AMENDED AND RESTATED CREDIT AGREEMENT made as of December 14, 2011 among ALTALINK INVESTMENT MANAGEMENT LTD., in its capacity as general partner of ALTALINK INVESTMENTS, L.P., as Borrower, - and- ALTALINK INVESTMENT MANAGEMENT LTD., as General...

EXHIBIT 10.21

Execution Version

AMENDED AND RESTATED CREDIT AGREEMENT

made as of December 14, 2011

among

ALTALINK INVESTMENT MANAGEMENT LTD.,

in its capacity as general partner of

ALTALINK INVESTMENTS, L.P.,

as Borrower,

- and-

ALTALINK INVESTMENT MANAGEMENT LTD.,

as General Partner,

- and-

ROYAL BANK OF CANADA,

as Administrative Agent of the Lenders, and as Lender,

- and-

RBC CAPITAL MARKETS,

as Sole Lead Arranger and Sole Bookrunner

- and-

BANK OF MONTREAL, as Documentation Agent

- and-

ALL OTHER LENDERS WHICH BECOME

PARTIES HEREUNDER,

as Lenders

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

TABLE OF CONTENTS
		Page
Article 1 INTERPRETATION		2
1.1	Definitions	2
1.2	References	23
1.3	Headings	23
1.4	Included Words	24
1.5	Accounting Terms	24
1.6	Time	24
1.7	Currency	24
1.8	Certificates and Opinions	24
1.9	Amendment and Restatement; No Novation	25
1.10	Schedules	25
Article 2 AMOUNT AND TERMS OF THE CREDIT FACILITY		26
2.1	Credit Facility	26
2.2	Cancellation	26
2.3	Use of Proceeds	26
2.4	Particulars of Borrowing	26
2.5	Borrowing Notice	27
2.6	Books of Account	27
2.7	Co-ordination of Prime Rate and U.S. Base Rate Loans	28
2.8	Bankers' Acceptance	28
2.9	LIBOR Loans	32
2.10	Safekeeping of Drafts	34
2.11	Certification to Third Parties	34
Article 3 DOCUMENTARY CREDITS		34
3.1	Documentary Credits	34
3.2	Procedure for Issue	34
3.3	Form of Documentary Credits	35
3.4	Reimbursements of Amounts Drawn	35
3.5	Documentary Credit Participation	35
3.6	Risk of Documentary Credit	36
3.7	Fees	37
3.8	Repayments	37
3.9	Documentary Credits Outstanding Upon Default	38
Article 4 INTEREST		38
4.1	Interest on Loans	38
4.2	LIBOR Interest Period Determination	39
4.3	Interest on Overdue Amounts	40
4.4	Other Interest	40
4.5	Interest Act (Canada)	40
4.6	Deemed Reinvestment Principle	40
4.7	Maximum Return	40
Article 5 FEES		40
5.1	Acceptance Fees	40
5.2	Commitment Fee	41
5.3	Basis of Calculation of Fees	41
Article 6 PAYMENT		41

6.1	Voluntary Repayment of Outstanding Accommodation	41
6.2	Repayment on Maturity Date and Extension	43
6.3	Excess Accommodation	43
6.4	Illegality	44
Article 7 PAYMENTS AND IDEMNITIES		44
7.1	Payments on Non-Business Days	44
7.2	Method and Place of Payment	44
7.3	Net Payments	44
7.4	Agent May Debit Account	45
7.5	Currency of Payment	45
7.6	General Indemnity	45
7.7	Early Termination of LIBOR Interest Period	46
7.8	Outstanding Bankers' Acceptances	46
Article 8 SECURITY		47
8.1	Security	47
Article 9 REPRESENTATIONS AND WARRANTIES		47
9.1	Representations and Warranties	47
9.2	Survival of Representations and Warranties	52
Article 10 COVENANTS		52
10.1	Reporting Covenants	52
10.2	Payments Under This Agreement and Loan Documents	53
10.3	Proceeds	53
10.4	Inspection of Property, Books and Records, Discussion	53
10.5	Notices. The Borrower shall promptly give notice to the Agent of	53
10.6	Disbursements under Master Trust Indenture	54
10.7	Cure Defects	54
10.8	Carrying on Business	54
10.9	Insurance and Insurance Proceeds	54
10.10	Compliance with Laws and Agreements	55
10.11	Taxes	55
10.12	Further Assurances	55
10.13	Limitations on Indebtedness	55
10.14	Negative Pledge	56
10.15	Investments	56
10.16	Change in Business and Ownership of AltaLink and Subsidiaries	56
10.17	Mergers, Etc.	56
10.18	Acquisitions	56
10.19	Transactions with Non-Arm's Length Persons	57
10.20	Environmental Covenants	57
10.21	Hedging Agreements	58
10.22	Distributions	58
10.23	Fiscal Year	58
10.24	Financial Covenants	58
10.25	Master Trust Indenture	58
Article 11 CONDITIONS PRECEDENT TO BORROWINGS		59
11.1	Conditions Precedent to the Closing	59

11.2	Conditions Precedent to All Borrowings, Conversions	60
11.3	Waiver	60
Article 12 EVENTS OF DEFAULT		60
12.1	Events of Default	60
12.2	Remedies	63
12.3	Remedies Cumulative	64
12.4	Appropriation of Moneys Received	64
12.5	Non-Merger	64
12.6	Waiver	64
12.7	Set-Off	64
Article 13 YIELD PROTECTION		65
13.1	Increased Costs	65
13.2	Taxes	66
13.3	Mitigation Obligation: Replacement of Lenders	68
13.4	Illegality	69
Article 14 RIGHT OF SETOFF		70
14.1	Right of Setoff	70
Article 15 SHARING OF PAYMENTS BY LENDERS		70
15.1	Sharing of Payments by Lenders	70
Article 16 AGENT'S CLAWBACK		71
16.1	Agent's Clawback	71
Article 17 AGENCY		72
17.1	Appointment and Authority	72
17.2	Rights as a Lender	72
17.3	Exculpatory Provisions	72
17.4	Reliance by Agent	73
17.5	Indemnification of Agent	74
17.6	Delegation of Duties	74
17.7	Replacement of Agent	74
17.8	Non-Reliance on Agent and other Lenders	75
17.9	Collective Action on the Lenders	75
17.10	No Other Duties, etc	76
Article 18 NOTICES: EFFECTIVENESS; ELECTRONIC COMMUNICATION		76
18.1	Notices, etc.	76
Article 19 EXPENSES; INDEMNITY : DAMAGE WAIVER		77
19.1	Expenses; Indemnity: Damage Waiver	77
Article 20 SUCCESSORS AND ASSIGNS		79
20.1	Successors and Assigns	79
Articles 21 AMENDMENTS AND WAIVERS		82
21.1	Amendments and Waivers	82
21.2	Judgment Currency	82
Article 22 GOVERNING LAW; JURISDICTION; ETC		83
22.1	Governing Law; Jurisdiction; etc.	83

Article 23 WAIVER OF JURY TRIAL		83
23.1	Waiver of Jury Trial	83
Article 24 COUNTERPARTS; INTEGRATION; EFFECTIVENESS; ELECTRONIC
EXECUTION		84
24.1	Counterparts; Integration; Effectiveness; Electronic Execution	84
Article 25 TREATMENT OF CERTAIN INFORMATION CONFIDENTIALLITY		84
25.1	Treatment of Certain Information Confidentiality	84
Article 26 MISCELLANEOUS		86
25.1	Further Assurances	86
26.2	Acknowledgement	86
26.3	Unmatured BAs on the Effective Date	86

SCHEDULE 1	-	BORROWER'S CERTIFICATE OF COMPLIANCE
SCHEDULE 2(A)	-	BORROWING NOTICE
SCHEDULE 2(B)	-	NOTICE OF ROLL OVER
SCHEDULE 2(C)	-	CONVERSION OF OPTION NOTICE
SCHEDULE 3	-	NOTICE OF EXTENSION
SCHEDULE 4	-	FORM OF ISSUE NOTICE
SCHEDULE 5	-	ASSIGNMENT AND ASUMPTION
SCHEDULE 6	-	COMMITMENTS OF THE LENDERS
SCHEDULE 6.1(a)	-	FORM OF NOTICE OF REPAYMENT
SCHEDULE 7	-	FORM OF SENIOR PLEDGED, SERIES 1
SCHEDULE 8	-	FORM OF THIRD SUPPLEMENTAL INDENTURE
SCHEDULE 9.1(a)	-	CREDIT PARTY AND SUBSIDARY INFORMATION
SCHEDULE 10	-	MATERIAL AGREEMENTS

THIS AMENDED AND RESTATED CREDIT AGREEMENT is made as of December 14,

2011

AMONG:

ALTALINK INVESTMENT MANAGEMENT LTD., in its

capacity as general partner of ALTALINK INVESTMENTS,

L.P.,

as Borrower,

·and·

ALTALINK INVESTMENT MANAGEMENT LTD.,

as General Partner,

·and -

ROYAL BANK OF CANADA

as Agent of the Lenders, and as a Lender,

- and -

ALL OTHER LENDERS WHICH BECOME PARTIES

HEREUNDER,

as Lenders

WHEREAS the Borrower, Royal Bank of Canada, as agent and the Lenders are party to an Amended and Restated Credit Agreement dated December 15, 2010 (such agreement, as amended by a first amending agreement dated as of October 28, 2011, the "Existing Credit Agreement", which Existing Credit Agreement was an amendment and restatement of an amended and restated credit agreement dated December 16, 2009, as amended by a first amending agreement dated as of December 23, 2009, the "December 16, 2009 Credit Agreement"), pursuant to which the Lenders agreed (subject to the terms of the Existing Credit Agreement) to make funding available to the Borrower from time to time for operating expenses, capital expenditures and working capital needs of the Borrower and AltaLink.

AND WHEREAS the Borrower is party to a Master Trust Indenture (as defined herein) pursuant to which it may borrow money by, among other things, creating and issuing bonds and other debt securities and entering into credit facility agreements, all in the manner set forth in the Master Trust Indenture;

AND WHEREAS in conjunction with the Original Credit Agreement (as defined in the December 16, 2009 Credit Agreement), the Borrower entered into a supplemental indenture under the Master Trust Indenture and authorized the issuance of a Pledged Bond under the Master Trust Indenture, as continuing collateral security for the obligations owing under the December 16, 2009 Credit Agreement.

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

-2-

AND WHEREAS the Borrower has requested that the Agent and Lenders agree to amend and restate the Existing Credit Agreement to, inter alia (a), increase the principal amount thereof to

$300,000,000, (b) extend the Maturity Date, and (c) make certain additional amendments thereto,

all as more particularly set forth in this Amended and Restated Credit Agreement.

NOW THEREFORE THIS AGREEMENT WITNESSES that, in consideration of the mutual covenants and agreements contained in this Agreement, the Borrower, the Agent and the Lenders covenant and agree as follows:

ARTICLE 1

INTERPRETATION

1.1    Definitions

In this Agreement, unless the context otherwise requires, the following terms shall have the following meanings:

"Accommodations" means the Loans, Documentary Credits and Bankers' Acceptances (including BA Equivalent Loans) made under this Credit Facility and shall refer to any one or more of such types where the context requires.

"Acquisition" means, with respect to any Person, any transaction or series of related transactions for the direct or indirect (i) acquisition of the Assets of any other Person; (ii) acquisition of any shares, securities, interests, participations or other equivalents (including partnership interests or units) of any Person; or (iii) reconstruction, reorganization, consolidation, wind-up, merger, transfer, sale, lease or other combination with any other Person; and "Acquire" and "Acquired" have meanings correlative thereto.

"Advance" means an advance by the Lenders or any of them of any Accommodation, and shall include deemed Advances and conversions, renewals and rollovers of existing Advances, and any reference relating to the amount of Advances shall mean the Canadian Dollar Amount of all outstanding Accommodation.

"Affiliate" of any specified Person means any other Person directly or indirectly

Controlling, Controlled by, or under common Control with such Person.

"Agent" means RBC in its capacity as administrative agent hereunder, or any successor

Agent appointed under Section 17.7.

"Agent's Account" means the account at the Branch into which Lenders' Advances shall be deposited for payment to the Borrower.

"Agreement" means this Amended and Restated Credit Agreement and the Schedules hereto, as amended, supplemented or restated from time to time.

"AltaLink"means AltaLink, L.P., an Alberta limited partnership, together with its successors and assigns.

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

"Applicable Law" means, at any time, with respect to any Person, property, transaction or event, all then applicable laws, by-laws, statutes and regulations, and (to the extent that they have the force of law) all then applicable treaties, judgments, decrees, official directives, rules, consents, approvals, authorizations, guidelines, orders and policies of any Governmental Authority having authority over any of such Person, property, transaction or event.

"Applicable Margin" means the applicable fee or margin amount set out in the following grid for the rating which corresponds to the rating received from S&P or DBRS for the Senior Bonds, Series 05-1 and Senior Bonds, Series 09-1 and which is determined below:

Ratings	Category I	Category II	Category III	Category IV
S & P and DBRS	>BBB/ BBB	BBB/ BBB	BBB-/ BBB(low)	<BBB-/ BBB(low)/ unrated
Application Margin for Bankers' Acceptances, LIBOR Loans & Documentary Credits	135 bps	150 bps	175 bps	200 bps
Application Margin for Prime Rate Loans and US Base Rate Loans	35 bps	50 bps	75 bps	100 bps
Commitment Fee	27 bps	30 bps	35 bps	40 bps

For purposes of this Agreement, if at any time the ratings assigned by the Rating Agencies fall within different rating categories in accordance with the above table, (a) in the case where the lowest public long term debt rating is BBB- or higher, the Applicable Margin will be the higher of the ratings and (b) in the case where the lowest public long term debt rating is lower than BBB- , the Applicable Margin will be based on the average of the ratings.

Any increase or decrease in the Applicable Margin (other than with respect to Bankers' Acceptances) resulting from a change in the rating assigned by one or more Rating Agency shall be calculated with reference to the new Applicable Margin and fee effective on and after the date on which such rating change is published, notwithstanding that any affected Advance may have been made or issued prior to such date. Any increase or decrease in the applicable Banker's Acceptance Fee shall apply to all Bankers' Acceptances drawn by the Borrower or on rollover or conversion pursuant to Section 2.8(f), as of the date of such drawing, rollover or conversion, as the case may be.

"Applicable Percentage" means with respect to any Lender, the percentage of the total Commitments represented by such Lender's Commitment. If the Commitments have terminated or expired, the Applicable Percentages shall be the percentage of the total Accommodations outstanding represented by such Lender's Accommodations outstanding.

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

"Applicable Utilities Legislation" means the Alberta Utilities Commission Act (Alberta), the Electric Utilities Act (Alberta), the Public Utilities Act (Alberta), the Hydro and Electric Energy Act (Alberta), and any other legislation that now or in the future regulates the operations of the Business, as each may be amended or supplemented from time to time.

"Approved Fund" means, with respect to any Lender that is an investment fund that invests in bank loans, any other investment fund that invests in bank loans and is managed by the same investment advisor as such Lender or by an Affiliate of such investment advisor.

"Assets" means, with respect to any Person, any property, assets and undertakings of such Person of every kind and wheresoever situate, whether now owned or hereafter acquired (and, for greater certainty, includes any equity or like interest of any Person in any other Person).

"Assignment and Assumption" means an assignment and assumption agreement substantially in the form attached as Schedule 5.

"AUC" means the Alberta Utilities Commission, or any successor or replacement board regulating the transmission of energy in the Province of Alberta.

"Auditor" means the independent national firm of Canadian chartered accountants appointed from time to time as the auditor of the Borrower.

"BA Discount Proceeds" means, in respect of any Bankers' Acceptance, an amount calculated on the applicable Borrowing Date which is (rounded to the nearest full cent, with one-half of one cent being rounded up) equal to the Face Amount of such Bankers' Acceptance multiplied by the price, where the price is calculated by dividing one by the sum of one plus the product of (i) the BA Discount Rate applicable thereto expressed as a decimal fraction multiplied by (ii) a fraction, the numerator of which is the term of such Bankers' Acceptance and the denominator of which is three hundred and sixty-five (365), which calculated price will be rounded to the nearest multiple of 0.001%.

"BA Discount Rate" means:

(a) with respect to an issue of Bankers' Acceptances accepted by a Lender that is a Schedule I Bank, the CDOR Rate;

(b) with respect to an issue of Bankers' Acceptances accepted by a Lender that is a Schedule II Bank or a Schedule III Bank, the lesser of: (i) the rate set out in clause (a) above plus 0.10%; and (ii) the annual rate, expressed as a percentage, as being the average discount rate for bankers' acceptances having a comparable face value and a comparable issue and maturity date to the face value and issue and maturity date of such issue of Bankers' Acceptances, expressed on the basis of a year of 365 days, quoted by such Lenders for the purchase by such Lenders of Bankers' Acceptances accepted by them, at or about 10:00 a.m. (Toronto time) on the date of issue of such Bankers' Acceptances; and

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

(c) with respect to a BA Equivalent Loan:

(i) made by a Lender that is a Schedule I Bank, the CDOR Rate; and

(ii) made by any other Lender, the rate set out in clause (a) above plus 0.10%.

"BA Equivalent Loan" shall have the meaning ascribed thereto in Section 2.8(j).

"Bankers' Acceptance" means a Draft drawn by the Borrower denominated in Canadian Dollars, for a term of one, two, three or six months or such other term as is readily acceptable, which term shall mature on a Business Day and on or before the Maturity Date for an amount of Five Hundred Thousand Canadian Dollars (Cdn.$500,000) or any whole multiple of Five Hundred and Thousand Canadian Dollars (Cdn.$500,000), the minimum aggregate amount of which included in any Borrowing shall be Five Hundred and Thousand Canadian Dollars (Cdn.$500,000), and accepted by a Lender pursuant to this Agreement.

"Bankers' Acceptance Fee" means the fee payable on the Face Amount of each Bankers' Acceptance calculated and payable in the manner provided for in Section 5.1.

"Beneficiary" means, in respect of a Documentary Credit, the beneficiary named in the Documentary Credit or the Issue Notice with respect thereto.

"Bond Delivery Agreement" means the bond delivery agreement dated as of the date hereof among the parties hereto as the same may be amended or supplemented from time to time.

"Borrower"means AltaLink Investments, L.P., a limited partnership created and existing under the Partnership Act (Alberta), and its permitted successors and permitted assigns.

"Borrower's Certificate of Compliance" means a certificate of the Borrower in the form of Schedule 1 and signed on behalf of the Borrower by any one of (i) Managing Director, (ii) the Vice President, Finance or any other person so designated, or (iii) any Director of the General Partner or any other senior officer of the General Partner so designated by a certificate signed by the Managing Director or any two (2) Directors of the General Partner and filed with the Agent for so long as such designation shall be in effect.

"Borrowing" means the aggregate Accommodation to be obtained by the Borrower from one or more of the Lenders on any Borrowing Date.

"Borrowing Date" means the Business Day specified in a Borrowing Notice on which a Lender is or Lenders are requested to provide Accommodation.

"Borrowing Notice" has the meaning set out in Section 2.5.

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

"Branch" means the main branch of the Agent situated at Xxxxxxx, Xxxxxxx, or such other branch of the Agent in the City of Toronto as the Agent may from time to time designate in writing to the Borrower.

"Business" means the following businesses and services of the Borrower and its Subsidiaries:

(a) ownership of limited partnership units in AltaLink;

(b) direct or indirect participation in the transmission of electricity in Canada or the United States;

(c) the ownership or operation of electrical transmission lines and infrastructure in Canada or the United States, including the use of such infrastructure for telecommunication or other communication purposes, subject to such telecommunication or other communication purposes not exceeding 10% of Consolidated Assets;

(d) engineering or administrative services related to the activities described in paragraphs (a) through (c) above;

(e) the Acquisition of any Person related to the activities described in paragraphs (a) through (d) above, in compliance with Section 10.18; and

(f) such other services as determined to be ancillary to the activities described in paragraphs (a) through (d) above (whether or not such services are regulated by the AUC), with such other services not exceeding 10% of Consolidated Assets.

For greater certainty "Business" (i) shall not include the generation and/or distribution of electricity or sale of power and (ii) when used with reference to AltaLink and its Subsidiaries, shall not be interpreted to include any business, activities or services described above which are inconsistent with the business which AltaLink and its Subsidiaries now, or at any time while this Agreement is in effect, carries out in accordance with the terms of the amended and restated master trust indenture dated April 28, 2003 to which AltaLink is party.

"Business Day" means any day of the year (other than a Saturday, Sunday, and any day which shall be in Calgary, Alberta a legal holiday) on which the Agent is open at the Branch for the conduct of regular banking business and, where used in the context of (i) U.S. Base Rate Loan, is also a day on which banks are not required or authorized to close in New York, New York; and (ii) a Libor Loan, is also a day on which banks are not required or authorized to close in New York, New York and dealings are carried on in the London interbank market.

"Canadian Dollar" or "Cdn.$" means the currency of Canada.

"Canadian Dollar Amount" means, at any time, in relation to any outstanding Accommodation, in relation to a:

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

(a) Loan denominated in Canadian Dollars, the principal amount thereof;

(b) Bankers' Acceptance, the Face Amount thereof;

(c) Loan denominated in U.S. Dollars, the Equivalent Amount expressed in Canadian Dollars of the principal amount thereof; and

(d) Documentary Credit, (i) where the Documentary Credit is denominated in Canadian Dollars, the amount of the maximum aggregate liability (contingent or actual) of the Documentary Credit Lender pursuant to such Documentary Credit expressed in Canadian Dollars and (ii) where the Documentary Credit is denominated in US Dollars, the Equivalent Amount of the maximum aggregate liability (contingent or actual) of the Documentary Credit Lender pursuant to such Documentary Credit.

"Capital Lease Obligations" of any Person means the obligations of such Person to pay rent or other amounts under any leasing or similar arrangement which in accordance with GAAP would be classified and accounted for as capital leases and the amount of such Capital Lease Obligations shall be the capitalized amount thereof determined in accordance with GAAP.

"Change in Law" means the occurrence, after the date of this Agreement, of any of the following: (a) the adoption or taking effect of any applicable Law, (b) any change in any applicable Law or in the administration, interpretation or application thereof by any Governmental Authority, or (c) the making or issuance of any applicable Law by any Governmental Authority, provided that notwithstanding anything herein to the contrary, (x) the Xxxx-Xxxxx Xxxx Street Reform and Consumer Protection Act and all requests, rules, guidelines or directives thereunder or issued in connection therewith and (y) all requests, rules, guidelines or directives promulgated by the Bank for International Settlements, the Basel Committee on Banking Supervision (or any successor or similar authority) or Canadian or foreign regulatory authorities, in each case pursuant to Basel III, shall in each case be deemed to be a "Change in Law", regardless of the date enacted, adopted or issued.

"Change of Control" means any event whereby:

(a) AltaLink Holdings, L.P. ceases to be the sole limited partner and owner of 99.99% of the Equity Securities of the Borrower or AltaLink Investment Management Ltd. ceases to be the sole general partner and owner of .01 % of the Equity Securities in the Borrower;

(b) the Borrower ceases to be the sole limited partner and owner of 99.99% of the Equity Securities in AltaLink and/or AltaLink Management Ltd. ceases to be the sole general partner and the owner of .01 % of the Equity Securities of AltaLink;

(c) the aggregate revenues and the total Assets of non-wholly owned Subsidiaries of the Borrower exceed 10% of the revenue and net tangible total Assets of the Borrower and its Subsidiaries. The parties agree that for the purposes of this paragraph (c) (and paragraph 5 of the Certificate of Compliance and Section

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

10.16(a)), AltaLink shall be deemed to be a wholly owned Subsidiary of the Borrower so long as (i) the representations and warranties in Section 9.l(t)(i) and (ii) remain true and correct, and (ii) SNC Lavalin Group Inc. continues to own (directly or indirectly) 100% of the Equity Securities of AltaLink Management Ltd;

(d) SNC-Lavalin Group Inc. ceases to collectively own (directly or indirectly) at least 51% of voting and economic interest in the Borrower, unless at the closing of a transaction wherein SNC-Lavalin Group Inc. will own (directly or indirectly) less than 51 % of the voting and economic interest in of the Borrower, the Borrower has delivered to the Lenders confirmations taking such transaction into account from S&P and DBRS that the long term public debt ratings of the Borrower shall not be lower than BBB- or BBB(low).

"Claim" shall have the meaning set out in Section 7.6.

"Commercial Paper Program" shall have the meaning ascribed thereto in the Master

Trust Indenture.

"Commitment" means in respect of each Lender from time to time, the covenant to make Advances to the Borrower of the Lender's Applicable Percentage of the Committed Amount and, where the context requires, the maximum amount of Advances which such Lender has covenanted to make, as recorded on the Register maintained by the Agent referred to in Section 20.l(c) and as also set forth on Schedule 6 or in the most recent Assignment and Assumption executed by such Lender, as such amount may be reduced pursuant to this Agreement.

"Committed Amount" means three hundred million Canadian Dollars (Cdn $300,000,000), including as such amount may be cancelled pursuant to Section 2.2 or otherwise reduced pursuant to this Agreement.

"Consolidated Assets" means, at any time, the total Assets of the Borrower and its Subsidiaries at such time, determined on a consolidated basis in accordance with GAAP.

