restricted Subsidiaries, in each case after the Issue Date; or

(ii) the sale (other than to the Issuer or a Restricted Subsidiary) of the stock of an Unrestricted Subsidiary or a distribution from an Unrestricted Subsidiary (other than in each case to the extent the Investment in such Unrestricted Subsidiary constituted a Permitted Investment) or a dividend from an Unrestricted Subsidiary after the Issue Date; plus

(e) in the case of the redesignation of an Unrestricted Subsidiary as a Restricted Subsidiary after the Issue Date, the fair market value of the Investment in such Unrestricted Subsidiary at the time of the redesignation of such Unrestricted Subsidiary as a Restricted Subsidiary, other than an Unrestricted Subsidiary to the extent the Investment in such Unrestricted Subsidiary constituted a Permitted Investment.

(b) The foregoing provisions shall not prohibit:

(1) the payment of any dividend or distribution or the consummation of any irrevocable redemption within 60 days after the date of declaration thereof or the giving of the irrevocable redemption notice, as applicable, if at the date of declaration or notice such payment would have complied with the provisions of this Indenture;

(2) the redemption, repurchase, defeasance, retirement or other acquisition of any Equity Interests of the Issuer or of a direct or indirect parent company (“Treasury Capital Stock”) or Subordinated Indebtedness of the Issuer or a Guarantor in exchange for, or out of the proceeds of the substantially concurrent sale (other than to a Restricted Subsidiary) of, Equity Interests of the Issuer or of a direct or indirect parent company (in each case, other than any Disqualified Stock); provided that the amount of any proceeds that are utilized for any such redemption, repurchase, retirement or other acquisition shall be excluded from clauses (b) and (c) of the preceding paragraph;

(3) the redemption, repurchase, retirement, defeasance or other acquisition of Subordinated Indebtedness of the Issuer or a Guarantor made by exchange for, or out of the proceeds of, the substantially concurrent sale of, new Indebtedness of the Issuer or a Guarantor, as the case may be, which is incurred in compliance with Section 4.09 hereof so long as:

(a) the principal amount (or accreted value, if applicable) of such new Indebtedness does not exceed the principal amount of (or accreted value, if applicable), plus any accrued and unpaid interest on, the Subordinated Indebtedness being so redeemed, repurchased, acquired or retired for value, plus the amount of any premium paid (including tender premiums), defeasance costs and any reasonable fees and expenses incurred in connection with such redemption, repurchase, retirement, defeasance or other acquisition and the issuance of such new Indebtedness;

(b) such new Indebtedness is subordinated to the Notes or the applicable Guarantee at least to the same extent as such Subordinated Indebtedness so purchased, exchanged, redeemed, repurchased, acquired or retired for value;

(c) such new Indebtedness has a final scheduled maturity date equal to or later than the earlier of (x) the final scheduled maturity date of the Subordinated Indebtedness being so redeemed, repurchased, defeased, acquired or retired and (y) 60 days after the maturity date of the Notes; and

(d) such new Indebtedness has a Weighted Average Life to Maturity equal to or greater than the remaining Weighted Average Life to Maturity of the Subordinated Indebtedness being so redeemed, repurchased, defeased, acquired or retired;

(4) a Restricted Payment to pay for the repurchase, retirement or other acquisition of Equity Interests of the Issuer or any of its direct and indirect parent companies held by any future, present or former employee, director or consultant of the Issuer, any of its Subsidiaries or any of its direct or indirect parent companies (or any spouses, successors, executors, administrators, heirs or legatees of the foregoing) pursuant to any management equity plan or stock option plan or any other management or employee benefit plan or agreement or arrangement; provided, however, that the aggregate Restricted Payments made under this clause (4) do not exceed in any calendar year $5 million (with unused amounts in any calendar year being carried over to succeeding calendar years subject to a maximum (without giving effect to the following proviso) of $10 million in any calendar year); provided, further, that such amount in any calendar year may be increased by an amount not to exceed:

(a) the cash proceeds from the sale of Equity Interests (other than Disqualified Stock) of the Issuer or any of its direct and indirect parent companies to members of management, directors or consultants of the Issuer or any of its Subsidiaries or any of its direct and indirect parent companies that occurs after the Issue Date, to the extent the cash proceeds from the sale of such Equity Interests have not otherwise been applied to the payment of Restricted Payments by virtue of clause (3) of Section 4.07(a) hereof ; plus

(b) the cash proceeds of key man life insurance policies received by the Issuer or its Restricted Subsidiaries after the Issue Date; less

(c) the amount of any Restricted Payments made in any prior calendar year pursuant to clauses (a) and (b) of this clause (4);

provided that the cancellation of indebtedness owing to the Issuer or any of its Restricted Subsidiaries from employees, officers, directors or consultants of the Issuer, any of its Subsidiaries or direct or indirect parent companies in connection with a repurchase of Equity Interests of the Issuer or any direct or indirect

parent company will not be deemed to constitute a Restricted Payment for purposes of this Section 4.07 or any other provisions of the Indenture;

(5) [Reserved];

(6) (a) the declaration and payment of dividends and distributions to holders of any class or series of Designated Preferred Stock (other than Disqualified Stock) issued by the Issuer after the Issue Date; provided that the amount of dividends paid pursuant to this clause (a) shall not exceed the aggregate amount of cash actually received by the Issuer from the sale of such Designated Preferred stock; or

(b) the declaration and payment of dividends and distributions to a direct or indirect parent company of the Issuer, the proceeds of which will be used to fund the payment of dividends to holders of any class or series of Designated Preferred Stock (other than Disqualified Stock) of such parent company issued after the Issue Date; provided that the amount of dividends paid pursuant to this clause (b) shall not exceed the aggregate amount of cash actually contributed to the Issuer from the sale of such Designated Preferred Stock; or

(c) the declaration and payment of dividends and distributions on Treasury Capital Stock that is Preferred Stock in excess of the dividends declarable and payable thereon pursuant to 4.07(b)(2);

provided, however, in the case of each of (a), (b) and (c) of this Section 4.07(b)(6), that for the most recently ended four full fiscal quarters for which internal financial statements are available immediately preceding the date of issuance of such Designated Preferred Stock, after giving effect to such issuance or declaration on a pro forma basis, the Issuer and its Restricted Subsidiaries on a consolidated basis would have had a Fixed Charge Coverage Ratio of at least 2.00 to 1.00;

(7) repurchases of Equity Interests of the Issuer or any of its direct or indirect parents deemed to occur upon exercise or vesting of stock options, warrants or similar rights if such Equity Interests represent all or a portion of the exercise price of such options or warrants or are surrendered in connection with satisfying any federal or state income tax obligation incurred in connection with such exercise or vesting;

(8) the repurchase, redemption or other acquisition for value of Equity Interests of the Issuer or any direct or indirect parent representing fractional shares of such Equity Interests of the Issuer or any of its direct or indirect parents in connection with a stock dividend, split or combination or any merger, consolidation, amalgamation or other combination involving the Issuer or any direct or indirect parent;

(9) the redemption, repurchase, retirement or other acquisition, in each case for nominal value per right, of any rights granted to all holders of Equity Interests of the Issuer or any direct or indirect parent pursuant to any stockholders’ rights plan adopted for the purpose of protecting stockholders from unfair takeover tactics, provided that any such redemption, repurchase, retirement or other acquisition of such rights shall not be for the purpose of evading the limitations described under this Section 4.07;

(10) payments or distributions to dissenting stockholders pursuant to applicable law in connection with a merger, consolidation or transfer of all or substantially all of the Issuer’s property or assets that complies with this Indenture, provided that as a result of such merger, consolidation

or transfer of all or substantially all of the Issuer’s property or assets, the Issuer shall have made a Change of Control Offer or Asset Sale Offer and all Notes tendered by Holders in connection therewith shall have been repurchased, redeemed or acquired for value;

(11) the declaration and payment of dividends on the Issuer’s common stock (or the payment of dividends to any direct or indirect parent to fund a payment of dividends on such entity’s common stock) following the first public offering of the Issuer’s common stock or the common stock of any of its direct or indirect parent companies after the Issue Date, of up to 6% per annum of the net proceeds received by or contributed to the Issuer in or from any such public offering, other than public offerings with respect to the Issuer’s common stock registered on Form S-4 or Form S-8;

(12) the declaration and payment of dividends by the Issuer to, or the making of loans to, its direct or indirect parent company, in amounts required for the Issuer’s direct or indirect parent companies to pay:

(a) franchise taxes and other fees, taxes and expenses required to maintain their corporate existence;

(b) Permitted Tax Distributions;

(c) customary salary, bonus and other benefits payable to directors, officers and employees of any direct or indirect parent company of the Issuer to the extent such salaries, bonuses and other benefits are attributable to the ownership or operation of the Issuer and the Restricted Subsidiaries and reimbursement of reasonable out-of-pocket costs of such directors in the ordinary course of business;

(d) general corporate overhead expenses of any direct or indirect parent company of the Issuer (including indemnification claims made by directors or officers of any direct or indirect parent company of the Issuer) to the extent such expenses are attributable to the ownership or operation of the Issuer and the Restricted Subsidiaries;

(e) reasonable fees and expenses incurred in connection with any debt or equity offering (whether or not successful) by such direct or indirect parent company of the Issuer; and

(f) taxes with respect to income of any direct or indirect parent company of the Issuer derived from funding made available to the Issuer or its Restricted Subsidiaries by such direct or indirect parent company;

(13) Restricted Payments in the amount of Excluded Contributions;

(14) (a) the payment of annual fees to any Sponsor or any of its Affiliates pursuant to the Management Agreement in an aggregate amount per annum not to exceed $500,000, (b) dividends or distributions pursuant to the Class C Agreement in an aggregate amount per annum not to exceed $500,000; (c) (i) payments of indemnification and third-party expense reimbursements under the Expense Reimbursement Agreement and Management Agreement and (ii) other payments under the Expense Reimbursement Agreement or other fees under the Management Agreement and the Class C Agreement in an aggregate amount not to exceed $15 million, provided that payments pursuant to this clause (ii) in any calendar year do not exceed $5 million, in

each case as such agreements are in effect on the Issue Date or as such agreements may be amended accordance with Section 4.11;

(15) other Restricted Payments in an aggregate amount taken together with all other Restricted Payments made pursuant to this clause (15) not to exceed $17.5 million;

(16) the repurchase, redemption retirement, defeasance or other acquisition of any Preferred Stock or Subordinated Indebtedness required in accordance with provisions applicable thereto similar to those described under Sections 4.10 and 4.14; provided that all Notes tendered by Holders in connection with a Change of Control Offer or Asset Sale Offer, as applicable, have been repurchased, redeemed or acquired for value; and

(17) any Restricted Payment used to fund the Transactions and the fees and expenses related thereto or used to fund amounts owed to Affiliates, in each case as described in the Offering Memorandum and to the extent permitted under Section 4.11,

provided, however, that at the time of, and after giving effect to, any Restricted Payment permitted under clause (15) and (16) of this Section 4.07(b), no Default shall have occurred and be continuing or would occur as a consequence thereof.

(c) As of the Issue Date, all of the Issuer’s Subsidiaries shall be Restricted Subsidiaries. The Issuer shall not permit any Unrestricted Subsidiary to become a Restricted Subsidiary except pursuant to the last sentence of the definition of “Unrestricted Subsidiary.” For purposes of designating any Restricted Subsidiary as an Unrestricted Subsidiary, all outstanding Investments by the Issuer and its Restricted Subsidiaries (except to the extent repaid) in the Subsidiary so designated shall be deemed to be Restricted Payments in an amount determined as set forth in the last sentence of the definition of “Investment.” Such designation shall be permitted only if a Restricted Payment and/or Permitted Investment in such amount would be permitted at such time pursuant to this Section 4.07(c) and/or the definition of “Permitted Investments,” and if such Subsidiary otherwise meets the definition of an Unrestricted Subsidiary. Unrestricted Subsidiaries shall not be subject to any of the restrictive covenants set forth in this Indenture.

(d) In the event that a Restricted Payment or Permitted Investment meets the criteria of more than one of the types of Restricted Payments described in the above clauses (including, without limitation Section 4.07(a)) or Permitted Investment described in the definition thereof, the Issuer, in its sole discretion, may classify or reclassify, such Restricted Payment or Permitted Investment in any manner that complies with this Section 4.07 and such Restricted Payment or Permitted Investment shall be treated as having been made pursuant to only one of such clauses of this Section 4.07 or of the definition of “Permitted Investment.”

Section 4.08 Dividend and Other Payment Restrictions Affecting Restricted Subsidiaries.

(a) The Issuer shall not, and shall not permit any of its Restricted Subsidiaries to, directly or indirectly, create or otherwise cause or suffer to exist or become effective any consensual encumbrance or consensual restriction on the ability of any such Restricted Subsidiary to:

(1) (A) pay dividends or make any other distributions to the Issuer or any of the Restricted Subsidiaries on its Capital Stock or with respect to any other interest or participation in, or measured by, its profits, or

(B) pay any Indebtedness owed to the Issuer or any of the Restricted Subsidiaries;

(2) make loans or advances to the Issuer or any of the Restricted Subsidiaries; or

(3) sell, lease or transfer any of its properties or assets to the Issuer or any of the Restricted Subsidiaries.

(b) the foregoing shall not apply (in each case) to such encumbrances or restrictions existing under or by reason of:

(1) contractual encumbrances or restrictions in effect on the Issue Date, including pursuant to the Senior Secured Credit Facility and the related documentation;

(2) this Indenture and the Notes;

(3) purchase money obligations and capital lease obligations for property acquired in the ordinary course of business that impose restrictions of the nature discussed in clause (3) of this Section 4.08(a) on the property so acquired;

(4) applicable law or any applicable rule, regulation or order;

(5) any agreement or other instrument of a Person acquired by the Issuer or any of its Restricted Subsidiaries in existence at the time of such acquisition (but not created in contemplation thereof), which encumbrance or restriction is not applicable to any Person, or the properties or assets of any Person, other than the Person and its Subsidiaries, or the property or assets of the Person and its Subsidiaries, so acquired;

(6) contracts for the sale of assets, including customary restrictions with respect to a Subsidiary of the Issuer pursuant to an agreement that has been entered into for the sale or disposition of all or substantially all of the Capital Stock or assets of such Subsidiary, that impose restrictions on the assets to be sold;

(7) Secured Indebtedness otherwise permitted to be incurred pursuant to Section 4.09 hereof and Section 4.12 hereof that limit the right of the debtor to dispose of the assets securing such Indebtedness or place any restriction on the Issuer’s or its Restricted Subsidiaries’ use of the assets securing such Secured Indebtedness;

(8) restrictions on cash or other deposits or net worth imposed by customers under contracts entered into in the ordinary course of business;

(9) other Indebtedness, Disqualified Stock or Preferred Stock of Foreign Subsidiaries permitted to be incurred subsequent to the Issue Date pursuant to the provisions of Section 4.09 hereof that impose restrictions solely on Foreign Subsidiaries party thereto;

(10) customary provisions in joint venture agreements and other similar agreements relating solely to such joint venture;

(11) customary provisions contained in leases or licenses of intellectual property and other agreements, in each case, entered into in the ordinary course of business;

(12) contractual requirements of a Receivables Subsidiary in connection with a Qualified Receivables Financing, provided that such restrictions apply only to such Receivables Subsidiary or the receivables that are subject to the Qualified Receivables Financing;

(13) protective Liens filed in connection with a sale and leaseback transaction permitted under this Indenture;

(14) any other agreement governing Indebtedness entered into after the Issue Date that contains encumbrances and restrictions that are not materially more restrictive with respect to the Issuer or any Restricted Subsidiary than those in effect on the Issue Date pursuant to agreements in effect on the Issue Date; and

(15) any encumbrances or restrictions of the type referred to in clauses (1), (2) and (3) of this Section 4.08(a) imposed by any amendments, modifications, restatements, renewals, increases, supplements, refundings, replacements or refinancings of the contracts, instruments or obligations referred to in clauses (1) through (14) of this Section 4.08(b); provided that such amendments, modifications, restatements, renewals, increases, supplements, refundings, replacements or refinancings are, in the good faith judgment of the Issuer, not materially more restrictive with respect to such encumbrance and other restrictions taken as a whole than those prior to such amendment, modification, restatement, renewal, increase, supplement, refunding, replacement or refinancing.

Section 4.09 Limitation on Incurrence of Indebtedness and Issuance of Disqualified Stock and Preferred Stock.