"Consolidated Total Capitalization" means at any time, the sum of (i) Consolidated Unitholder Equity at such time, plus (ii) Consolidated Total Debt at such time, plus (iii) the principal amount of all outstanding Preferred Securities in each case determined on a consolidated basis for the Borrower in accordance with GAAP.

"Consolidated Total Debt" means, the following, as at any date calculated on a consolidated basis for the Borrower and its Subsidiaries, without duplication:

(a) the aggregate principal amount of all obligations of the Borrower and its Subsidiaries for borrowed money (other than obligations arising out of the issuance of any Refunding Bonds (as such term is defined in the Master Trust Indenture) during such period of time as the Indebtedness to be repaid by the Refunding Bonds continues to be outstanding), including obligations with respect to bankers' acceptances and contingent reimbursement obligations in respect of Documentary Credits and other instruments, and including all capitalized interest

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

and other similar amounts required to be paid at maturity on obligations for borrowed money, but excluding Preferred Securities issued by the Borrower and its Subsidiaries;

(b) the aggregate principal amount of all obligations issued or assumed by the Borrower and its Subsidiaries in connection with their acquisition of property in respect of the deferred purchase price of that property;

(c) all Capital Lease Obligations and Purchase Money Obligations;

(d) all Indebtedness outstanding under any Commercial Paper Program; and

(e) all Guarantees of any of the foregoing.

"Consolidated Unitholder Equity" means, at any time, the consolidated unitholder equity appearing on the consolidated balance sheet of the Borrower at such time.

"Contaminant" means any pollutant, dangerous, toxic or Hazardous Substance or waste of any description whatsoever, hazardous materials or contaminants, all as defined in any Environmental Law, but excludes cleaning and related products used in the operation and maintenance of the Business which are normally used by reasonable professional operators of similar businesses.

"Control" when used with respect to any specified Person, means the power to direct the management and policies of such Person, directly or indirectly, whether through the ownership of voting securities, by contract or otherwise; and the terms "Controlling" and "Controlled" have corresponding meanings.

"Credit Facility" means the credit facility established by the Lenders in favour of the Borrower pursuant to Section 2.1.

"Credit Parties" means the Borrower and the General Partner.

"DBRS" means Dominion Bond Rating Service Limited and its successors for so long as it shall perform the functions of a securities rating agency.

"Depreciation and Amortization Expense" means with respect to the Borrower, for any period, depreciation and amortization expense of the Borrower that is included as a deduction in the calculation of net income for such period, determined on a unconsolidated basis in accordance with GAAP.

"Default" means an event which, with the giving of notice or lapse of time, or both, would constitute an Event of Default.

"Demand Date" means any date that repayment of Accommodation or any other amount outstanding under this Agreement is demanded under ARTICLE 12.

"Distribution" means, with respect to any Person, any payment by such Person (i) of any dividends on any of its Equity Securities, (ii) on account of, or for the purpose of setting

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

apart any property for a sinking or other analogous fund for, the purchase, redemption, retirement or other acquisition of any of its Equity Securities or any warrants, options or rights to acquire any such shares, or the making by such Person of any other distribution in respect of any of its Equity Securities, (iii) of any principal of or interest or premium on or of any amount in respect of a sinking or analogous fund or defeasance fund for any Debt of such Person ranking in right of payment subordinate to any liability of such Person under the Loan Documents, (iv) of any principal of or interest or premium on or of any amount in respect of a sinking or analogous fund or defeasance fund for any indebtedness of such Person to a shareholder or partner of such Person or to an Affiliate of a shareholder or partner of such Person, or (v) of any management, consulting or similar fee or any bonus payment or comparable payment, or by way of gift or other gratuity, to any Affiliate of such Person or to any director or officer thereof, other than management fees paid in the ordinary course of business, not to exceed $ 5 million in aggregate in any Fiscal Year.

"Documentary Credit" means a letter of credit or a letter of guarantee issued or to be issued by a Documentary Credit Lender for the account of Borrower pursuant to ARTICLE 3, as the same may be amended, supplemented, extended or restated from time to time.

"Documentary Credit Lenders" means, in the singular, Royal Bank of Canada or any other Lender selected by Borrower which is willing to issue Documentary Credits and, collectively, means all such Documentary Credit Lenders.

"Draft" means at any time a xxxxx xxxx of exchange, within the meaning of the Bills of Exchange Act (Canada), drawn by the Borrower on a Lender and bearing such distinguishing letters and numbers as such Lender may require, but which at such time has not been completed or accepted by such Lender or a depository xxxx as defined by the Depository Xxxx and Notes Act (Canada).

"EBITDA" means, with respect to the Borrower, on an unconsolidated basis, for any period, the Net Income of the Borrower for such period (a) increased, to the extent deducted in calculating Net Income for such period, by the sum of (i) Interest Expense for such period, (ii) Income Tax Expense for such period, (iii) Depreciation and Amortization Expense for such period and (iv) any other non-cash items decreasing Net Income for such period, and (b) decreased, to the extent included in calculating Net Income for such period, by the sum of (i) non-cash items relating to consolidated foreign exchange gains on debt and related foreign exchange contracts increasing Net Income for such period, and (ii) any other non-cash items increasing Net Income for such period.

"Effective Date" means the date of this Agreement.

"Eligible Assignees" means any Person (other than a natural person, any Loan Party or any Affiliate of a Loan Party), in respect of which any consent that is required by Section 20.1 (b)has been obtained.

"Environmental Adverse Effect" means one or more of the following in connection with an Environmental Matter:

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

(a) impairment or adverse alteration of the quality of the Natural Environment for any use that can be made of it by humans, or by any animal, fish or plant that is useful to humans;

(b) injury or damage to property or to plant or animal life;

(c) harm or material discomfort to any Person;

(d) an adverse effect on the health of any Person;

(e) impairment of the safety of any Person;

(f) rendering any property or plant or animal life unfit for human use;

(g) loss of enjoyment of normal use of property; and

(h) interference with the normal conduct of business.

"Environmental Approvals" means all applicable permits, licences, authorizations, consents, directions or approvals required by Governmental Authorities pursuant to the Environmental Laws with respect to the operation of the Business.

"Environmental Laws" means all applicable federal, provincial and local laws, by-laws, rules, regulations, orders, codes and judgments relating to the protection of the environment and public health and safety, and without restricting the generality of the foregoing, includes without limitation those Environmental Laws relating to the storage, transportation, treatment and disposal of Hazardous Substances, employee and product safety, and the Release or threatened Release of Hazardous Substances into the air, surface water, ground water, land surface, subsurface strata or any building or structure and, in each such case, as such Environmental Laws may be amended or supplemented from time to time.

"Environmental Liability" means any liability of the Borrower under any Environmental Laws or any other applicable law for any adverse impact on the environment, health or safety, including the Release of a Hazardous Substance, and any liability for the costs of any clean-up, preventative or other remedial action including costs relating to studies undertaken or arising out of security fencing, alternative water supplies, temporary evacuation and housing and other emergency assistance undertaken by any Governmental Authority to prevent or minimize any actual or threatened Release by the Borrower of any Hazardous Substance.

"Environmental Matter" means any past, present or future activity, event or circumstance in respect of the environment, health or safety including the Release of any Hazardous Substance including any substance which is hazardous to Persons, animals, plants, or which has a detrimental effect on the soil, air or water, or the generation, treatment, storage, use, manufacture, holding, collection, processing, treatment, presence, transportation or disposal of any Hazardous Substances.

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

"Environmental Proceeding" means any judgment, action, proceeding or investigation pending before any court or Governmental Authority, including any environmental Governmental Authority, with respect to or threatened against or affecting the Borrower or relating to the assets or liabilities of the Borrower or any of their respective operations, in connection with any Environmental Laws, Environmental Matter or Environmental Liability.

"Equity Securities" means, with respect to any Person, any and all shares, interests, participations, rights in, or other equivalents (however designated and whether voting or non-voting) of, such Person's capital, whether outstanding on the date hereof or issued after the date hereof, including any interest in a partnership, limited partnership or other similar Person and any beneficial interest in a trust, and any and all rights, warrants, options or other rights exchangeable for or convertible into any of the foregoing.

"Equivalent Amount" means, with respect to any two currencies, the amount obtained in one such currency when an amount in the second currency is translated into the first currency using the Bank of Canada noon rate of exchange between such currencies on the Business Day for which such computation is made or, if such rate is not available, using the spot buying rate of the Agent for the purchase of the first currency with the applicable amount of the second currency in effect at the Branch at or about noon on the Business Day with respect to which such computation is required or, in the absence of such a buying rate on such date, using such other rate as the Agent may reasonably select.

"Event of Default" shall have the meaning specified in Section 12.1.

"Excluded Taxes" means, with respect to the Agent, any Lender or any other recipient of any payment to be made by or on account of any obligation of a Credit Party hereunder or under any Loan Document, (a) taxes imposed on or measured by its net income, and franchise taxes imposed on it (in lieu of net income taxes), by the jurisdiction (or any political subdivision thereof) under the laws of which such recipient is organized or in which its principal office is located or, in the case of any Lender, in which its applicable lending office is located, (b) any branch profits taxes or any similar tax imposed by any jurisdiction in which the Lender is located and (c) in the case of a Foreign Lender (other than (i) an assignee pursuant to a request by the Borrower under Section 13.3(b), (ii) an assignee pursuant to an Assignment and Assumption made when an Event of Default has occurred and is continuing, or (iii) any other assignee to the extent that the Borrower has expressly agreed that any withholding tax shall be an Indemnified Tax), any withholding tax that (A) is imposed or assessed other than in respect of an Accommodation that was made on the premise that an exemption from such withholding tax would be available where the exemption is subsequently determined, or alleged by a taxing authority, not to be available and (B) is required by applicable Law to be withheld or paid in respect of any amount payable hereunder or under any Loan Document to such Foreign Lender at the time such Foreign Lender becomes a party hereto (or designates a new lending office) or is attributable to such Foreign Lender's failure or inability (other than as a result of a Change in Law) to comply with Section 13.2(e), except to the extent that such Foreign Lender (or its assignor, if any) was entitled, at the time of designation of a new lending office (or assignment), to receive additional amounts from a Credit Party with respect to such withholding tax pursuant to

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

13.2(a). For greater certainty, for purposes of item (c) above, a withholding tax includes any Tax that a Foreign Lender is required to pay pursuant to Part XIII of the Income Tax Act (Canada) or any successor provision thereto.

"Face Amount" means (i) in respect of a BA Instrument, the amount payable to the holder on its maturity; and (ii) in respect of a Documentary Credit, the maximum amount which the Documentary Credit Lender is contingently liable to pay the Beneficiary.

"Federal Funds Rate" means, for any day, the rate per annum equal to the weighted average of the rates on overnight federal funds transactions with members of the Federal Reserve System arranged by federal funds brokers on such day, as published by the Federal Reserve Bank of New York on the Business Day next succeeding such day; provided, that (a), if such day is not a Business Day, the Federal Funds Rate for such day shall be such rate on such transactions on the next preceding Business Day as so published on the next succeeding Business Day and (b) if no such rate is so published on such next day succeeding Business Day, the Federal Funds Rate for such day shall be the average rate charged to the Agent on such day on such transactions as determined by the Agent.

"Financial Instrument Obligation" means the obligation under any transaction that is a rate swap, basis swap, forward rate transaction, commodity swap, commodity option, commodity future, equity or equity index swap or option, bond, note or xxxx option, interest rate option, forward foreign exchange transaction, cap, collar or floor transaction, currency swap, cross-currency rate swap, swaption, currency option or any other similar transaction, including any option to enter into any of the foregoing, or any combination of the foregoing. The amount of any Financial Instrument Obligation is the net amount due to or accruing due under the agreement governing such obligation, determined by marking the obligation to market at the time of determination in accordance with its terms.

"Fiscal Quarter" means, in respect of the Borrower, a period of three consecutive months in each Fiscal Year ending on March 31, June 30, September 30 and December 31, as the case may be, of such year, or such other fiscal quarter as the Lenders may agree to.

"Fiscal Year" shall mean with respect to the Borrower, a 12-month period commencing on the first day of January of each calendar year, or such other fiscal year as the Lenders may agree to.

"Foreign Lender" means any Lender that is not resident for income tax or withholding tax purposes under the laws of the jurisdiction in which the Borrower is resident for tax purposes on the date hereof and that is not otherwise considered or deemed in respect of any amount payable to it hereunder or under any Loan Document to be resident for income tax or withholding tax purposes in the jurisdiction in which the Borrower is resident for tax purposes by application of the laws of that jurisdiction. For purposes of this definition Canada and each Province and Territory thereof shall be deemed to constitute a single jurisdiction and the United States of America, each State thereof and the District of Columbia shall be deemed to constitute a single jurisdiction.

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

"GAAP" means (i) generally accepted accounting principles as approved by the Canadian Institute of Chartered Accountants or any successor institute from time to time, including those set out in the Handbook of the Canadian Institute of Chartered Accountants, or (ii) IFRS, if the Borrower has adopted IFRS, subject at all times to the application of Section 1.5.

"General Partner" means AltaLink Investment Management Ltd., a corporation incorporated under the Business Corporations Act (Alberta), in its capacity as general partner of the Borrower, and its permitted successors and permitted assigns in such capacity.

"Governmental Approvals" means any authorization, order, permit, approval, grant, licence, consent, right, privilege, certificate or the like which may be issued or granted by law or by rule, regulation, policy or directive of any Governmental Authority now or hereafter required in connection with the use, management, maintenance and operation of the Business by the Borrower and its Subsidiaries.

"Governmental Authority" means with respect to any Person, any (i) international tribunal, agency, body, commission or other authority, any government, executive, parliament, legislature or local authority, or any governmental body, ministry, department or agency or regulatory authority, court, tribunal, commission or board of or within Canada or any foreign jurisdiction, or any political subdivision of any thereof or any authority having jurisdiction therein or (ii) quasi-governmental or private body exercising any regulatory, expropriation or taxing authority under or for the account of any of the above, which in each case, has jurisdiction over a specified Person or its property and assets under the laws of the jurisdiction in which that Person or its property and assets are located.

"Guarantee" means, with respect to a Person, any obligation (other than an endorsement in the ordinary course of business of negotiable instruments for deposit or collection) of such Person guaranteeing, or in effect guaranteeing, any Indebtedness or other obligation of any other Person (the "primary obligor") in any manner, whether directly or indirectly, including any obligation incurred through an agreement, contingent or otherwise, by such Person:

(a) to purchase such Indebtedness or obligation or any property or assets constituting security therefor;

(b) to advance or supply funds (i) for the purchase or payment of such Indebtedness or obligation, (ii) to maintain working capital, net worth or other balance sheet condition of the primary obligor, or (iii) otherwise to advance or make available funds for the purchase or payment of such Indebtedness or obligation;

(c) to lease property or to purchase securities or other property or services primarily for the purpose of assuring the owner of such Indebtedness or obligation of the ability of the primary obligor to make payment of the Indebtedness or obligation; or

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

(d) otherwise to assure or indemnify the owner of the Indebtedness or obligation of the primary obligor against loss in respect thereof.

For the purposes of all computations made under this Agreement, a Guarantee in respect of any Indebtedness shall be deemed, without duplication, to be equal to the principal amount of such Indebtedness and any capitalized interest thereon (and any other amount which becomes due and owing in respect thereof) which has been guaranteed, and a Guarantee in respect of any other obligation shall be deemed to be Indebtedness equal to the maximum aggregate amount of such obligation.

"Hazardous Substance" means any contaminant, pollutant or substance that is likely to cause immediately, or at some future time, harm or degradation to the environment or risk to human health or safety, and without restricting the generality of the foregoing, includes without limitation any pollutant, contaminant, waste, hazardous waste, toxic substance or dangerous good which is defined or identified in any Environmental Law or industry standard, or which is present in the environment in such quantity or state that it contravenes any Environmental Law.

"IFRS" means at any given date, International Financial Reporting Standards, which include standards and interpretations adopted by the International Accounting Standards Board (IASB), applied on a consistent basis.

"Impermissible Qualification" means, relative to (i) the financial statements or notes thereto of any Person; or (ii) the opinion or report of any independent auditors as to any financial statement or notes thereto, any qualification or exception to such financial statements, notes, opinion or report, as the case may be, which (a) is of a "going concern" or similar nature; or (b) relates to any limited scope of examination of material matters relevant to such financial statement, if such limitation results from the refusal or failure of the Person to grant access to necessary information therefor.

"Income Tax Expense" shall mean, with respect to the Borrower for any fiscal period, the aggregate of all taxes on the income of the Borrower for such period, whether current or deferred, determined on an unconsolidated basis in accordance with GAAP.

"Indebtedness" of any Person means, at any time, (without duplication),

(a) the aggregate principal amount of all obligations of that Person for borrowed money (other than Obligations arising out of the issuance of any Refunding Bonds (as such term is defined in the Master Trust Indenture) during such period of time as the Indebtedness to be repaid by the Refunding Bonds continues to be outstanding), including obligations with respect to bankers' acceptances and contingent reimbursement obligations in respect of letters of credit and other instruments, and including all capitalized interest and other similar amounts required to be paid at maturity on obligations for borrowed money, but excluding Preferred Securities issued by that Person;

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

(b) the aggregate principal amount of all obligations issued or assumed by that Person in connection with its acquisition of property in respect of the deferred purchase price of that property;

(c) all Capital Lease Obligations and the aggregate principal amount of all Purchase Money Obligations of that Person;

(d) the amount of any Xxxx-to-Market Exposure with respect to any Financial Instrument Obligations of that Person;

(e) the principal amount of all borrowed money outstanding from time to time under any Commercial Paper Program;

(f) the principal amount of all borrowed money outstanding from time to time which constitutes Subordinated Debt (as such term is defined in the Master Trust Indenture); and

(g) all Guarantees of that Person in respect of any of the foregoing;

in each case expressed in Canadian Dollars and, with respect to any amount which is expressed in any other currency, the Canadian Dollar amount thereof shall be the Equivalent Amount at the time of determination. For greater certainty: (i) the capitalization of interest or other similar amounts payable at maturity on existing Indebtedness shall not be treated as the incurrence of Indebtedness, and (ii) the aggregate amount of all regulatory liabilities and asset retirement obligations shall not be treated as Indebtedness.

"Indemnified Taxes" means Taxes other than Excluded Taxes.

"Insurance Proceeds" means insurance proceeds or other awards payable to the Borrower or any of its Subsidiaries in connection with the loss, destruction or condemnation of any property or assets of such Person, net of reasonable costs, fees and expenses for repairing or replacing any such property or assets.

"Interest Expense" shall mean, with respect to the Borrower for any fiscal period, interest expense and payments made in respect of Capital Lease Obligations, determined on an unconsolidated basis in accordance with GAAP, and which shall exclude amortization of financing fees.

"Investments" means, in respect of any Person, any advances, loans, guarantees or other extensions of credit or capital contributions (other than prepaid expenses in the ordinary course of business) to (by means of transfers of property, money or assets) any other Person, and, for greater certainty, includes any Indebtedness of any other Person guaranteed by such Person.

"Issue Notice" has the meaning given to it in Section 3.2(a)

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

"Lenders" means RBC and all other financial institutions from time to time that have become a Lender in accordance with this Agreement and the Documentary Credit Lender and "Lender" means any one of them.

"LIBOR Interest Period" means, from time to time with respect to a LIBOR Loan, the applicable interest period of one, two, three or six months ending on a Business Day and on or before the applicable Maturity Date, as selected in accordance with Section 4.2.

"LIBOR Loan" means any Loan in U.S. Dollars with respect to which interest is calculated under this Agreement for the time being on the basis of the LIBOR Rate, the minimum aggregate principal amount of which included in any Borrowing shall be Two Hundred and Fifty Thousand U.S. Dollars (U.S.$250,000) or any greater amount which is a whole multiple of Two Hundred and Fifty Thousand U.S. Dollars (U.S.$250,000).

"LIBOR Rate" means, for any LIBOR Interest Period with respect to any LIBOR Loan:

(a) the rate of interest per annum, expressed on the basis of a year of 360 days, determined by the Agent, which is equal to the offered rate that appears on the page of the Reuters LIBOROl screen (or any successor thereto as may be selected by the Agent) that displays an average British Bankers Association Interest Settlement Rate for deposits in U.S. Dollars with a term equivalent to such LIBOR Interest Period, determined as of approximately 11:00 a.m. (London time) two (2) Business Days prior to the first day of such LIBOR Interest Period, or

(b) if the rates referenced in the preceding subsection (a) are not available, the rate per annum determined by the Agent as the rate of interest, expressed on a basis of 360 days at which deposits in U.S. Dollars for delivery on the first day of such Interest Period in same day funds in the approximate amount of the LIBOR Loan being made, continued or converted by the Agent and with a term and amount comparable to such LIBOR Interest Period and principal amount of such LIBOR Loan as would be offered by the Agent's London Branch to major banks in the offshore U.S. Dollar market at their request at approximately 11:00 a.m. (London time) two (2) Business Days prior to the first day of such LIBOR Interest Period.

"Lien" means any mortgage, lien, pledge, assignment, charge (whether floating or fixed), security, title retention agreement intended as security, hypothec, execution, seizure, attachment, garnishment or other similar encumbrance and any other arrangement which has the effect of creating an interest in property to secure payment or performance of an obligation including, without limitation, any Lien granted by the Borrower in favour of the Agent and Lenders designated as being secured, pursuant to the Master Trust Indenture and/or a Supplemental Indenture.

"Loan" means the amount of Canadian Dollars or U.S. Dollars advanced by a Lender or Lenders to the Borrower on any Borrowing Date pursuant to a Borrowing Notice or as otherwise provided herein and includes a Prime Rate Loan, a LIBOR Loan and a U.S. Base Rate Loan.

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

"Loan Documents" means this Agreement, any Documentary Credit documents, forms of Drafts, or agreements relating to Bankers' Acceptances required by any Lender and, when executed and delivered by or on behalf of the Borrower, the Master Trust Indenture and the Third Supplemental Indenture and all other documents, certificates, fee letters, instruments and agreements to be executed and delivered to the Agent or the Lenders by any Credit Party as contemplated hereunder and thereunder or any one or more of such documents.

"Majority Lenders" means, (i) where there are less than three Lenders, all Lenders and (ii) at any other time, Lenders having, in the aggregate, Applicable Percentages of a minimum of 66. 7% of the Committed Amount.

"Master Trust Indenture" means the trust indenture dated as of the 21st day of November, 2005 among the Borrower, the General Partner and BNY Trust Company of Canada, as trustee, as such agreement may be amended and supplemented from time to time.

"Material Adverse Change" means a change in the business, operations, results of operations, Assets, liabilities or financial condition of the Borrower and its Subsidiaries, taken as a whole, that would reasonably be expected to have a material adverse effect on the ability of the Borrower or any of its Subsidiaries to perform their obligations under this Agreement or any of the other Loan Documents to which they are a party or on the ability of the Agent to enforce such obligations.

"Material Adverse Effect" means an effect which materially adversely affects the ability of the Borrower to perform its obligations under this Agreement or, the Loan Documents, or which materially adversely affects the validity or priority of any Lien held by the Agent, or which results in an Event of Default and includes an Environmental Adverse Effect which constitutes or results in any of the foregoing effects.

"Material Agreement" means, collectively (i) the agreements specified by the Borrower in Schedule 10; and (ii) any other agreement of the Borrower or any of its Subsidiaries the breach, non-performance or cancellation of which or the failure of which to renew could reasonably be expected to have a Material Adverse Effect.

"Maturity Date" means, in respect of each Lender, unless otherwise accelerated as provided in this Agreement, December 14, 2014, as such date may be extended by such Lender in its sole discretion pursuant to Section 6.2(b), in which case, the Maturity Date in respect of such Lender shall be the date agreed to by such Lender pursuant to Section 6.2(b).

"Net Income" means, with respect to the Borrower for any period, the net income (loss) of the Borrower for such period, determined on an unconsolidated basis in accordance with GAAP, provided there shall be excluded therefrom (i) after-tax gains or losses from assets sales or abandonments or reserves relating thereto; (ii) after-tax items classified as extraordinary or non-recurring gains or losses; (iii) gains or losses from write-ups or write-downs of Assets; and (iv) net income (loss) from discontinued operations or the sale of discontinued operations.

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

"Non-AltaLink Subsidiary" means, individually, any Subsidiary of the Borrower other than AltaLink and its Subsidiaries, and "Non-AltaLink Subsidiaries" means all such Subsidiaries of the Borrower.

"Notice of Extension" shall have the meaning specified in Section 6.2(b ).

"Notice of Repayment" has the meaning given to it in Section 6.l(a)

"Other Taxes" means all present or future stamp or documentary taxes or any other excise or property taxes, charges or similar levies arising from any payment made hereunder or under any other Loan Document or from the execution, delivery or enforcement of, or otherwise with respect to, this Agreement or any other Loan Document.

"Participant" has the meaning specified in Section 20.l(d).

"Permitted Lien" means, in connection with the Borrower and any Non-AltaLink Subsidiary:

(a) any Purchase Money Mortgage or Lien granted with respect to a Capital Lease Obligation, provided that the total Indebtedness secured by such Purchase Money Mortgages and Liens shall not exceed ten million dollars ($10,000,000) at any time;

(b) any Lien for taxes, assessments, government charges or claims not yet due or that are being contested in good faith and in respect of which appropriate provision is made in the Borrower's consolidated financial statements in accordance with GAAP;

(c) any Lien securing appeal bonds or other similar liens arising in connection with court proceedings or contracts, bids or tenders entered into in the ordinary course of business, including, without limitation, surety bonds, security for costs of litigation where required by law, Documentary Credits, or any other instruments serving a similar purpose;

(d) any Lien or deposit under workers' compensation, social security or similar legislation or good faith deposits in connection with bids, tenders, leases and contracts entered into in the ordinary course of business or expropriation proceedings, or deposits to secure public or statutory obligations or deposits of cash or obligations to secure surety and appeal bonds;

(e) any Lien or privilege imposed by law, such as builders', carriers', warehousemen's, landlords', mechanics' and materialmen's liens and privileges arising in the ordinary course of business which relate to Indebtedness not yet due or delinquent or the validity or amount of which are being contested in good faith and in respect of which adequate provision for payment has been made; any lien or privilege arising out of judgments or awards with respect to which the Borrower is prosecuting an appeal or proceedings for review and with respect to which it has secured a stay of execution pending that appeal or proceedings for

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

review (provided no Event of Default has resulted therefrom); or undetermined or inchoate Liens and privileges incidental to current operations which have not at such time been filed pursuant to law against the Borrower or the applicable Non• AltaLink Subsidiary or which relate to obligations not due or delinquent; or the deposit of cash or securities in connection with any Lien or privilege referred to in this paragraph (e);

(f) a Lien in cash or marketable debt securities in a sinking fund account established by the Borrower in support of a particular series of bonds under the Master Trust Indenture;

(g) any encumbrance, such as easements, rights-of-way, servitudes or other similar rights in land granted to or reserved by other Persons, rights-of-way for access, sewers, electric lines, telegraph and telephone lines, oil and natural gas pipe lines and other similar purposes, or zoning or other restrictions as to the Issuer's use of real property or interests therein, which do not in the aggregate materially impair its use in the operation of the Business;

(h) any right reserved to or vested in any municipality or governmental or other public authority (whether by statutory provision or otherwise) to terminate, purchase assets used in connection with, or require annual or other periodic payments as a condition to the continuance of, any lease, licence, franchise, grant or permit;

(i) any lien or right of distress reserved in or exercisable under any lease for rent and for compliance with the terms of that lease;

(j) any Lien granted by the Borrower or the applicable Non-AltaLink Subsidiary to a public utility or any municipality or governmental or other public authority when required by that utility, municipality or other authority in connection with the operations of the Borrower;

(k) any reservation, limitation, proviso or condition, if any, expressed in any original grants to the Borrower or the applicable Non-AltaLink Subsidiary from the Crown; and

(1) any extension, renewal, alteration, substitution or replacement, in whole or in part, of any Lien referred to in any of the foregoing paragraphs, provided that the Lien is limited to all or part of the same property that secured the Lien and the principal amount of the secured Indebtedness is not increased by that action.

"Preferred Securities" means any securities which on the date of issue by a Person (a) have a term to maturity of more than thirty (30) years; (b) are unsecured and rank subordinate to the unsecured and unsubordinated Indebtedness of that Person outstanding on that date; (c) entitle that Person to satisfy the obligation to pay the principal or face amount by issuing partnership units, limited partnership units or other securities evidencing an ownership interest, (d) entitle that Person to defer the payment of interest for more than four (4) years without causing an event of default to occur, and (e) entitle

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

that Person to satisfy the obligation to make payments of interest by issuing partnership units, limited partnership units or other securities evidencing an ownership interest.

"Prime Rate" means for any day, the rate of interest per annum equal to the greater of (i) the per annum rate of interest quoted or established as the "prime rate" of the Agent which it quotes or establishes for such day as its reference rate of interest in order to determine interest rates for commercial loans in Canadian Dollars in Canada to its Canadian borrowers; and (ii) the average rate for Canadian Dollar banker's acceptances having a term of one month that appears on Reuters Service page CDOR (or such other page as is a replacement page for such banker's acceptances) at approximately 10:00 a.m. (Toronto time) on such day plus 75 basis points per annum, adjusted automatically with each quoted or established change in such rate, all without the necessity of any notice to the Borrower or any other Person.

"Prime Rate Loan" means any Loan in Canadian Dollars with respect to which interest is calculated under this Agreement for the time being on the basis of the Prime Rate.

"Principal Property" means any of the Borrower's fixed assets from time to time.

"Purchase Money Mortgage" means any Lien created, issued or assumed by a Person to secure a Purchase Money Obligation of such Person; provided that the Lien is limited only to the assets acquired or constructed (together with all improvements and accessions thereto and proceeds thereof) using the funds advanced to such Person in connection with that Purchase Money Obligation.

"Purchase Money Obligation" means, with respect to any Person, Indebtedness of that Person incurred or assumed to finance the cost, in whole or in part, of the acquisition or construction of any equipment, real property or fixtures, and the cost of installation and any improvements thereto, so long as the Indebtedness is incurred or assumed within twenty-four (24) months after the purchase of that equipment, real property or fixture or the completion of that construction, installation or improvement, as the case may be, and includes any extension, renewal or refunding of any of that Indebtedness, so long as the principal amount thereof outstanding on the date of the extension, renewal or refunding is not increased.

"Rating Agency" means DBRS or Standard & Poor's and any other nationally recognized credit rating agency approved by the Majority Lenders.

"RBC" means Royal Bank of Canada, its successors and permitted assigns.

"Register" has the meaning specified in Section 20.l(c).

"Related Parties" means, with respect to any Person, such Person's Affiliates and the directors, officers, employees and agents of such Person and of such Person's Affiliates.

"Release" means the method by which a Contaminant comes to be in the environment at large and includes discharging, spraying, injection, abandonment, depositing, spilling, leaking, seeping, pouring, emitting, emptying, throwing, dumping, placing and exhausting, and when used as a noun has a correlative meaning.

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

"Sale-Leaseback Transaction" means, with respect to any Person, any direct or indirect arrangement entered into after the date hereof pursuant to which such Person (or one or more of its Affiliates) transfers or causes the transfer of any Assets to another Person and leases such Assets back from such Person.

"Schedule I Bank" means a bank listed on Schedule I under the Bank Act (Canada).

"Schedule II Bank" means a bank listed on Schedule II under the Bank Act (Canada).

"Schedule III Bank" means a bank listed on Schedule Ill under the Bank Act (Canada).

"Senior Bonds, Series 05-1" means the 5.019% Series 05-1 senior bonds issued by the Borrower under the Master Trust Indenture and the Series 05-1 Supplemental Indenture.

"Senior Bonds, Series 09-1" means the 5.207% Series 09-1 senior bonds issued by the Borrower under the Master Trust Indenture and the Series 09-1 Supplemental Indenture.

"Senior Pledged Bond, Series 1" means the One Hundred Sixty Million Canadian Dollars (Cdn.$160,000,000) Senior Pledged Bond, Series 1 of the Borrower, issued and certified under the Master Trust Indenture in respect of the Existing Credit Agreement.

"Senior Pledged Bond, Series 2" means the Three Hundred and Fifty Million Canadian Dollars (Cdn.$350,000,000) Senior Pledged Bond, Series 2 of the Borrower, issued and certified on or about the date of this Agreement under the Master Trust Indenture.

"Series 05-1 Supplemental Indenture" means the Series 05-1 Supplemental Indenture between the Borrower, the General Partner and the Trustee dated as of the 21st day of November, 2005 pursuant to which the Borrower issued the Senior Bonds, Series 05-1, as such indenture may be amended, supplemented or modified from time to time.

"Series 09-1 Supplemental Indenture" means the Series 09-1 Supplemental Indenture between the Borrower, the General Partner and the Trustee dated as of the 16th day of December, 2009 pursuant to which the Borrower issued the Senior Bonds, Series 09-1, as such indenture may be amended, supplemented or modified from time to time.

"Standard & Poor's" means Standard & Poor' s Ratings Service and its successors for so long as it shall perform the functions of a securities rating agency.

"Subsidiary" means (a) any corporation of which there is owned, directly or indirectly, by the Borrower and/or by or for any corporation in like relation to the Borrower, voting shares which, in the aggregate, entitle the holders thereof to cast more than fifty per cent (50%) of the votes which may be cast by the holders of the outstanding voting shares of such first mentioned corporation for the election of its directors and includes any corporation in like relation to a Subsidiary; or (b) any other Person of which at least a majority of voting ownership interest is at the time, directly or indirectly, owned by the Borrower and/or by any Person in like relation to the Borrower.

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

"Taxes" means all present or future taxes, levies, imposts, duties, deductions, withholdings, assessments, fees or other charges imposed by any Governmental Authority, including any interest, additions to tax or penalties applicable thereto.

"Third Supplemental Indenture" means the Third Supplemental Indenture between the Borrower, the General Partner and the Trustee dated as of the date hereof and attached hereto as Schedule 8, pursuant to which the Borrower shall issue the Senior Pledged Bond, Series 2, as such indenture may be amended, supplemented or modified from time to time.

"Trustee" means BNY Trust Company of Canada, as trustee under the Master Trust Indenture or any successor thereof.

"Undisbursed Credit" means, at any time, the excess, if any, of the Committed Amount then in effect over the Canadian Dollar Amount of all Accommodations then outstanding under the Credit Facility.

"U.S. Base Rate" means, for any day, the rate of interest per annum equal to the greater of (i) the per annum rate of interest which the Agent (or such other Person as agreed to by the Borrower and the Agent) quotes or establishes for such day as its reference rate of interest for loans in U.S. Dollars to borrowers in Canada; and (ii) the Federal Funds Rate plus 50 basis points per annum, adjusted automatically with each quoted or established change in such rate, all without the necessity of any notice to Borrower or any other Person.

"U.S. Base Rate Loan" means any Loan in U.S. Dollars with respect to which interest is calculated under this Agreement for the time being on the basis of the U.S. Base Rate.

"U.S. Dollars" or "U.S.$" means lawful money of the United States of America.

1.2    References.

The terms "ARTICLE", "Section", "subsection" or "paragraph" followed by a number refer to the specified ARTICLE, Section, subsection or paragraph of this Agreement unless otherwise expressly stated or the context otherwise requires. References to contracts, agreements or instruments, unless otherwise specified, are deemed to include all present and future amendments, supplements, restatements or replacements to or of such contracts, agreements or instruments, provided that such amendments, supplements, restatements or replacements to or of such contracts, agreements or instruments have been, if applicable, approved or consented to and otherwise made in accordance with the provisions of this Agreement;

1.3    Headings.

The Article or Section or other headings contained in this Agreement are inserted for convenience only and shall not affect the meaning or construction of any of the provisions of this Agreement.

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

1.4    Included Words.

Words importing the singular number only shall include the plural and vice versa where the context requires. The word "include" and derivatives thereof means "include without limitation".

1.5    Accounting Terms.

Subject to this Section 1.5, all accounting terms not otherwise defined in this Agreement shall have the meanings assigned to them by GAAP. The Borrower may adopt new accounting policies from time to time (including with respect to IFRS) whether such adoption is compelled by accounting or regulatory bodies having jurisdiction or at its own discretion. In the event that any changes to accounting policies result in a material change in the calculation of the financial covenants or financial covenant thresholds or terms used in this Agreement or any other Loan Document, the Borrower, the Agent and the Lenders agree to enter into negotiations in order to amend such provisions of this Agreement or such Loan Document, as applicable, so as to equitably reflect such accounting changes with the desired result that the criteria for evaluating the Borrower's or any of its Subsidiary's financial condition, financial covenants, financial covenant thresholds or terms used in this Agreement or any other Loan Document shall be the same after such accounting changes as if such accounting changes had not been made; provided, however, that the agreement of the Majority Lenders to any required amendments of such provisions shall be sufficient to bind all Lenders. If the Borrower and the Majority Lenders cannot agree upon the required amendments immediately prior to the date of implementation of any accounting policy change, then all calculations of financial covenant, financial covenant thresholds or terms used in this Agreement or any other Loan Document shall be prepared and delivered on the basis of accounting policies of the Borrower as at the date hereof without reflecting such accounting policy change.

1.6    Time.

Unless otherwise expressly stated, any reference herein to a time shall mean local time in

Calgary, Alberta.

1.7    Currency.

Unless otherwise specified herein, or the context otherwise requires, all statements of or references to dollar amounts in this Agreement and the Loan Documents shall mean Canadian dollars.

1.8    Certificates and Opinions.

(a) Unless otherwise provided in a particular Schedule to this Agreement, each certificate and each opinion furnished pursuant to any provision of this Agreement shall specify the Section or Sections under which such certificate or opinion is furnished, shall include a statement that the Person making such certificate or giving such opinion has read the provisions of this Agreement relevant thereto and shall include a statement that, in the opinion of such Person, such Person has made such examination and investigation as is necessary to

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

enable such Person to express an informed opinion on the matters set out in the certificate or opinion.

(b) Whenever the delivery of a certificate or opinion is a condition precedent to the taking of any action by the Agent or a Lender or Lenders under this Agreement, the truth and accuracy of the facts and opinions stated in such certificate or opinion shall in each case be conditions precedent to the right of the Borrower to have such action taken, and each statement of fact contained therein shall be deemed to be a representation and warranty of the Borrower for the purposes of this Agreement.

1.9    Amendment and Restatement; No Novation

The parties hereto acknowledge and confirm that this Amended and Credit Agreement does not constitute a novation of the Existing Credit Agreement and that all debts, liabilities and obligations (including without limitation any issued and outstanding Documentary Credits) of the Borrower under the Existing Credit Agreement (i) shall be debts, liabilities and obligations of the Borrower under this Amended and Restated Credit Agreement, (ii) shall remain unaffected, except as amended hereby and (iii) shall constitute "Obligations" for the purposes of the Third Supplemental Indenture and the Senior Pledged Bond, Series 2.

1.10    Schedules.

The following are the Schedules attached to and forming part of this Agreement:

SCHEDULE 1	Borrower's Certificate of Compliance
SCHEDULE 2(A)	Borrowing Notice
SCHEDULE 2(B)	Notice of Rollover
SCHEDULE 2(C)	Conversion Option Notice
SCHEDULE 3	Notice of Extension
SCHEDULE 4	Form of Issue Notice
SCHEDULE 5	Assignment and Assumption
SCHEDULE 6	Commitments of the Lenders
SCHEDULE 6.1(a)	Form of Notice of Repayment
SCHEDULE 7	Form of Senior Pledged Bond, Series 2
SCHEDULE 8	Form of Supplemental Indenture
SCHEDULE 9.1(a)	Credit Party and Subsidiary Information
SCHEDULE 10	Material Agreements

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

-25-

ARTICLE 2

AMOUNT AND TERMS OF THE CREDIT FACILITY

2.1    Credit Facility.

(a) Subject to and upon the terms and conditions set forth in this Agreement, effective upon the Effective Date, the existing revolving credit facility under the Existing Credit Agreement shall be amended and restated as a revolving term credit facility in the maximum aggregate principal amount equal to three hundred million ($300,000,000.00) and the Lenders hereby agree to establish in favour of the Borrower such revolving term credit facility by way of Prime Rate Loans, U.S. Base Rate Loans, Bankers' Acceptances and LIBOR Loans. The Credit Facility shall also include a sub-facility, to the maximum aggregate Canadian Dollar Amount of Ten Million Canadian Dollars (Cdn.$10,000,000), to be provided by the Documentary Credit Lender only by way of Documentary Credits on such terms as are agreed upon between the Borrower and the Documentary Credit Lender. The aggregate Canadian Dollar Amount of all Accommodations outstanding at any time under this Credit Facility shall not exceed the Committed Amount.

2.2    Cancellation.

Subject to the provisions of ARTICLE 6, the Borrower may, at any time, by giving not less than two (2) Business Days' prior written notice of cancellation to the Agent, cancel all or any part of the Undisbursed Credit as designated by the Borrower without penalty, provided that, if it is a part only, the minimum amount cancelled is One Million Canadian Dollars (Cdn.$1,000,000) or any multiples of One Million Canadian Dollars (Cdn.$1,000,000) in excess thereof. Effective on the date of cancellation set out in the applicable notice of cancellation, the Credit Facility and the Committed Amount shall be permanently reduced by the amount of Canadian Dollars stated in the notice of cancellation.

2.3    Use of Proceeds.

The proceeds of the Credit Facility shall be used by the Borrower for operating expenses, capital expenditures and working capital needs of the Borrower and AltaLink and their Subsidiaries.

2.4    Particulars of Borrowings.

(a) Notwithstanding any contrary provision contained in the Loan Documents, in the event of any conflict or inconsistency between any of the provisions in this Agreement and any of the provisions in the Loan Documents, as against the parties hereto, the provisions of this Agreement shall prevail.

(b) No Borrowing from any Lender shall be obtained at any time for any period which would extend beyond the Maturity Date of such Lender.

(c) Subject to the provisions hereof, any Accommodation which is repaid at any time prior to the expiry of the Maturity Date may be subsequently re-drawn.

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

-26-

2.5    Borrowing Notice.

Whenever the Borrower desires to obtain a Borrowing (other than in the case of a Documentary Credit) it shall give to the Agent prior written notice in the form attached as Schedule 2(A), (B) or (C), as applicable (each, a "Borrowing Notice"), specifying, as applicable:

(i) the amount, currency and type or types of Accommodation desired;

(ii) the details of the account of the Borrower to which payment of the Borrowing is to be wired or otherwise made, if applicable;

(iii) the requested Borrowing Date;

(iv) if such Borrowing includes a Bankers' Acceptance, the term thereof;

(v) if applicable, the Accommodation to be renewed or converted and, where such Accommodation includes any Loan, the currency thereof and the interest rate applicable thereto;

(vi) if such Borrowing includes a Loan, whether it is to be a Prime Rate Loan, U.S. Base Rate Loan or a LIBOR Loan; and

(vii) if such Borrowing includes a LIBOR Loan, the LIBOR Interest Period to be applicable to such Loan.

The Borrowing Notice shall be given to the Agent not later than 10:00 a.m.:

(viii) on the Business Day preceding the applicable Borrowing Date, if the new Accommodation or any Accommodation to be renewed or converted is by way of Prime Rate Loans or U.S. Base Rate Loans;

(ix) on the Business Day preceding the applicable Borrowing Date, if the new Accommodation or any Accommodation to be renewed or converted is by way of Bankers' Acceptances; and

(x) on the third Business Day preceding the applicable Borrowing Date, if any new Accommodation or any Accommodation to be renewed or converted is a LIBOR Loan.

In all other cases, the Borrowing Notice shall be given to the party entitled thereto on the applicable Borrowing Date.

Any Borrowing Notice received by the Agent on any Business Day after 10:00 a.m. shall be deemed to have been given to such party on the next succeeding Business Day, unless otherwise agreed by the Lenders.

2.6    Books of Account.

The Agent is hereby authorized to open and maintain books of account and other books and records evidencing all Bankers' Acceptances accepted and cancelled and all Loans advanced and

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

-27-

repaid and all other amounts from time to time owing by the Borrower to the Lenders under this Agreement including interest, acceptance, Documentary Credits and standby and other fees, and to enter into such books and records details of all amounts from time to time owing, paid or repaid by the Borrower under this Agreement. The Borrower acknowledges, confirms and agrees with the Agent that all such books and records kept by the Agent will constitute prima facie evidence of the balance owing by the Borrower under this Agreement; provided, however, that the failure to make any entry or recording in such books and records shall not limit or otherwise affect the obligations of the Borrower under this Agreement. Notwithstanding the foregoing, each Lender is responsible for maintaining its own records as to Advances made by it, and in the event of any inconsistency between such Lender's and the Agent's records, the Agent's records shall govern, absent manifest error.

2.7    Co-ordination of Prime Rate and U.S. Base Rate Loans.

Each Lender shall advance its Applicable Percentage of each Prime Rate and U.S. Base Rate Loan in accordance with the following provisions:

(a) the Agent shall advise each Lender of its receipt of a notice from the Borrower pursuant to Section 2.5, on the day such notice is received and shall, as soon as possible, advise each Lender of such Lender's Applicable Percentage of any Prime Rate or U.S. Base Rate Loan requested by the notice;

(b) each Lender shall deliver its Applicable Percentage of such Loan to the Agent's Account at the Branch not later than 11 :00 a.m. on the Borrowing Date;

(c) when the Agent determines that all the conditions precedent to a Borrowing specified in this Agreement have been met or waived, it shall advance to the Borrower the amount delivered by each Lender by wiring such amount to relevant account of the Borrower before 12:00 noon on the Borrowing Date, but if the conditions precedent to the Borrowing are not met or waived by such time, the Agent shall return the funds to the Lenders or invest them in an overnight investment as orally instructed by each Lender until such time as the Loan is advanced.

2.8    Bankers' Acceptances.

(a) Power of Attorney for the Execution of Bankers' Acceptances. To facilitate acceptance of the Borrowings by way of Bankers' Acceptances, the Borrower hereby appoints each Lender as its attorney to sign and endorse on its behalf, in handwriting or by facsimile or mechanical signature as and when deemed necessary by such Lender, blank forms of Drafts. In this respect, it is each Lender's responsibility to maintain an adequate supply of blank forms of Drafts for acceptance under this Agreement. The Borrower recognizes and agrees that all Drafts signed and/or endorsed on its behalf by a Lender shall bind the Borrower fully and effectively as if signed in the handwriting of and duly issued by the proper signing officers of the Borrower. Each Lender is hereby authorized to issue such Drafts endorsed in blank in such face amounts as may be determined by such Lenders; provided that the aggregate amount thereof is equal to the aggregate

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

-28-

amount of Bankers' Acceptances required to be accepted and purchased by such Lender. No Lender shall be liable for any damage, loss or other claim arising by reason of any loss or improper use of any such instrument, except the gross negligence or wilful misconduct of the Lender or its officers, employees, agents or representatives. Each Lender shall maintain a record with respect to Bankers' Acceptances held by it in blank hereunder, voided by it for any reason, accepted and purchased by it hereunder, and cancelled at the respective maturities. Each Lender agrees to provide such records to the Borrower at the Borrower's expense upon request.

Drafts drawn by the Borrower to be accepted as Bankers' Acceptances shall be signed by a duly authorized officer or officers of the Borrower or by its attorneys. Notwithstanding that any Person whose signature appears on any Bankers' Acceptance may no longer be an authorized signatory for the Borrower at the time of issuance of a Bankers' Acceptance; that signature shall nevertheless be valid and sufficient for all purposes as if the authority had remained in force at the time of issuance and any Bankers' Acceptance so signed shall be binding on the Borrower. Upon tender of each Draft the Borrower shall pay to the Lender the fee specified in Section 5.1 with respect to such Draft.

(b) Sale of Bankers' Acceptances. It shall be the responsibility of each Lender unless otherwise requested by the Borrower, to purchase its Bankers' Acceptances at a discount rate equal to the BA Discount Rate.

In accordance with the procedures set forth in Sections 2.8(c)(i) and 2.8(c)(iii), unless the Borrower requests the Lenders not to purchase the subject Bankers' Acceptances, the Agent will make BA Discount Proceeds received by it from the Lenders available to the Borrower on the Borrowing Date by wiring such amount to the bank account of the Borrower identified to the Agent.

Notwithstanding the foregoing, if in the determination of the Majority Lenders acting reasonably a market for Bankers' Acceptances does not exist at any time, or the Lenders collectively cannot for other reasons readily sell Bankers' Acceptances or perform their other obligations under this Agreement with respect to Bankers' Acceptances, then upon at least two Business Days' written notice by the Agent to the Borrower, the Borrower's right to request Accommodation by way of Bankers' Acceptances shall be and remain suspended until the Agent notifies the Borrower that any condition causing such determination no longer exists.

(c) Coordination of BA Borrowings. Each Lender shall advance its Applicable Percentage of each Borrowing by way of Bankers' Acceptances in accordance with the following:

(i) the Agent, promptly following receipt of a notice from the Borrower pursuant to Section 2.5 requesting a Borrowing by way of Bankers' Acceptances, shall advise each Lender of the aggregate Face Amount and term(s) of the Bankers' Acceptances to be accepted by it, which term(s)

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

-29-

shall be identical for all Lenders. The aggregate Face Amount of Bankers' Acceptances to be accepted by a Lender shall be determined by the Agent by reference to the respective Commitments of the Lenders, except that, if the Face Amount of a Bankers' Acceptance would not be One Hundred Thousand Canadian Dollars (Cdn.$100,000) or a whole multiple thereof, the Face Amount shall be increased or reduced by the Agent in its sole discretion to the nearest whole multiple of One Hundred Thousand Canadian Dollars (Cdn.$100,000);

(ii) unless requested by the Borrower not to purchase the subject Bankers' Acceptances, each Lender shall transfer to the Agent at the Branch for value on each Borrowing Date immediately available Canadian Dollars in an aggregate amount equal to the BA Discount Proceeds of all Bankers' Acceptances accepted and sold or purchased by the Lender on such Borrowing Date, net of the applicable Bankers' Acceptance Fees in respect of such Bankers' Acceptances. Each Lender shall also advise the Agent (which shall promptly give the relevant particulars to the Borrower) as soon as possible of the discount rate at which it has sold or purchased its Bankers' Acceptances;

(iii) if the Borrower requests the Lenders not to purchase the subject Bankers' Acceptances, each Lender will forward the subject Bankers' Acceptances to the Agent for delivery against payment of the applicable Bankers' Acceptance Fees; and

(iv) if the Agent determines that all the conditions precedent to a Borrowing specified in this Agreement have been met or waived, it shall advance to the Borrower the amount delivered by each Lender by wiring such amount to the account of the Borrower prior to 12:00 noon on the Borrowing Date, or, if applicable shall deliver the Bankers' Acceptances as directed by the Borrower, but if the conditions precedent to the Borrowing are not met or waived by 2:30 p.m. on the Borrowing Date, the Agent shall return the funds to the Lenders or invest them in an overnight investment as orally instructed by each Lender until such time as the Advance is made.