(a) The Issuer shall not, and shall not permit any of the Restricted Subsidiaries to, directly or indirectly, create, incur, issue, assume, guarantee or otherwise become directly or indirectly liable, contingently or otherwise (collectively, “incur” and collectively, an “incurrence”) with respect to any Indebtedness (including Acquired Indebtedness) and the Issuer shall not issue any shares of Disqualified Stock and shall not permit any Restricted Subsidiary to issue any shares of Disqualified Stock or Preferred Stock; provided, however, that the Issuer may incur Indebtedness (including Acquired Indebtedness) or issue shares of Disqualified Stock, and any Restricted Subsidiary may incur Indebtedness (including Acquired Indebtedness), issue shares of Disqualified Stock and issue shares of Preferred Stock, if the Fixed Charge Coverage Ratio on a consolidated basis for the Issuer and its Restricted Subsidiaries’ most recently ended four fiscal quarters for which internal financial statements are available immediately preceding the date on which such additional Indebtedness is incurred or such Disqualified Stock or Preferred Stock is issued would have been at least 2.00 to 1.00, determined on a pro forma basis (including a pro forma application of the net proceeds therefrom), as if the additional Indebtedness had been incurred, or the Disqualified Stock or Preferred Stock had been issued, as the case may be, and the application of proceeds therefrom had occurred at the beginning of such four-quarter period; provided that the amount of Indebtedness (including Acquired Indebtedness), Disqualified Stock and Preferred Stock that may be incurred or issued, as applicable, pursuant to the foregoing by Restricted Subsidiaries that are not Guarantors shall not exceed $15 million at any one time outstanding.

(b) The provisions of Section 4.09(a) hereof shall not apply to:

(1) the incurrence of Indebtedness under the Credit Facilities by the Issuer or any of its Restricted Subsidiaries and the issuance and creation of letters of credit and bankers’ acceptances thereunder (with letters of credit and bankers’ acceptances being deemed to have a principal amount equal to the face amount thereof), up to an aggregate principal amount of $475 million outstanding at any one time, less (i) the amount of Indebtedness then outstanding under

clause (19) and (ii) any permanent payments (with respect to revolving borrowings and letters of credit, only to the extent revolving commitments are correspondingly reduced) actually made by the borrower thereunder following the Issue Date in respect of Indebtedness thereunder with Net Proceeds from an Asset Sale;

(2) the incurrence by the Issuer and any Guarantor of Indebtedness represented by the Notes (including any Guarantee) other than any Additional Notes;

(3) Indebtedness of the Issuer and its Restricted Subsidiaries in existence on the Issue Date (other than Indebtedness described in clauses (1) and (2) of this Section 4.09(b));

(4) Indebtedness (including Capitalized Lease Obligations), Disqualified Stock and Preferred Stock incurred by the Issuer or any of its Restricted Subsidiaries to finance the purchase, lease, construction, installation, repair or improvement of property (real or personal) or equipment (other than software) that is used or useful in a Similar Business, whether through the direct purchase of assets or the Capital Stock of any Person owning such assets, in an aggregate principal amount, not to exceed at any time outstanding the greater of (x) $15 million and (y) 1.5% of Total Assets;

(5) Indebtedness incurred by the Issuer or any of its Restricted Subsidiaries constituting reimbursement obligations with respect to letters of credit issued in the ordinary course of business, including letters of credit in respect of workers’ compensation claims, unemployment insurance and other types of social security or property, casualty or liability insurance or self-insurance, or other Indebtedness with respect to reimbursement type obligations regarding workers’ compensation claims; provided, however, that, upon the drawing of such letters of credit, such obligations are reimbursed within 30 days following such drawing;

(6) Indebtedness arising from agreements of the Issuer or its Restricted Subsidiaries providing for indemnification, adjustment of purchase price or similar obligations, in each case, incurred or assumed in connection with the disposition of any business, assets or a Subsidiary, other than guarantees of Indebtedness incurred by any Person acquiring all or any portion of such business, assets or a Subsidiary for the purpose of financing such acquisition; provided, however, that (a) such Indebtedness is not reflected on the balance sheet of the Issuer, or any of its Restricted Subsidiaries (contingent obligations referred to in a footnote to financial statements and not otherwise reflected on the balance sheet will not be deemed to be reflected on such balance sheet for purposes of this clause (6)(a)) and (b) the maximum assumable liability in respect of all such Indebtedness shall at no time exceed the gross proceeds including non cash proceeds (the fair market value of such non cash proceeds being measured at the time received and without giving effect to any subsequent changes in value) actually received by the Issuer and its Restricted Subsidiaries in connection with such disposition;

(7) Indebtedness of the Issuer to a Restricted Subsidiary; provided that any such Indebtedness owing to a Restricted Subsidiary that is not a Guarantor is expressly subordinated in right of payment to the Notes; provided, further, that any subsequent issuance or transfer of any Capital Stock or any other event which results in any such other Restricted Subsidiary ceasing to be a Restricted Subsidiary or any other subsequent transfer of any such Indebtedness (except to the Issuer or another Restricted Subsidiary or any pledge of such Indebtedness constituting a Permitted Lien) shall be deemed, in each case, to be an incurrence of such Indebtedness not permitted by this clause (7);

(8) Indebtedness of a Restricted Subsidiary to the Issuer or another Restricted Subsidiary; provided that if a Guarantor incurs such Indebtedness to a Restricted Subsidiary that is not a Guarantor, such Indebtedness is expressly subordinated in right of payment to the Guarantee of the Notes of such Guarantor; provided further that any subsequent issuance or transfer of any Capital Stock or any other event which results in any such other Restricted Subsidiary ceasing to be a Restricted Subsidiary or any subsequent transfer of any such Indebtedness (except to the Issuer or another Restricted Subsidiary or any pledge of such Indebtedness constituting a Permitted Lien) shall be deemed, in each case, to be an incurrence of such Indebtedness not permitted by this clause (8);

(9) shares of Preferred Stock of a Restricted Subsidiary issued to the Issuer or another Restricted Subsidiary; provided that any subsequent issuance or transfer of any Capital Stock or any other event which results in any such other Restricted Subsidiary ceasing to be a Restricted Subsidiary or any other subsequent transfer of any such shares of Preferred Stock (except to the Issuer or another of its Restricted Subsidiaries) shall be deemed in each case to be an issuance of such shares of Preferred Stock not permitted by this clause (9);

(10) Hedging Obligations (excluding Hedging Obligations entered into for speculative purposes) for the purpose of limiting interest rate risk exchange rate risk or commodity pricing risk;

(11) obligations in respect of performance, bid, appeal and surety bonds and completion guarantees and other obligations of a like nature provided by the Issuer or any of its Restricted Subsidiaries in the ordinary course of business;

(12) (a) Indebtedness or Disqualified Stock of the Issuer and Indebtedness, Disqualified Stock or Preferred Stock of the Issuer or any Restricted Subsidiary equal to 100% of the net cash proceeds received by the Issuer since immediately after the Issue Date from the issue or sale of Equity Interests of the Issuer or cash contributed to the capital of the Issuer (in each case, other than Excluded Contributions or proceeds of Disqualified Stock or Designated Preferred Stock or sales of Equity Interests to the Issuer or any of its Subsidiaries or amounts applied to make a Restricted Payment in accordance with clause (2) of Section 4.07(a) as determined in accordance with clauses 3(b) and 3(c) of Section 4.07(b) to the extent such net cash proceeds or cash have not been applied pursuant to such clauses to make Restricted Payments or to make other Investments, payments or exchanges pursuant to Section 4.07(b) or to make Permitted Investments (other than Permitted Investments specified in clauses (1) and (3) of the definition thereof) (together with amounts applied under clause (13) to refinance Indebtedness or Disqualified Stock initially incurred in reliance on this clause (12)(a)) and (b) Indebtedness or Disqualified Stock of the Issuer and Indebtedness, Disqualified Stock or Preferred Stock of the Issuer or any Restricted Subsidiary not otherwise permitted hereunder in an aggregate principal amount or liquidation preference which, when aggregated with the principal amount and liquidation preference of all other Indebtedness, Disqualified Stock and Preferred Stock then outstanding and incurred pursuant to this clause (12)(b), does not at any one time outstanding exceed $20 million;

(13) the incurrence by the Issuer or any Restricted Subsidiary of the Issuer of Indebtedness, Disqualified Stock or Preferred Stock which serves to refund, replace or refinance any Indebtedness, Disqualified Stock or Preferred Stock incurred as permitted under Section 4.09(a) hereof and clauses (2) and (3) above and this clause (13) and clause (14) below of this Section 4.09(b) or any Indebtedness, Disqualified Stock or Preferred Stock issued to so refund, replace or refinance such Indebtedness, Disqualified Stock or Preferred Stock including additional Indebtedness,

Disqualified Stock or Preferred Stock incurred to pay premiums (including tender premiums), defeasance costs and fees in connection therewith (the “Refinancing Indebtedness”) prior to its respective maturity; provided, however, that such Refinancing Indebtedness:

(A) has a Weighted Average Life to Maturity at the time such Refinancing Indebtedness is incurred which is not less than the remaining Weighted Average Life to Maturity of the Indebtedness, Disqualified Stock or Preferred Stock being refunded or refinanced,

(B) to the extent such Refinancing Indebtedness refinances (i) Indebtedness subordinated or pari passu to the Notes or any Guarantee thereof, such Refinancing Indebtedness is subordinated or pari passu to the Notes or the Guarantee at least to the same extent as the Indebtedness being refinanced or refunded, or (ii) Disqualified Stock or Preferred Stock, such Refinancing Indebtedness must be Disqualified Stock or Preferred Stock, respectively, and

(i) Indebtedness, Disqualified Stock or Preferred Stock of a Subsidiary of the Issuer that is not a Guarantor that refinances Indebtedness, Disqualified Stock or Preferred Stock of the Issuer;

(ii) Indebtedness, Disqualified Stock or Preferred Stock of a Subsidiary of the Issuer, that is not a Guarantor that refinances Indebtedness, Disqualified Stock or Preferred Stock of a Guarantor; or

(iii) Indebtedness, Disqualified Stock or Preferred Stock of the Issuer or a Restricted Subsidiary that refinances Indebtedness, Disqualified Stock or Preferred Stock of an Unrestricted Subsidiary;

(14) Indebtedness, Disqualified Stock or Preferred Stock of Persons that are acquired (whether by asset acquisition or otherwise) by the Issuer or any Guarantor or merged into the Issuer or a Guarantor in accordance with the terms of the Indenture; provided that such Indebtedness, Disqualified Stock or Preferred Stock is not incurred in connection with or in contemplation of, or to provide all or any portion of the funds or credit support utilized to consummate, such acquisition or merger and, provided further that, after giving pro forma effect to such acquisition or merger, either

(a) the Issuer would be permitted to incur at least $1.00 of additional Indebtedness pursuant to the Fixed Charge Coverage Ratio test set forth in the first sentence of this Section 4.09, or

(b) the Fixed Charge Coverage Ratio of the Issuer and the Restricted Subsidiaries is greater than immediately prior to such acquisition or merger;

(15) Indebtedness arising from the honoring by a bank or other financial institution of a check, draft or similar instrument drawn against insufficient funds in the ordinary course of business, provided that such Indebtedness is extinguished within five Business Days of its incurrence;

(16) (a) any guarantee by the Issuer or a Restricted Subsidiary of Indebtedness or other obligations of any Restricted Subsidiary so long as the incurrence of such Indebtedness incurred by such Restricted Subsidiary is permitted under the terms of this Indenture; or

(b) any guarantee by a Restricted Subsidiary of Indebtedness of the Issuer; provided that such guarantee is incurred in accordance with Section 4.15 hereof;

(17) Indebtedness of Foreign Subsidiaries of the Issuer not to exceed at any one time outstanding and together with any other Indebtedness incurred under this clause (17) the greater of (x) $25 million and (y) 8% of the Total Assets of the Foreign Subsidiaries of the Issuer;

(18) Indebtedness of the Issuer or any of its Restricted Subsidiaries consisting of (i) the financing of insurance premiums or (ii) take-or-pay obligations contained in supply arrangements, in each case, incurred in the ordinary course of business;

(19) Indebtedness incurred by a Receivables Subsidiary in a Qualified Receivables Financing that is not recourse to the Issuer or any Restricted Subsidiary other than a Receivables Subsidiary (except for Standard Securitization Undertakings);

(20) cash management obligations and Indebtedness in respect of netting services, employee credit card programs and similar arrangements in connection with cash management and deposit accounts;

(21) Indebtedness owed on a short-term basis of no longer than 30 days to banks and other financial institutions incurred in the ordinary course of business of the Issuer and its Restricted Subsidiaries with such banks or financial institutions that arises in connection with ordinary cash management activities of the Issuer and its Restricted Subsidiaries; and

(22) Indebtedness of the Issuer or any of its Restricted Subsidiaries supported by a letter of credit issued pursuant to the Credit Facilities, in a principal amount not in excess of the stated amount of such letter of credit.

(1) in the event that an item of Indebtedness, Disqualified Stock or Preferred Stock (or any portion thereof) meets the criteria of more than one of the categories of permitted Indebtedness, Disqualified Stock or Preferred Stock described in clauses (1) through (22) of Section 4.09(b) hereof or is entitled to be incurred pursuant to Section 4.09(a) hereof, the Issuer, in its sole discretion, shall classify or reclassify such item of Indebtedness, Disqualified Stock or Preferred Stock (or any portion thereof) and shall only be required to include the amount and type of such Indebtedness, Disqualified Stock or Preferred Stock in one of the above clauses; provided that all Indebtedness outstanding under the Credit Facilities on the Issue Date shall at all times be deemed to be outstanding in reliance on Section 4.09(b)(1) hereof; and

(2) at the time of incurrence, the Issuer shall be entitled to divide and classify an item of Indebtedness in more than one of the types of Indebtedness described in Sections 4.09(a) and 4.09(b) hereof.

(d) Accrual of interest, the accretion of accreted value, the amortization of original issue discount, and the payment of interest or dividends in the form of additional Indebtedness, Disqualified Stock or Preferred Stock, as applicable, the accretion of liquidation preference and increases in the

amount of Indebtedness outstanding solely as a result of fluctuations in the exchange rate of currencies will not be deemed to be an incurrence of Indebtedness, Disqualified Stock or Preferred Stock for purposes of this Section 4.09. Guarantees of, or obligations in respect of letters of credit relating to, Indebtedness that are otherwise included in the determination of a particular amount of Indebtedness shall not be included in the determination of such amount of Indebtedness, provided that the incurrence of the Indebtedness represented by such guarantee or letter of credit, as the case may be, was in compliance with this Section 4.09.

(e) For purposes of determining compliance with any U.S. dollar-denominated restriction on the incurrence of Indebtedness, the U.S. dollar-equivalent principal amount of Indebtedness denominated in a foreign currency shall be calculated based on the relevant currency exchange rate in effect on the date such Indebtedness was incurred, in the case of term debt, or first committed, in the case of revolving credit debt; provided that if such Indebtedness is incurred to refinance other Indebtedness denominated in a foreign currency, and such refinancing would cause the applicable U.S. dollar denominated restriction to be exceeded if calculated at the relevant currency exchange rate in effect on the date of such refinancing, such U.S. dollar-denominated restriction shall be deemed not to have been exceeded so long as the principal amount of such refinancing Indebtedness does not exceed the principal amount of such Indebtedness being refinanced plus the amount of any reasonable premium (including reasonable tender premiums), defeasance costs and any reasonable fees and expenses incurred in connection with the issuance of such new Indebtedness.

(f) The Issuer shall not, and shall not permit any Guarantor to, directly or indirectly, incur any Indebtedness (including Acquired Indebtedness) that is subordinated or junior in right of payment to any Indebtedness of the Issuer or such Guarantor, as the case may be, unless such Indebtedness is expressly subordinated in right of payment to the Notes or such Guarantor’s Guarantee substantially to the extent and in the same manner as such Indebtedness is subordinated to other Indebtedness of the Issuer or such Guarantor, as the case may be.

(g) For purposes of this Indenture, (1) unsecured Indebtedness is not deemed to be subordinated or junior to Secured Indebtedness merely because it is unsecured or (2) Indebtedness is not deemed to be subordinated or junior to any other Indebtedness merely because it has a junior priority with respect to the same collateral.

Section 4.10 Asset Sales.

(a) The Issuer shall not, and shall not permit any of the Restricted Subsidiaries to, cause, make or suffer to exist an Asset Sale, unless:

(1) the Issuer or such Restricted Subsidiary, as the case may be, receives consideration at the time of such Asset Sale at least equal to the fair market value of the assets or Equity Interests issued or sold or otherwise disposed of; and

(2) except in the case of a Permitted Asset Swap, at least 75% of the consideration therefor received by the Issuer or such Restricted Subsidiary, as the case may be, is in the form of (a) cash or Cash Equivalents (b) Replacement Assets or (c) any combination of the consideration specified in clauses (a) and (b); provided that the amount of:

(A) any liabilities (as shown on the Issuer’s or such Restricted Subsidiary’s most recent balance sheet or in the footnotes thereto, or if incurred or accrued subsequent to the date of such balance sheet, such liabilities that would have been shown on the Issuer or such Restricted Subsidiary’s balance sheet or in the footnotes thereto if such incurrence

or accrual had taken place on or prior to the date of such balance sheet, as determined in good faith by the Issuer) of the Issuer or such Restricted Subsidiary, other than liabilities that are by their terms subordinated to the Notes, that are assumed by the transferee of any such assets (or a third party on behalf of such transferee) and for which the Issuer and all of its Restricted Subsidiaries have been validly released by all creditors in writing,

(B) any securities, notes or other obligations received by the Issuer or such Restricted Subsidiary from such transferee that are converted by the Issuer or such Restricted Subsidiary into cash or Cash Equivalents (to the extent of the cash or Cash Equivalents received) within 180 days following the closing of such Asset Sale,

(C) any Designated Non-cash Consideration received by the Issuer or any of its Restricted Subsidiaries in such Asset Sale having an aggregate fair market value, taken together with all other Designated Non-cash Consideration received since the date of this Indenture pursuant to this clause (C) that is at that time outstanding, not to exceed the greater of (x) $25 million and (y) 2.0% of Total Assets at the time of the receipt of such Designated Non-cash Consideration (with the fair market value of each item of Designated Non-cash Consideration being measured at the time received and without giving effect to subsequent changes in value); and

(D) any securities publicly-traded on a national securities exchange;

shall be deemed to be cash or Cash Equivalents for purposes of this provision and for no other purpose.

(b) Within 365 days after the receipt of any Net Proceeds of any Asset Sale, the Issuer or such Restricted Subsidiary, at its option, may apply the Net Proceeds from such Asset Sale,

(1) to permanently reduce:

(A) Secured Indebtedness under one or more Credit Facilities or any other Secured Indebtedness to the extent such Lien is permitted by this Indenture; or

(B) Obligations under Pari Passu Indebtedness (and to correspondingly reduce commitments with respect thereto); provided that the Issuer shall equally and ratably (based on the aggregate principal amounts (or accreted value, as applicable )) reduce Obligations under the Notes as provided under Section 3.07 hereof, through open-market purchases (to the extent such purchases are at or above 100% of the principal amount thereof) or by making an offer (in accordance with the procedures set forth under Section 4.10(c) hereof) to all Holders to purchase their Notes at 100% of the principal amount thereof, plus the amount of accrued but unpaid interest, if any, on the amount of Notes that would otherwise be prepaid; or

(2) to make (a) an Investment in any one or more businesses; provided that such Investment in any business is in the form of the acquisition of Capital Stock and results in the Issuer or another of its Restricted Subsidiaries, as the case may be, owning an amount of the Capital Stock of such business such that it constitutes a Restricted Subsidiary, (b) capital expenditures or (c) acquisitions of other assets, in each of (a), (b) and (c), used or useful in a Similar Business or that replace the businesses, properties and/or assets that are the subject of such Asset Sale.

(c) Any Net Proceeds from the Asset Sale that are not invested or applied as provided and within the time period set forth in Section 4.10(b) shall be deemed to constitute “Excess Proceeds;” provided, however, that if during such 365-day period the Issuer or a Restricted Subsidiary enters into a definitive binding agreement committing it to apply such Net Proceeds in accordance with the requirements of clause (2) of Section 4.10(b) after such 365th day, such 365 day period will be extended with respect to the amount of Net Proceeds so committed until such Net Proceeds are required to be applied in accordance with such agreement (but such extension will in no event be for a period longer than 180 days or, if earlier, the date of termination of the agreement). When the aggregate amount of Excess Proceeds exceeds $15 million, the Issuer shall make an offer to all Holders, and, if required by the terms of any Pari Passu Indebtedness, to the holders of such Pari Passu Indebtedness (an “Asset Sale Offer”), to purchase the maximum aggregate principal amount (or accreted value, as applicable) of the Notes and such Pari Passu Indebtedness that is a minimum amount of $2,000 and in an integral multiple of $1,000 in excess thereof that may be purchased out of the Excess Proceeds at an offer price in cash in an amount equal to 100% of the principal amount thereof (or accreted value, as applicable), plus accrued and unpaid interest, if any, to the date fixed for the closing of such offer, in accordance with the procedures set forth in this Indenture. The Issuer will commence an Asset Sale Offer with respect to Excess Proceeds within ten Business Days after the date that Excess Proceeds exceed $15 million by mailing the notice required pursuant to the terms of this Indenture, with a copy to the Trustee.

To the extent that the aggregate principal amount (or accreted value, as applicable) of Notes and such Pari Passu Indebtedness tendered pursuant to an Asset Sale Offer is less than the Excess Proceeds, the Issuer may use any remaining Excess Proceeds for general corporate purposes, subject to the other covenants contained in this Indenture and they will no longer constitute Excess Proceeds. If the aggregate principal amount (or accreted value, as applicable) of Notes or the Pari Passu Indebtedness surrendered by such holders thereof exceeds the amount of Excess Proceeds, the Trustee shall select the Notes and the Issuer or agent for such Pari Passu Indebtedness shall select the Pari Passu Indebtedness to be purchased on a pro rata basis (or, in the case of Notes in global form, the Trustee will select Notes for redemption based on DTC’s method that most nearly approximates a pro rata selection or by such other method that the Trustee shall deem fair and appropriate) based on the accreted value or principal amount of the Notes or such Pari Passu Indebtedness tendered. Upon completion of any such Asset Sale Offer, the amount of Excess Proceeds shall be reset at zero.

(d) Pending the final application of any Net Proceeds pursuant to this Section 4.10, the holder of such Net Proceeds may apply such Net Proceeds temporarily to reduce Indebtedness outstanding under a revolving credit facility or otherwise invest such Net Proceeds in any manner not prohibited by this Indenture.

(e) The Issuer shall comply with the applicable requirements of Rule 14e-1 under the Exchange Act and any other securities laws and regulations thereunder to the extent such laws or regulations are applicable in connection with the repurchase of the Notes pursuant to an Asset Sale Offer. To the extent that the applicable provisions of any securities laws or regulations conflict with the provisions of this Indenture, the Issuer shall comply with the applicable securities laws and regulations and shall not be deemed to have breached its obligations described in this Indenture by virtue thereof.

Section 4.11 Transactions with Affiliates.

(a) The Issuer shall not, and shall not permit any of its Restricted Subsidiaries to, make any payment to, or sell, lease, transfer or otherwise dispose of any of its properties or assets to, or purchase any property or assets from, or enter into or make or amend any transaction, contract, agreement, understanding, loan, advance or guarantee with, or for the benefit of, any Affiliate of the Issuer

(each of the foregoing, an “Affiliate Transaction”) involving aggregate payments or consideration in excess of $5.0 million unless:

(1) such Affiliate Transaction is on terms that are not materially less favorable to the Issuer or its relevant Restricted Subsidiary than those that would have been obtained in a comparable transaction by the Issuer or such Restricted Subsidiary with an unrelated Person on an arm’s-length basis;

(2) the Issuer delivers to the Trustee with respect to any Affiliate Transaction or series of related Affiliate Transactions involving aggregate payments or consideration in excess of $15 million, a resolution adopted by the majority of the board of directors or Equivalent Managing Body of the Issuer approving such Affiliate Transaction and set forth in an Officer’s Certificate certifying that such Affiliate Transaction complies with clause (1) of this Section 4.11(a); and

(3) the Issuer delivers to the Trustee with respect to any Affiliate Transaction or series of related Affiliate Transactions involving aggregate payments or consideration in excess of $25 million, a copy of a written opinion to the board of directors or Equivalent Managing Body of the Issuer from an Independent Financial Advisor to the effect that such Affiliate Transaction is fair, from a financial point of view, to the Issuer and its Restricted Subsidiaries or is not less favorable to the Issuer and its Restricted Subsidiaries than could reasonably be expected to be obtained at the time in an arms length transaction with a Person who was not an Affiliate;

(b) The foregoing provisions of Section 4.11(a) hereof will not apply to the following:

(1) transactions between or among the Issuer or any of its Restricted Subsidiaries;

(2) Restricted Payments permitted by Section 4.07 hereof and the Investments constituting “Permitted Investments”;

(3) the payment of transaction, management, consulting, monitoring and advisory fees and related expenses and indemnification payments to the Sponsors and their Affiliates pursuant to the Management Agreement, the Class C Agreement and the Expense Reimbursement Agreement, in each case not to exceed permitted payment set forth in Section 4.07(b)(14) and as in effect on the Issue Date and the termination fees pursuant to the Management Agreement, Class C Agreement or Expense Reimbursement Agreement, or any amendments thereto (so long as any such amendment is not materially disadvantageous in the good faith judgment of the Issuer to the Holders, when taken as a whole);

(4) the payment of reasonable and customary fees, compensation, benefits and incentive arrangements paid or provided to, and indemnities provided on behalf of officers, directors, employees or consultants of Issuer, any of its direct or indirect parent companies or any of its Restricted Subsidiaries;

(5) any agreement as in effect as of the Issue Date, or any amendment or replacement agreement thereto (so long as any such amendment is not materially disadvantageous in the good faith judgment of the Issuer to the Holders when taken as a whole as compared to the applicable agreement as in effect on the Issue Date);

(6) the existence of, or the performance by the Issuer or any of its Restricted Subsidiaries of its obligations under the terms of, any stockholders agreement (including any registration rights agreement or purchase agreement related thereto) to which it is a party as of the Issue Date and any similar agreements which it may enter into thereafter; provided, however, that the existence of, or the performance by the Issuer or any of its Restricted Subsidiaries of obligations under any future amendment or replacement agreement to any such existing agreement or under any similar agreement entered into after the Issue Date shall only be permitted by this clause (5) to the extent that the terms of any such amendment or new agreement are not otherwise materially disadvantageous in the good faith judgment of the Issuer to the Holders when taken as a whole;

(7) any transaction effected as part of a Qualified Receivables Financing permitted hereunder;

(8) any non-recourse pledge of Equity Interests of an Unrestricted Subsidiary to support the Indebtedness of such Unrestricted Subsidiary;

(9) the Transactions and the payment of all fees and expenses related to the Transactions, in each case as disclosed in the Offering Memorandum;

(10) transactions with customers, clients, suppliers or purchasers or sellers of goods or services, in each case in the ordinary course of business and otherwise in compliance with the terms of this Indenture which are fair to the Issuer and its Restricted Subsidiaries, in the good faith judgment of the Issuer or the senior management thereof, or are on terms at least as favorable as might reasonably have been obtained at such time from an unaffiliated party;

(11) the sale or issuance of Equity Interests (other than Disqualified Stock) of the Issuer;

(12) payments or loans (or cancellation of loans) to employees or consultants of the Issuer, any of its direct or indirect parent companies or any of its Restricted Subsidiaries and employment agreements, stock option plans and other similar arrangements with such employees or consultants which, in each case, are approved by the Issuer in good faith;

(13) transactions in which the Issuer or any Restricted Subsidiary, as the case may be, delivers to the trustee a letter from an Independent Financial Advisor stating that such transaction is fair to the Issuer or such Restricted Subsidiary from a financial point of view or meets the requirements of Section 4.11(a)(1) hereof; provided, however that with regard to an issue of Indebtedness of the Issuer or any of its Subsidiaries, such Affiliate holds no more than 15% of such issue (25% in the case of the Senior Secured Credit Facilities);

(14) transactions with Affiliates solely in their capacity as holders of Indebtedness or Equity Interests of the Issuer or any of its Subsidiaries, so long as such transaction is with all holders of such class (and there are such non-Affiliate holders) and such Affiliates are treated no more favorably than all other holders of such class generally;

(15) transactions in the ordinary course of business with (i) Unrestricted Subsidiaries or (ii) joint ventures in which the Issuer or a Subsidiary of the Issuer holds or acquires an ownership interest (whether by way of Capital Stock or otherwise) so long as the terms of any such transactions are, in each case, at least as favorable as might reasonably have been obtained at such time by an unaffiliated party; and

(16) transactions between the Issuer or any Restricted Subsidiary and any person that is an Affiliate of the Issuer or any Restricted Subsidiary solely because a director of such Person is also a director of the Issuer or any direct or indirect parent of the Issuer; provided that such director abstains from voting as a director of the Issuer or any direct or indirect parent, as the case may be, on any matter involving such other Person.

Section 4.12 Liens.

(a) The Issuer shall not, and shall not permit any Restricted Subsidiary to, directly or indirectly, create, incur, assume or suffer to exist any Lien (an “Initial Lien”) (except Permitted Liens) that secures obligations under any Indebtedness or any related guarantee, on any asset or property of the Issuer or any Restricted Subsidiary, or any income or profits therefrom, or assign or convey any right to receive income therefrom, unless:

(1) in the case of Liens securing Subordinated Indebtedness, the Notes and related Guarantees are secured by a Lien on such property, assets or proceeds that is senior in priority to such Liens; or

(2) in all other cases, the Notes or the Guarantees are equally and ratably secured, except that the foregoing shall not apply to (A) Liens securing the Notes and the related Guarantees and (B) Liens securing Indebtedness (including any letter of credit facility relating thereto) incurred under the Credit Facilities, including any letter of credit facility relating thereto, that was permitted by the terms of this Indenture to be incurred pursuant to Section 4.09(b)(1) hereof.

(b) Any Lien created for the benefit of the holders of Notes pursuant to Section 4.12(a) hereof shall provide by its terms that such Lien shall be automatically and unconditionally released and discharged upon discharge of the Initial Lien.

Section 4.13 Existence.

Subject to Article 5 hereof, the Issuer shall do or cause to be done all things necessary to preserve and keep in full force and effect (i) its limited liability company existence, and the corporate, partnership or other existence of each of the Restricted Subsidiaries, in accordance with the respective organizational documents (as the same may be amended from time to time) of such Issuer or any such Restricted Subsidiary and (ii) the material rights (charter and statutory), licenses and franchises of the Issuer and the Restricted Subsidiaries; provided that the Issuer shall not be required to preserve any such right, license or franchise, or the corporate, partnership or other existence of any of the Restricted Subsidiaries, if the Issuer in good faith shall determine that the preservation thereof is no longer desirable in the conduct of the business of the Issuer and the Restricted Subsidiaries, taken as a whole and provided further that the Issuer shall be permitted to convert to a corporation.

Section 4.14 Offer To Repurchase Upon Change of Control.

(a) If a Change of Control occurs, unless the Issuer has previously or concurrently mailed a redemption notice with respect to all the outstanding Notes as described under Section 3.07 hereof, the Issuer shall make an offer to purchase all of the Notes pursuant to the offer described below (the “Change of Control Offer”) at a price in cash (the “Change of Control Payment”) equal to 101% of the aggregate principal amount thereof plus accrued and unpaid interest, if any, to, but not including, the date of purchase, subject to the right of Holders of the Notes of record on the relevant Record Date to receive interest due on the relevant Interest Payment Date. Within 30 days following any Change of Control, the Issuer shall send notice of such Change of Control Offer by first-class mail or electronically, with

a copy to the Trustee, to each Holder of Notes at the address of such Holder appearing in the security register, with the following information:

(1) that a Change of Control Offer is being made pursuant to this Section 4.14 and that all Notes properly tendered pursuant to such Change of Control Offer will be accepted for payment by the Issuer;

(2) the purchase price and the purchase date, which will be no earlier than 30 days nor later than 60 days from the date such notice is mailed (the “Change of Control Payment Date”);

(3) that any Note not properly tendered will remain outstanding and continue to accrue interest;

(4) that unless the Issuer defaults in the payment of the Change of Control Payment, all Notes accepted for payment pursuant to the Change of Control Offer will cease to accrue interest on the Change of Control Payment Date;

(5) that Holders electing to have any Notes purchased pursuant to a Change of Control Offer will be required to surrender such Notes, with the form entitled “Option of Holder to Elect Purchase” on the reverse of such Notes completed, to the paying agent specified in the notice at the address specified in the notice prior to the close of business on the Business Day preceding the Change of Control Payment Date;

(6) that Holders shall be entitled to withdraw their tendered Notes and their election to require the Issuer to purchase such Notes, provided that the paying agent receives, not later than the close of business on the second Business Day prior to the Change of Control Payment Date, a facsimile transmission or letter setting forth the name of the Holder of the Notes, the principal amount of Notes tendered for purchase, and a statement that such Holder is withdrawing its tendered Notes and its election to have such Notes purchased;

(7) that if the Issuer is redeeming less than all of the Notes, the Holders of the remaining Notes will be issued new Notes and such new Notes will be equal in principal amount to the unpurchased portion of the Notes surrendered. The unpurchased portion of the Notes must be equal to $2,000 or an integral multiple of $1,000 in excess thereof;

(8) if such notice is mailed prior to the occurrence of a Change of Control, stating the Change of Control Offer is conditional on the occurrence of such Change of Control; and

(9) the other instructions, as determined by the Issuer, consistent with this Section 4.14, that a Holder must follow in order to have its Notes repurchased.

The notice, if sent in a manner herein provided, shall be conclusively presumed to have been given, whether or not the Holder receives such notice. If (a) the notice is sent in a manner herein provided and (b) any Holder fails to receive such notice or a Holder receives such notice but it is defective, such Holder’s failure to receive such notice or such defect shall not affect the validity of the proceedings for the purchase of the Notes as to all other Holders that properly received such notice without defect. The Issuer shall comply with the applicable requirements of Rule 14e-1 under the Exchange Act and any other securities laws and regulations thereunder to the extent such laws or regulations are applicable in connection with the repurchase of Notes pursuant to a Change of Control Offer. To the extent that the applicable provisions of any securities laws or regulations conflict with the provisions of this Section

4.14, the Issuer shall comply with the applicable securities laws and regulations and shall not be deemed to have breached its obligations under this Indenture by virtue thereof.