(d) Payment. The Borrower shall provide for the payment to the Agent for the account of the Lenders of the Face Amount of each Bankers' Acceptance at its maturity, either by payment of the amount thereof or through utilization of the Credit Facility in accordance with this Agreement (by rolling over the Bankers' Acceptance or converting it into other Accommodation or a combination thereof). The Borrower will continue to be required to provide as aforesaid for each Bankers' Acceptance at maturity notwithstanding the fact that a Lender may be the holder of the Bankers' Acceptance which has been accepted by such Lender.

(e) Collateralization.

(i) If any Bankers' Acceptance is outstanding on the Demand Date or the Maturity Date, the Borrower shall on such date pay to the Agent for the

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:00000000.5

-30-

account of the Lenders at the Branch in Canadian Dollars an amount equal to the Face Amount of such Bankers' Acceptance.

(ii) All funds received by the Agent pursuant to Section 2.8(e)(i) shall be held by the Agent for set-off on the maturity date of the Bankers' Acceptance against the liability of the Borrower to the Lender in respect of such Bankers' Acceptance and, until then, shall be invested from time to time in such form of investment at the Branch designated by the Borrower and approved by the Agent, for a term corresponding to the maturity date of the applicable Bankers' Acceptance and shall bear interest at the rate payable by the Agent on deposits of similar currency, amount and maturity. The balance of all such funds (together with interest thereon) held by the Agent will be applied to repayment of all debts and liabilities of the Borrower to the Lender under this Agreement and the Loan Documents and following repayment of all such debts and liabilities any amount remaining shall be paid to the Borrower or as otherwise required bylaw.

(f) Notice of Rollover or Conversion. The Borrower shall give the Agent notice in the form attached as Schedule 2(B) or Schedule 2(C) hereto, as applicable, not later than 11:00 a.m. on the Business Day prior to the maturity date of Bankers' Acceptances, specifying the Accommodation into which the Bankers' Acceptances will be renewed or converted on maturity.

(g) Obligations Absolute. The obligations of the Borrower with respect to Bankers' Acceptances under this Agreement shall be unconditional and irrevocable, and shall be paid strictly in accordance with the terms of this Agreement under all circumstances, including, without limitation, the following circumstances:

(i) any lack of validity or enforceability of any Draft accepted by a Lender as a Bankers' Acceptance; or

(ii) the existence of any claim, set-off, defence or other right which the Borrower may have at any time against the holder of a Bankers' Acceptance, a Lender or any other person or entity, whether in connection with this Agreement or otherwise.

(h) Shortfall on Drawdowns, Rollovers and Conversions. The Borrower agrees that the difference between the:

(i) amount of a Borrowing requested by the Borrower by way of Bankers' Acceptances and the actual proceeds of the Bankers' Acceptances;

(ii) actual proceeds of a Bankers' Acceptance and the amount required to pay a maturing Bankers' Acceptance if a Bankers' Acceptance is being rolled over; and

(iii) actual proceeds of a Bankers' Acceptance and the amount required to repay any Borrowing which is being converted to a Bankers' Acceptance,

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

-31-

shall be funded and paid by the Borrower from its own resources, by 11 :00 a.m. (Calgary time) on the day of the Borrowing or may be advanced as a Prime Rate Loan if the Borrower is otherwise entitled to such Accommodation and the Agent will apply such Prime Rate Loan to discharge the obligations of the Borrower under such Bankers' Acceptance. Any such Prime Rate Loan so made shall be subject to the terms and provisions of this Agreement, including payment of interest at the rates specified in Section 4.1.

(i) Depository Bills and Notes Act. At the option of any Lender (and notwithstanding Section 2.8 (a), Bankers' Acceptances under this Agreement to be accepted by that Lender may be issued in the form of Depository Bills for a deposit with the Canadian Depository for Securities Limited pursuant to the Depository Bills and Notes Act (Canada). All Depository Bills so issued shall be governed by the provisions of this Section 2.8, as applicable.

(j) BA Equivalent Loans. Whenever the Borrower requests an Advance that includes Banker's Acceptances, each Lender that is not permitted by Applicable Law or by customary market practice to accept a Banker's Acceptance (a "Non BA Lender") shall, in lieu of accepting its pro rata amount of such Banker's Acceptances, make available to the Borrower on the Borrowing Date a non-interest bearing loan (a "BA Equivalent Loan") in Canadian Dollars in an amount equal to the BA Discount Proceeds of its pro rata amount of the Banker's Acceptances, based on the BA Discount Rate applicable to such Lender. Each Non BA Lender shall also be entitled to deduct from the BA Equivalent Loan an amount equal to the Banker's Acceptance Fee that would have been applicable had it been able to accept Banker's Acceptances. The BA Equivalent Loan shall have a term equal to the term of the Banker's Acceptances that the Non BA Lender would otherwise have accepted and the Borrower shall, at the end of that term, be obligated to pay the Non BA Lender an amount equal to the aggregate face amount of the Banker's Acceptances that it would otherwise have accepted. All provisions of this Agreement applicable to Banker's Acceptances and Lenders that accept Banker's Acceptances shall apply mutatis mutandis to BA Equivalent Loans    and Non BA Lenders and, without limiting the foregoing, Accommodations shall include BA Equivalent Loans.

2.9    LIBOR Loans.

(a) If the Agent determines in (which determination shall be made in good faith and shall be conclusive and binding) in connection with any request for a LIBOR Loan or a conversion or continuation thereof that (a) U.S. Dollar deposits are not being offered to banks in the applicable offshore U.S. Dollar market for the applicable amount and LIBOR Period of such LIBOR Loan, or adequate and reasonable means do not exist for determining the LIBOR Rate for such LIBOR Loan, or (b) if the Majority Lenders determine and notify the Agent that the LIBOR Rate for such LIBOR Loan does not adequately and fairly reflect the cost to such Lenders of funding such LIBOR Loan, then the Agent shall promptly notify the Borrower and all Lenders. Thereafter, the obligation of the Lenders to make or maintain LIBOR Loans shall be suspended until the Agent revokes such

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

-32-

notice. Upon receipt of such notice of suspension, the Borrower may revoke any pending request for a LIBOR Loan, or conversion or continuation of a LIBOR Loan, or, failing that, will be deemed to have converted such request into a request for a U.S. Base Rate Loan in the amount specified therein.

(b) The Borrower shall give the Agent notice in writing not later than 10:00 a.m. on the third Business Day prior to the expiry of the LIBOR Interest Period in respect of a LIB OR Loan specifying the new LIBOR Interest Period (if the LIBOR Loan is to be renewed) or the Accommodation into which the LIBOR Loan will be converted on such expiry.

(c) If no notice is given by the Borrower as provided in clause (a) or (b) above, the LIBOR Loan will be automatically converted on the expiration of the then applicable LIBOR Interest Period to a U.S. Base Rate Loan, without prejudice to the Lenders' rights in respect of the failure to give the notice and whether or not a Default or Event of Default has occurred, in the principal amount of the funds required to be provided to the Agent for the account of the Lenders pursuant to this Section.

(d) If any LIBOR Loan is outstanding on the Demand Date or the Maturity Date, the Borrower shall on such date pay to the Agent for the account of the Lenders at the Branch in U.S. Dollars an amount equal to the principal amount of such LIBOR Loan.

(e) All funds received by the Agent pursuant to clause (d) shall be held by the Agent for set-off on the maturity date of the LIBOR Loan against the liability of the Borrower to the Lenders in respect of such LIBOR Loan and, until then, shall be invested from time to time in such form of investment at the Branch designated by the Borrower and approved by the Agent, for a term corresponding to the maturity date of the applicable LIBOR Loan and shall bear interest at the rate payable by the Agent on deposits of similar currency, amount and maturity. The balance of all such funds (together with interest thereon) held by the Agent will be applied to repayment of all debts and liabilities of the Borrower to the Lenders under this Agreement and the Loan Documents and following repayment of all such debts and liabilities any amount remaining shall be paid to the Borrower or as otherwise required by law.

(f) Each Lender shall advance its Applicable Percentage of each LIBOR Loan in accordance with the following provisions:

(i) the Agent shall advise each Lender of its receipt of a notice from a Borrower pursuant to Section 2.5 on the day such notice is received and shall, as soon as possible, advise each Lender of the amount of its Applicable Percentage of any Borrowing by way of LIBOR Loan requested by the notice;

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

-33-

(ii) each Lender shall deliver its share of the Borrowing to the Agent's Account at the Branch not later than 11:00 a.m. on the Borrowing Date; and

(iii) when the Agent determines that all the conditions precedent to a Borrowing specified in this Agreement have been met, it shall advance to the Borrower the amount delivered by each Lender by wiring such amount to the account of the Borrower, but if the conditions precedent to the Borrowing are not met by 2:30 p.m. on the Borrowing Date, the Agent shall return the funds to the Lenders or invest them in an overnight investment as orally instructed by each Lender until such time as the LIBOR Loan is advanced.

2.10    Safekeeping of Drafts.

The responsibility of the Agent and the Lenders in respect of the safekeeping of Drafts, Bankers' Acceptances and other bills of exchange which are delivered to any of them hereunder shall be limited to the exercise of the same degree of care which such party gives to its own property, provided that such party shall not be deemed to be an insurer thereof.

2.11    Certification to Third Parties.

The Agent will promptly provide to the Borrower and third parties at the request of the Borrower a certificate as to the Canadian Dollar Amount of Accommodations outstanding from time to time under this Agreement, and giving such other particulars in respect of the Indebtedness as the Borrower may reasonably request.

ARTICLE 3

DOCUMENTARY CREDITS

3.1    Documentary Credits.

The Documentary Credit Lender agrees, on the terms and conditions of this Agreement, to issue Documentary Credits under the Credit Facility only for the account of the Borrower from time to time on any Business Day prior to the Maturity Date in respect of the Documentary Credit Lender.

3.2    Procedure for Issue.

(a) Each Issue shall be made on notice substantially in the form of Schedule 4 (an "Issue Notice") given by the Borrower to the Agent not later than 1:00 p.m. (Toronto time) on three (3) Business Day's notice. The Issue Notice shall be in substantially the form of Schedule 4 shall be irrevocable and binding on the Borrower and shall specify (i) the requested date of Issue (the "Issue Date"), (ii) the Type of Documentary Credit, (iii) the Face Amount of the Documentary Credit, (iv) the expiration date, and (v) the name and address of the Beneficiary. The Agent shall, upon receipt of an Issue Notice, provide a copy of the Issue Notice to the Documentary Credit Lender and to each other Lender.

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

-34-

(b) Not later than 1:00 p.m. (Toronto time) on the Issue Date, the Documentary Credit Lender shall issue a Documentary Credit completed in accordance with the Issue Notice in the appropriate form. Upon receipt of the Documentary Credits and upon fulfilment of the conditions set forth in ARTICLE 11, the Agent shall deliver the Documentary Credits to or to the order of the Borrower.

(c) No Documentary Credit shall require that payment against a conforming draft be made on the same Business Day upon which the draft was presented, unless such presentation is made before 1:00 p.m. (Toronto time) on such Business Day.

(d) Prior to the Issue Date, the Borrower shall provide a precise description of the documents and the verbatim text of any certificates to be presented by the Beneficiary which, if presented by the Beneficiary, would require the Documentary Credit Lender, to make payment under the Documentary Credit. The Documentary Credit Lender may require reasonable changes in any such document or certificate.

3.3    Form of Documentary Credits.

Each Documentary Credit (i) shall be in Canadian Dollars or United States Dollars, (ii) shall be dated the Issue Date (iii) shall have an expiration date on a Business Day which occurs no more than one year after the Issue Date (provided, however, no expiration date shall be a date after the Maturity Date), and (iv) shall comply with the definition of Documentary Credit. Without limiting Section 2.l(a), the aggregate of the Canadian Dollar Amount of the Face Amounts of all issued Documentary Credits shall not exceed $10,000,000 at any time.

3.4    Reimbursements of Amounts Drawn.

(a) At or before 11 :00 a.m. (Toronto time) on the date specified by a Beneficiary as a drawing date under a Documentary Credit, the Borrower shall pay to the Documentary Credit Lender an amount in same day funds equal to the amount to be drawn by the Beneficiary under the Documentary Credit.

(b) If the Borrower fails to pay to the Documentary Credit Lender the amount drawn under any Documentary Credit, the unpaid amount due and payable shall be converted automatically as of such date, and without the necessity for the Borrower to give any Borrowing Notice pursuant to Section 2.5, to a Prime Rate Loan, where the Documentary Credit is denominated in Canadian Dollars and a U.S. Base Rate Loan is denominated in U.S. Dollars, made by the Lenders rateably under the Credit Facility.

3.5    Documentary Credit Participation.

(a) Each Lender shall acquire from the Documentary Credit Lender for the Lender's own account and risk, an undivided interest equal to the Lender's pro rata share of the Documentary Credit Lender's obligations and rights under each Documentary Credit together with any amount paid by the Documentary Credit Lender under a Documentary Credit. If an amount is drawn under any Documentary Credit and the Documentary Credit Lender is not reimbursed in full by the Borrower in accordance with the terms of this Agreement or if the amount is converted to an Advance pursuant to Section 3.4(b), each of the Lenders shall pay to the Documentary Credit

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

-35-

Lender, upon demand, an amount equal to such Lender's pro rata share of the amount which is not so reimbursed or shall acquire its pro rata share of the Advance into which the amount is converted, as the case may be.

(b) If any amount required to be paid by a Lender to the Documentary Credit Lender pursuant to Section (a) is not paid to the Documentary Credit Lender within two Business Days after the date the payment is due, the Lender shall pay to the Documentary Credit Lender, on demand, such amount together with interest, from the date the payment was to be made until the date it is actually made, at the prevailing interbank rate. A certificate of the Documentary Credit Lender, submitted to the relevant Lender with respect to any amounts owing under this Section shall be conclusive, absent manifest error.

(c) If, at any time after the Documentary Credit Lender has made a payment under any Documentary Credit and has received from the Lenders their pro rata share of such payment, the Documentary Credit Lender receives a payment in respect of the Documentary Credit (whether directly from the Borrower or otherwise), the Documentary Credit Lender will distribute to the Lenders their pro rata share of such payment; provided, however, if any payment so received by the Documentary Credit Lender shall be required to be returned by the Documentary Credit Lender, each Lender shall return to the Documentary Credit Lender the portion thereof previously distributed to it.

3.6    Risk of Documentary Credits.

(a) In determining whether to pay under a Documentary Credit, the Documentary Credit Lender shall be responsible only to determine that the documents and certificates required to be delivered under the Documentary Credit have been delivered and that they comply on their face with the requirements of the Documentary Credit.

(b) The reimbursement obligation of the Borrower under any Documentary Credit shall be unconditional and irrevocable and shall be paid strictly in accordance with the terms of this Agreement under all circumstances, including (i) any lack of validity or enforceability of a Documentary Credit, (ii) the existence of any claim, set-off, defence or other right which the Borrower may have at any time against a Beneficiary, the Documentary Credit Lender or any other Person, whether in connection with the Loan Documents and the transactions contemplated therein or any other transaction (including any underlying transaction between the Borrower and the Beneficiary), (iii) any certificate or other document presented with a Documentary Credit proving to be forged, fraudulent or invalid or any statement in it being untrue or inaccurate, (iv) the existence of any act or omission or any misuse of, a Documentary Credit or misapplication of proceeds by the Beneficiary, including any fraud in any certificate or other document presented with a Documentary Credit in each case unless, before payment of a Documentary Credit, (x) the Borrower has delivered to the Documentary Credit Lender a written notice of the fraud together with a written request that it refuse to honour such drawing, (y) the fraud by the Beneficiary has been established to the knowledge of the Documentary Credit Lender so as to make the fraud clear or obvious to the Documentary Credit Lender, and (z) in the case of fraud in the underlying transaction between the Borrower and the Beneficiary, the fraud is of such character as to make the demand for payment by the

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

-36-

Beneficiary under the Documentary Credit a fraudulent one, (v) payment by the Documentary Credit Lender under the Documentary Credit against presentation of a certificate or other document which does not comply with the terms of the Documentary Credit, unless such payment is inconsistent with the standards of reasonable care specified in the Uniform Customs and Practice for Documentary Credits (1993 Revision), ICC Publication 500 (or any replacement publication), or (vi) the existence of a Default or Event of Default.

(c) The Documentary Credit Lender shall not be responsible for (i) the validity or sufficiency of any instrument transferring or assigning or purporting to transfer or assign a Documentary Credit or the rights or benefits under it or proceeds of it, in whole or in part, which may prove to be invalid or ineffective for any reason, (ii) errors, omissions, interruptions or delays in transmission or delivery of any messages by mail, facsimile or otherwise, (iii) errors in interpretation of technical terms, (iv) any loss or delay in the transmission of any document required in order to make a drawing, and (v) any consequences arising from causes beyond the control of the Documentary Credit Lender, including the acts or omissions, whether rightful or wrongful, of any Governmental Authority. None of the above shall affect, impair, or prevent the vesting of any of the Documentary Credit Lender's rights or powers under this Agreement. Any action taken or omitted by the Documentary Credit Lender under or in connection with any Documentary Credit or the related certificates, if taken or omitted in good faith, shall not put the Documentary Credit Lender under any resulting liability to the Borrower provided that the Documentary Credit Lender acts in accordance with the standards of reasonable care specified in the Uniform Customs and Practice for Documentary Credits (1993 Revision), ICC Publication 500 (or any replacement publication).

3.7    Fees.

(a) The Borrower shall pay to the Agent, (i) on behalf of the Documentary Credit Lender, a non-refundable fronting fee in respect of each Documentary Credit equal to 0.25% of its Face Amount (the "L/C Fronting Fee"), and (ii) on behalf of each Lender, a fee equal to the Applicable Margin for Documentary Credits of the Face Amount of each Documentary Credit for the period during which the Documentary Credit is outstanding (the "L/C Maintenance Fee"). The UC Fronting Fee and the UC Maintenance Fee shall be calculated and payable quarterly in arrears on the first Business Day following the end of each Financial Quarter.

(b) The Borrower shall pay to the Documentary Credit Lender, upon the issuance, amendment or transfer of each Documentary Credit issued by the Documentary Credit Lender and each drawing made under it, the Documentary Credit Lender's standard and prevailing documentary and administrative charges for issuing, amending, transferring or drawing under, as the case may be, Documentary Credits of similar amount, term and risk.

3.8    Repayments.

(a) If the Borrower is required to repay the Loans pursuant to ARTICLE 2 or ARTICLE 12, then the Borrower shall pay to the Agent an amount equal to each Lender's contingent liability in respect of (i) any outstanding Documentary Credit, and (ii) any

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

-37-

Documentary Credit which is the subject matter of any order, judgment, injunction or other such determination (a "Judicial Order") restricting payment under and in accordance with such Documentary Credit or extending the Lender's liability under such Documentary Credit beyond its stated expiration date. Payment in respect of each Documentary Credit shall be due in the currency in which the Documentary Credit is denominated.

(b) The Documentary Credit Lender shall, with respect to any Documentary Credit, upon the later of:

(i) the date on which any final and non-appealable order, judgment or other such determination has been rendered or issued either terminating the applicable Judicial Order or permanently enjoining the Lender from paying under such Documentary Credit; and

(ii) the earlier of (i) the date on which either (x) the original counterpart of the Documentary Credit is returned to the Documentary Credit Lender for cancellation, or (y) the Documentary Credit Lender is released by the Beneficiary from any further obligations, and (ii) the expiry (to the extent permitted by any applicable law) of the Documentary Credit,

pay to the Borrower an amount equal to the difference between the amount paid to the Documentary Credit Lender pursuant to Section 3.8(a) and the amounts paid by the Documentary Credit Lender under the Documentary Credit.

3.9    Documentary Credits Outstanding Upon Default.

If any Documentary Credits are outstanding upon the occurrence of an Event of Default, the Borrower shall immediately pay to the Agent for the account of the Documentary Credit Lender an amount (the "Documentary Credit Deposit Amount") equal to the undrawn principal amount of the Documentary Credits. The Documentary Credit Deposit Amount shall be held by the Agent in an interest bearing account to be applied on any drawing by a Beneficiary and shall constitute "Obligations" under the Third Supplemental Indenture. If no drawing is made in respect of a Documentary Credit prior to its expiry date, the Documentary Credit Deposit Amount applicable thereto and any accrued interest thereon, or such part thereof as has not been paid out, shall be returned to the Borrower promptly following the expiry or cancellation of the Documentary Credit.

ARTICLE 4

INTEREST

4.1    Interest on Loans.

(a) Prime Rate Loan. Each Prime Rate Loan shall bear interest (both before and after demand, maturity, default and, to the extent permitted by law, judgment, with interest on overdue interest at the same rate) from and including the Borrowing Date for such Loan to, but not including, the date of repayment of such Loan on the unpaid principal amount of such Loan at a nominal rate per annum equal to the Prime Rate, plus the Applicable Margin then in effect, which shall, in each case, change automatically without notice to the Borrower as and when the Prime Rate shall change so that at all times the rates set forth above shall be the Prime Rate then in

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

-38-

effect. Interest on each Prime Rate Loan shall be computed on the basis of the actual number of days elapsed divided by 365 or 366, as applicable. Interest in respect of outstanding Prime Rate Loans shall be payable monthly in arrears on the first Business Day of each month; provided, however, that interest on overdue interest shall be payable on demand.

(b) U.S. Base Rate Loan. Each U.S. Base Rate Loan shall bear interest (both before and after demand, maturity, default and, to the extent permitted by law, judgment, with interest on overdue interest at the same rate) from and including the Borrowing Date for such Loan to, but not including, the date of repayment of such Loan on the unpaid principal amount of such Loan at a nominal rate per annum equal to the U.S. Base Rate, plus the Applicable Margin then in effect, which shall, in each case, change automatically without notice to the Borrower as and when the U.S. Base Rate shall change so that at all times the rates set forth above shall be the U.S. Base Rate then in effect. Interest on each U.S. Base Rate Loan shall be computed on the basis of the actual number of days elapsed divided by 365 or 366, as applicable. Interest in respect of outstanding U.S. Base Rate Loans shall be payable monthly in arrears on the first Business Day of each month; provided, however, that interest on overdue interest shall be payable on demand.

(c) LIBOR Loans. Each LIBOR Loan shall bear interest (both before and after demand, maturity, default and, to the extent permitted by law, judgment, with interest on overdue interest at the same rate) from and including the Borrowing Date for such LIBOR Loan to, but not including, the date of repayment thereof on the unpaid principal amount thereof at a nominal rate per annum equal to the LIBOR Rate determined by the Agent for each LIBOR Interest Period applicable to such LIBOR Loan plus the Applicable Margin in effect on the first day of such LIBOR Interest Period. Interest on each LIBOR Loan shall be computed on the basis of the actual number of days elapsed divided by three hundred and sixty (360). Interest in respect of each LIBOR Loan shall be payable on the last day of each LIBOR Interest Period applicable thereto and also, with respect to each LIBOR Interest Period which is longer than ninety (90) days, the last day of such LIBOR Interest Period and each date within such LIBOR Interest Period which is the first Business Day following the expiration of each ninety (90) day interval after the first day of such LIBOR Interest Period; provided, however, that interest on overdue interest shall be payable on demand.

4.2    LIBOR Interest Period Determination.

The Borrower shall select the duration of each LIBOR Interest Period by facsimile or telephone notice (to be confirmed the same day in writing) received by the Agent not later than 10:00 a.m. on the third Business Day preceding the applicable Borrowing Date. The first LIBOR Interest Period for any LIBOR Loan shall commence on (and include) the Borrowing Date for such LIBOR Loan, and each LIBOR Interest Period occurring thereafter for such LIBOR Loan shall commence on (and include) the day following the expiration of the next preceding LIBOR Interest Period. Notwithstanding the foregoing, if any LIBOR Interest Period would otherwise expire on a day which is not a Business Day, such LIBOR Interest Period shall expire on the next succeeding Business Day provided it is in the same calendar month, and otherwise shall expire on the preceding Business Day.

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

-39-

4.3    Interest on Overdue Amounts.

The Borrower will on demand pay interest to the Agent on all amounts (other than as provided in Section 4.1) payable by the Borrower pursuant to this Agreement that are not paid when due at the Prime Rate plus 2% per annum, in the case of amounts payable in Canadian Dollars, or the U.S. Base Rate plus 2% per annum, in the case of amounts payable in U.S. Dollars, in each case calculated daily and compounded monthly from the date of payment until paid in full (both before and after demand, maturity, default and, to the extent permitted by law, judgment), with interest on overdue interest at the same rate.

4.4    Other Interest.

The Borrower shall pay interest on all amounts payable hereunder at the rate specified herein or, if no rate is specified, at the U.S. Base Rate if the amount payable is in U.S. Dollars and otherwise at the Prime Rate calculated daily and compounded monthly, from the date due until paid in full (both before and after demand, maturity, default and, to the extent permitted by law, judgment).