(b) On the Change of Control Payment Date, the Issuer shall, to the extent permitted by law,

(1) accept for payment all Notes issued by it or portions thereof properly tendered pursuant to the Change of Control Offer,

(2) deposit with the Paying Agent an amount equal to the aggregate Change of Control Payment in respect of all Notes or portions thereof so tendered, and

(3) deliver, or cause to be delivered, to the Trustee for cancellation the Notes so accepted together with an Officer’s Certificate to the Trustee stating that such Notes or portions thereof have been tendered to and purchased by the Issuer.

(c) The Issuer shall not be required to make a Change of Control Offer following a Change of Control if a third party makes the Change of Control Offer in the manner, at the times and otherwise in compliance with the requirements set forth in this Section 4.14 applicable to a Change of Control Offer made by the Issuer and purchases all Notes validly tendered and not withdrawn under such Change of Control Offer. Notwithstanding anything to the contrary herein, a Change of Control Offer may be made in advance of a Change of Control, conditional upon such Change of Control, if a definitive agreement is in place for the Change of Control at the time of making of the Change of Control Offer.

(d) Other than as specifically provided in this Section 4.14, any purchase pursuant to this Section 4.14 shall be made pursuant to the provisions of Sections 3.02, 3.05 and 3.06 hereof.

Section 4.15 Subsidiary Guarantors.

(a) If the Issuer or any of its Restricted Subsidiaries organizes, acquires, transfers assets to or otherwise invests in any Domestic Restricted Subsidiary (other than a Foreign Subsidiary, Disregarded Domestic Subsidiary, Domestic Subsidiary that is a direct or indirect subsidiary of a Foreign Subsidiary, Immaterial Subsidiary or Domestic Restricted Subsidiary that is prohibited by law or by the terms of any debt acquired pursuant to Section 4.09(b)(14) from issuing such Guarantee), then such Domestic Restricted Subsidiary shall:

(1) within ten Business Days execute, and deliver to the Trustee a supplemental indenture in form satisfactory to the Trustee pursuant to which such Domestic Restricted Subsidiary shall unconditionally Guarantee all of the Issuer’s obligations under the Notes and this Indenture on the terms set forth in this Indenture; and

(2) deliver to the Trustee an Opinion of Counsel that such supplemental indenture has been duly authorized, executed and delivered by such Domestic Restricted Subsidiary and constitutes a legal, valid, binding and enforceable obligation of such Domestic Restricted Subsidiary.

Thereafter, such Domestic Restricted Subsidiary shall be a Guarantor for all purposes of this Indenture. Notwithstanding the foregoing, an Opinion of Counsel shall not be required in connection with the addition of any Guarantor under this Indenture on the Issue Date upon execution and delivery by such Guarantor and the Trustee of a Supplemental Indenture to this Indenture.

(b) Notwithstanding the foregoing, from and after the Issue Date, the Issuer will not permit any of its Restricted Subsidiaries, directly or indirectly, by way of pledge, intercompany note or otherwise, to assume, guarantee or in any other manner become liable with respect to any Indebtedness (other than the Notes) of the Issuer or any Domestic Restricted Subsidiary of the Issuer, unless, in any such case, such Restricted Subsidiary executes and delivers a supplemental indenture (and the related Opinion of Counsel) to the Indenture providing a Guarantee of the Notes by such Restricted Subsidiary; provided that no Restricted Subsidiary shall be required to Guarantee the Notes if and to the extent it is prohibited by law from Guaranteeing the Notes. The obligations of each Guarantee by a Restricted Subsidiary will be limited as necessary to prevent the Guarantee from constituting a fraudulent conveyance or fraudulent transfer under applicable law.

For purposes of this Section 4.15, the following terms shall have the following meanings:

“Foreign Subsidiary”: any direct or indirect subsidiary of the Issuer (i) that is organized under the laws of any jurisdiction other than the United States, any state thereof or the District of Columbia or (ii) that solely owns equity in one or more Foreign Subsidiaries.

“Disregarded Domestic Person”: any direct or indirect Domestic Subsidiary of the Issuer that is treated as a disregarded entity for federal income tax purposes if it directly (or indirectly through one or more Disregarded Domestic Persons) owns the equity of one or more direct or indirect Foreign Subsidiaries.

“Immaterial Subsidiary”: each Subsidiary of the Issuer now existing or hereafter acquired or formed and each successor thereto, (a) which accounts for not more than (i) 2.5% of the consolidated gross revenues (after intercompany eliminations) of the Issuer and its Subsidiaries or (ii) 1.75% of the consolidated assets (after intercompany eliminations) of the Issuer and its Subsidiaries, in each case, as of the last day of the most recently completed fiscal quarter as reflected on the financial statements for such quarter after giving pro forma effect to the acquisition; and (b) if the Subsidiaries that constitute Immaterial Subsidiaries pursuant to clause (a) above account for, in the aggregate, more than 5% of such consolidated gross revenues and more than 3.5% of the consolidated assets, each as described in clause (a) above, then the term “Immaterial Subsidiary” shall not include each such Subsidiary necessary to account for at least 95% of the consolidated gross revenues and 96.5% of the consolidated assets, each as described in clause (a) above.

ARTICLE V

SUCCESSORS

Section 5.01 Merger, Consolidation or Sale of All or Substantially All Assets.

(a) The Issuer may not consolidate or merge with or into or wind up into (whether or not the Issuer is the surviving Person), or sell, assign, transfer, lease, convey or otherwise dispose of all or substantially all of its properties or assets, in one or more related transactions, to any Person unless:

(1) the Issuer is the surviving Person or the Person formed by or surviving any such consolidation or merger (if other than the Issuer) or to which such sale, assignment, transfer, lease, conveyance or other disposition will have been made is a corporation, partnership, limited liability company or similar entity organized or existing under the laws of the jurisdiction of organization of the United States, any state thereof, the District of Columbia, or any territory thereof (such Person, as the case may be, being herein called the “Successor Company”);

(2) the Successor Company, if other than the Issuer, expressly assumes all the obligations of the Issuer under the Notes pursuant to supplemental indentures or other documents or instruments in form reasonably satisfactory to the Trustee;

(3) immediately after such transaction, no Default exists;

(4) immediately after giving pro forma effect to such transaction and any related financing transactions, as if such transactions had occurred at the beginning of the applicable four-quarter period, (a) the Successor Company would be permitted to incur at least $1.00 of additional Indebtedness pursuant to the Fixed Charge Coverage Ratio test set forth in Section 4.09(a) hereof or (b) the Fixed Charge Coverage Ratio of the Successor Company and its Restricted Subsidiaries would be equal to or greater than such ratio for the Issuer and its Restricted Subsidiaries immediately prior to such transaction;

(5) each Guarantor, unless it is the other party to the transactions described above, in which case Section 5.01(c)(1)(B) hereof shall apply, shall have by supplemental indenture confirmed that its Guarantee shall apply to such Person’s obligations under this Indenture and the Notes; and

(6) the Issuer shall have delivered to the Trustee an Officer’s Certificate and an Opinion of Counsel, each stating that such consolidation, merger or transfer and such supplemental indentures, if any, comply with this Indenture.

(b) The Successor Company shall succeed to, and be substituted for the Issuer, as the case may be, under this Indenture, the Guarantees and the Notes, as applicable. Notwithstanding clauses (3) and (4) of Section 5.01(a) hereof,

(1) any Restricted Subsidiary may consolidate with or merge into or transfer all or part of its properties and assets to the Issuer or a Guarantor,

(2) the Issuer may merge with an Affiliate of the Issuer solely for the purpose of reincorporating the Issuer in a State of the United States so long as the amount of Indebtedness of the Issuer and its Restricted Subsidiaries is not increased thereby, and

(3) Xxxxxx International, Inc. may merge with a wholly owned Restricted Subsidiary of the Issuer solely for the purpose of converting to a limited liability company.

(c) Subject to certain limitations described in this Indenture governing the release of a Guarantee upon the sale, disposition or transfer of a Guarantor, no Guarantor shall, and the Issuer shall not permit any Guarantor to, consolidate or merge with or into or wind up into (whether or not the Issuer or Guarantor is the surviving corporation), or sell, assign, transfer, lease, convey or otherwise dispose of all or substantially all of its properties or assets, in one or more related transactions, to any Person unless:

(1) (A) such Guarantor is the surviving Person or the Person formed by or surviving any such consolidation or merger (if other than such Guarantor) or to which such sale, assignment, transfer, lease, conveyance or other disposition will have been made is a corporation, partnership, limited partnership, limited liability company or trust or similar entity organized or existing under the laws of the jurisdiction of organization of such Guarantor, as the case may be, or the laws of the United States, any state thereof, the District of Columbia, or any territory thereof (such Guarantor or such Person, as the case may be, being herein called the “Successor Person”);

(B) the Successor Person, if other than such Guarantor, expressly assumes all the obligations of such Guarantor under this Indenture and such Guarantor’s related Guarantee pursuant to supplemental indentures or other documents or instruments in form reasonably satisfactory to the Trustee;

(D) the Issuer shall have delivered to the Trustee an Officer’s Certificate and an Opinion of Counsel, each stating that such consolidation, merger or transfer and such supplemental indentures, if any, comply with this Indenture; notwithstanding the foregoing, an Officer’s Certificate and an Opinion of Counsel shall not be required in connection with the addition of any Guarantor under this Indenture on the Issue Date upon execution and delivery by such Guarantor and the Trustee of a Supplemental Indenture to this Indenture; or

(2) the transaction is made in compliance with Section 4.10 hereof.

(d) In the case of clause (c)(1) above, the Successor Person shall succeed to, and be substituted for, such Guarantor under this Indenture and such Guarantor’s Guarantee. Notwithstanding the foregoing, any Guarantor may merge into or transfer all or part of its properties and assets to another Guarantor or the Issuer.

Section 5.02 Successor Corporation Substituted.

Upon any consolidation or merger, or any sale, assignment, transfer, lease, conveyance or other disposition of all or substantially all of the assets of the Issuer in accordance with Section 5.01 hereof, the successor corporation formed by such consolidation or into or with which the Issuer is merged or to which such sale, assignment, transfer, lease, conveyance or other disposition is made shall succeed to, and be substituted for (so that from and after the date of such consolidation, merger, sale, lease, conveyance or other disposition, the provisions of this Indenture referring to the Issuer shall refer instead to the successor corporation and not to the Issuer), and may exercise every right and power of the Issuer under this Indenture with the same effect as if such successor Person had been named as the Issuer herein; provided that the predecessor Issuer shall not be relieved from the obligation to pay the principal of and interest, if any, on the Notes except in the case of a sale, assignment, transfer, conveyance or other disposition of all of the Issuer’s assets that meets the requirements of Section 5.01 hereof.

ARTICLE VI

DEFAULTS AND REMEDIES

Section 6.01 Events of Default.

An “Event of Default” wherever used herein, means any one of the following events:

(1) default in payment when due and payable, upon redemption, acceleration or otherwise, of principal of, or premium, if any, on the Notes;

(2) default for 30 days or more in the payment when due of interest on or with respect to the Notes;

(3) failure by the Issuer or any Restricted Subsidiary to comply with any of its obligations, covenants or agreements (other than a default referred to in clauses (1) and (2) above)

contained in this Indenture or the Notes for 60 days after receipt of written notice given to the Issuer by the Trustee or the Holders of not less than 25% in principal amount of the Notes to comply with any of its other agreements in the Indenture or the Notes;

(4) default under any mortgage, indenture or instrument under which there is issued or by which there is secured or evidenced any Indebtedness for money borrowed by the Issuer or any of its Restricted Subsidiaries or the payment of which is guaranteed by the Issuer or any of its Restricted Subsidiaries, other than Indebtedness owed to the Issuer or a Restricted Subsidiary, whether such Indebtedness or guarantee now exists or is created after the issuance of the Notes, if both:

(a) such default either results from the failure to pay any principal of such Indebtedness at its stated final maturity (after giving effect to any applicable grace periods) or relates to an obligation other than the obligation to pay principal of any such Indebtedness at its stated final maturity and results in the holder or holders of such Indebtedness causing such Indebtedness to become due prior to its stated maturity; and

(b) the principal amount of such Indebtedness, together with the principal amount of any other such Indebtedness in default for failure to pay principal at stated final maturity (after giving effect to any applicable grace periods), or the maturity of which has been so accelerated, aggregate $30 million or more at any one time outstanding;

(5) failure by the Issuer or any Significant Subsidiary (or group of Restricted Subsidiaries that taken together would constitute a Significant Subsidiary) to pay final judgments aggregating in excess of $30 million, which final judgments remain unpaid, undischarged and unstayed for a period of more than 60 days after such judgment becomes final, and in the event such judgment is covered by insurance, an enforcement proceeding has been commenced by any creditor upon such judgment or decree which is not promptly stayed;

(6) the Issuer or any Significant Subsidiary or any group of Restricted Subsidiaries that, taken together, would constitute a Significant Subsidiary (as of the date of the most recent consolidated financial statements of the Issuer delivered pursuant to Section 4.03), pursuant to or within the meaning of any Bankruptcy Law:

(i) commences proceedings to be adjudicated bankrupt or insolvent;

(ii) consents to the institution of bankruptcy or insolvency proceedings against it, or the filing by it of a petition or answer or consent seeking reorganization or relief under applicable Bankruptcy Law;

(iii) consents to the appointment of a receiver, liquidator, assignee, trustee, sequestrator or other similar official of it or for all or substantially all of its property;

(iv) makes a general assignment for the benefit of its creditors; or

(v) generally is not paying its debts as they become due;

(7) a court of competent jurisdiction enters an order or decree under any Bankruptcy Law that:

(i) is for relief against the Issuer or any Significant Subsidiary or any group of Restricted Subsidiaries that, taken together, would constitute a Significant Subsidiary (as of the date of the most recent consolidated financial statements of the Issuer delivered pursuant to Section 4.03), in a proceeding in which the Issuer, any Significant Subsidiary or any group of Restricted Subsidiaries that, taken together, would constitute a Significant Subsidiary, is to be adjudicated bankrupt or insolvent;

(ii) appoints a receiver, liquidator, assignee, trustee, sequestrator or other similar official of the Issuer or any Significant Subsidiary or any group of Restricted Subsidiaries that, taken together, would constitute a Significant Subsidiary (as of the date of the most recent consolidated financial statements of the Issuer delivered pursuant to Section 4.03), or for all or substantially all of the property of the Issuer or any Significant Subsidiary or any group of Restricted Subsidiaries that, taken together, would constitute a Significant Subsidiary (as of the date of the most recent consolidated financial statements of the Issuer); or

(iii) orders the liquidation of the Issuer or any Significant Subsidiary or any group of Restricted Subsidiaries that, taken together, would constitute a Significant Subsidiary (as of the date of the most recent consolidated financial statements of the Issuer delivered pursuant to Section 4.03);

and the order or decree remains unstayed and in effect for 60 consecutive days; or

(8) the Guarantee of any Significant Subsidiary (or group of Guarantors that taken together would constitute a Significant Subsidiary) shall for any reason cease to be in full force and effect or be declared null and void or any responsible officer of such Guarantor, as the case may be, denies that it has any further liability under its Guarantee or gives notice to such effect, other than by reason of the termination of this Indenture or the release of any such Guarantee in accordance with this Indenture and such default continues for 10 Business Days.

Section 6.02 Acceleration.

If any Event of Default (other than a type specified in clause (6) or (7) of Section 6.01 hereof, in either case, with respect to the Issuer) occurs and is continuing under this Indenture, the Trustee (by written notice to the Issuer) or the Holders of at least 25% in principal amount of the then total outstanding Notes (by written notice to the Issuer and the Trustee) may declare the principal, premium, if any, interest and any other monetary obligations on all the then outstanding Notes to be due and payable immediately.

Upon the effectiveness of such declaration, such principal and interest shall be due and payable immediately. The Trustee may withhold from the Holders notice of any continuing Default, except a Default relating to the payment of principal, premium, if any, or interest if it determines that withholding notice is in their interest.

Notwithstanding the foregoing, in the case of an Event of Default arising under clause (6) or (7) of Section 6.01 hereof with respect to the Issuer, all outstanding Notes shall be due and payable immediately without further action or notice.

The Holders of a majority in aggregate principal amount of the then outstanding Notes by written notice to the Trustee may on behalf of all of the Holders rescind an acceleration and its consequences if the rescission would not conflict with any judgment or decree and if all existing Events of

Default (except nonpayment of principal, interest or premium that has become due solely because of the acceleration) have been cured or waived.

Section 6.03 Other Remedies.

If an Event of Default occurs and is continuing, the Trustee may pursue any available remedy to collect the payment of principal, premium, if any, and interest on the Notes or to enforce the performance of any provision of the Notes or this Indenture.

The Trustee may maintain a proceeding even if it does not possess any of the Notes or does not produce any of them in the proceeding. A delay or omission by the Trustee or any Holder of a Note in exercising any right or remedy accruing upon an Event of Default shall not impair the right or remedy or constitute a waiver of or acquiescence in the Event of Default. All remedies are cumulative to the extent permitted by law.

Section 6.04 Waiver of Past Defaults.