4.5    Interest Act (Canada).

For the purpose of the Interest Act (Canada), the yearly rate of interest to which interest calculated on the basis of a year of 360 or 365 days is equivalent is the rate of interest as so determined multiplied by the actual number of days in such year divided by 360 or 365, respectively.

4.6    Deemed Reinvestment Principle.

For the purpose of the Interest Act (Canada), the principle of deemed reinvestment of interest shall not apply to any interest calculation under this Agreement and the rates of interest stipulated in this Agreement are intended to be nominal rates and not effective rates or yields.

4.7    Maximum Return.

It is the intent of the parties hereto that the return to the Lenders pursuant to this Agreement shall not exceed the maximum return permitted under the laws of Canada and if the return to the Lenders would, but for this provision, exceed the maximum return permitted under the laws of Canada, the return to the Lenders shall be limited to the maximum return permitted under the laws of Canada and this Agreement shall automatically be modified without the necessity of any further act or deed to give effect to the restriction on return set forth above.

ARTICLE 5

FEES

5.1    Acceptance Fees.

Upon the acceptance of any Draft pursuant to this Agreement, the Borrower will pay to the Agent for the account of the relevant Lenders an acceptance fee in Canadian Dollars calculated on the Face Amount and the term of such Draft, in accordance with the Applicable Margin in effect on the date of acceptance. The acceptance fees payable by the Borrower shall be

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

-40-

calculated on the Face Amount of the Bankers' Acceptance and shall be calculated on the basis of the number of days in the term of such Bankers' Acceptance.

5.2    Commitment Fee.

The Borrower shall pay to the Agent a commitment fee in Canadian Dollars so long as the Agent has not demanded or the Lenders have not ceased to make advances under Section 12.2, calculated in accordance with the Applicable Margin on the amount of the Undisbursed Credit in existence during the period of calculation and as adjusted automatically upon any change thereof. Accrued commitment fees shall be calculated quarterly and be due and payable quarterly in arrears on the first Business Day after the end of each quarter of each Fiscal Year of the Borrower.

5.3    Basis of Calculation of Fees.

The fees payable under Sections 3.7, 5.1 and 5.2 with respect to any period shall be calculated on the basis of the actual number of days in such period divided by 365 or 366 days, as the case maybe.

ARTICLE 6

PAYMENT

6.1    Voluntary Repayment of Outstanding Accommodation.

(a) Repayments. The Borrower shall have the right to voluntarily repay outstanding Accommodations from time to time on any Business Day without premium on the terms and conditions set forth in this Section:

(i) With respect to any voluntary repayment of an Accommodation, unless the Agent with the consent of the Lenders otherwise approves, the Canadian Dollar Amount of Accommodation included in such repayment shall be Two Million Five Hundred Thousand Canadian Dollars (Cdn.$2,500,000) or whole multiples of One Hundred Thousand Canadian Dollars (Cdn.$100,000) or the entire amount of that type of Accommodation outstanding, the U.S. Dollar amount of Accommodation included in such repayment shall be Two Million Five Hundred Thousand U.S. Dollars (U.S.$2,500,000) or whole multiples of One Hundred Thousand U.S. Dollars (U.S.$100,000) or the entire amount of that type of Accommodation outstanding, and the Borrower shall give the Agent a written notice of repayment substantially in the form of Schedule 6.l(a) (a "Notice of Repayment"), specifying the amount, the type or types of Accommodation to be included in the repayment (and where such Accommodation includes any Loan, the currency thereof and the interest rate applicable thereto) and the applicable voluntary repayment date, which notice shall be irrevocable by the Borrower. The Notice of Repayment shall be given to the Agent not later than 10:00 a.m.:

(A) on the second Business Day preceding the applicable repayment date in the case of Loans with a Canadian Dollar Amount in the

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

-41-

aggregate equal to or greater than Two Million Five Hundred Thousand Canadian Dollars (Cdn.$2,500,000);

(B) on the second Business Day preceding the applicable repayment date in the case of Bankers' Acceptances in an aggregate Face Amount equal to or greater than Two Million Five Hundred Thousand Canadian Dollars (Cdn.$2,500,000); and

(C) on the third Business Day preceding the applicable repayment date in the case of LIBOR Loans.

(ii) In all other cases, Notice of Repayment shall be given on the applicable repayment date.

(iii) Any Notice of Repayment received by the Agent on any Business Day after 11 :00 a.m. shall be deemed to have been given to the Agent on the next succeeding Business Day.

(iv) On the applicable voluntary repayment date, the Borrower shall pay to the Agent for the account of the Lenders, the amount of any Accommodation that is subject to the repayment, together with all interest and other fees and amounts accrued, unpaid and due in respect of such repayment; provided, however, that accrued interest will not be repayable prior to the applicable interest payment date in Section 4.1 in respect of Prime Rate Loans or U.S. Base Rate Loans unless the full balance outstanding thereunder is voluntarily repaid.

(b) Repayment of Certain Types of Accommodation. The following provisions shall also apply to the voluntary repayment by the Borrower of the following types of Accommodation:

(i) Subject to Section 6.l(c), no repayment of any LIBOR Loan shall be made otherwise than upon the expiration of any applicable LIBOR Interest Period; and

(ii) No repayment of outstanding Accommodation in the form of Bankers' Acceptance shall be made otherwise than upon the expiration or maturity date or, in the case of a Documentary Credit, on the date of surrender thereof to the Documentary Credit Lender.

(c) Repayment of LIBOR Loans. Notwithstanding Sections 6.l(a) and 6.l(b), a LIBOR Loan may be repaid at any time within the thirty (30) day period after the Borrower receives notice that it is required to pay any amount under Section 7.6 in respect of such Accommodation, provided that in addition to the other amounts required to be paid pursuant to this Section at the time of such repayment, the Borrower pays to the Agent for the account of the Lenders at such time all reasonable breakage costs incurred by the Lenders with respect to, and all other amounts payable by the Borrower under Sections 7.6 and 7.7 in connection with,

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

-42-

such repayment. A certificate of a Lender or Lenders as to such costs, providing details of the calculation of such costs, shall be prima facia evidence.

6.2    Repayment on Maturity Date and Extension.

(a) Subject to the provisions of this Agreement and to this Section, the Borrower shall repay in full all outstanding Accommodations to each Lender on the Maturity Date of such Lender, together with all interest, fees and other amounts payable hereunder on the Maturity Date of such Lender, in each case, to the Agent for the account of the applicable Lender(s), and the Commitment of such Lender shall be permanently cancelled and the aggregate Committed Amount shall be permanently cancelled by a corresponding amount.

(b) By notice in writing to the Agent in the form of Schedule 3 (a "Notice of Extension") given not more than 90 and not less than 45 days prior to each anniversary date of the date of this Agreement, the Borrower may request each Lender to extend the Maturity Date of such Lender for an additional period of 365 days. The Lenders agree that they shall give or withhold their consent in a timely manner so that the Agent may provide a response to the Borrower to the Notice of Extension within thirty (30) days from the date of such receipt, provided that the decision of any Lender to extend the Maturity Date in respect of such Lender shall be at the sole discretion of such Lender. The Borrower shall be entitled to replace any Lender which dissents in response to the Notice of Extension (a "Dissenting Lender") with another existing Lender or Lenders without the consent of any of the remaining Lenders; or to replace a Dissenting Lender with any financial institution which is not an existing Lender with the consent of the Agent and the Documentary Credit Lender, such consent not to be unreasonably withheld. The Borrower shall be entitled, with the unanimous consent of the Lenders who have agreed to extend, to permanently cancel the Commitment of any Dissenting Lender and repay such Dissenting Lender, at which time the Committed Amount shall be permanently reduced by the amount of such Commitment.

6.3    Excess Accommodation.

In addition to the other repayment rights, obligations or options set forth in this Article, if the aggregate Canadian Dollar Amount of all Accommodations outstanding under the Credit Facility at any time exceeds the Committed Amount, the Borrower shall immediately upon request of the Agent:

(a) to the extent any of the Accommodations are Prime Rate Loans, U.S. Base Rate Loans, repay such excess; and

(b) in the case of Banker's Acceptances or LIBOR Loans, pay to the Agent for the account of the Lenders an amount in Canadian Dollars or U.S. Dollars, as applicable, equivalent to the amount by which the Committed Amount is exceeded.

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

-43-

Funds paid under clause (b) shall be invested from time to time in such form of investment at the Branch designated by the Borrower and approved by the Agent, for terms corresponding to the applicable term of the Banker's Acceptance or the LIBOR Interest Period, as the case may be, and shall bear interest at the rate payable by the Agent on deposits of similar currency, amount and maturity.

6.4    Illegality.

Notwithstanding any other provision of this Agreement, if the making or continuation of any Accommodation shall have been made unlawful or prohibited due to compliance by any of the Agent and the Lenders in good faith with any change made after the date hereof in any law or governmental rule, regulation, guideline or order, or in any interpretation or application of any law or governmental rule, regulation, guideline or order by any competent authority, or with any request or directive (whether or not having the force of law) by any central bank, reserve board, superintendent of financial institutions or other comparable authority made after the date hereof, then the Agent will give notice thereof to the Borrower which shall repay such Accommodation within a reasonable period or such shorter period as may be required by law. During the continuation of any such event the Lenders will have no obligation under this Agreement to make or continue any Accommodation affected thereby.

ARTICLE 7

PAYMENTS AND INDEMNITIES

7.1    Payments on Non-Business Days.

Unless otherwise provided herein, whenever any payment to be made under this Agreement shall be stated to be due on a day which is not a Business Day, the due date thereof shall be extended to the next succeeding Business Day, and interest or fees shall be payable at the appropriate rate during such extension.

7.2    Method and Place of Payment.

Unless otherwise provided herein, all payments made by the Borrower to the Agent under this Agreement will be made not later than 2:00 p.m. on the date when due, and all such payments will be made in immediately available funds. Any amounts received after that time shall be deemed to have been received by the Agent on the next Business Day.

7.3    Net Payments.

All payments by the Borrower under this Agreement shall be made without set-off or counterclaim or other deduction and without regard to any equities between the Borrower and the Agent or any of the Lenders or any other Person and free and clear of, and without reduction for or on account of, any present or future levies, imposts, duties, charges, fees, deductions or other withholdings, and if the Borrower is required by law to withhold any amount, then the Borrower will increase the amount of such payment to an amount which will ensure that the Agent receives the full amount of the original payment.

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

-44-

7.4    Agent May Debit Account.

The Agent may debit accounts of the Borrower with the Agent (if any) for any payment or amount due and payable by the Borrower pursuant to this Agreement without further direction from the Borrower to the Agent.

7.5    Currency of Payment.

Accommodation shall be repaid by the Borrower to the Agent or a Lender as required under this Agreement in the currency in which such Accommodation was obtained. Any payment on account of an amount payable under this Agreement in a particular currency (the "Proper Currency") required by any authority having jurisdiction to be made (or which a Lender elects to accept) in a currency (the "Other Currency") other than the Proper Currency, whether pursuant to a judgment or order of any court or tribunal or otherwise, shall constitute a discharge of the Borrower's obligations under this Agreement only to the extent of the amount of the Proper Currency which each applicable Lender is able, as soon as practicable after receipt by it of such payment, to purchase with the amount of the Other Currency so received. If the amount of the Proper Currency which a Lender is so able to purchase is less than the amount of the Proper Currency originally due to it, the Borrower shall indemnify and hold such Lender harmless from and against all losses, costs, damages or expenses which such Lender may sustain, pay or incur as a result of such deficiency. This indemnity shall constitute an obligation separate and independent from any other obligation contained in this Agreement, shall give rise to a separate and independent cause of action, shall apply irrespective of any indulgence granted by the Lenders from time to time, shall continue in full force and effect notwithstanding any judgment or order for a liquidated sum in respect of an amount due under this Agreement or under any judgment or order and shall not merge in any order of foreclosure made in respect of any of the security given by the Borrower to or for the benefit of any Lender.

7.6    General Indemnity.

The Borrower shall indemnify the Agent and the Lenders and their directors, officers, employees, attorneys and agents against and hold each of them harmless from any loss, liabilities, damages, claims, costs and expenses (including fees and expenses of counsel to the Agent and the Lenders on a solicitor and his own client basis and reasonable fees and expenses of all independent consultants) (each a "Claim") suffered or incurred by any of them arising out of, resulting from or in any manner connected with or related to:

(a) any Environmental Matter, Environmental Liability or Environmental Proceeding; and

(b) any loss or expense incurred in liquidating or re-employing deposits from which such funds were obtained, which the Agent or Lender may sustain or incur as a consequence of:

(i) failure by the Borrower to make payment when due of the principal amount of or interest on any LIBOR Loan;

(ii) failure by the Borrower in proceeding with a Borrowing after the Borrower has given a Borrowing Notice;

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

-45-

(iii) failure by the Borrower in repaying a Borrowing after the Borrower has given a notice of repayment;

(iv) any breach, non-observance or non-performance by the Borrower of any of its obligations, covenants, agreements, representations or warranties contained in this Agreement; and

(v) except as otherwise provided in Section 6.l(c)the repayment of any LIBOR Loan otherwise than on the expiration of any applicable LIBOR Interest Period or the repayment of any Bankers' Acceptance otherwise than on the maturity date thereof.

The indemnity set forth herein shall be in addition to any other obligations or liabilities of the Borrower to any of the Agent and the Lenders at common law or otherwise and this Section shall survive the repayment of the Accommodation and the termination of this Agreement. A certificate of the Lender as to any such loss or expense, providing details of the calculation of such loss or expense, shall be prima facie evidence.

7.7    Early Termination of LIBOR Interest Period.

Without limiting Section 7 .6, if the Agent is required to arrange for early termination of any LIBOR Interest Period or to arrange to acquire funds for any period other than a LIBOR Interest Period to permit the Borrower to repay any LIBOR Loan, the Borrower shall reimburse the Lenders for all losses and reasonable out-of-pocket expenses incurred by them as a result of the early termination of the LIBOR Interest Period in question or as a result of entering into the new arrangement to the extent that such losses and expenses result from such payment. If any such early termination or new arrangement cannot be effected by the Agent on behalf of the Lenders, the Borrower shall continue to pay interest to the Agent in U.S. Dollars at the LIBOR Rate specified hereunder upon an amount of U.S. Dollars equal to the amount of the principal repayment for the remainder of the then current LIBOR Interest Period. The indemnity set forth herein shall be in addition to any other obligations or liabilities of the Borrower to any of the Agent and the Lenders at common law or otherwise and this Section shall survive the repayment of the Accommodation and the termination of this Agreement. A certificate of a Lender or Lenders as to any such loss or expense, providing details of the calculation of such loss or expense, shall be prima facie evidence.

7.8    Outstanding Bankers' Acceptances.

If the Credit Facility is terminated at any time prior to the maturity date of any Bankers' Acceptance issued hereunder, the Borrower shall pay to the Lenders, on demand, an amount with respect to each such Bankers' Acceptance equal to the total amounts which would be required to purchase in the Canadian Dollars market, as of 10:00 a.m. on the date of payment of such demand, Government of Canada treasury bills in an aggregate amount equal to the Face Amount of such Bankers' Acceptance having a term to maturity similar to the period from such demand to maturity of such Bankers' Acceptance. Upon payment by the Borrower as required under this paragraph, the Borrower shall have no further liability in respect of each such Bankers' Acceptance and the Lenders shall be entitled to all of the benefits of, and be responsible for all payments to third parties under, such Bankers' Acceptance and the Lenders shall indemnify and

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

-46-

hold harmless the Borrower in respect of all amounts which the Borrower may be required to pay under each such Bankers' Acceptance to any party other than the Lenders.

ARTICLE 8

SECURITY

8.1    Security.

As general and continuing security for the due payment and performance of all present and future indebtedness, liabilities and obligations of the Borrower to the Agent and to the Lenders under the Existing Credit Agreement, the Borrower provided to the Agent on behalf of the Lenders a pledge of the Senior Pledged Bond, Series 2, such pledge being pursuant to the Bond Delivery Agreement. The parties hereby confirm that all present and future indebtedness, liabilities and obligations of the Borrower to the Agent and the Lenders under this Agreement shall constitute "Obligations" for the purposes of the Third Supplemental Indenture and shall be subject to the Senior Pledged Bond, Series 2 .

ARTICLE 9

REPRESENTATIONS AND WARRANTIES

9.1    Representations and Warranties.

To induce the Lenders to make Accommodations available to the Borrower, each of the Borrower and the General Partner, in its personal capacity, represents and warrants to the Agent and the Lenders that the following are true and correct in all material respects:

(a) Existence - the Borrower and each of its Subsidiaries is a partnership, corporation or other entity, as the case may be, incorporated or organized and subsisting under the laws of its jurisdiction of incorporation or organization, specified on Schedule 9.l(a) (as such Schedule may be amended from time to time by Borrower and provided to the Lenders, provided that such amendments shall not otherwise be contrary to this Agreement) with and has all requisite partnership, corporate or other power and authority to own, hold under license or lease its property, undertaking and Assets and to carry on (i) its Business as now conducted (and as now proposed to be conducted); and (ii) the transactions contemplated by this Agreement and each other Loan Document to which it is a party. The General Partner is a corporation, duly and validly incorporated, organized and existing as a corporation under the laws of the Province of Alberta and has the legal capacity to act as the General Partner of the Borrower;

(b) Capacity - each of the Borrower and the General Partner has the legal capacity and right to enter into the Loan Documents and do all acts and things and execute and deliver all agreements, documents and instruments as are required thereunder to be done, observed or performed by it in accordance with the terms and conditions thereof;

(c) Authority - the execution and delivery by the Borrower and General Partner of this Agreement and each of the Loan Documents to which it is a party, and the performance by it of its obligations thereunder have been duly authorized by all

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

-47-

necessary corporate, partnership or other action including, without limitation, the obtaining of all necessary shareholder, partnership or other relevant consents. No authorization, consent, approval, registration, qualification, designation, declaration or filing with any Governmental Authority or other Person, is or was necessary in connection with the execution, delivery and performance of the Borrower's or General Partner's obligations under this Agreement and the other Loan Documents to which it is a party, except such as are in full force and effect, unamended at the date hereof;

(d) Execution and Delivery, Enforceability - each of the Loan Documents has been duly executed and delivered by each of the Borrower and the General Partner and constitutes a valid and legally binding obligation of the Borrower enforceable against it in accordance with its terms, subject only to bankruptcy, insolvency, reorganization, arrangement or other statutes or judicial decisions affecting the enforcement of creditors' rights in general and to general principles of equity under which specific performance and injunctive relief may be refused by a court in its discretion;

(e) No Litigation - there is no existing, pending or, to the knowledge of the Borrower or the General Partner, threatened litigation by or against the Borrower, its Subsidiaries or the General Partner which could reasonably be expected to be adversely determined to the rights of the Borrower, its Subsidiaries or the General Partner and which could reasonably be expected to cause a Material Adverse Effect; no event has occurred and, to the knowledge of the Borrower or the General Partner, no state or condition exists, which could give rise to any such litigation;

(f) No Conflict - the execution and delivery by the Borrower and the General Partner and the performance by them of their obligations under, and compliance with the terms, conditions and provisions of, this Agreement and each other Loan Document will not conflict with or result in a breach of any of the terms, conditions or provisions of (i) its articles, by-laws, partnership agreement or other organizational documents, as the case may be; (ii) any Applicable Law; (iii) any Material Agreement or any material contractual restriction binding on or affecting it or its Assets; or (iv) any material judgment, injunction, determination or award which is binding on it in each such case except to the extent that such breach could not reasonably be expected to result in a Material Adverse Change;

(g) Financial Statements - the financial statements and forecasts of the Borrower and its Subsidiaries which have been provided to the Agent are accurate and complete in all material respects, and fairly present the consolidated financial condition and business operations of the Borrower and its Subsidiaries, as at the date thereof and are prepared in a form and manner consistent with existing financial reporting practices of the Borrower in accordance with GAAP;

(h) Books and Records - all books and records of the Borrower and its Subsidiaries have been fully and accurately kept and completed and there are no material inaccuracies or discrepancies of any kind contained or reflected therein. The

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

-48-

Borrower's and its Subsidiaries' records, systems, controls, data or information are not recorded, stored, maintained, operated or otherwise wholly or partly dependent upon or held by any means (including any electric, mechanical or photographic process, whether computerized or not) which (including all means of access thereto and therefrom) are not under the direct control of Borrower or its Subsidiaries, as applicable;

(i) No Material Adverse Change - there has been no Material Adverse Change since December 31, 2009;

(j) Compliance with Laws and Agreements - the Borrower, its Subsidiaries and the General Partner are in compliance with all Applicable Laws and all agreements or contracts where any non-compliance could reasonably be expected to cause a Material Adverse Effect;

(k) Approvals - all Governmental Approvals and other consents or authorizations necessary to permit the Borrower and its Subsidiaries and the General Partner (i) to execute, deliver and perform each Loan Document to which it is a party (if any), and to consummate the transactions contemplated thereby; and (ii) to own and operate the Business, have been obtained or effected and are in full force and effect. The Borrower and its Subsidiaries are in compliance with the requirements of all such Governmental Approvals and consents and there is no Claim existing, pending or, to the knowledge of the Borrower or the General Partner, threatened which could result in the revocation, cancellation, suspension or any adverse modification of any of such Governmental Approvals or consent;

(1) No Default - no Default or Event of Default under this Agreement or the Master Trust Indenture has occurred or is continuing which has not (i) been expressly waived in writing by the Agent, the Trustee under the Master Trust Indenture and the holders of the Senior Bonds, Series 05-1 and holders of the Senior Bonds, Series 09-1; or (ii) been remedied (or otherwise ceased to be continuing);

(m) Ownership of Assets, Principal Property - the Borrower and its Subsidiaries each has good and marketable title to (and in the case of the Borrower) free and clear of all Liens, other than Permitted Liens, all of its respective Assets used in the Business. The Principal Property in the name of the General Partner is and will be held by the General Partner in trust for the Borrower;

(n) Taxes -

(i) the Borrower and its Subsidiaries are currently exempt from (i) income tax under the Income Tax Act (Canada), and (ii) realty taxes under the Assessment Act (Alberta); the Borrower is not in default of any of the filings, payments or other requirements necessary to maintain such exempt status, nor does the Borrower have any knowledge of any event which could result in the Borrower or AltaLink ceasing to be exempt from taxation under such statutes; and

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

-49-

(ii) the Borrower and its Subsidiaries have filed or caused to be filed all tax returns which, to its knowledge, are required to have been filed, and have paid all taxes shown to be due and payable on said returns or on any assessments made against it or any of its property and all other taxes, fees or other charges imposed on it or any of its property by any Governmental Authority (other than those the amount or validity of which is currently being contested in good faith by appropriate proceedings and with respect to which reserves in conformity with GAAP have been provided in its books); and no tax liens have been filed and, to the knowledge of the Borrower no claims are being asserted with respect to any such taxes, fees or other charges;

(o) No Proceedings - no essential portion of the Borrower's or any of its Subsidiaries' real or leased property has been taken or expropriated by any Governmental Authority nor has written notice or proceedings in respect thereof been given or commenced nor is the Borrower aware of any intent or proposal to give any such notice or commence any such proceedings;

(p) Environmental - except as disclosed to the Agent, neither the Borrower nor any of its Subsidiaries has:

(i) any knowledge of any Environmental Adverse Effect or any condition existing at, on or under the Principal Property which, in any case or in the aggregate, with the passage of time or the giving of notice or both, could reasonably be expected to give rise to liability of the Borrower or any of its Subsidiaries resulting in a Material Adverse Effect;

(ii) any knowledge of any present or prior leaks or spills with respect to underground storage tanks and piping system or any other underground structures existing at, on or under Principal Property or of any past violations by any Applicable Laws, policies or codes of practice involving the Principal Property, which violations, in any case or in the aggregate, could reasonably be expected to have a Material Adverse Effect;

(iii) any knowledge that it has any obligation under any Environmental Laws to pay any compensation or damages resulting from the operation of the Principal Property, or that it will have any such obligation resulting from the maintenance and operation of the Principal Property, which, in any case or in the aggregate, could reasonably be expected to have a Material Adverse Effect; and

(iv) any Environmental Liability which, in any case or in the aggregate, could reasonably be expected to have a Material Adverse Effect except as disclosed by the Borrower to the Agent in writing prior to the Effective Date;

(q) No Proceedings or Investigations - none of the Borrower or its Subsidiaries is, as at the date that this representation is made or deemed to be made, the subject of

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

-50-

any civil, criminal or regulatory proceeding or governmental or regulatory investigation with respect to Environmental Laws nor are any of them aware of any threatened proceedings or investigations which, in any case or in the aggregate, could reasonably be expected to have a Material Adverse Effect except as disclosed in accordance with the notice requirements set out in Section 10.5. The Borrower and its Subsidiaries are actively and diligently proceeding to use all reasonable efforts to comply with all Environmental Laws and all such activities are being carried on in a prudent and responsible manner and with all due care and due diligence;

(r) Insurance - the Borrower and its Subsidiaries maintain insurance or self insure (including business interruption insurance, property insurance and general liability insurance) with responsible insurance carriers and in such amounts and covering such risks as are usually carried by companies engaged in similar businesses and owning similar properties;

(s) Pension Plans - Neither the Borrower nor any of its Subsidiaries (except AltaLink Management Ltd.) has established or is party to or obligated under any pension plans. All pension plans established by AltaLink Management Ltd. are being operated, administered and maintained in compliance with all laws, regulations and orders applicable thereto, except for such instances of non• compliance as have not resulted in and could not reasonably be expected to result in a Material Adverse Effect. All premiums, contributions and any other amounts required by applicable pension plan documents or applicable Laws to be paid or accrued by AltaLink Management Ltd., to the extent failure to do so could reasonably be expected to result in a Material Adverse Effect, are being paid or accrued as required;

(t) Subsidiaries - (i) the Borrower is the sole limited partner and is the owner of 99.99% of the Equity Securities in AltaLink and AltaLink Management Ltd. is the sole general partner and is the owner of .01 % of the Equity Securities of AltaLink, (ii) no Person has any right or option to purchase or otherwise acquire any of the Equity Securities of AltaLink; and (iii) the Borrower does not own or hold any Equity Securities in, directly or indirectly, any other Person, other than as disclosed in Schedule 9.l(a), as amended from time to time and provided to the Lenders (provided such amendments shall not otherwise be contrary to this Agreement).

(u) Complete Disclosure - all written information and data concerning the Borrower, the General Partner and the Borrower's Subsidiaries that have been prepared by it or any of its representatives or advisors and that have been made available to the Agent or the Lenders are and, at the time such information and data were made available, were true and correct in all material respects and do not, and, at the time such information and data were made available, did not, contain any untrue statement of a material fact, or omit to state a material fact necessary in order to make the statements contained in such information and data not misleading in light of the circumstances under which such statements were made.

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

-51-

9.2    Survival of Representations and Warranties.

All representations and warranties contained in this Agreement, the Loan Documents and any certificate or document delivered pursuant hereto shall survive the execution and delivery of this Agreement and the Loan Documents, the advance of each Accommodation and exercise of any remedies under this Agreement or under any of the Loan Documents, notwithstanding any investigation made at any time by or on behalf of the Agent or the Lenders.

ARTICLE 10

COVENANTS

The Borrower covenants and agrees that, so long as any Accommodation is outstanding or the

Borrower is entitled to obtain any Accommodation under the Credit Facility:

10.1    Reporting Covenants.

(a) Information and Certificates. The Borrower shall furnish to the Agent (in "pdf" format where practicable, or in such other form as may be agreed between the Borrower and the Agent):

(i) not later than one hundred and forty (140) days (or such earlier date as may be prescribed from time to time under applicable securities legislation for the delivery of annual financial statements to security holders) after the end of each Fiscal Year, the annual financial statements (consolidated and unconsolidated) of the Borrower consisting of a balance sheet and statements of income, retained earnings and changes in financial position for the year then ended and for the immediately preceding Fiscal Year together with the report on such consolidated statements of the Borrower's auditors and the discussion and analysis of such consolidated statements prepared by the management of the Borrower;

(ii) not later than sixty (60) days (or such earlier date as may be prescribed from time to time under applicable securities legislation for the delivery of interim financial statements to security holders) after the end of each fiscal quarter the unaudited interim financial statements (consolidated and unconsolidated) of the Borrower, including a balance sheet and statements of income and changes in financial position for the period then ended and for the year to date and for the comparative periods in the prior Fiscal Year of the Borrower;

(iii) at the request of the Agent, at the time the same are sent, copies of all other financial statements and such other information or material, including, without limitation, copies of all financial statements, reports, notices, and other documents, if any, which the Borrower may make to, or file with, any Governmental Authority or (and to the extent not already provided under the Master Trust Indenture) of any officer certificates, notices and other information delivered to the Trustee under the Master Trust Indenture including, without limitation, notice of any "Event of

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

-52-

Default" under the Master Trust Indenture, at the time such documents are required to be delivered to the Trustee in accordance with the provisions of the Master Trust Indenture;

(iv) on or before thirty (30) days prior to the beginning of the next Fiscal Year of the Borrower, an annual consolidated and unconsolidated financial forecast of the Borrower;

(v) a certified copy of any supplemental indenture which amends in any way the Master Trust Indenture; and

(vi) upon delivery of each of the items set out in Sections 10.l(a)(i) and (ii) of this Agreement, the Borrower's Certificate of Compliance.

10.2    Payments Under This Agreement and Loan Documents.

The Borrower shall pay, discharge or otherwise satisfy all amounts payable under this Agreement in accordance with the terms of this Agreement and all amounts payable under any Loan Document in accordance with the terms thereof.

10.3    Proceeds.

The Borrower shall use the proceeds of any Accommodation only for the purposes permitted pursuant to Section 2.3

10.4    Inspection of Property, Books and Records, Discussions.

The Borrower and each of its Subsidiaries shall keep proper books of record and account in which full, true and correct entries in conformity with GAAP and all Applicable Laws and on a basis consistent with its financial statements shall be made of all dealings and transactions in relation to its business and activities, and permit representatives and agents of the Agent upon reasonable notice to the Borrower and during business hours, to visit and inspect any of the properties and examine and make abstracts from any of the books and records of the Borrower as often as may reasonably be desired, and, subject to applicable securities laws, to discuss the business, operations, property, condition and prospects (financial or otherwise) of the Borrower with those officers and employees of the Borrower designated by its senior executive officers.

10.5    Notices. The Borrower shall promptly give notice to the Agent of:

(a) the occurrence of any Default or Event of Default;

(b) the commencement of, or receipt by the Borrower of a written threat of, any action, suit or proceeding against or affecting the Borrower or any of its Subsidiaries before any court or arbitrator or before or by any Governmental Authority, in Canada or elsewhere, or before any board, which claims in excess of Twelve Million and Five Hundred Thousand Canadian Dollars (Cdn.$12,500,000) or which, in any case or in the aggregate, has, or has any reasonable likelihood of having, a Material Adverse Effect, and such further information in respect thereof as the Agent may request from time to time;

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

-53-

(c) any notice of any violation or administrative or judicial complaint or order having been filed or, to the Borrower's knowledge, about to be filed against the Borrower which has, or has any reasonable likelihood of having, a Material Adverse Effect;

(d) any notice from any Governmental Authority or any other Person alleging that the Borrower is or may be subject to any Environmental Liability which has, or has any reasonable likelihood of having, a Material Adverse Effect;

(e) any notice of any material violation of Applicable Utilities Legislation;

(f) the occurrence or non-occurrence of any other event which has, or has a reasonable likelihood of having, a Material Adverse Effect; and

(g) any change in the ratings assigned by each of the Rating Agencies to the Senior Bonds, Series 05-1 or the Senior Bonds, Series 09-1.

10.6    Disbursements under Master Trust Indenture.

The Borrower shall disburse and apply all Net Revenues (as such term is defined in the Master Trust Indenture) in accordance with Section 4.1 of the Master Trust Indenture.

10.7    Cure Defects.

The Borrower shall promptly cure or cause to be cured any defects in the execution and delivery of any of the Loan Documents or any of the other agreements, instruments or documents contemplated thereby or executed pursuant thereto or any defects in the validity or enforceability of any of the Loan Documents and execute and deliver or cause to be executed and delivered all such agreements, instruments and other documents as the Agent may consider necessary or desirable for the foregoing purposes.

10.8    Carrying on Business.

The Borrower and each of its Subsidiaries shall own, maintain and repair or reconstruct the Principal Property and all other Assets, including licences, permits and intellectual property, necessary to operate the Business and directly receive all revenues associated therewith and shall at all times carry on and conduct the Business in a proper, efficient and businesslike manner and in accordance with good business practices so as to comply with all applicable regulatory requirements and preserve and protect the revenues thereof.

10.9    Insurance and Insurance Proceeds.

(a) The Borrower and each of its Subsidiaries shall maintain insurance with respect to its properties and business and against such casualties and contingencies and in such types and such amounts as shall be in accordance with sound business practices which are standard in the industry and in accordance with any express requirements of Governmental Authorities, where applicable, including the right to self-insure and/or co-insure with respect to any of the insurance required to be maintained by the Borrower pursuant to this paragraph.

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

-54-

(b) Immediately upon receipt by the Borrower of any Insurance Proceeds, Borrower shall apply such Insurance Proceeds in accordance with Section 4.1 of the Master Trust Indenture. Notwithstanding the foregoing, to the extent that any Insurance Proceeds are used by the Borrower, within 12 months after receipt of same, to replace or repair the Assets in respect of which the Insurance Proceeds were received, then such Insurance Proceeds need not be so applied. Borrower shall provide Agent with a copy of any officer's certificate provided pursuant to Section 6.10 of the Master Trust Indenture.

10.10    Compliance with Laws and Agreements.

The Borrower and each of its Subsidiaries shall at all times comply in all material respects with all requirements of the Applicable Utilities Legislation and all other Applicable Laws. The Borrower shall at all times comply in all material respects with all Material Agreements, including, without limitation, the Master Trust Indenture.

10.11    Taxes.

The Borrower and each of its Subsidiaries shall, from time to time, pay or cause to be paid all Taxes lawfully levied, assessed or imposed upon or in respect of its property or any part thereof or upon its income and profits as and when the same become due and payable and withhold and remit any amounts required to be withheld by it from payments due to others and remit the same to any government or agency thereof, and it will exhibit or cause to be exhibited to the Agent, when requested, the receipts and vouchers establishing such payment and will in all material respects duly observe and conform to all applicable requirements of any Governmental Authority relative to any of the property or rights of the Borrower and all covenants, terms and conditions upon or under which any such property or rights are held; provided, however, that the Borrower shall have the right to contest, in good faith and diligently by legal proceedings, any such Taxes and, during such contest, may delay or defer payment or discharge thereof.

10.12    Further Assurances.

At the Borrower's cost and expense, upon request of the Agent, duly execute and deliver or cause to be duly executed and delivered to the Agent such further instruments and do and cause to be done such further acts as may be necessary or proper in the reasonable opinion of the Agent to carry out more effectually the provisions and purposes of the Loan Documents.

10.13    Limitation on Indebtedness.

The Borrower will not, and will not permit any Non-AltaLink Subsidiary to, directly or indirectly, create, incur assume, suffer to exist any Indebtedness other than (i) Indebtedness under the Senior Bonds, Series 05-1, such Indebtedness not to exceed $200,000,000, excluding accrued but unpaid interest, in the aggregate at any time, (ii) Indebtedness under the Senior Bonds, Series 09-1, such Indebtedness not to exceed $150,000,000 excluding accrued but unpaid interest, in the aggregate at any time, (iii) the Indebtedness owing to the Lenders and/or Agent under this Agreement, (iv) other Indebtedness, including Capital Lease Obligations and Purchase Money Obligations, not to exceed, in the aggregate at any time, $10,000,000 or the

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

-55-

Equivalent Amount thereof, and (v) Indebtedness of the Borrower under any interest rate, currency rate or commodity hedging agreement permitted under this Agreement.

10.14    Negative Pledge.

The Borrower will not, and will not permit any Non-Altalink Subsidiary to, create, incur, assume or suffer to exist any Lien on any of its Assets, whether now owned or hereafter acquired, other than Permitted Liens.

10.15    Investments.

The Borrower shall not, directly or indirectly, make any Investments, other than (i) Investments in AltaLink and its present and future Subsidiaries, (ii) Investments in a wholly-owned Subsidiary of the Borrower or in a Non-Altalink Subsidiary in conjunction with an Acquisition made by the Borrower and permitted by Section 10.18 of this Agreement or other Investments in such Subsidiaries (and provided for greater certainty that the aggregate amount of all such Investments in any Fiscal Year together with the amount of Acquisitions under Section 10.18 in any Fiscal Year shall not exceed the aggregate amount permitted by Section 10.18), and (iii) other Investments related to the Business to a maximum aggregate amount of $5,000,000. For purposes of this Section 10.15 and Section 10.16 (and paragraph 5 of the Certificate of Compliance), a Subsidiary of the Borrower (other than AltaLink) shall be deemed to be a wholly owned Subsidiary of the Borrower so long as (a) the Borrower is the sole limited partner and is the owner of 99.99% of the Equity Securities of such Subsidiary and the sole general partner of such Subsidiary is the owner of .01 % of the Equity Securities of Subsidiary, (b) no Person has any right or option to purchase or otherwise acquire any of the Equity Securities of such Subsidiary, and (c) SNC Lavalin Group Inc. continues to own (directly or indirectly) 100% of the Equity Securities of the general partner of such Subsidiary.

10.16    Change in Business and Ownership of AltaLink and Subsidiaries.

The Borrower and its Subsidiaries shall not engage in any business other than the Business. The Borrower shall ensure that (a) AltaLink is at all times a direct, wholly-owned Subsidiary of the Borrower, and (b) at no time shall the total revenues and total Assets, respectively, of all non wholly-owned Subsidiaries of the Borrower exceed 10% of the Borrower's consolidated revenues or Consolidated Assets, as disclosed in the most recent audited financial statements delivered to Agent and Lenders pursuant to Section 10.1, as the case may be.

10.17    Mergers, Etc.

Neither the Borrower nor any Subsidiary of the Borrower shall enter into, any transaction (whether by way of reconstruction, reorganization, consolidation, amalgamation, winding-up, merger, transfer, sale, lease or otherwise) whereby all or any substantial part of its undertaking or Assets would become the property of any other Person.

10.18    Acquisitions.

Neither the Borrower nor any Subsidiary of the Borrower shall make, directly or indirectly, any Acquisition other than Acquisitions which (i) pertain to the Business, and (ii) where the value of the Assets acquired do not, in any Fiscal Year, exceed the lesser of (y) 25% of the Consolidated

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

-56-

Assets, and (z) 25% of consolidated revenues of the Borrower (determined in accordance with GAAP), in each case, as disclosed in the most recent audited financial statements delivered to Agent and Lenders pursuant to Section 10.1, and provided that no Default or Event of Default has occurred or is continuing or would occur as a result of such Acquisition.

10.19    Transactions with Non-Arm's Length Persons.

Neither the Borrower nor any Subsidiary of the Borrower shall, directly or indirectly, (a) purchase, acquire, lease or license any material property, assets, right or service from, or (b) sell, transfer, lease or license any property, assets, right or services to, any Person (including any Partner and their respective Affiliates) not dealing at arm's length with the Borrower, or any Affiliate of any such Person, except at prices and on terms not less favourable to the Borrower than those which could have been obtained in an arm's length transaction with an arm's length Person.

10.20    Environmental Covenants.

(a) The Borrower and its Subsidiaries shall, at all times conduct and maintain the Business in compliance in all material respects with all Environmental Laws and Environmental Approvals.

(b) If the Borrower or any of its Subsidiaries shall:

(i) receive notice from any Governmental Authority that any material violation of any Environmental Law or Environmental Approval has been, may have been, or is about to be committed by the Borrower or its Subsidiaries;

(ii) receive notice that any Remedial Order or other proceeding has been filed or is about to be filed against the Borrower or any of its Subsidiaries alleging material violations of any Environmental Law or requiring the Borrower or any of its Subsidiaries to take any material action in connection with the Release or threatened Release of a Hazardous Substance into the environment or requiring the cessation of a nuisance; or

(iii) receive any notice from a Governmental Authority alleging that the Borrower or any of its Subsidiaries may be liable or responsible for material costs associated with a nuisance or a response to, or clean up of, a Release or threatened Release of a Hazardous Substance into the environment or any damages caused thereby;

then the Borrower shall in each such case provide the Agent with a copy of such notice within ten (10) days of the Borrower's or Subsidiary's receipt thereof, and thereafter shall keep the Agent informed in a timely manner of any developments in such matters, and shall provide to the Agent such other information in respect thereto as may be reasonably requested by the Agent from time to time.

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

-57-

10.21    Hedging Agreements.

Neither the Borrower nor any Subsidiary of the Borrower (excluding AltaLink) shall enter into any Financial Instrument Obligation (or similar understanding or obligation) except in accordance with Section 6.3 of the Master Trust Indenture.

10.22    Distributions.

The Borrower shall not make or commit to make any Distributions if a Default or Event of Default has occurred and is continuing or could reasonably be expected to result therefrom. Borrower shall provide Agent with satisfactory evidence of pro forma compliance with the financial covenants set out in Section 10.24 of this Agreement, after giving effect to such proposed Distribution and compliance with Section 4.1 of the Master Trust Indenture.

10.23    Fiscal Year.

Neither the Borrower nor any Subsidiary of the Borrower shall change its Fiscal Year.

10.24    Financial Covenants.

The Borrower shall comply with the following financial covenants:

(a) Interest Coverage Ratio. The Borrower shall maintain, measured each Fiscal Quarter in each Fiscal Year, commencing with the Fiscal Quarter ending December 31, 2010, a ratio of EBITDA for the four Fiscal Quarters then ended to Interest Expense for the four Fiscal Quarters then ended, of not less than 2.25: 1; and

(b) Consolidated Total Debt to Consolidated Total Capitalization. The Borrower and its Subsidiaries shall maintain, during each Fiscal Quarter in each Fiscal Year, commencing with the Fiscal Quarter ending December 31, 2010, a maximum ratio of Consolidated Total Debt to Consolidated Total Capitalization of 80%.

10.25    Master Trust Indenture.

The Borrower covenants and agrees that so long as any Accommodation is outstanding or the Borrower is entitled to obtain any Accommodation under the Credit Facility, the Borrower will comply with all of the covenants, positive and negative, contained in the Master Trust Indenture. Notwithstanding the foregoing, in the event of any conflict or inconsistency between any of the provisions in this Agreement and any of the provisions in the Master Trust Indenture, as against the parties hereto and their respective successors and permitted assigns the provisions in this Agreement shall prevail.

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

-58-

ARTICLE 11

CONDITIONS PRECEDENT TO BORROWINGS

11.1    Conditions Precedent to the Closing.

The effectiveness of this Agreement is subject to the condition precedent that the Agent and each Lender shall be satisfied with, or the Borrower shall have delivered to the Agent, as the case may be, on or before the Effective Date, the following in form, substance and dated as of a date satisfactory to the Lenders and their counsel and in sufficient quantities for each Lender:

(a) this Agreement shall have been duly executed and delivered by the Borrower and the General Partner;

(b) completion of and satisfactory results with respect to, such financial, business and legal due diligence as reasonably requested by the Lenders;

(c) the Agent or the Lenders shall have received any other Loan Documents required by the Agent or the Lenders duly executed by the Borrower and the General Partner, as the case may be;

(d) the following documents in form, substance and execution acceptable to the Agent shall have been delivered to the Agent:

(i) duly certified copies of the constating documents of the Borrower and the General Partner, all necessary resolutions of the board of directors or similar necessary proceedings taken and required to be taken by the Borrower to authorize the execution and delivery of this Agreement and the Loan Documents (excluding Loan Documents executed and delivered prior to the date hereof pursuant to the Existing Credit Agreement) to which it is a party and the entering into and performance of the transactions contemplated herein and therein;

(ii) certificates of incumbency of the General Partner setting forth specimen signatures of the persons authorized to execute this Agreement, on behalf of the Borrower and the Loan Documents to which it is a party;

(iii) certificate of status or the equivalent relative to the Borrower and the General Partner under its jurisdiction of creation; and

(iv) the opinion of counsel for the Borrower in form and substance satisfactory to the Lenders;

(e) there not having occurred a Material Adverse Change since September 30, 2010;

(f) all fees payable on or before the date hereof in connection with the Credit Facility under this Agreement and any fee letter shall have been paid to the Agent;

(g) there shall exist no Default or Event of Default;

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

-59-

(h) the Agent and Lenders shall have received confirmation that the Senior Bonds, Series 09-1 have a minimum rating of BBB- from S&P and BBB from DBRS.

11.2    Conditions Precedent to All Borrowings, Conversions.

The Lenders shall not be obliged to make available any portion of any Borrowing, or to give effect to any conversion or rollover, unless each of the following conditions is satisfied:

(a) the Agent shall have received any required Borrowing Notice;

(b) the Agent shall have received any required Documentary Credit agreement, or other Loan Document;

(c) there shall exist no Default or Event of Default on the applicable Borrowing Date, nor shall any arise as a result of giving effect to the requested Borrowing;

(d) all representations and warranties contained in ARTICLE 9 shall be true on and as of the Borrowing Date with the same effect as if such representations and warranties had been made on and as of such Borrowing Date; and

(e) all fees payable on or before the subsequent Borrowing in connection with the Credit Facility under this Agreement or any other Loan Document shall have been paid to the Agent and the Lenders, as applicable.

11.3    Waiver.

The Lenders may, at their option, waive any condition precedent set out in Section 11.1 or 11.2 or make available any Borrowing prior to such condition precedent being fulfilled. Any such Borrowing shall be deemed to be made pursuant to the terms hereof. Any such waiver shall not be effective unless it is in writing and shall not operate to excuse the Borrower from full and complete compliance with this ARTICLE 11 or any other provision hereof on future occasions.

ARTICLE 12

EVENTS OF DEFAULT

12.1    Events of Default.

Any of the following events shall constitute an "Event of Default" hereunder:

(a) Default in Payment of any Amount Hereunder. If the Borrower fails to pay (i) any principal amount of the Accommodations when such amount becomes due and payable, (ii) any interest or fees owing to the Lenders and/or Agent or any of them hereunder, or under any Loan Document when due and payable hereunder or thereunder and such failure shall remain unremedied for five (5) Business Days or (iii) any other amount owing to the Lenders and/or Agent or any of them hereunder, or under any Loan Document when due and payable hereunder or thereunder and such failure shall remain unremedied for five (5) Business Days;

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

-60-

(b) Representation or Warranty. If any representation and warranty made by the Borrower in or in connection with this Agreement or any of the other Loan Documents shall be untrue in any material respect on the date upon which it was given;

(c) Default in Negative Covenants.

(i) If the Borrower or any of its Subsidiaries (as applicable and as if each Subsidiary of the Borrower were party hereto) shall fail, refuse or default in any material respect with the performance or observance of any of the covenants contained in Sections 10.13, 10.15, 10.16(b) and 10.18 to 10.23 inclusive, and such failure shall continue unremedied for 15 days; or

(ii) If the Borrower or any of its Subsidiaries (as applicable and as if each Subsidiary of the Borrower were party hereto) shall fail, refuse or default in any material respect with the performance or observance of any of the covenants contained in Sections 10.14, 10.16(a), 10.17, 10.24 or 10.25, (provided that, in the case of Section 10.25, there shall be no Event of Default until the expiry of the applicable cure period, if any, under the Master Trust Indenture);

(d) Default in Other Provisions. If the Borrower or any of its Subsidiaries (as applicable and as if each Subsidiary of the Borrower were party hereto) shall fail, refuse or default in any material respect with the performance or observance of any of the other covenants, agreements or conditions contained herein and such failure, refusal or default adversely affects the Lenders and, such failure, refusal or default continues for a period of thirty (30) days after written notice thereof by the Agent;

(e) Indebtedness. If (i) the Borrower or any of its Subsidiaries fails to pay the principal of any of its Indebtedness (which shall, for greater certainty, exclude the Indebtedness under this Agreement but shall include (without limitation) the Indebtedness under the Master Trust Indenture and the Senior Bonds, Series 05-1 and Senior Bonds, Series 09-1) which is outstanding in an aggregate principal amount exceeding (x) Cdn. $15,000,000 in the case of the Borrower and (y) Cdn. $10,000,000 in the case of AltaLink or any other Subsidiary of the Borrower (or the Equivalent Amount in any other currency) when such amount becomes due and payable (whether by scheduled maturity, required prepayment, acceleration, demand or otherwise) and such failure continues after the applicable grace period, if any, specified in the agreement or instrument relating to such Indebtedness described in paragraphs (x) and (y) above, without waiver of such failure by the holder of such Indebtedness on or before the expiration of such period; or (ii) any other event occurs or condition exists (including a failure to pay the premium or interest on such Indebtedness) and continues after the applicable grace period, if any, specified in any agreement or instrument relating to any such Indebtedness without waiver of such failure by the holder of such Indebtedness on or before the expiration of such period, if the effect of such event is to accelerate, or permit the acceleration of, such Indebtedness; or (iii) any such Indebtedness shall be

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

-61-

declared to be, or otherwise becomes, due and payable prior to its stated maturity by reason of default;

(f) Judgment. The rendering of a judgment or judgments against the Borrower or any of its Subsidiaries, in an aggregate amount in excess of Cdn. $20,000,000 (or the Equivalent Amount in any other currency), by a court or courts of competent jurisdiction, which judgment or judgments remain undischarged and unstayed for a period of sixty (60) days;

(g) Change in Legislation. If there occurs any change in the Applicable Utilities Legislation or any other Applicable Laws resulting in a Material Adverse Effect on the Business of the Borrower or any of its Subsidiaries;

(h) Termination of Material Agreements, licenses etc.