Holders of not less than a majority in aggregate principal amount of the then outstanding Notes by notice to the Trustee may on behalf of the Holders of all of the Notes waive any existing Default and its consequences hereunder, except a continuing Default in the payment of the principal of, premium, if any, or interest on, any Note held by a non-consenting Holder (including in connection with an Asset Sale Offer or a Change of Control Offer) or a continuing Default in respect of a covenant or provision of this Indenture which may not be amended or modified without the consent of all Holders; provided, subject to Section 6.02 hereof, that the Holders of a majority in aggregate principal amount of the then outstanding Notes may rescind an acceleration and its consequences, including any related payment default that resulted from such acceleration. Upon any such waiver, such Default shall cease to exist, and any Event of Default arising therefrom shall be deemed to have been cured for every purpose of this Indenture; but no such waiver shall extend to any subsequent or other Default or impair any right consequent thereon.

Section 6.05 Control by Majority.

Holders of a majority in aggregate principal amount of the then total outstanding Notes may direct the time, method and place of conducting any proceeding for any remedy available to the Trustee or of exercising any trust or power conferred on the Trustee with respect to the Notes. The Trustee, however, may refuse to follow any direction that conflicts with law or this Indenture or that the Trustee determines is unduly prejudicial to the rights of any other Holder of a Note or that would involve the Trustee in personal liability.

Section 6.06 Limitation on Suits.

Subject to Section 6.07 hereof, no Holder of a Note may pursue any remedy with respect to this Indenture or the Notes unless:

(1) such Holder has previously given the Trustee written notice that an Event of Default is continuing;

(2) Holders of at least 25% in aggregate principal amount of the total outstanding Notes have requested the Trustee to pursue the remedy;

(3) Holders of the Notes have offered the Trustee security or indemnity satisfactory to it against any loss, liability or expense;

(4) the Trustee has not complied with such request within 60 days after the receipt thereof and the offer of security or indemnity; and

(5) Holders of a majority in principal amount of the total outstanding Notes have not given the Trustee a direction inconsistent with such request within such 60-day period.

A Holder of a Note may not use this Indenture to prejudice the rights of another Holder of a Note or to obtain a preference or priority over another Holder of a Note (it being understood that the Trustee does not have an affirmative duty to ascertain whether or not such actions or forbearances are unduly prejudicial to such Holders).

Section 6.07 Rights of Holders of Notes To Receive Payment.

Notwithstanding any other provision of this Indenture, the right of any Holder of a Note to receive payment of principal, premium, if any, and interest on the Note, on or after the respective due dates expressed in the Note (including in connection with an Asset Sale Offer or a Change of Control Offer), or to bring suit for the enforcement of any such payment on or after such respective dates, shall not be impaired or affected without the consent of such Holder.

Section 6.08 Collection Suit by Trustee.

If an Event of Default specified in Section 6.01(1) or (2) hereof occurs and is continuing, the Trustee is authorized to recover judgment in its own name and as trustee of an express trust against the Issuer for the whole amount of principal of, premium, if any, and interest then due and owing on the Notes and interest on overdue principal and, to the extent lawful, interest and such further amount as shall be sufficient to cover the costs and expenses of collection, including the reasonable compensation, expenses, disbursements and advances of the Trustee, its agents and counsel.

Section 6.09 Restoration of Rights and Remedies.

If the Trustee or any Holder has instituted any proceeding to enforce any right or remedy under this Indenture and such proceeding has been discontinued or abandoned for any reason, or has been determined adversely to the Trustee or to such Holder, then and in every such case, subject to any determination in such proceedings, the Issuer, the Trustee and the Holders shall be restored severally and respectively to their former positions hereunder and thereafter all rights and remedies of the Trustee and the Holders shall continue as though no such proceeding has been instituted.

Section 6.10 Rights and Remedies Cumulative.

Except as otherwise provided with respect to the replacement or payment of mutilated, destroyed, lost or stolen Notes in Section 2.07 hereof, no right or remedy herein conferred upon or reserved to the Trustee or to the Holders is intended to be exclusive of any other right or remedy, and every right and remedy shall, to the extent permitted by law, be cumulative and in addition to every other right and remedy given hereunder or now or hereafter existing at law or in equity or otherwise. The assertion or employment of any right or remedy hereunder, or otherwise, shall not prevent the concurrent assertion or employment of any other appropriate right or remedy.

Section 6.11 Delay or Omission Not Waiver.

No delay or omission of the Trustee or of any Holder of any Note to exercise any right or remedy accruing upon any Event of Default shall impair any such right or remedy or constitute a waiver of any such Event of Default or an acquiescence therein. Every right and remedy given by this Article or by law to the Trustee or to the Holders may be exercised from time to time, and as often as may be deemed expedient, by the Trustee or by the Holders, as the case may be.

Section 6.12 Trustee May File Proofs of Claim.

The Trustee is authorized to file such proofs of claim and other papers or documents as may be necessary or advisable in order to have the claims of the Trustee (including any claim for the reasonable compensation, expenses, disbursements and advances of the Trustee, its agents and counsel) and the Holders of the Notes allowed in any judicial proceedings relative to the Issuer (or any other obligor upon the Notes including the Guarantors), its creditors or its property and shall be entitled and empowered to participate as a member in any official committee of creditors appointed in such matter and to collect, receive and distribute any money or other property payable or deliverable on any such claims and any custodian in any such judicial proceeding is hereby authorized by each Holder to make such payments to the Trustee, and in the event that the Trustee shall consent to the making of such payments directly to the Holders, to pay to the Trustee any amount due to it for the reasonable compensation, expenses, disbursements and advances of the Trustee, its agents and counsel, and any other amounts due the Trustee under Section 7.07 hereof. To the extent that the payment of any such compensation, expenses, disbursements and advances of the Trustee, its agents and counsel, and any other amounts due the Trustee under Section 7.07 hereof out of the estate in any such proceeding, shall be denied for any reason, payment of the same shall be secured by a Lien on, and shall be paid out of, any and all distributions, dividends, money, securities and other properties that the Holders may be entitled to receive in such proceeding whether in liquidation or under any plan of reorganization or arrangement or otherwise. Nothing herein contained shall be deemed to authorize the Trustee to authorize or consent to or accept or adopt on behalf of any Holder any plan of reorganization, arrangement, adjustment or composition affecting the Notes or the rights of any Holder, or to authorize the Trustee to vote in respect of the claim of any Holder in any such proceeding.

Section 6.13 Priorities.

If the Trustee collects any money pursuant to this Article 6, it shall pay out the money in the following order:

(i) to the Trustee, its agents and attorneys for amounts due under Section 7.07 hereof, including payment of all compensation, expenses and liabilities incurred, and all advances made, by the Trustee and the costs and expenses of collection;

(ii) to Holders of Notes for amounts due and unpaid on the Notes for principal, premium, if any, and interest, ratably, without preference or priority of any kind, according to the amounts due and payable on the Notes for principal, premium, if any, and interest, respectively; and

(iii) to the Issuer or to such party as a court of competent jurisdiction shall direct including a Guarantor, if applicable.

The Trustee may fix a record date and payment date for any payment to Holders of Notes pursuant to this Section 6.13.

Section 6.14 Undertaking for Costs.

In any suit for the enforcement of any right or remedy under this Indenture or in any suit against the Trustee for any action taken or omitted by it as a Trustee, a court in its discretion may require the filing by any party litigant in the suit of an undertaking to pay the costs of the suit, and the court in its discretion may assess reasonable costs, including reasonable attorneys’ fees and expenses, against any party litigant in the suit, having due regard to the merits and good faith of the claims or defenses made by the party litigant. This Section 6.14 does not apply to a suit by the Trustee, a suit by the Issuer, a suit by a Holder of a Note pursuant to Section 6.07 hereof, or a suit by Holders of more than 10% in principal amount of the then outstanding Notes.

ARTICLE VII

TRUSTEE

Section 7.01 Duties of Trustee.

(a) If an Event of Default has occurred and is continuing, the Trustee shall exercise such of the rights and powers vested in it by this Indenture, and use the same degree of care and skill in its exercise, as a prudent Person would exercise or use under the circumstances in the conduct of such Person’s own affairs.

(b) Except during the continuance of an Event of Default:

(i) the duties of the Trustee shall be determined solely by the express provisions of this Indenture and the Trustee need perform only those duties that are specifically set forth in this Indenture and no others, and no implied covenants or obligations shall be read into this Indenture against the Trustee; and

(ii) in the absence of bad faith on its part, the Trustee may conclusively rely, as to the truth of the statements and the correctness of the opinions expressed therein, upon certificates or opinions furnished to the Trustee and conforming to the requirements of this Indenture. However, in the case of any such certificates or opinions which by any provision hereof are specifically required to be furnished to the Trustee, the Trustee shall examine the certificates and opinions to determine whether or not they conform to the requirements of this Indenture, but need not confirm or investigate the accuracy of mathematical calculations or other facts stated therein.

(c) The Trustee may not be relieved from liabilities for its own negligent action, its own negligent failure to act, or its own willful misconduct, except that:

(i) this paragraph does not limit the effect of paragraph (b) of this Section 7.01;

(ii) the Trustee shall not be liable for any error of judgment made in good faith by a Responsible Officer, unless it is proved in a court of competent jurisdiction that the Trustee was negligent in ascertaining the pertinent facts; and

(iii) the Trustee shall not be liable with respect to any action it takes or omits to take in good faith in accordance with a direction received by it pursuant to Section 6.05 hereof.

(d) Whether or not therein expressly so provided, every provision of this Indenture that in any way relates to the Trustee is subject to paragraphs (a), (b) and (c) of this Section 7.01.

(e) The Trustee shall be under no obligation to exercise any of its rights or powers under this Indenture at the request or direction of any Holder of the Notes unless such Holder has offered to the Trustee indemnity or security satisfactory to it against any loss, liability or expense.

(f) The Trustee shall not be liable for interest on any money received by it except as the Trustee may agree in writing with the Issuer. Money held in trust by the Trustee need not be segregated from other funds except to the extent required by law.

Section 7.02 Rights of Trustee.

(a) The Trustee may conclusively rely upon and shall be fully protected in acting or refraining from acting upon any resolution, certificate, statement, instrument, opinion, report, notice, request, direction, consent, order or other paper or document believed by it to be genuine and to have been signed or presented by the proper Person. The Trustee need not investigate any fact or matter stated in the document, but the Trustee, in its discretion, may make such further inquiry or investigation into such facts or matters as it may see fit, and, if the Trustee shall determine to make such further inquiry or investigation, it shall be entitled to examine the books, records and premises of the Issuer, personally or by agent or attorney at the sole cost of the Issuer and shall incur no liability or additional liability of any kind by reason of such inquiry or investigation.

(b) Before the Trustee acts or refrains from acting, it may require an Officer’s Certificate or an Opinion of Counsel or both. The Trustee shall not be liable for any action it takes or omits to take in good faith in reliance on such Officer’s Certificate or Opinion of Counsel. The Trustee may consult with counsel of its selection and the advice of such counsel or any Opinion of Counsel shall be full and complete authorization and protection from liability in respect of any action taken, suffered or omitted by it hereunder in good faith and in reliance thereon.

(c) The Trustee may act through its attorneys and agents and shall not be responsible for the misconduct or negligence of any agent or attorney appointed with due care.

(d) The Trustee shall not be liable for any action it takes or omits to take in good faith that it believes to be authorized or within the rights or powers conferred upon it by this Indenture.

(e) Unless otherwise specifically provided in this Indenture, any demand, request, direction or notice from the Issuer shall be sufficient if signed by an Officer of the Issuer.

(f) None of the provisions of this Indenture shall require the Trustee to expend or risk its own funds or otherwise to incur any liability, financial or otherwise, in the performance of any of its duties hereunder, or in the exercise of any of its rights or powers if it shall have reasonable grounds for believing that repayment of such funds or indemnity satisfactory to it against such risk or liability is not assured to it.

(g) The Trustee shall not be deemed to have notice of any Default or Event of Default unless a Responsible Officer of the Trustee has actual knowledge thereof or unless written notice of any event which is in fact such a Default is received by the Trustee at the Corporate Trust Office, and such notice references the Notes and this Indenture.

(h) In no event shall the Trustee be responsible or liable for special, indirect, punitive or consequential loss or damage of any kind whatsoever (including, but not limited to, loss of profit) irrespective of whether the Trustee has been advised of the likelihood of such loss or damage and regardless of the form of action.

(i) The rights, privileges, protections, immunities and benefits given to the Trustee, including, without limitation, its right to be indemnified, are extended to, and shall be enforceable by, the Trustee in each of its capacities hereunder, and each agent, custodian and other Person employed to act hereunder.

(j) The permissive rights of the Trustee enumerated herein shall not be construed as duties.

(k) The Trustee may request that the Issuer delivers an Officer’s Certificate setting forth the names of individuals and/or titles of officers authorized at such time to take specified actions pursuant to this Indenture.

(l) The Trustee shall not be required to give any bond or surety in respect of the performance of its powers and duties hereunder.

Section 7.03 Individual Rights of Trustee.

The Trustee in its individual or any other capacity may become the owner or pledgee of Notes and may otherwise deal with the Issuer or any Affiliate of the Issuer with the same rights it would have if it were not Trustee. However, in the event that the Trustee acquires any conflicting interest it must eliminate such conflict within 90 days, apply to the SEC for permission to continue as trustee or resign. The Paying Agent or Registrar do the same with like rights and duties. The Trustee is also subject to Sections 7.10 and 7.11 hereof.

Section 7.04 Trustee’s Disclaimer.

The Trustee shall not be responsible for and makes no representation as to the validity or adequacy of this Indenture or the Notes, it shall not be accountable for the Issuer’s use of the proceeds from the Notes or any money paid to the Issuer or upon the Issuer’s direction under any provision of this Indenture, it shall not be responsible for the use or application of any money received by any Paying Agent other than the Trustee, and it shall not be responsible for any statement or recital herein or any statement in the Notes or any other document in connection with the sale of the Notes or pursuant to this Indenture other than its certificate of authentication.

Section 7.05 Notice of Defaults.

If a Default occurs and is continuing and if it is known to a Responsible Officer of the Trustee, the Trustee shall send to Holders of Notes a notice of the Default within the later of 90 days after it occurs or 30 days after a Responsible Officer of the Trustee obtains actual knowledge of such Default. Except in the case of a Default relating to the payment of principal, premium, if any, or interest on any Note, the Trustee may withhold from the Holders notice of any continuing Default if and so long as it in good faith determines that withholding the notice is in the interests of the Holders of the Notes. The Trustee shall not be deemed to know of any Default unless a Responsible Officer of the Trustee has actual knowledge thereof or unless written notice of any event which is such a Default is received by the Trustee at the Corporate Trust Office.

Section 7.06 Reports by Trustee to Holders of the Notes.

Within 60 days after each June 15, beginning with June 15, 2012, and for so long as Notes remain outstanding, the Trustee shall mail to the Holders of the Notes a brief report dated as of such reporting date that complies with Trust Indenture Act Section 313(a) (but if no event described in

Trust Indenture Act Section 313(a) has occurred within the twelve months preceding the reporting date, no report need be transmitted). The Trustee also shall comply with Trust Indenture Act Section 313(b)(2). The Trustee shall also transmit by mail all reports as required by Trust Indenture Act Section 313(c).

A copy of each report at the time of its mailing to the Holders of Notes shall be mailed to the Issuer and filed with the SEC and each stock exchange on which the Notes are listed in accordance with Trust Indenture Act Section 313(d). The Issuer shall promptly notify the Trustee in writing when the Notes are listed on any stock exchange or delisted therefrom.

Section 7.07 Compensation and Indemnity.

The Issuer and the Guarantors, jointly and severally, shall pay to the Trustee from time to time such compensation for its acceptance of this Indenture and services hereunder as the parties shall agree in writing from time to time. The Trustee’s compensation shall not be limited by any law on compensation of a trustee of an express trust. The Issuer and the Guarantors, jointly and severally, shall reimburse the Trustee promptly upon request for all reasonable disbursements, advances and expenses incurred or made by it in addition to the compensation for its services. Such expenses shall include the reasonable compensation, disbursements and expenses of the Trustee’s agents and counsel.

The Issuer and the Guarantors, jointly and severally, shall indemnify the Trustee for, and hold the Trustee harmless against, any and all loss, damage, claims, liability or expense (including attorneys’ fees and expenses and taxes (other than taxes based upon the income of the Trustee)) incurred by it in connection with the acceptance or administration of this trust and the performance of its duties hereunder (including the costs and expenses of enforcing this Indenture against any Issuer or any of the Guarantors (including this Section 7.07) or defending itself against any claim whether asserted by any Holder, any Issuer or any Guarantor, or liability in connection with the acceptance, exercise or performance of any of its powers or duties hereunder). The Trustee shall notify the Issuer promptly of any claim for which it may seek indemnity. Failure by the Trustee to so notify the Issuer shall not relieve the Issuer of its obligations hereunder except to the extent actually prejudiced thereby. The Issuer shall defend the claim, and the Trustee shall cooperate in the defense of such claim. The Trustee may have separate counsel if the Trustee shall have been advised by counsel that there may be one or more legal defenses available to it that are different from or additional to those available to the Issuer and in the reasonable judgment of such counsel it is advisable for the Trustee to engage separate counsel, and the Issuer shall pay the reasonable and documented fees and expenses of any one such separate counsel (as well as such fees and expenses of one firm of local counsel in each jurisdiction in which the primary counsel is not admitted to practice and where local counsel is necessary or advisable). The Issuer need not pay for any settlement made without its consent, which consent shall not be unreasonably withheld. The Issuer need not reimburse any expense or indemnify against any loss, damage, claim, liability or expense incurred as determined in a final judgment by a court of competent jurisdiction, by the Trustee through the Trustee’s own willful misconduct or negligence.