(i) If any Material Agreement is terminated for any reason prior to the expiry of its term (except as contemplated thereunder) unless: (A) such Material Agreement is replaced by the Borrower with a contract on commercially reasonable terms or (B) such termination does not result in a Material Adverse Effect;

(ii) if a default occurs under, or if the Borrower fails to observe or perform any term, covenant or agreement contained in, any Material Agreement unless such default or failure does not result in a Material Adverse Effect; or

(iii) if any permit, license, consent or other authorization required to be kept in full force and effect hereunder with respect to the Business is revoked or suspended for any reason whatsoever and such revocation or suspension continues for a period of 45 days, unless the Borrower does not contest such revocation or suspension in good faith, diligently and by appropriate means;

(i) Winding Up. If an order shall be made or an effective resolution be passed for the winding-up or liquidation of the Borrower or any of its Subsidiaries or any such proceedings are initiated unless such proceedings are being actively and diligently contested by the Issuer in good faith;

(j) Bankruptcy or Insolvency. If the Borrower or any of its Subsidiaries shall make a general assignment for the benefit of its creditors or a notice of intention to make a proposal or a proposal under the Bankruptcy and Insolvency Act (Canada), or shall become insolvent or be declared or adjudged bankrupt, or a receiving order be made against the Borrower or any of its Subsidiaries or if a liquidator, trustee in bankruptcy, receiver, receiver and manager or any other officer with similar powers shall be appointed to the Borrower or any of its Subsidiaries, or if the Borrower or any of its Subsidiaries shall propose a compromise, arrangement or reorganization under the Companies' Creditors Arrangement Act (Canada) or

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

-62-

any other legislation of any jurisdiction (including corporate statutes, as applicable) providing for the reorganization or winding-up of Borrower or any of its Subsidiaries or business entities or providing for an arrangement, composition, extension or adjustment with its creditors or shall voluntarily suspend transaction of its usual business, or shall take corporate or other action in furtherance of any of the foregoing purposes;

(k) Receiver. If any proceeding for the appointment of a receiver or trustee for the Borrower or any of its Subsidiaries or for any substantial part of the property of the Borrower or any of its Subsidiaries which is material to the conduct of the Business, and any such receivership or trusteeship remains undischarged for a period of sixty (60) days, or if the Borrower or any of its Subsidiaries becomes bankrupt or unable to pay its obligations as they become due or is declared to be bankrupt or unable to pay its obligations as they become due;

(1) Full Force and Effect. If this Agreement or any material portion hereof shall, at any time after its respective execution and delivery and for any reason, cease in any way to be in full force and effect or if the validity or enforceability of this Agreement is disputed in any manner by such Borrower and the Credit Facility have not been repaid within 30 days of demand therefor by the Agent; and

(m) Change of Control. If there shall occur any Change of Control.

12.2    Remedies.

Upon the occurrence of any Default or Event of Default, and at any time thereafter if the Default or Event of Default shall then be continuing, the Lenders in their sole discretion may direct the Agent to give notice to the Borrower that no further Accommodation will be available hereunder while the Default or Event of Default continues, whereupon the Lenders shall not be obliged to provide any further Borrowings to the Borrower while the Default or Event of Default continues. Upon the occurrence of any Event of Default, and at any time thereafter if the Event of Default shall then be continuing, the Lenders in their sole discretion, and the Agent acting on their behalf, may take any or all of the following actions:

(a) demand payment of any principal, accrued interest, fees and other amounts which are then due and owing in respect of the Accommodation under the Credit Facility without presentment, protest or other notice of any kind, all of which are hereby expressly waived by the Borrower;

(b) declare by notice to the Borrower the Credit Facility terminated, whereupon the same shall terminate immediately without any further notice of any kind;

(c) commence such legal action or proceedings as it, in its sole discretion, may deem expedient, including the commencement of enforcement proceedings under the Loan Documents, all without any additional notice, presentation, demand, protest, notice of dishonour, entering into of possession of any of the assets, or any other action or notice, all of which the Borrower and General Partner hereby expressly waive; and

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

-63-

(d) demand payment of the Senior Pledged Bond, Series 2 in accordance with the provisions of the Bond Delivery Agreement.

12.3    Remedies Cumulative.

The rights and remedies of the Lenders and the Agent under this Agreement and the Loan Documents are cumulative and are in addition to and not in substitution for any other rights or remedies. Nothing contained herein or in the Loan Documents with respect to the indebtedness or liability of the Borrower to the Agent and the Lenders or any part thereof, nor any act or omission of the Agent and the Lenders with respect to the Loan Documents shall in any way prejudice or affect the rights, remedies and powers of the Agent and the Lenders hereunder or under the Loan Documents.

12.4    Appropriation of Moneys Received.

The Lenders, and the Agent on behalf of the Lenders as between the Lenders and the Borrower, may from time to time when an Event of Default has occurred and is continuing appropriate any monies received from the Borrower in or toward payment of such of the obligations of the Borrower hereunder as the Lenders in their sole discretion may see fit.

12.5    Non-Merger.

The taking of any action or dealing whatsoever by the Lender or the Agent in respect of the Borrower or any security shall not operate as a merger of any of the obligations of the Borrower to the Lenders or the Agent or in any way suspend payment or affect or prejudice the rights, remedies and powers, legal or equitable, which the Lenders or the Agent may have under Section 12.3 in connection with such obligations.

12.6    Waiver.

No delay on the part of the Lenders or the Agent in exercising any right or privilege hereunder shall operate as a waiver thereof. No Default or Event of Default shall be waived except by a written waiver in accordance with Section 21.1. Each written waiver shall apply only to the Default or Event of Default to which it is expressed to apply. No written waiver shall preclude the subsequent exercise by the Lenders or the Agent of any right, power or privilege hereunder or extend to or apply to any other Default or Event of Default.

12.7    Set-off.

Upon the occurrence and during the continuance of any Event of Default, each Lender is authorized at any time and from time to time, to the fullest extent permitted by law (including general principles of common law), to set off and apply any and all deposits (general or special, time or demand, provisional or final) at any time held and other indebtedness at any time owing by it to or for the credit or the account of the Borrower against any and all of the obligations of the Borrower under any of the Loan Documents, irrespective of whether or not the Lender has made demand under any of the Loan Documents and although such obligations may be unmatured or contingent. If an obligation is unascertained, the Lender may, in good faith, estimate the obligation and exercise its right of set-off in respect of the estimate, subject to providing the Borrower with an accounting when the obligation is finally determined. Each

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

-64-

Lender shall promptly notify the Borrower after any set-off and application is made by it, provided that the failure to give notice shall not affect the validity of the set-off and application. The rights of the Lenders under this Section 12.7 are in addition to other rights and remedies (including all other rights of set-off) which the Lenders may have.

ARTICLE 13

YIELD PROTECTION

13.1    Increased Costs.

(a) Increased Costs Generally. If any Change in Law shall:

(i) impose, modify or deem applicable any reserve, special deposit, compulsory loan, insurance charge or similar requirement against assets of, deposits with or for the account of, or credit extended or participated in by, any Lender;

(ii) subject any Lender to any Tax of any kind whatsoever with respect to this Agreement or any Accommodations made by it, or change the basis of taxation of payments to such Lender in respect thereof, except for Indemnified Taxes or Other Taxes covered by Section 13.2 and the imposition, or any change in the rate, of any Excluded Tax payable by such Lender; or

(iii) impose on any Lender or any applicable interbank market any other condition, cost or expense affecting this Agreement or Accommodations made by such Lender,

and the result of any of the foregoing shall be to increase the cost to such Lender of making or maintaining any Accommodation (or of maintaining its obligation to make any such Accommodation), or to increase the cost to such Lender, or to reduce the amount of any sum received or receivable by such Lender hereunder (whether of principal, interest or any other amount), then upon request of such Lender the Borrower will pay to such Lender such additional amount or amounts as will compensate such Lender for such additional costs incurred or reduction suffered.

(b) Capital Requirements. If any Lender determines that any Change in Law affecting such Lender, or any lending office of such Lender or such Lender's holding company, if any, regarding capital requirements has or would have the effect of reducing the rate of return on such Lender's capital or on the capital of such Lender's holding company, if any, as a consequence of this Agreement, the Commitments of such Lender or the Accommodations made by such Lender, to a level below that which such Lender or its holding company could have achieved but for such Change in Law (taking into consideration such Lender's policies and the policies of its holding company with respect to capital adequacy), then from time to time the Borrower will pay to such Lender such additional amount or amounts as will compensate such Lender or its holding company for any such reduction suffered.

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

-65-

(c) Certificates for Reimbursement. A certificate of a Lender setting forth the amount or amounts necessary to compensate such Lender or its holding company, as the case may be, as specified in paragraph (a) or (b) of this Section ("Additional Compensation"), including a description of the event by reason of which it believes it is entitled to such compensation, and supplying reasonable supporting evidence (including, in the event of a Change in Law, a photocopy of the applicable Law evidencing such change) and reasonable detail of the basis of calculation of the amount or amounts, and delivered to the Borrower shall be conclusive absent manifest error. The Borrower shall pay such Lender the amount shown as due on any such certificate within 10 days after receipt thereof. In the event the Lender subsequently recovers all or part of the Additional Compensation paid by the Borrower, it shall promptly repay an equal amount to the Borrower. The obligation to pay such Additional Compensation for subsequent periods will continue until the earlier of termination of the Accommodation or the Commitment affected by the Change in Law, change in capital requirement or the lapse or cessation of the Change in Law giving rise to the initial Additional Compensation. A Lender shall make reasonable efforts to limit the incidence of any such Additional Compensation and seek recovery for the account of the Borrower upon such Borrower's request at such Borrower's expense, provided such Lender in its reasonable determination suffers no appreciable economic, legal, regulatory or other disadvantage. Notwithstanding the foregoing provisions, a Lender shall only be entitled to rely upon the provisions of this Section 13.1 if and for so long as it is not treating the Borrower in any materially different or in any less favourable manner than is applicable to any other customers of such Lender, where such other customers are bound by similar provisions to the foregoing provisions of this Section 13 .1.

(d) Delay in Requests. Failure or delay on the part of any Lender to demand compensation pursuant to this Section shall not constitute a waiver of such Lender's right to demand such compensation, except that the Borrower shall not be required to compensate a Lender pursuant to this Section for any increased costs incurred or reductions suffered more than nine months prior to the date that such Lender notifies the Borrower of the Change in Law giving rise to such increased costs or reductions and of such Lender's intention to claim compensation therefore, unless the Change in Law giving rise to such increased costs or reductions is retroactive, in which case the nine-month period referred to above shall be extended to include the period of retroactive effect thereof.

13.2    Taxes.

(a) Payments Subject to Taxes. If any Credit Party, the Agent or any Lender is required by Applicable Law to deduct or pay any Indemnified Taxes (including any Other Taxes) in respect of any payment by or on account of any obligation of a Credit Party hereunder or under any other Loan Document, then (i) the sum payable shall be increased by that Credit Party when payable as necessary so that after making or allowing for all required deductions and payments (including deductions and payments applicable to additional sums payable under this Section) the Agent or Lender, as the case may be, receives an amount equal to the

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

-66-

sum it would have received had no such deductions or payments been required, (ii) the Credit Party shall make any such deductions required to be made by it under Applicable Law and (iii) the Credit Party shall timely pay the full amount required to be deducted to the relevant Governmental Authority in accordance with Applicable Law.

(b) Payment of Other Taxes by the Borrower. Without limiting the provisions of paragraph (1) above, the Borrower shall timely pay any Other Taxes to the relevant Governmental Authority in accordance with Applicable Law.

(c) Indemnification by the Borrower. The Borrower shall indemnify the Agent and each Lender, within 15 days after written demand therefor, for the full amount of any Indemnified Taxes or Other Taxes (including Indemnified Taxes or Other Taxes imposed or asserted on or attributable to amounts payable under this Section) paid by the Agent or such Lender and any penalties, interest and reasonable expenses arising therefrom or with respect thereto, whether or not such Indemnified Taxes or Other Taxes were correctly or legally imposed or asserted by the relevant Governmental Authority. A certificate as to the amount of such payment or liability delivered to the Borrower by a Lender (with a copy to the Agent), or by the Agent on its own behalf or on behalf of a Lender, shall be conclusive absent manifest error. In the event the Lender subsequently recovers all or part of the payment made under this Section paid by the Borrower, it shall promptly repay an equal amount to the Borrower. A Lender shall make reasonable efforts to limit the incidence of any payments under this Section and seek recovery for the account of the Borrower upon the Borrower's request at the Borrower's expense, provided such Lender in its reasonable determination suffers no appreciable economic, legal, regulatory or other disadvantage.

(d) Evidence of Payments. As soon as practicable after any payment of Indemnified Taxes or Other Taxes by a Credit Party to a Governmental Authority, the Credit Parties shall deliver to the Agent the original or a certified copy of a receipt issued by such Governmental Authority evidencing such payment, a copy of the return reporting such payment or other evidence of such payment reasonably satisfactory to the Agent.

(e) Status of Lenders. Any Foreign Lender that is entitled to an exemption from or reduction of withholding tax under the law of the jurisdiction in which the Borrower is resident for tax purposes, or any treaty to which such jurisdiction is a party, with respect to payments hereunder or under any other Loan Document shall, at the request of the Borrower, deliver to the Borrower (with a copy to the Agent), at the time or times prescribed by applicable Law or reasonably requested by the Borrower or the Agent, such properly completed and executed documentation prescribed by applicable Law as will permit such payments to be made without withholding or at a reduced rate of withholding. In addition any Lender, if requested by the Borrower or the Agent, shall deliver such other documentation prescribed by applicable Law or reasonably requested by the Borrower or the Agent as will enable the Borrower or the Agent to determine

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

-67-

whether or not such Lender is subject to withholding or information reporting requirements.

(f) Treatment of Certain Refunds and Tax Reductions. If the Agent or a Lender determines, in its sole discretion, that it has received a refund of any Taxes or Other Taxes as to which it has been indemnified by the Borrower or with respect to which a Credit Party has paid additional amounts pursuant to this Section 13.2 or that, because of the payment of such Taxes or Other Taxes, it has benefited from a reduction in Excluded Taxes otherwise payable by it, it shall pay to the Borrower or other Credit Party, as applicable, an amount equal to such refund or reduction (but only to the extent of indemnity payments made, or additional amounts paid, by the Borrower or other Credit Party under this Section with respect to the Taxes or Other Taxes giving rise to such refund or reduction), net of all out-of-pocket expenses of the Agent or such Lender, as the case may be, and without interest (other than any net after-Tax interest paid by the relevant Governmental Authority with respect to such refund). The Borrower or other Credit Party as applicable, upon the request of the Agent or such Lender, agrees to repay the amount paid over to the Borrower or other Credit Party (plus any penalties, interest or other charges imposed by the relevant Governmental Authority) to the Agent or such Lender if the Agent or such Lender is required to repay such refund or reduction to such Governmental Authority. This paragraph shall not be construed to require the Agent or any Lender to make available its tax returns (or any other information relating to its taxes that it deems confidential) to the Borrower or any other Person, to arrange its affairs in any particular manner or to claim any available refund or reduction.

13.3    Mitigation Obligations: Replacement of Lenders.

(a) Designation of a Different Lending Office. If any Lender requests compensation under Section 13.1, or requires the Borrower to pay any additional amount to any Lender or any Governmental Authority for the account of any Lender pursuant to Section 13.2, then such Lender shall use reasonable efforts to designate a different lending office for funding or booking its Accommodations hereunder or to assign its rights and obligations hereunder to another of its offices, branches or affiliates, if, in the judgment of such Lender (with the prior consent of the Borrower), such designation or assignment (i) would eliminate or reduce amounts payable pursuant to Section 13.1 or Section 13.2, as the case may be, in the future and (ii) would not subject such Lender to any unreimbursed cost or expense and would not otherwise be disadvantageous to such Lender. The Borrower hereby agrees to pay all reasonable out-of-pocket costs and expenses incurred by any Lender in connection with any such designation or assignment.

(b) Replacement of Lenders. If any Lender requests compensation under Section 13.1, if the Borrower is required to pay any additional amount to any Lender or any Governmental Authority for the account of any Lender pursuant to Section 13.2, if any Lender's obligations are suspended pursuant to Section 13.4 or if any Lender defaults in its obligation to fund Accommodations hereunder, then the Borrower may either, at its sole expense and effort, upon 10 days' notice

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

-68-

to such Lender and the Agent: (i) repay all outstanding amounts due to such affected Lender (or such portion which has not been acquired pursuant to clause (ii) below) and thereupon such Commitment of the affected Lender shall be permanently cancelled and the aggregate Commitment shall be permanently reduced by the same amount and the Commitment of each of the other Lenders shall remain the same; or (ii) require such Lender to assign, without recourse (in accordance with and subject to the restrictions contained in, and consents required by, Article 20), all of its interests, rights and obligations under this Agreement and the related Loan Documents to an assignee that shall assume such obligations (which assignee may be another Lender, if a Lender accepts such assignment), provided that:

(i) the Borrower pays the Agent the assignment fee specified in Section 20.l(b)(vi);

(ii) the assigning Lender receives payment of an amount equal to the outstanding principal of its Accommodations Outstanding and participations in disbursements under Letters of Credit, accrued interest thereon, accrued fees and all other amounts payable to it hereunder and under the other Loan Documents (including any breakage costs and amounts required to be paid under this Agreement as a result of prepayment to a Lender) from the assignee (to the extent of such outstanding principal and accrued interest and fees) or the Borrower (in the case of all other amounts);

(c) in the case of any such assignment resulting from a claim for compensation under Section 13.1 or payments required to be made pursuant to Section 13.2, such assignment will result in a reduction in such compensation or payments thereafter; and

(d) such assignment does not conflict with Applicable Law.

A Lender shall not be required to make any such assignment or delegation if, prior thereto, as a result of a waiver by such Lender or otherwise, the circumstances entitling the Borrower to require such assignment and delegation cease to apply.

13.4    Illegality.

If any Lender determines that any Applicable Law has made it unlawful, or that any Governmental Authority has asserted that it is unlawful, for any Lender or its applicable lending office to make or maintain any Accommodations, or to determine or charge interest rates based upon any particular rate, then, on notice thereof by such Lender to the Borrower through the Agent, any obligation of such Lender with respect to the activity that is unlawful shall be suspended until such Lender notifies the Agent and the Borrower that the circumstances giving rise to such determination no longer exist. Upon receipt of such notice, the Borrower shall, upon demand from such Lender (with a copy to the Agent), prepay or, if conversion would avoid the activity that is unlawful, convert any Accommodations, or take any necessary steps with respect to any Documentary Credits in order to avoid the activity that is unlawful. Upon any such

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

-69-

prepayment or conversion, the Borrower shall also pay accrued interest on the amount so prepaid or converted. Each Lender agrees to designate a different lending office if such designation will avoid the need for such notice and will not, in the good faith judgment of such Lender, otherwise be materially disadvantageous to such Lender.

ARTICLE 14

RIGHT OF SETOFF

14.1    Right of Setoff.

If an Event of Default has occurred and is continuing, each of the Lenders and each of their respective Affiliates is hereby authorized at any time and from time to time to set off and apply any and all deposits (general or special, time or demand, provisional or final, in whatever currency) at any time held and other obligations (in whatever currency) at any time owing by such Lender or any such Affiliate to or for the credit or the account of any Credit Party against any and all of the obligations of the Borrower or any Guarantor now or hereafter existing under this Agreement or any other Loan Document to such Lender, irrespective of whether or not such Lender has made any demand under this Agreement or any other Loan Document and although such obligations of the Credit Party may be contingent or unmatured or are owed to a branch or office of such Lender different from the branch or office holding such deposit or obligated on such indebtedness. The rights of each the Lenders and their respective Affiliates under this Section are in addition to other rights and remedies (including other rights of setoff, consolidation of accounts and bankers' lien) that the Lenders or their respective Affiliates may have. Each Lender agrees to promptly notify the Borrower and the Agent after any such setoff and application, but the failure to give such notice shall not affect the validity of such setoff and application. If any Affiliate of a Lender exercises any rights under this Section 14.1, it shall share the benefit received in accordance with Section 15.1 as if the benefit had been received by the Lender of which it is an Affiliate.

ARTICLE 15

SHARING OF PAYMENTS BY LENDERS

15.1    Sharing of Payments by Lenders.

If any Lender, by exercising any right of setoff or counterclaim or otherwise, obtains any payment or other reduction that might result in such Lender receiving payment or other reduction of a proportion of the aggregate amount of its Accommodations and accrued interest thereon or other obligations hereunder greater than its pro rata share thereof as provided herein, then the Lender receiving such payment or other reduction shall (a) notify the Agent of such fact, and (b) purchase (for cash at face value) participations in the Accommodations outstanding and such other obligations of the other Lenders, or make such other adjustments as shall be equitable, so that the benefit of all such payments shall be shared by the Lenders rateably in accordance with the aggregate amount of principal of and accrued interest on their respective Accommodations outstanding and other amounts owing them, provided that:

(a) if any such participations are purchased and all or any portion of the payment giving rise thereto is recovered, such participations shall be rescinded and the purchase price restored to the extent of such recovery, without interest;

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

-70-

(b) the provisions of this Section shall not be construed to apply to (x) any payment made by any Credit Party pursuant to and in accordance with the express terms of this Agreement or (y) any payment obtained by a Lender as consideration for the assignment of or sale of a participation in any of its Accommodations or participations in disbursements under Documentary Credits to any assignee or participant, other than to any Credit Party or any Affiliate of a Credit Party (as to which the provisions of this Section shall apply); and

(c) the provisions of this Section shall not be construed to apply to (w) any payment made while no Event of Default has occurred and is continuing in respect of obligations of the Borrower to such Lender that do not arise under or in connection with the Loan Documents, (x) any payment made in respect of an obligation that is secured by a Permitted Lien or that is otherwise entitled to priority over the Borrower's obligations under or in connection with the Loan Documents, (y) any reduction arising from an amount owing to a Credit Party upon the termination of derivatives entered into between the Credit Party and such Lender, or (z) any payment to which such Lender is entitled as a result of any form of credit protection obtained by such Lender.

The Credit Parties consent to the foregoing and agree, to the extent they may effectively do so under Applicable Law, that any Lender acquiring a participation pursuant to the foregoing arrangements may exercise against each Credit Party rights of setoff and counterclaim and similar rights of Lenders with respect to such participation as fully as if such Lender were a direct creditor of each Credit Party in the amount of such participation.

ARTICLE 16

AGENT'S CLAWBACK

16.1    Agent's Clawback.

(a) Funding by Lenders; Presumption by Agent. Unless the Agent shall have received notice from a Lender prior to the proposed date of any advance of funds that such Lender will not make available to the Agent such Lender's share of such advance, the Agent may assume that such Lender has made such share available on such date in accordance with the provisions of this Agreement concerning funding by Lenders and may, in reliance upon such assumption, make available to the Borrower a corresponding amount. In such event, if a Lender has not in fact made its share of the applicable advance available to the Agent, then the applicable Lender shall pay to the Agent forthwith on demand such corresponding amount with interest thereon, for each day from and including the date such amount is made available to the Borrower to but excluding the date of payment to the Agent, at a rate determined by the Agent in accordance with prevailing banking industry practice on interbank compensation. If such Lender pays such amount to the Agent, then such amount shall constitute such Lender's Accommodation included in such advance. If the Lender does not do so forthwith, the Borrower shall pay to the Agent forthwith on written demand such corresponding amount with interest thereon at the interest rate applicable to the advance in question. Any payment by the Borrower shall be without prejudice to

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

any claim the Borrower may have against a Lender that has failed to make such payment to the Agent.

(b) Payments by Borrower; Presumptions by Agent. Unless the Agent shall have received notice from the Borrower prior to the date on which any payment is due to the Agent for the account of any Lender hereunder that the Borrower will not make such payment, the Agent may assume that the Borrower has made such payment on such date in accordance herewith and may, in reliance upon such assumption, distribute the amount due to the Lenders. In such event, if the Borrower has not in fact made such payment, then each of the Lenders severally agrees to repay to the Agent forthwith on demand the amount so distributed to such Lender with interest thereon, for each day from and including the date such amount is distributed to it to but excluding the date of payment to the Agent, at a rate determined by the Agent in accordance with prevailing banking industry practice on interbank compensation.

ARTICLE 17

AGENCY

17.1    Appointment and Authority.

Each of the Lenders hereby irrevocably appoints the Agent to act on its behalf as the Agent hereunder and under the other Loan Documents and authorizes the Agent to take such actions on its behalf and to exercise such powers as are delegated to the Agent by the terms hereof or thereof, together with such actions and powers as are reasonably incidental thereto. The provisions of this Article are solely for the benefit of the Agent and the Lenders, and no Credit Party shall have rights as a third party beneficiary of any of such provisions.

17.2    Rights as a Lender.

The Person serving as the Agent hereunder shall have the same rights and powers in its capacity as a Lender as any other Lender and may exercise the same as though it were not the Agent and the term "Lender" or "Lenders" shall, unless otherwise expressly indicated or unless the context otherwise requires, include the Person serving as the Agent hereunder in its individual capacity. Such Person and its Affiliates may accept deposits from, lend money to, act as the financial advisor or in any other advisory capacity for and generally engage in any kind of business with any Credit Party or any Affiliate thereof as if such Person were not the Agent and without any duty to account to the Lenders.

17.3    Exculpatory Provisions.

(a) The Agent shall not have any duties or obligations except those expressly set forth herein and in the other Loan Documents. Without limiting the generality of the foregoing, the Agent:

(i) shall not be subject to any fiduciary or other implied duties, regardless of whether a Default has occurred and is continuing;

-72-

(ii) shall not have any duty to take any discretionary action or exercise any discretionary powers, except discretionary rights and powers expressly contemplated hereby or by the other Loan Documents that the Agent is required to exercise as directed in writing by the Majority Lenders (or such other number or percentage of the Lenders as shall be expressly provided for in the Loan Documents), but the Agent shall not be required to take any action that, in its opinion or the opinion of its counsel, may expose the Agent to liability or that is contrary to any Loan Document or applicable Law; and

(iii) shall not, except as expressly set forth herein and in the other Loan Documents,    have any duty to disclose, and shall not be liable for the failure to disclose, any information relating to the Borrower or any of their Affiliates that is communicated to or obtained by the person serving as the Agent or any of its Affiliates in any capacity.