The obligations of the Issuer under this Section 7.07 shall survive the satisfaction and discharge of this Indenture or the earlier resignation or removal of the Trustee.

To secure the payment obligations of the Issuer and the Guarantors in this Section 7.07, the Trustee shall have a Lien prior to the Notes on all money or property held or collected by the Trustee, except that held in trust to pay principal, premium (if any) and interest on particular Notes. Such Lien shall survive the satisfaction and discharge of this Indenture.

When the Trustee incurs expenses or renders services after an Event of Default specified in Section 6.01(6) or (7) hereof occurs, the expenses and the compensation for the services (including the fees and expenses of its agents and counsel) are intended to constitute expenses of administration under any Bankruptcy Law.

The Trustee shall comply with the provisions of Trust Indenture Act Section 313(b)(2) to the extent applicable.

Section 7.08 Replacement of Trustee.

A resignation or removal of the Trustee and appointment of a successor Trustee shall become effective only upon the successor Trustee’s acceptance of appointment as provided in this Section 7.08. The Trustee may resign in writing at any time and be discharged from the trust hereby created by so notifying the Issuer. The Holders of a majority in principal amount of the then outstanding Notes may remove the Trustee by so notifying the Trustee and the Issuer in writing not less than 30 days prior to the effective date of such removal. The Issuer may remove the Trustee if:

(a) the Trustee fails to comply with Section 7.10 hereof;

(b) the Trustee is adjudged a bankrupt or an insolvent or an order for relief is entered with respect to the Trustee under any Bankruptcy Law;

(d) the Trustee becomes incapable of acting.

If the Trustee resigns or is removed or if a vacancy exists in the office of Trustee for any reason, the Issuer shall promptly appoint a successor Trustee. Within one year after the successor Trustee takes office, the Holders of a majority in principal amount of the then outstanding Notes may appoint a successor Trustee to replace the successor Trustee appointed by the Issuer.

If a successor Trustee does not take office within 60 days after the retiring Trustee resigns or is removed, the retiring Trustee (at the Issuer’s expense), the Issuer or the Holders of at least 10% in principal amount of the then outstanding Notes may, at the expense of the Issuer, petition any court of competent jurisdiction for the appointment of a successor Trustee.

If the Trustee, after written request by any Holder who has been a Holder for at least six months, fails to comply with Section 7.10 hereof, such Holder may petition any court of competent jurisdiction for the removal of the Trustee and the appointment of a successor Trustee.

A successor Trustee shall deliver a written acceptance of its appointment to the retiring Trustee and to the Issuer. Thereupon, the resignation or removal of the retiring Trustee shall become effective, and the successor Trustee shall have all the rights, powers and duties of the Trustee under this Indenture. The successor Trustee shall mail a notice of its succession to Holders. The retiring Trustee shall, at the expense of the Issuer, promptly transfer all property held by it as Trustee to the successor Trustee; provided all sums owing to the Trustee hereunder have been paid and subject to the Lien provided for in Section 7.07 hereof. Notwithstanding replacement of the Trustee pursuant to this Section 7.08, the Issuer’s obligations under Section 7.07 hereof shall continue for the benefit of the retiring Trustee. The predecessor Trustee shall have no liability for any action or inaction by any successor Trustee.

Section 7.09 Successor Trustee by Merger, etc.

If the Trustee consolidates, merges or converts into, or transfers all or substantially all of its corporate trust business to, another corporation, the successor corporation without any further act shall be the successor Trustee.

Section 7.10 Eligibility; Disqualification.

There shall at all times be a Trustee hereunder that is a corporation organized and doing business under the laws of the United States of America or of any state thereof that is authorized under such laws to exercise corporate trustee power, that is subject to supervision or examination by federal or state authorities and that has a combined capital and surplus of at least $50,000,000 as set forth in its most recent published annual report of condition.

This Indenture shall always have a Trustee who satisfies the requirements of Trust Indenture Act Sections 310(a)(1), (2) and (5). The Trustee is subject to Trust Indenture Act Section 310(b).

Section 7.11 Preferential Collection of Claims Against Issuer.

The Trustee is subject to Trust Indenture Act Section 311(a), excluding any creditor relationship listed in Trust Indenture Act Section 311(b). A Trustee who has resigned or been removed shall be subject to Trust Indenture Act Section 311(a) to the extent indicated therein.

ARTICLE VIII

LEGAL DEFEASANCE AND COVENANT DEFEASANCE

Section 8.01 Option To Effect Legal Defeasance or Covenant Defeasance.

The Issuer may, at its option and at any time, elect to have either Section 8.02 or 8.03 hereof applied to all outstanding Notes upon compliance with the conditions set forth below in this Article 8.

Section 8.02 Legal Defeasance and Discharge.

Upon the Issuer’s exercise under Section 8.01 hereof of the option applicable to this Section 8.02, the Issuers and the Guarantors shall, subject to the satisfaction of the conditions set forth in Section 8.04 hereof, be deemed to have been discharged from their obligations with respect to all outstanding Notes and Guarantees on the date the conditions set forth below are satisfied (“Legal Defeasance”). For this purpose, Legal Defeasance means that the Issuer shall be deemed to have paid and discharged the entire Indebtedness represented by the outstanding Notes, which shall thereafter be deemed to be “outstanding” only for the purposes of Section 8.05 hereof and the other Sections of this Indenture referred to in (a) and (b) below, and to have satisfied all its other obligations under such Notes and this Indenture including that of the Guarantors (and the Trustee, on demand of and at the expense of the Issuer, shall execute proper instruments acknowledging the same) and cure all then existing Events of Default, except for the following provisions which shall survive until otherwise terminated or discharged hereunder:

(a) the rights of Holders of Notes to receive payments in respect of the principal of, premium, if any, and interest on the Notes when such payments are due solely out of the trust created pursuant to this Indenture referred to in Section 8.04 hereof;

(b) the Issuer’s obligations with respect to Notes concerning issuing temporary Notes, registration of such Notes, mutilated, destroyed, lost or stolen Notes and the maintenance of an office or agency for payment and money for security payments held in trust;

(c) the rights, powers, trusts, duties and immunities of the Trustee, and the Issuer’s obligations in connection therewith; and

(d) this Section 8.02.

Subject to compliance with this Article 8, the Issuer may exercise its option under this Section 8.02 notwithstanding the prior exercise of its option under Section 8.03 hereof.

Section 8.03 Covenant Defeasance.

Upon the Issuer’s exercise under Section 8.01 hereof of the option applicable to this Section 8.03, the Issuer and the Guarantors shall, subject to the satisfaction of the conditions set forth in Section 8.04 hereof, be released from their obligations under the covenants contained in Sections 4.03, 4.04, 4.05, 4.07, 4.08, 4.09, 4.10, 4.11, 4.12, 4.14 and 4.15 hereof and the operation of Section 5.01 with respect to the outstanding Notes on and after the date the conditions set forth in Section 8.04 hereof are satisfied (“Covenant Defeasance”), and the Notes shall thereafter be deemed not “outstanding” for the purposes of any direction, waiver, consent or declaration or act of Holders (and the consequences of any thereof) in connection with such covenants, but shall continue to be deemed “outstanding” for all other purposes hereunder (it being understood that such Notes shall not be deemed outstanding for accounting purposes). For this purpose, Covenant Defeasance means that, with respect to the outstanding Notes, the Issuer may omit to comply with and shall have no liability in respect of any term, condition or limitation set forth in any such covenant, whether directly or indirectly, by reason of any reference elsewhere herein to any such covenant or by reason of any reference in any such covenant to any other provision herein or in any other document and such omission to comply shall not constitute a Default or an Event of Default under Section 6.01 hereof, but, except as specified above, the remainder of this Indenture and such Notes shall be unaffected thereby. In addition, upon the Issuer’s exercise under Section 8.01 hereof of the option applicable to this Section 8.03 hereof, subject to the satisfaction of the conditions set forth in Section 8.04 hereof, Sections 6.01(3), 6.01(4), 6.01(5), 6.01(6) (solely with respect to Restricted Subsidiaries that are Significant Subsidiaries), 6.01(7) (solely with respect to Restricted Subsidiaries that are Significant Subsidiaries) and 6.01(8) hereof shall not constitute Events of Default.

Section 8.04 Conditions to Legal or Covenant Defeasance.

The following shall be the conditions to the application of either Section 8.02 or 8.03 hereof to the outstanding Notes:

In order to exercise either Legal Defeasance or Covenant Defeasance with respect to the Notes:

(1) the Issuer must irrevocably deposit with the Trustee, in trust, for the benefit of the Holders of the Notes, cash in U.S. dollars, Government Securities, or a combination thereof, in such amounts as will be sufficient, in the opinion of a nationally recognized investment banking firm, appraisal firm or firm of independent public accountants, to pay the principal of, premium, if any, and interest due on the Notes on the stated maturity date or on the redemption date, as the case may be, of such principal, premium, if any, or interest on such Notes and the Issuer must specify whether such Notes are being defeased to maturity or to a particular redemption date;

(2) in the case of Legal Defeasance, the Issuer shall have delivered to the Trustee an Opinion of Counsel reasonably acceptable to the Trustee confirming that, subject to customary assumptions and exclusions,

(a) the Issuer has received from, or there has been published by, the United States Internal Revenue Service a ruling, or

(b) since the issuance of the Notes, there has been a change in the applicable U.S. federal income tax law,

in either case to the effect that, and based thereon such Opinion of Counsel shall confirm that, subject to customary assumptions and exclusions, the Holders of the Notes will not recognize income, gain or loss for U.S. federal income tax purposes, as applicable, as a result of such Legal Defeasance and will be subject to U.S. federal income tax on the same amounts, in the same manner and at the same times as would have been the case if such Legal Defeasance had not occurred;

(3) in the case of Covenant Defeasance, the Issuer shall have delivered to the Trustee an Opinion of Counsel reasonably acceptable to the Trustee confirming that, subject to customary assumptions and exclusions, the Holders of the Notes will not recognize income, gain or loss for U.S. federal income tax purposes as a result of such Covenant Defeasance and will be subject to such tax on the same amounts, in the same manner and at the same times as would have been the case if such Covenant Defeasance had not occurred;

(4) no Default (other than that resulting from borrowing funds to be applied to make such deposit and the granting of Liens in connection therewith) shall have occurred and be continuing on the date of such deposit;

(5) such Legal Defeasance or Covenant Defeasance shall not result in a breach or violation of, or constitute a default under any Credit Facility or any other material agreement or instrument (other than this Indenture) to which the Issuer or any Guarantor is a party or by which the Issuer or any Guarantor is bound (other than that resulting from borrowing funds to be applied to make such deposit and the granting of Liens in connection therewith);

(6) the Issuer shall have delivered to the Trustee an Officer’s Certificate stating that the deposit was not made by the Issuer with the intent of defeating, hindering, delaying or defrauding any creditors of the Issuer or any Guarantor or others; and

(7) the Issuer shall have delivered to the Trustee an Officer’s Certificate and an Opinion of Counsel (which Opinion of Counsel may be subject to customary assumptions and exclusions) each stating that all conditions precedent provided for or relating to the Legal Defeasance or the Covenant Defeasance, as the case may be, have been complied with.

Section 8.05 Deposited Money and Government Securities To Be Held in Trust; Other Miscellaneous Provisions.

Subject to Section 8.06 hereof, all money and Government Securities (including the proceeds thereof) deposited with the Trustee (or other qualifying trustee, collectively for purposes of this Section 8.05, the “Trustee”) pursuant to Section 8.04 hereof in respect of the outstanding Notes shall be held in trust and applied by the Trustee, in accordance with the provisions of such Notes and this Indenture, to the payment, either directly or through any Paying Agent (including the Issuer or a Guarantor

acting as Paying Agent) as the Trustee may determine, to the Holders of such Notes of all sums due and to become due thereon in respect of principal, premium, if any, and interest, but such money need not be segregated from other funds except to the extent required by law.

The Issuer shall pay and indemnify the Trustee against any tax, fee or other charge imposed on or assessed against the cash or Government Securities deposited pursuant to Section 8.04 hereof or the principal and interest received in respect thereof other than any such tax, fee or other charge which by law is for the account of the Holders of the outstanding Notes.

Anything in this Article VIII to the contrary notwithstanding, the Trustee shall deliver or pay to the Issuer from time to time upon the written request of the Issuer any money or Government Securities held by it as provided in Section 8.04 hereof which, in the opinion of a nationally recognized investment banking firm, appraisal firm or firm of independent public accountants expressed in a written certification thereof delivered to the Trustee (which may be the opinion delivered under Section 8.04 hereof), are in excess of the amount thereof that would then be required to be deposited to effect an equivalent Legal Defeasance or Covenant Defeasance.

Section 8.06 Repayment to Issuer.

The Trustee shall promptly, upon the written request of the Issuer, and in any event no later than five Business Days after such request, pay to the Issuer after request therefore, any excess money held with respect to the Notes at such time in excess of amounts required to pay any of the Issuer’s Obligations then owing with respect to the Notes.

Subject to any applicable abandoned property law, any money deposited with the Trustee or any Paying Agent, or then held by the Issuer, in trust for the payment of the principal of, premium, if any, or interest on any Note and remaining unclaimed for one year after such principal and premium, if any, or interest has become due and payable shall be paid to the Issuer on its written request or (if then held by the Issuer) shall be discharged from such trust; and the Holder of such Note shall thereafter look only to the Issuer for payment thereof, and all liability of the Trustee or such Paying Agent with respect to such trust money, and all liability of the Issuer as trustee thereof, shall thereupon cease.

Section 8.07 Reinstatement.

If the Trustee or Paying Agent is unable to apply any United States dollars or Government Securities in accordance with Section 8.02 or 8.03 hereof, as the case may be, by reason of any order or judgment of any court or governmental authority enjoining, restraining or otherwise prohibiting such application, then the Issuer’s obligations under this Indenture and the Notes shall be revived and reinstated as though no deposit had occurred pursuant to Section 8.02 or 8.03 hereof until such time as the Trustee or Paying Agent is permitted to apply all such money in accordance with Section 8.02 or 8.03 hereof, as the case may be; provided that, if the Issuer makes any payment of principal of, premium, if any, or interest on any Note following the reinstatement of its obligations, the Issuer shall be subrogated to the rights of the Holders of such Notes to receive such payment from the money held by the Trustee or Paying Agent.

ARTICLE IX

AMENDMENT, SUPPLEMENT AND WAIVER

Section 9.01 Without Consent of Holders of Notes.

Notwithstanding Section 9.02 hereof, the Issuer, any Guarantor (with respect to a Guarantee or this Indenture) and the Trustee may amend or supplement this Indenture and any Guarantee or Notes without the consent of any Holder:

(1) to cure any ambiguity, omission, mistake, defect or inconsistency;

(2) to provide for uncertificated Notes of such series in addition to or in place of certificated Notes;

(3) to comply with Section 5.01 hereof;

(4) to provide for the assumption of the Issuer’s or any Guarantor’s obligations to the Holders;

(5) to make any change that would provide any additional rights or benefits to the Holders or that does not materially adversely affect the rights under this Indenture of any such Holder;

(6) to add covenants for the benefit of the Holders or to surrender any right or power conferred upon the Issuer or any Guarantor;

(7) to comply with requirements of the SEC in order to effect or maintain the qualification of this Indenture under the Trust Indenture Act;

(8) to evidence and provide for the acceptance and appointment under this Indenture of a successor Trustee thereunder pursuant to the requirements thereof;

(9) to provide for the issuance of exchange notes or private exchange notes, which are identical to exchange notes except that they are not freely transferable;

(10) to add a Guarantor or release any Guarantor from its Guarantee if such release is in accordance with the terms under this Indenture;

(11) to conform the text of this Indenture, Guarantees or the Notes to any provision of the “Description of Notes” section of the Offering Memorandum to the extent that such provision in such “Description of Notes” section was intended to be a verbatim recitation of a provision of this Indenture, Guarantee or Notes, as provided in an Officer’s Certificate;

(12) to provide for the issuance of Additional Notes in accordance with the limitations set forth in this Indenture; or

(13) to make any amendment to the provisions of this Indenture relating to the transfer and legending of Notes as permitted by this Indenture, including, without limitation, to facilitate the issuance and administration of the Notes; provided, however, that (i) compliance with this Indenture as so amended would not result in Notes being transferred in violation of the Securities

Act or any applicable securities law and (ii) such amendment does not materially and adversely affect the rights of Holders to transfer Notes;

Upon the written request of the Issuer accompanied by a resolution of the Issuer’s board of directors authorizing the execution of any such amended or supplemental indenture, and upon receipt by the Trustee of the documents described in Sections 7.02 and 9.06, the Trustee shall join with the Issuer and the Guarantors in the execution of any amended or supplemental indenture authorized or permitted by the terms of this Indenture and to make any further appropriate agreements and stipulations that may be therein contained, but the Trustee shall not be obligated to enter into such amended or supplemental indenture that affects its own rights, duties or immunities under this Indenture or otherwise.

Section 9.02 With Consent of Holders of Notes.

Except as provided below in this Section 9.02, the Issuer and the Trustee may amend or supplement this Indenture, the Notes and the Guarantees with the consent of the Holders of at least a majority in principal amount of the Notes then outstanding voting as a single class (including, without limitation, consents obtained in connection with a tender offer or exchange offer for, or purchase of, the Notes), and, subject to Sections 6.04 and 6.07 hereof, any existing Default or Event of Default (other than a Default or Event of Default in the payment of the principal of, premium or interest on the Notes, except a payment default resulting from an acceleration that has been rescinded) or compliance with any provision of this Indenture, the Guarantees or the Notes may be waived with the consent of the Holders of a majority in principal amount of the then outstanding Notes voting as a single class (including consents obtained in connection with a tender offer or exchange offer for, or purchase of, the Notes). Section 2.08 hereof and Section 2.09 hereof shall determine which Notes are considered to be “outstanding” for the purposes of this Section 9.02.

Upon the written request of the Issuer accompanied by a resolution of the Issuer’s board of directors authorizing the execution of any such amended or supplemental indenture, and upon the filing with the Trustee of evidence satisfactory to the Trustee of the consent of the Holders of Notes as aforesaid, and upon receipt by the Trustee of the documents described in Sections 7.02 and 9.06 hereof, the Trustee shall join with the Issuer in the execution of such amended or supplemental indenture unless such amended or supplemental indenture directly affects the Trustee’s own rights, duties or immunities under this Indenture or otherwise, in which case the Trustee may in its discretion, but shall not be obligated to, enter into such amended or supplemental indenture.

The consent of the Holders is not necessary under this Indenture to approve the particular form of any proposed amendment. It is sufficient if such consent approves the substance of the proposed amendment.

After an amendment, supplement or waiver under this Section 9.02 becomes effective, the Issuer shall send to the Holders of Notes affected thereby a notice briefly describing the amendment, supplement or waiver. Any failure of the Issuer to send such notice, or any defect therein, shall not, however, in any way impair or affect the validity of any such amended or supplemental indenture or waiver.

Without the consent of each affected Holder of Notes, an amendment or waiver under this Section 9.02 may not (with respect to any Notes held by a non-consenting Holder):

(1) reduce the principal amount of such Notes whose Holders must consent to an amendment, supplement or waiver;

(2) reduce the principal of or change the fixed final maturity of any such Note or alter or waive the provisions with respect to the redemption of such Notes (other than provisions relating to Section 3.09, Section 4.10 and Section 4.14);

(3) reduce the rate of or change the time for payment of interest on any Note;

(4) waive a Default in the payment of principal of or premium, if any, or interest on the Notes, except a rescission of acceleration of the Notes by the Holders of at least a majority in aggregate principal amount of the Notes and a waiver of the payment default that resulted from such acceleration;

(5) make any Note payable in currency other than that stated therein;

(6) make any change in the provisions of this Indenture relating to the rights of Holders to receive payments of principal of or premium, if any, or interest on the Notes;

(7) make any change to this paragraph of Section 9.02;

(8) impair the right of any Holder to receive payment of principal of, or interest on such Holder’s Notes on or after the due dates therefor or to institute suit for the enforcement of any payment on or with respect to such Holder’s Notes;

(9) make any change to or modify the ranking of the Notes that would adversely affect the Holders; or

(10) except as expressly permitted by this Indenture, modify the Guarantee of any Significant Subsidiary in any manner adverse to the Holders of the Notes.

Section 9.03 Compliance with Trust Indenture Act.

Every amendment or supplement to this Indenture or the Notes shall be set forth in an amended or supplemental indenture that complies with the Trust Indenture Act as then in effect.

Section 9.04 Revocation and Effect of Consents.

Until an amendment, supplement or waiver becomes effective, a consent to it by a Holder of a Note is a continuing consent by the Holder of a Note and every subsequent Holder of a Note or portion of a Note that evidences the same debt as the consenting Holder’s Note, even if notation of the consent is not made on any Note. However, any such Holder of a Note or subsequent Holder of a Note may revoke the consent as to its Note if the Trustee receives written notice of revocation before the date the waiver, supplement or amendment becomes effective. An amendment, supplement or waiver becomes effective in accordance with its terms and thereafter binds every Holder.

The Issuer may, but shall not be obligated to, fix a record date for the purpose of determining the Holders entitled to consent to any amendment, supplement, or waiver. If a record date is fixed, then, notwithstanding the preceding paragraph, those Persons who were Holders at such record date (or their duly designated proxies), and only such Persons, shall be entitled to consent to such amendment, supplement, or waiver or to revoke any consent previously given, whether or not such Persons continue to be Holders after such record date. No such consent shall be valid or effective for more than 120 days after such record date unless the consent of the requisite number of Holders has been obtained.

Section 9.05 Notation on or Exchange of Notes.

The Trustee may place an appropriate notation about an amendment, supplement or waiver on any Note thereafter authenticated. The Issuer in exchange for all Notes may issue and the Trustee shall, upon receipt of an Authentication Order, authenticate new Notes that reflect the amendment, supplement or waiver.

Failure to make the appropriate notation or issue a new Note shall not affect the validity and effect of such amendment, supplement or waiver.

Section 9.06 Trustee To Sign Amendments, etc.

The Trustee shall sign any amendment, supplement or waiver authorized pursuant to this Article 9 if the amendment, supplement or waiver does not adversely affect the rights, duties, liabilities or immunities of the Trustee. The Issuer may not sign an amendment, supplement or waiver until its board of directors approves it. In executing any amendment, supplement or waiver, the Trustee shall be provided with and (subject to Section 7.01 hereof) shall be fully protected in conclusively relying upon, in addition to the documents required by Section 12.04 hereof, an Officer’s Certificate and an Opinion of Counsel, each stating that the execution of such amended or supplemental indenture is authorized or permitted by this Indenture and that such amendment, supplement or waiver is the legal, valid and binding obligation of the Issuer and any Guarantors party thereto, enforceable against them in accordance with its terms, subject to customary exceptions, and complies with the provisions hereof (including Section 9.03). Notwithstanding the foregoing, an Officer’s Certificate and an Opinion of Counsel shall not be required in connection with the addition of any Guarantor under this Indenture on the Issue Date upon execution and delivery by such Guarantor and the Trustee of a Supplemental Indenture to this Indenture.

ARTICLE X

GUARANTEES

Section 10.01 Guarantee.

Subject to this Article 10, each of the Guarantors hereby, jointly and severally, fully and unconditionally guarantees to each Holder of a Note authenticated and delivered by the Trustee and to the Trustee and its successors and assigns, irrespective of the validity and enforceability of this Indenture, the Notes or the obligations of the Issuer hereunder or thereunder, that: (a) the principal of, interest and premium, if any, on the Notes, subject to any applicable grace period, shall be promptly paid in full when due, whether at maturity, by acceleration, redemption or otherwise, and interest on the overdue principal of and interest on the Notes, if any, to the extent lawful, and all other Obligations of the Issuer to the Holders or the Trustee hereunder or thereunder shall be promptly paid in full or performed, all in accordance with the terms hereof and thereof; and (b) in case of any extension of time of payment or renewal of any Notes or any of such other obligations, that same shall be promptly paid in full when due or performed in accordance with the terms of the extension or renewal, whether at stated maturity, by acceleration or otherwise. Failing payment by the Issuer when due of any amount so guaranteed or any performance so guaranteed for whatever reason, the Guarantors shall be jointly and severally obligated to pay the same immediately. Each Guarantor agrees that this is a guarantee of payment and not a guarantee of collection.

The Guarantors hereby agree that their obligations hereunder shall be unconditional, irrespective of the validity, regularity or enforceability of the Notes or this Indenture, the absence of any action to enforce the same, any waiver or consent by any Holder of the Notes with respect to any provisions

hereof or thereof, the recovery of any judgment against the Issuer, any action to enforce the same or any other circumstance which might otherwise constitute a legal or equitable discharge or defense of a guarantor (other than payment in full of all of the Obligations of the Issuer hereunder and under the Notes). Each Guarantor hereby waives (to the extent permitted by law) diligence, presentment, demand of payment, filing of claims with a court in the event of insolvency or bankruptcy of the Issuer, any right to require a proceeding first against the Issuer, protest, notice and all demands whatsoever and covenants that this Guarantee shall not be discharged except by complete performance of the obligations contained in the Notes and this Indenture or by release in accordance with the provisions of this Indenture.

Each Guarantor also agrees to pay any and all costs and expenses (including reasonable attorneys’ and agents’ fees and expenses) incurred by the Trustee or any Holder in enforcing any rights under this Section 10.01.

If any Holder or the Trustee is required by any court or otherwise to return to the Issuer, the Guarantors or any custodian, trustee, liquidator or other similar official acting in relation to either the Issuer or the Guarantors, any amount paid either to the Trustee or such Holder, this Guarantee, to the extent theretofore discharged, shall be reinstated in full force and effect.

Each Guarantor agrees that, as between the Guarantors, on the one hand, and the Holders and the Trustee, on the other hand, (x) the maturity of the obligations guaranteed hereby may be accelerated as provided in Article 6 hereof for the purposes of this Guarantee, notwithstanding any stay, injunction or other prohibition preventing such acceleration in respect of the obligations guaranteed hereby, and (y) in the event of any declaration of acceleration of such obligations as provided in Article 6 hereof, such obligations (whether or not due and payable) shall forthwith become due and payable by the Guarantors for the purpose of this Guarantee. The Guarantors shall have the right to seek contribution from any non-paying Guarantor so long as the exercise of such right does not impair the rights of the Holders under the Guarantees.

Each Guarantee shall remain in full force and effect and continue to be effective should any petition be filed by or against the Issuer for liquidation, reorganization, should the Issuer become insolvent or make an assignment for the benefit of creditors or should a receiver or trustee be appointed for all or any significant part of the Issuer’s assets, and shall, to the fullest extent permitted by law, continue to be effective or be reinstated, as the case may be, if at any time payment and performance of the Notes are, pursuant to applicable law, rescinded or reduced in amount, or must otherwise be restored or returned by any obligee on the Notes or Guarantees, whether as a “voidable preference,” “fraudulent transfer” or otherwise, all as though such payment or performance had not been made. In the event that any payment or any part thereof, is rescinded, reduced, restored or returned, the Notes shall, to the fullest extent permitted by law, be reinstated and deemed reduced only by such amount paid and not so rescinded, reduced, restored or returned.

In case any provision of any Guarantee shall be invalid, illegal or unenforceable, the validity, legality, and enforceability of the remaining provisions shall not in any way be affected or impaired thereby.

The Guarantee issued by any Guarantor shall be a general unsecured obligation of such Guarantor and shall rank equally in right of payment to all existing and future Senior Indebtedness of such Guarantor, if any.

Each payment to be made by a Guarantor in respect of its Guarantee shall be made without set-off, counterclaim, reduction or diminution of any kind or nature.

Section 10.02 Limitation on Guarantor Liability.

Each Guarantor, and by its acceptance of Notes, each Holder, hereby confirms that it is the intention of all such parties that the Guarantee of such Guarantor not constitute a fraudulent transfer or conveyance for purposes of Bankruptcy Law, the Uniform Fraudulent Conveyance Act, the Uniform Fraudulent Transfer Act or any similar federal or state law to the extent applicable to any Guarantee. To effectuate the foregoing intention, the Trustee, the Holders and the Guarantors hereby irrevocably agree that the obligations of each Guarantor shall be limited to the maximum amount as will, after giving effect to such maximum amount and all other contingent and fixed liabilities of such Guarantor that are relevant under such laws and after giving effect to any collections from, rights to receive contribution from or payments made by or on behalf of any other Guarantor in respect of the obligations of such other Guarantor under this Article 10, result in the obligations of such Guarantor under its Guarantee not constituting a fraudulent conveyance or fraudulent transfer under applicable law. Each Guarantor that makes a payment under its Guarantee shall be entitled upon payment in full of all guaranteed obligations under this Indenture to a contribution from each other Guarantor in an amount equal to such other Guarantor’s pro rata portion of such payment based on the respective net assets of all the Guarantors at the time of such payment determined in accordance with GAAP.

Section 10.03 Execution and Delivery.

To evidence its Guarantee set forth in Section 10.01 hereof, each Guarantor hereby agrees that this Indenture shall be executed on behalf of such Guarantor by an authorized officer.

Each Guarantor hereby agrees that its Guarantee set forth in Section 10.01 hereof shall remain in full force and effect notwithstanding the absence of the endorsement of any notation of such Guarantee on the Notes.

If an officer of a Guarantor whose signature is on this Indenture no longer holds that office at the time the Trustee authenticates the Note, the Guarantee of such Guarantor shall be valid nevertheless.

The delivery of any Note by the Trustee, after the authentication thereof hereunder, shall constitute due delivery of the Guarantee set forth in this Indenture on behalf of the Guarantors.

If required by Section 4.15 hereof, the Issuer shall cause any newly created or acquired Restricted Subsidiary to comply with the provisions of Section 4.15 hereof and this Article 10, to the extent applicable.

Section 10.04 Subrogation.

Each Guarantor shall be subrogated to all rights of Holders of Notes against the Issuer in respect of any amounts paid by any Guarantor pursuant to the provisions of Section 10.01 hereof; provided that no Guarantor shall be entitled to enforce or receive any payments arising out of, or based upon, such right of subrogation until all amounts then due and payable by the Issuer under this Indenture or the Notes shall have been paid in full.

Section 10.05 Benefits Acknowledged.

Each Guarantor acknowledges that it will receive direct and indirect benefits from the financing arrangements contemplated by this Indenture and that the guarantee and waivers made by it pursuant to its Guarantee are knowingly made in contemplation of such benefits.

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Section 10.06 Release of Guarantees.

A Guarantee by any Guarantor other than INC Research Intermediate shall be automatically and unconditionally released and discharged upon:

(1) (A) any sale, exchange or transfer (by merger or otherwise) of (i) the Capital Stock of such Guarantor (including any sale, exchange or transfer), after which the applicable Guarantor is no longer a Restricted Subsidiary or (ii) all or substantially all the assets of such Guarantor, provided that such sale, exchange or transfer of Capital Stock or assets is made in compliance with the applicable provisions of this Indenture;

(B) the release or discharge of the Guarantee by such Guarantor of the Senior Secured Credit Facility or the release or discharge of the Indebtedness that pursuant to Section 4.15 resulted in the creation of such Guarantee;

(D) the Issuer exercising their Legal Defeasance option in accordance with Section 8.02 hereof or the Issuer’s obligations under this Indenture being discharged in accordance with the terms of this Indenture; and

(2) the Issuer delivering to the Trustee an Officer’s Certificate and an Opinion of Counsel, each stating that all conditions precedent provided for in this Indenture relating to such transaction have been complied with.

The Guarantee of INC Research Intermediate or any other direct or indirect parent company may be released at any time.

ARTICLE XI

SATISFACTION AND DISCHARGE

Section 11.01 Satisfaction and Discharge.

This Indenture will be discharged and will cease to be of further effect as to all Notes, when either:

(1) all Notes theretofore authenticated and delivered, except lost, stolen or destroyed Notes which have been replaced or paid and Notes for whose payment money has theretofore been deposited in trust, have been delivered to the Trustee for cancellation; or

(2) (A) all Notes not theretofore delivered to the Trustee for cancellation have become due and payable by reason of the making of a notice of redemption or otherwise, will become due and payable within one year or are to be called for redemption and redeemed within one year under arrangements satisfactory to the Trustee for the giving of notice of redemption by the Trustee in the name, and at the expense, of the Issuer and the Issuer or any Guarantor have irrevocably deposited or caused to be deposited with the Trustee as trust funds in trust solely for the benefit of the Holders of the Notes, cash in U.S. dollars, Government Securities, or a combination thereof, in such amounts as will be sufficient without consideration of any reinvestment of interest to pay and discharge the entire indebtedness on the Notes not theretofore delivered to the

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Trustee for cancellation for principal, premium, if any, and accrued interest to the date of maturity or redemption, as the case may be;

(B) the Issuer has paid or caused to be paid all sums payable by it under this Indenture; and

(C) the Issuer has delivered irrevocable instructions to the Trustee to apply the deposited money toward the payment of the Notes at maturity or the Redemption Date, as the case may be.

In addition, the Issuer must deliver an Officer’s Certificate and an Opinion of Counsel to the Trustee stating that all conditions precedent to satisfaction and discharge have been satisfied.

Notwithstanding the satisfaction and discharge of this Indenture, if money shall have been deposited with the Trustee pursuant to subclause (A) of clause (2) of this Section 11.01, the provisions of Section 11.02 and Section 8.06 hereof shall survive such satisfaction and discharge.

Section 11.02 Application of Trust Money.

Subject to the provisions of Section 8.06 hereof, all money deposited with the Trustee pursuant to Section 11.01 hereof shall be held in trust and applied by it, in accordance with the provisions of the Notes and this Indenture, to the payment, either directly or through any Paying Agent (including the Issuer acting as its own Paying Agent) as the Trustee may determine, to the Persons entitled thereto, of the principal (and premium, if any) and interest for whose payment such money has been deposited with the Trustee; but such money need not be segregated from other funds except to the extent required by law.

If the Trustee or Paying Agent is unable to apply any money or Government Securities in accordance with Section 11.01 hereof by reason of any legal proceeding or by reason of any order or judgment of any court or governmental authority enjoining, restraining or otherwise prohibiting such application, the Issuer’s and any Guarantor’s obligations under this Indenture and the Notes shall be revived and reinstated as though no deposit had occurred pursuant to Section 11.01 hereof; provided that if the Issuer has made any payment of principal of, premium, if any, or interest on any Notes because of the reinstatement of its obligations, the Issuer shall be subrogated to the rights of the Holders of such Notes to receive such payment from the money or Government Securities held by the Trustee or Paying Agent.

ARTICLE XII

MISCELLANEOUS

Section 12.01 Trust Indenture Act Controls.

If any provision of this Indenture limits, qualifies or conflicts with the duties imposed by Trust Indenture Act Section 318(c), the imposed duties shall control.

Section 12.02 Notices.

Any notice or communication by the Issuer, any Guarantor or the Trustee to the others is duly given if in writing and delivered in person or mailed by first-class mail (registered or certified, return receipt requested), electronic delivery (in PDF format), fax or overnight air courier guaranteeing next day delivery, to the others’ address:

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If to the Issuer and/or any Guarantor:

c/o INC Research, LLC
0000 Xxxxxxxxx Xxxxx, Xxxxx 000
Xxxxxxx, XX 00000-0000

Attention: General Counsel
Fax: 000-000-0000

with a copies to:

Weil, Gotshal & Xxxxxx
000 Xxxxx Xxxxxx
Xxx Xxxx, XX 00000
Attention: Xxxxx Xxxxxxx
Fax: 000-000-0000

If to the Trustee:

Wilmington Trust, National Association

000 Xxxxx Xxxx, Xxxxx 000
Xxxxxxxx, XX 00000

Attention: Corporate Trust Services -
Administrator for INC Research, LLC

Fax: 000-000-0000

The Issuer, any Guarantor or the Trustee, by notice to the others, may designate additional or different addresses for subsequent notices or communications.

All notices and communications (other than those sent to Holders) shall be deemed to have been duly given: as of the date so delivered if delivered electronically, in PDF format; at the time delivered by hand, if personally delivered; five calendar days after being deposited in the mail, postage prepaid, if mailed by first-class mail; when receipt acknowledged, if faxed; and the next Business Day after timely delivery to the courier, if sent by overnight air courier guaranteeing next day delivery; provided that any notice or communication delivered to the Trustee shall be deemed effective upon actual receipt thereof.

Any notice or communication to a Holder shall be sent electronically, mailed by first-class mail, certified or registered, return receipt requested, or by overnight air courier guaranteeing next day delivery to its address shown on the register kept by the Registrar. Any notice or communication shall also be so mailed to any Person described in Trust Indenture Act Section 313(c), to the extent required by the Trust Indenture Act. Failure to mail a notice or communication to a Holder or any defect in it shall not affect its sufficiency with respect to other Holders.

If a notice or communication is mailed or otherwise delivered in the manner provided above within the time prescribed, such notice or communication shall be deemed duly given, whether or not the addressee receives it.

The Trustee agrees to accept and act upon facsimile or electronically sent (in PDF format) transmission of written instructions and/or directions pursuant to this Indenture given by the Issuer,

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provided, however that: (i) if requested, such Issuer, subsequent to such facsimile transmission of written instructions and/or directions, shall provide the originally executed instructions and/or directions to the Trustee in a timely manner and (ii) such originally executed instructions and/or directions shall be signed by an Authorized Officer of the Issuer.

If the Issuer sends a notice or communication to Holders, it shall send a copy to the Trustee and each Agent at the same time.

Section 12.03 Communication by Holders of Notes with Other Holders of Notes.

Holders may communicate pursuant to Trust Indenture Act Section 312(b) with other Holders with respect to their rights under this Indenture or the Notes. The Issuer, the Trustee, the Registrar and anyone else shall have the protection of Trust Indenture Act Section 312(c).

Section 12.04 Certificate and Opinion as to Conditions Precedent.

Upon any request or application by the Issuer or any of the Guarantors to the Trustee to take any action under this Indenture, the Issuer or such Guarantor, as the case may be, shall furnish to the Trustee:

(a) An Officer’s Certificate in form and substance reasonably satisfactory to the Trustee (which shall include the statements set forth in Section 12.05 hereof) stating that, in the opinion of the signers, all conditions precedent and covenants, if any, provided for in this Indenture relating to the proposed action have been satisfied; and

(b) An Opinion of Counsel in form and substance reasonably satisfactory to the Trustee (which shall include the statements set forth in Section 12.05 hereof) stating that, in the opinion of such counsel, all such conditions precedent and covenants have been satisfied.

Section 12.05 Statements Required in Certificate or Opinion.

Each certificate or opinion with respect to compliance with a condition or covenant provided for in this Indenture (other than a certificate provided pursuant to Section 4.04 hereof or Trust Indenture Act Section 314(a)(4)) shall comply with the provisions of Trust Indenture Act Section 314(e) and shall include, as required by Section 314(e):

(a) a statement that the Person making such certificate or opinion has read such covenant or condition;

(b) a brief statement as to the nature and scope of the examination or investigation upon which the statements or opinions contained in such certificate or opinion are based;

(c) a statement that, in the opinion of such Person, he or she has made such examination or investigation as is necessary to enable him to express an informed opinion as to whether or not such covenant or condition has been complied with; and

(d) a statement as to whether or not, in the opinion of such Person, such condition or covenant has been complied with.

With respect to matters of fact, an Opinion of Counsel may rely on an Officers’ Certificate, certificates of public officials or reports or opinions of experts.

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Section 12.06 Rules by Trustee and Agents.

The Trustee may make reasonable rules for action by or at a meeting of Holders. The Registrar or Paying Agent may make reasonable rules and set reasonable requirements for its functions.

Section 12.07 No Personal Liability of Directors, Officers, Employees and Stockholders, etc..

No past, present or future director, officer, employee, incorporator or stockholder, member or limited partner of the Issuer or any Restricted Subsidiary or any of their direct or indirect parent companies shall have any liability for any obligations of the Issuer or the Guarantors under the Notes, the Guarantees or this Indenture or for any claim based on, in respect of, or by reason of such obligations or their creation. Each Holder by accepting Notes waives and releases all such liability. The waiver and release are part of the consideration for issuance of the Notes.

Section 12.08 Governing Law.

THIS INDENTURE, THE NOTES AND ANY GUARANTEE WILL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK WITHOUT REGARD TO CONFLICTS OF LAWS PRINCIPLES THEREOF.

Section 12.09 Waiver of Jury Trial.

THE ISSUER, THE GUARANTORS AND THE TRUSTEE HEREBY IRREVOCABLY WAIVE, TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, ANY AND ALL RIGHT TO TRIAL BY JURY IN ANY LEGAL PROCEEDING ARISING OUT OF OR RELATING TO THIS INDENTURE, THE NOTES OR THE TRANSACTIONS CONTEMPLATED HEREBY.

Section 12.10 Force Majeure.

In no event shall the Trustee be responsible or liable for any failure or delay in the performance of its obligations under this Indenture arising out of or caused by, directly or indirectly, forces beyond its reasonable control, including, without limitation, strikes, work stoppages, accidents, acts of war or terrorism, civil or military disturbances, nuclear or natural catastrophes or acts of God, and interruptions, loss or malfunctions of utilities, communications or computer (software or hardware) services.

Section 12.11 No Adverse Interpretation of Other Agreements.

This Indenture may not be used to interpret any other indenture, loan or debt agreement of the Issuer or the Restricted Subsidiaries or of any other Person. Any such indenture, loan or debt agreement may not be used to interpret this Indenture.

Section 12.12 Successors.

All agreements of the Issuer in this Indenture and the Notes shall bind their successors. All agreements of the Trustee in this Indenture shall bind its successors. All agreements of each Guarantor in this Indenture shall bind its successors, except as otherwise provided in Section 10.06 hereof.

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Section 12.13 Severability.

In case any provision in this Indenture or in the Notes shall be invalid, illegal or unenforceable, the validity, legality and enforceability of the remaining provisions shall not in any way be affected or impaired thereby.

Section 12.14 Counterpart Originals.

The parties may sign any number of copies of this Indenture which, when taken together, shall constitute one instrument. Each signed copy shall be an original, but all of them together represent the same agreement. The exchange of copies of this Indenture and of signature pages by facsimile or PDF transmission shall constitute effective execution and delivery of this Indenture as to the parties hereto and may be used in lieu of the original Indenture for all purposes. Signatures of the parties hereto transmitted by facsimile or PDF shall be deemed to be their original signatures for all purposes.

Section 12.15 Table of Contents, Headings, etc.

The Table of Contents, Cross-Reference Table and headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and shall in no way modify or restrict any of the terms or provisions hereof.

Section 12.16 U.S.A. Patriot Act.

The parties hereto acknowledge that in accordance with Section 326 of the U.S.A. Patriot Act, the Trustee, like all financial institutions and in order to help fight the funding of terrorism and money laundering, is required to obtain, verify, and record information that identifies each person or legal entity that establishes a relationship or opens an account with the Trustee. The parties to this Indenture agree that they will provide the Trustee with such information as it may request in order for the Trustee to satisfy the requirements of the U.S.A. Patriot Act.

[Signatures on following page]

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	INC RESEARCH, LLC,
	as Issuer


	By:	/s/ Xxxxx Xxxx
	Name: Xxxxx Xxxx
	Title: President and Chief Executive Officer


	INC RESEARCH INTERMEDIATE, LLC,
	as Guarantor


	By:	/s/ Xxxxx Xxxx
	Name: Xxxxx Xxxx
	Title: President and Chief Executive Officer


	TRIANGLE TWO ACQUISITION CORP.,
	as Guarantor


	By:	/s/ Xxxxx Xxxx
	Name: Xxxxx Xxxx
	Title: President and Chief Executive Officer

Signature Page Indenture

WILMINGTON TRUST, NATIONAL ASSOCIATION, as Trustee


By:	/s/ Xxxxxx X. X’Xxxxxxx
	Name:	Xxxxxx X. X’Xxxxxxx
	Title:	Vice President

Signature Page Indenture

EXHIBIT A

[Face of Note]

[Insert the Global Note Legend, if applicable pursuant to the provisions of the Indenture]

[Insert the Private Placement Legend, if applicable pursuant to the provisions of the Indenture]

A-1

CUSIP [ ]

ISIN [ ](1)

[RULE 144A][REGULATION S] GLOBAL NOTE
representing up to
$[ ]

11.5% Senior Notes due 2019

No.

[$ ]

INC RESEARCH, LLC

promises to pay to CEDE & CO. or registered assigns, the principal sum [set forth on the Schedule of Exchanges of Interests in the Global Note attached hereto] [of United States Dollars] on July 15, 2019.

Interest Payment Dates: July 15 and January 15

Record Dates: July 1 and January 1

(1) Rule 144A Note CUSIP: 44981U AA2

Rule 144A Note ISIN: US44981UAA25

Regulation S Note CUSIP: X00000XX0

Regulation S Note ISIN: USU45208AA06

A-2

IN WITNESS HEREOF, the Issuer has caused this instrument to be duly executed.

	INC RESEARCH, LLC


	By:
		Name:
		Title:

This is one of the Notes referred to in the within-mentioned Indenture:

Dated: July 12, 2011

	WILMINGTON TRUST, NATIONAL ASSOCIATION, as Trustee


	By:
		Authorized Signatory

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[Back of Note]

11.5% Senior Notes due 2019

Capitalized terms used herein shall have the meanings assigned to them in the Indenture referred to below unless otherwise indicated.

1. INTEREST. INC Research, LLC, a Delaware corporation (the “Issuer”), promises to pay interest on the principal amount of this Note at 11.5% per annum from July 12, 2011 until maturity. The Issuer will pay interest semi-annually in arrears on July 15 and January 15 of each year, or if any such day is not a Business Day, on the next succeeding Business Day (each, an “Interest Payment Date”). Interest on the Notes will accrue from the most recent date to which interest has been paid or, if no interest has been paid, from the date of issuance; provided that the first Interest Payment Date shall be January 15, 2012. The Issuer shall pay interest (including post-petition interest in any proceeding under any Bankruptcy Law) on overdue principal at the rate equal to the then applicable interest rate on the Notes to the extent lawful; and shall pay interest (including post-petition interest in any proceeding under any Bankruptcy Law) on overdue installments of interest (without regard to any applicable grace period) at the same rate to the extent lawful. Interest will be computed on the basis of a 360-day year comprised of twelve 30-day months.

2. METHOD OF PAYMENT. The Issuer will pay interest on the Notes to the Persons who are registered Holders of Notes at the close of business on the July 1 or January 1 (whether or not a Business Day), as the case may be, next preceding the Interest Payment Date, even if such Notes are canceled after such record date and on or before such Interest Payment Date, except as provided in Section 2.12 of the Indenture with respect to defaulted interest. Payment of interest may be made by check mailed to the Holders at their addresses set forth in the register of Holders, provided that payment by wire transfer of immediately available funds will be required with respect to principal of and interest and premium on, all Global Notes and all other Notes the Holders of which shall have provided wire transfer instructions to the Issuer or the Paying Agent at least five Business Days in advance of the applicable Interest Payment Date. Such payment shall be in such coin or currency of the United States of America as at the time of payment is legal tender for payment of public and private debts.

3. PAYING AGENT AND REGISTRAR. Initially, Wilmington Trust, National Association, the Trustee under the Indenture, will act as Paying Agent and Registrar. The Issuer may change any Paying Agent or Registrar without notice to the Holders. The Issuer or any of its Subsidiaries may act in any such capacity.

4. INDENTURE. The Issuer issued the Notes under an Indenture, dated as of July 12, 2011, as may be amended, restated, supplemented or otherwise modified from time to time (the “Indenture”), between INC Research, LLC, the guarantors party thereto and the Trustee. This Note is one of a duly authorized issue of notes of the Issuer designated as its 11.5% Senior Notes due 2019. The Issuer shall be entitled to issue Additional Notes pursuant to the Indenture. The terms of the Notes include those stated in the Indenture and those made part of the Indenture by reference to the Trust Indenture Act of 1939, as amended (the “Trust Indenture Act”). The Notes are subject to all such terms, and Holders are referred to the Indenture and the Trust Indenture Act for a statement of such terms. To the extent any provision of this Note conflicts with the provisions of the Indenture, the provisions of the Indenture shall govern and be controlling.

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5. OPTIONAL REDEMPTION.

(a) Except as described below under clauses 5(c) and 5(d) hereof, the Notes will not be redeemable at the Issuer’s option before July 15, 2015.

(b) On and after July 15, 2015, the Issuer may redeem the Notes, in whole or in part, upon not less than 30 nor more than 60 days’ prior notice sent by first-class mail or by electronic delivery to each Holder of Notes to be redeemed at such Holder’s registered address, at the redemption prices (expressed as percentages of principal amount of the Notes to be redeemed) set forth below, plus accrued and unpaid interest thereon to, but not including, the applicable date of redemption (the “Redemption Date”), subject to the right of Holders of Notes of record on the relevant Record Date to receive interest due on the relevant Interest Payment Date, if redeemed during the twelve-month period beginning on July 15 of each of the years indicated below:

Year	Percentage
2015	105.750	%
2016	102.875	%
2017 and thereafter	100.000	%

(c) At any time prior to July 15, 2015, the Issuer may redeem all or a part of the Notes, upon not less than 30 nor more than 60 days’ prior notice sent by first-class mail or by electronic delivery to each Holder of Notes to be redeemed at such Holder’s registered address, at a redemption price equal to 100% of the principal amount of the Notes redeemed plus the Applicable Premium as of, and accrued and unpaid interest to, but not including, the Redemption Date, subject to the rights of Holders of Notes on the relevant Record Date to receive interest due on the relevant Interest Payment Date

(d) Until July 15, 2014, the Issuer may, at its option, on one or more occasions, redeem up to 35% of the aggregate principal amount of Notes at a redemption price equal to 111.5% of the aggregate principal amount thereof, plus accrued and unpaid interest thereon, to, but not including, the applicable Redemption Date, subject to the right of Holders of Notes of record on the relevant record date to receive interest due on the relevant interest payment date, with the net cash proceeds of one or more Equity Offerings; provided that at least 65% of the sum of the original aggregate principal amount of Notes issued under this Indenture and the original principal amount of any Additional Notes issued under the Indenture after the Issue Date remains outstanding immediately after the occurrence of each such redemption; provided further that each such redemption occurs within 90 days of the date of closing of each such Equity Offering. Notice of any redemption upon any Equity Offering may be given prior to the redemption thereof, and any such redemption or notice may, at the Issuer’s discretion, be subject to one or more conditions