(b) The Agent shall not be liable for any action taken or not taken by it (i) with the consent or at the request of the Majority Lenders (or such other number or percentage of the Lenders as is necessary, or as the Agent believes in good faith is necessary, under the provisions of the Loan Documents) or (ii) in the absence of its own gross negligence or wilful misconduct. The Agent shall be deemed not to have knowledge of any Default unless and until notice describing the Default is given to the Agent by the Borrower or a Lender.

(c) Except as otherwise expressly specified in this Agreement, the Agent shall not be responsible for or have any duty to ascertain or inquire into (i) any statement, warranty or representation made in or in connection with this Agreement or any other Loan Document, (ii) the contents of any certificate, report or other document delivered hereunder or thereunder or in connection herewith or therewith, (iii) the performance or observance of any of the covenants, agreements or other terms or conditions set forth herein or therein or the occurrence of any Default, (iv) the validity, enforceability, effectiveness or genuineness of this Agreement, any other Loan Document or any other agreement, instrument or document or (v) the satisfaction of any condition specified in this Agreement, other than to confirm receipt of items expressly required to be delivered to the Agent.

17.4    Reliance by Agent.

The Agent shall be entitled to rely upon, and shall not incur any liability for relying upon, any notice, request, certificate, consent, statement, instrument, document or other writing (including any electronic message, Internet or intranet posting or other distribution) believed by it to be genuine and to have been signed, sent or otherwise authenticated by the proper Person. The Agent also may rely upon any statement made to it orally or by telephone and believed by it to have been made by the proper Person, and shall not incur any liability for relying thereon. In determining compliance with any condition hereunder to the making of an Accommodation that by its terms must be fulfilled to the satisfaction of a Lender, the Agent may presume that such condition is satisfactory to such Lender unless the Agent shall have received notice to the

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

-73-

contrary from such Lender prior to the making of such Accommodation or the issuance of such Documentary Credit. The Agent may consult with legal counsel (who may be counsel for the Borrower), independent accountants and other experts selected by it, and shall not be liable for any action taken or not taken by it in accordance with the advice of any such counsel, accountants or experts.

17.5    Indemnification of Agent.

Each Lender agrees to indemnify the Agent and hold it harmless (to the extent not reimbursed by the Borrower), rateably according to its Applicable Percentage (and not jointly or jointly and severally) from and against any and all losses, claims, damages, liabilities and related expenses, including the fees, charges and disbursements of any counsel, which may be incurred by or asserted against the Agent in any way relating to or arising out of the Loan Documents or the transactions therein contemplated. However, no Lender shall be liable for any portion of such losses, claims, damages, liabilities and related expenses resulting from the Agent's gross negligence or wilful misconduct.

17.6    Delegation of Duties.

The Agent may perform any and all of its duties and exercise its rights and powers hereunder or under any other Loan Document by or through any one or more sub-agents appointed by the Agent from among the Lenders (including the Person serving as Agent) and their respective Affiliates. The Agent and any such sub-agent may perform any and all of its duties and exercise its rights and powers by or through their respective Related Parties. The provisions of this Article and other provisions of this Agreement for the benefit of the Agent shall apply to any such sub-agent and to the Related Parties of the Agent and any such sub-agent, and shall apply to their respective activities in connection with the syndication of the credit facilities provided for herein as well as activities as Agent.

17.7    Replacement of Agent.

(a) The Agent may at any time give notice of its resignation to the Lenders and the Borrower. Upon receipt of any such notice of resignation, the Majority Lenders shall have the right, with the prior consent of the Borrower, to appoint a successor, which shall be a Lender having an office in Toronto, Ontario or Calgary Alberta or an Affiliate of any such Lender with an office in Toronto or Calgary. The Agent may also be removed at any time by the Majority Lenders upon 30 days' notice to the Agent and the Borrower as long as the Majority Lenders, with the prior consent of the Borrower, appoint and obtain the acceptance of a successor within such 30 days, which shall have an office in Toronto/Calgary, or an Affiliate of any such Lender with an office in Toronto/Calgary.

(b) If no such successor shall have been so appointed by the Majority Lenders and shall have accepted such appointment within 30 days after the retiring Agent gives notice of its resignation, then the retiring Agent may on behalf of the Lenders, appoint a successor Agent meeting the qualifications specified in Section l 7.7(a), provided that if the Agent shall notify the Borrower and the

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

-74-

Lenders that no qualifying Person has accepted such appointment, then such resignation shall nonetheless become effective in accordance with such notice and (a) the retiring Agent shall be discharged from its duties and obligations hereunder and under the other Loan Documents (except that in the case of any collateral security held by the Agent on behalf of the Lenders under any of the Loan Documents, the retiring Agent shall continue to hold such collateral security until such time as a successor Agent is appointed); and (b) all payments, communications and determinations provided to be made by, to or through the Agent shall instead be made by or to each Lender directly, until such time as the Majority Lenders appoint a successor Agent as provided for above in the preceding paragraph.

(c) Upon a successor's appointment as Agent hereunder, such successor shall succeed to and become vested with all of the rights, powers, privileges and duties of the former Agent, and the former Agent shall be discharged from all of its duties and obligations hereunder or under the other Loan Documents (if not already discharged therefrom as provided in the preceding paragraph). The fees payable by the Borrower to a successor Agent shall be the same as those payable to its predecessor unless otherwise agreed between the Borrower and such successor. After the termination of the service of the former Agent, the provisions of this ARTICLE 17 and of ARTICLE 19 shall continue in effect for the benefit of such former Agent, its sub-agents and their respective Related Parties in respect of any actions taken or omitted to be taken by any of them while the former Agent was acting as Agent.

(d) The Parties hereto agree that notwithstanding the forgoing section, as of the date of this Agreement The Toronto-Dominion Bank shall have been replaced by RBC as Agent under the Existing Credit Agreement and RBC shall have been appointed successor Agent, and each of the parties hereto confirms and agrees with such appointment.

17.8    Non-Reliance on Agent and Other Lenders.

Each Lender acknowledges that it has, independently and without reliance upon the Agent or any other Lender or any of their Related Parties and based on such documents and information as it has deemed appropriate, made its own credit analysis and decision to enter into this Agreement. Each Lender also acknowledges that it will, independently and without reliance upon the Agent or any other Lender or any of their Related Parties and based on such documents and information as it shall from time to time deem appropriate, continue to make its own decisions in taking or not taking action under or based upon this Agreement, any other Loan Document or any related agreement or any document furnished hereunder or thereunder.

17.9    Collective Action of the Lenders.

Each of the Lenders hereby acknowledges that to the extent permitted by applicable Law, any collateral security and the remedies provided under the Loan Documents to the Lenders are for the benefit of the Lenders collectively and acting together and not severally and further acknowledges that its rights hereunder and under any collateral security are to be exercised not

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

-75-

severally, but by the Agent upon the decision of the Majority Lenders (or such other number or percentage of the Lenders as shall be expressly provided for in the Loan Documents). Accordingly, notwithstanding any of the provisions contained herein or in any collateral security, each of the Lenders hereby covenants and agrees that it shall not be entitled to take any action hereunder or thereunder including, without limitation, any declaration of default hereunder or thereunder but that any such action shall be taken only by the Agent with the prior written agreement of the Majority Lenders (or such other number or percentage of the Lenders as shall be expressly provided for in the Loan Documents). Each of the Lenders hereby further covenants and agrees that upon any such written agreement being given, it shall co-operate fully with the Agent to the extent requested by the Agent. Notwithstanding the foregoing, in the absence of instructions from the Lenders and where in the sole opinion of the Agent, acting reasonably and in good faith, the exigencies of the situation warrant such action, the Agent may without notice to or consent of the Lenders take such action on behalf of the Lenders as it deems appropriate or desirable in the interest of the Lenders.

17.10    No Other Duties, etc.

Anything herein to the contrary notwithstanding, none of the Bookrunners, Arrangers or holders of similar titles, if any, specified in this Agreement shall have any powers, duties or responsibilities under this Agreement or any of the other Loan Documents, except in its capacity, as applicable, as the Agent or a Lender hereunder.

ARTICLE 18

NOTICES: EFFECTIVENESS; ELECTRONIC COMMUNICATION

18.1    Notices, etc.

(a) Notices Generally. Except in the case of notices and other communications expressly permitted to be given by telephone (and except as-provided in paragraph (b) below), all notices and other communications provided for herein shall be in writing and shall be delivered by hand or overnight courier service, mailed by certified or registered mail or sent by facsimile or telecopier to the addresses or facsimile or telecopier numbers specified elsewhere in this Agreement or, if to a Lender, to it at its address or telecopier number specified in the Register or, if to a Credit Party other than the Borrower , in care of the Borrower.

Notices sent by hand or overnight courier service, or mailed by certified or registered mail, shall be deemed to have been given when received; notices sent by facsimile or telecopier shall be deemed to have been given when sent (except that, if not given on a Business Day between 9:00 a.m. and 5:00 p.m. local time where the recipient is located, shall be deemed to have been given at 9:00 a.m. on the next Business Day for the recipient). Notices delivered through electronic communications to the extent provided in paragraph (b) below, shall be effective as provided in said paragraph (b).

(b) Electronic Communications. Notices and other communications to the Lenders hereunder may be delivered or furnished by electronic communication (including e-mail and Internet or intranet websites) pursuant to procedures approved by the

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

-76-

Agent, provided that the foregoing shall not apply to notices to any Lender if such Lender has notified the Agent that it is incapable of receiving notices under such Article by electronic communication. The Agent or the Borrower may, in its discretion, agree to accept notices and other communications to it hereunder by electronic communications pursuant to procedures approved by it, provided that approval of such procedures may be limited to particular notices or communications.

Unless the Agent otherwise prescribes, (i) notices and other communications sent to an e• mail address shall be deemed received upon the sender's receipt of an acknowledgement from the intended recipient (such as by the "return receipt requested" function, as available, return e-mail or other written acknowledgement), provided that if such notice or other communication is not sent during the normal business hours of the recipient, such notice or communication shall be deemed to have been sent at the opening of business on the next business day for the recipient, and (ii) notices or communications posted to an Internet or intranet website shall be deemed received upon the deemed receipt by the intended recipient at its e-mail address as described in the foregoing clause (i) of notification that such notice or communication is available and identifying the website address therefor.

(c) Change of Address, Etc. Any party hereto may change its address or telecopier number for notices and other communications hereunder by notice to the other parties hereto.

ARTICLE 19

EXPENSES; INDEMNITY: DAMAGE WAIVER

19.1    Expenses; Indemnity: Damage Waiver.

(a) Costs and Expenses. The Borrower shall pay (i) all reasonable out-of-pocket expenses incurred by the Agent and its Affiliates, including the reasonable fees, charges and disbursements of counsel for the Agent, in connection with the preparation, negotiation, execution, delivery and administration of this Agreement and the other Loan Documents or any amendments, modifications or waivers of the provisions hereof or thereof (whether or not the transactions contemplated hereby or thereby shall be consummated), and (ii) all reasonable out-of-pocket expenses incurred by the Agent or any Lender including the reasonable fees, charges and disbursements of counsel, in connection with the enforcement or protection of its rights in connection with this Agreement and the other Loan Documents, including its rights under this Section, or in connection with the Accommodations issued hereunder, including all such out-of-pocket expenses incurred during any workout, restructuring or negotiations in respect of such Accommodations.

(b) Indemnification by the Borrower. The Borrower shall indemnify the Agent (and any sub-agent thereof), each Lender, and each Related Party of any of the foregoing Persons (each such Person being called an "lndemnitee") against, and hold each Indemnitee harmless from, any and all losses, claims, damages,

-77-

liabilities and related expenses, including the fees, charges and disbursements of any counsel for any Indemnitee, incurred by any Indemnitee or asserted against any lndemnitee by any third party or by any Credit Party arising out of, in connection with, or as a result of (i) the execution or delivery of this Agreement, any other Loan Document or any agreement or instrument contemplated hereby or thereby, the performance or non-performance by the parties hereto of their respective obligations hereunder or thereunder or the consummation or non• consummation of the transactions contemplated hereby or thereby, (ii) any Accommodation or the use or proposed use of the proceeds therefrom (including any refusal by the Documentary Credit Lender to honour a demand for payment under a Documentary Credit if the documents presented in connection with such demand do not strictly comply with the terms of such Documentary Credit), (iii) any actual or alleged presence or Release of Hazardous Substance on or from any property owned or operated by any Credit Party, or any Environmental Liabilities related in any way to any Credit Party, or (iv) any actual or prospective claim, litigation, investigation or proceeding relating to any of the foregoing, whether based on contract, tort or any other theory, whether brought by a third party or by a Credit Party and regardless of whether any lndemnitee is a party thereto, provided that such indemnity shall not, as to any Indemnitee, be available to the extent that such losses, claims, damages, liabilities or related expenses (x) are determined by a court of competent jurisdiction by final and nonappealable judgment to have resulted from the gross negligence or wilful misconduct of such lndemnitee or (y) result from a claim brought by the Borrower or any other Credit Party against an lndemnitee for breach of such lndemnitee's obligations hereunder or under any other Loan Document, if the Credit Party has obtained a final and nonappealable judgment in its favour on such claim as determined by a court of competent jurisdiction, nor shall it be available in respect of matters specifically addressed in Section 13.1, Section 13.2 and Section 19.l(a)

(c) Reimbursement by Lenders. To the extent that a Borrower for any reason fails to indefeasibly pay any amount required under paragraph (a) or (b) of this Section to be paid by it to the Agent (or any sub-agent thereof) or any Related Party of any of the foregoing, each Lender severally agrees to pay to the Agent (or any such sub-agent) or such Related Party, as the case may be, such Lender's Applicable Percentage (determined as of the time that the applicable unreimbursed expense or indemnity payment is sought) of such unpaid amount, provided that the umeimbursed expense or indemnified loss, claim, damage, liability or related expense, as the case may be, was incurred by or asserted against the Agent (or any such sub-agent) in its capacity as such, or against any Related Party of any of the foregoing acting for the Agent (or any such sub-agent) in connection with such capacity. The obligations of the Lenders under this paragraph (a) are subject to the other provisions of this Agreement concerning several liability of the Lenders.

(d) Waiver of Consequential Damages, Etc. To the fullest extent permitted by Applicable Law, the Credit Parties shall not assert, and hereby waive, any claim against any lndemnitee, on any theory of liability, for indirect, consequential, punitive, aggravated or exemplary damages (as opposed to direct damages)

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

-78-

arising out of, in connection with, or as a result of, this Agreement, any other Loan Document or any agreement or instrument contemplated hereby (or any breach thereof), the transactions contemplated hereby or thereby, any Accommodation or the use of the proceeds thereof. No Indemnitee shall be liable for any damages arising from the use by unintended recipients of any information or other materials distributed by it through telecommunications, electronic or other information transmission systems in connection with this Agreement or the other Loan Documents or the transactions contemplated hereby or thereby.

(e) Payments. All amounts due under this Section shall be payable promptly after demand therefor with documented particulars thereof. A certificate of the Agent or a Lender setting forth the amount or amounts owing to the Agent, Lender or a sub-agent or Related Party, as the case may be, as specified in this Section, including reasonable detail of the basis of calculation of the amount or amounts, and delivered to the Borrower shall be conclusive absent manifest error.

ARTICLE 20

SUCCESSORS AND ASSIGNS

20.1    Successors and Assigns.

(a) Successors and Assigns Generally. The provisions of this Agreement shall be binding upon and inure to the benefit of the parties hereto and their respective successors and assigns permitted hereby, except that no Credit Party may assign or otherwise transfer any of its rights or obligations hereunder without the prior written consent of the Agent and each Lender and no Lender may assign or otherwise transfer any of its rights or obligations hereunder except (i) to an Eligible Assignee in accordance with the provisions of paragraph (b) of this Section, (ii) by way of participation in accordance with the provisions of paragraph (d) of this Section, or (iii) by way of pledge or assignment of a security interest subject to the restrictions of paragraph (f) of this Section (and any other attempted assignment or transfer by any party hereto shall be null and void). Nothing in this Agreement, expressed or implied, shall be construed to confer upon any Person (other than the parties hereto, their respective successors and assigns permitted hereby, Participants to the extent provided in paragraph (d) of this Section and, to the extent expressly contemplated hereby, the Related Parties of each of the Agent and the Lenders) any legal or equitable right, remedy or claim under or by reason of this Agreement.

(b) Assignments by Lenders. Any Lender may at any time assign to one or more Eligible Assignees all or a portion of its rights and obligations under this Agreement (including all or a portion of its Commitment and the Accommodations outstanding at the time owing to it); provided that:

(i) except if an Event of Default has occurred and is continuing or in the case of an assignment of the entire remaining amount of the assigning Lender's Commitment and the Accommodations outstanding at the time owing to it or in the case of an assignment to a Lender or an Affiliate of a Lender or

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

-79-

an Approved Fund with respect to a Lender, the aggregate amount of the Commitment being assigned (which for this purpose includes Accommodations outstanding thereunder) or, if the applicable Commitment is not then in effect, the principal outstanding balance of the Accommodations outstanding of the assigning Lender subject to each such assignment (determined as of the date the Assignment and Assumption with respect to such assignment is delivered to the Agent or, if "Trade Date" is specified in the Assignment and Assumption, as of the Trade Date) shall not be less than $10,000,000, unless each of the Agent and, so long as no Event of Default has occurred and is continuing, the Borrower otherwise consent to a lower amount;

(ii) each partial assignment shall be made as an assignment of a proportionate part of all the assigning Lender's rights and obligations under this Agreement with respect to the Accommodations outstanding or the Commitment assigned, except that this clause (ii) shall not prohibit any Lender from assigning all or a portion of its rights and obligations among separate credits on a non-pro rata basis;

(iii) any assignment must be approved by the Documentary Credit Lender (such approval not to be unreasonably withheld or delayed) unless the Person that is the proposed assignee is itself already a Lender;

(iv) any assignment must be approved by the Agent (such approval not to be unreasonably withheld or delayed) unless the proposed assignee is a bank whose senior, unsecured, non-credit enhanced, long term debt is rated at least A3, A- or A low by at least two of Moodys, S&P and DBRS, respective I y;

(v) any assignment must be approved by the Borrower (such approval not to be unreasonably withheld or delayed) unless the proposed assignee is itself already a Lender or if an Event of Default has occurred and is continuing; and no assignment will be made to a Foreign Lender unless an Event of Default has occurred and is continuing; and

(vi) the parties to each assignment shall execute and deliver to the Agent an Assignment and Assumption, together with a processing and recordation fee of Cdn $3,500 and the Eligible Assignee, if it shall not be a Lender, shall deliver to the Agent an Administrative Questionnaire.

Subject to acceptance and recording thereof by the Agent pursuant to clause (iv) of this paragraph (b), from and after the effective date specified in each Assignment and Assumption, the Eligible Assignee thereunder shall be a party to this Agreement with respect to the interest assigned and, to the extent of the interest assigned by such Assignment and Assumption, have the rights and obligations of a Lender under this Agreement and the other Loan Documents, including any collateral security, and the assigning Lender thereunder shall, to the extent of the interest assigned by such Assignment and Assumption, be released from its obligations under this Agreement (and,

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

-80-

in the case of an Assignment and Assumption covering all of the assigning Lender's rights and obligations under this Agreement, such Lender shall cease to be a party hereto) but shall continue to be entitled to the benefits of ARTICLE 13 and ARTICLE 19, and shall continue to be liable for any breach of this Agreement by such Lender, with respect to facts and circumstances occurring prior to the effective date of such assignment. Any payment by an assignee to an assigning Lender in connection with an assignment or transfer shall not be or be deemed to be a repayment by the Borrower or a new Accommodations to the Borrower.

(c) Register. The Agent shall maintain at one of its offices in Toronto, Ontario a copy of each Assignment and Assumption delivered to it and a register for the recordation of the names and addresses of the Lenders, and the Commitments of, and principal amounts of the Accommodations outstanding owing to, each Lender pursuant to the terms hereof from time to time (the "Register"). The entries in the Register shall be conclusive, absent manifest error, and the Borrower, the Agent and the Lenders may treat each Person whose name is recorded in the Register pursuant to the terms hereof as a Lender hereunder for all purposes of this Agreement, notwithstanding notice to the contrary. The Register shall be available for inspection by the Borrower and any Lender, at any reasonable time and from time to time upon reasonable prior notice.

(d) Participations. Any Lender may at any time, without the consent of, or notice to, any Borrower or the Agent, sell participations to any Person (other than a natural person, a Credit Party or any Affiliate of a Credit Party ) (each, a "Participant") in all or a portion of such Lender's rights and/or obligations under this Agreement (including all or a portion of its Commitment and/or the Accommodations outstanding owing to it); provided that (i) such Lender's obligations under this Agreement shall remain unchanged, (ii) such Lender shall remain solely responsible to the other parties hereto for the performance of such obligations and (iii) the Borrower, the Agent and the other Lenders shall continue to deal solely and directly with such Lender in connection with such Lender's rights and obligations under this Agreement. Any payment by a Participant to a Lender in connection with a sale of a participation shall not be or be deemed to be a repayment by the Borrower or a new Loan to the Borrower.

Subject to paragraph (e) of this Section, the Borrower agrees that each Participant shall be entitled to the benefits of ARTICLE 13 to the same extent as if it were a Lender and had acquired its interest by assignment pursuant to paragraph (b) of this Section. To the extent permitted by Law, each Participant also shall be entitled to the benefits of ARTICLE 13 as though it were a Lender, provided such Participant agrees to be subject to ARTICLE 15 as though it were a Lender.

(e) Limitation on Participants Rights. A Participant shall not be entitled to receive any greater payment under Section 13.1 and Section 13.2 than the applicable Lender would have been entitled to receive with respect to the participation sold to such Participant, unless the sale of the participation to such Participant is made with the Borrower's prior written consent. A Participant that would be a Foreign Lender if it were a Lender shall not be entitled to the benefits of Section 13 .2.

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

-81-

(f) Certain Pledges. Any Lender may at any time pledge or assign a security interest in all or any portion of its rights under this Agreement to secure obligations of such Lender, but no such pledge or assignment shall release such Lender from any of its obligations hereunder or substitute any such pledgee or assignee for such Lender as a party hereto.

ARTICLE 21

AMENDMENTS AND WAIVERS

21.1    Amendments and Waivers.

(a) Subject to subsections (b) and (c), no acceptance, amendment or waiver of any provision of any of the Loan Documents, nor consent to any departure by the Borrower or any other Person from such provisions, shall be effective unless in writing and approved by the Majority Lenders. Any acceptance, amendment, waiver or consent shall be effective only in the specific instance and for the specific purpose for which it was given.

(b) Only written acceptances, amendments, waivers or consents signed by all the Lenders shall (i) increase a Lender's Commitment; (ii) reduce the principal or amount of, or interest on, directly or indirectly, any Accommodation outstanding or any fees; (iii) postpone any date fixed for any payment of principal of, or interest on, any Accommodation outstanding or any fees; (iv) change the percentage of the Commitments or the number or percentage of Lenders required for the Lenders, or any of them, or the Agent to take any action; (v) change the definition of Majority Lenders; (vi) release or cancel any security for any obligation of a Credit Party hereunder; or (vii) amend this Section 21.l(b).

(c) Only written acceptances, amendments, waivers or consents signed by the Agent, in addition to the Majority Lenders, shall affect the rights or duties of the Agent under the Loan Documents.

21.2    Judgment Currency.

(a) If,for the purposes of obtaining judgment in any court, it is necessary to convert a sum due to a Lender in any currency (the "Original Currency") into another currency (the "Other Currency"), the parties agree, to the fullest extent that they may effectively do so, that the rate of exchange used shall be that at which, in accordance with normal banking procedures, such Lender could purchase the Original Currency with the Other Currency on the Business Day preceding the day on which final judgment is given or, if permitted by Applicable Law, on the day on which the judgment is paid or satisfied.

(b) The obligations of the Borrower in respect of any sum due in the Original Currency from it to any Lender under any of the Loan Documents shall, notwithstanding any judgment in any Other Currency, be discharged only to the extent that on the Business Day following receipt by the Lender of any sum adjudged to be so due in the Other Currency, the Lender may, in accordance with

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

-82-

normal banking procedures, purchase the Original Currency with such Other Currency. If the amount of the Original Currency so purchased is less than the sum originally due to the Lender in the Original Currency, the Borrower agrees, as a separate obligation and notwithstanding the judgment, to indemnify the Lender, against any loss, and, if the amount of the Original Currency so purchased exceeds the sum originally due to the Lender in the Original Currency, the Lender shall remit such excess to the Borrower.

ARTICLE 22

GOVERNING LAW; JURISDICTION; ETC.

22.1    Governing Law; Jurisdiction; Etc.

(a) Governing Law. This Agreement shall be governed by, and construed in accordance with, the laws of the Province of Alberta and the laws of Canada applicable in that Province.

(b) Submission to Jurisdiction. Each Credit Party irrevocably and unconditionally submits, for itself and its property, to the nonexclusive jurisdiction of the courts of the Province of Alberta , and any appellate court from any thereof, in any action or proceeding arising out of or relating to this Agreement or any other Loan Document, or for recognition or enforcement of any judgment, and each of the parties hereto irrevocably and unconditionally agrees that all claims in respect of any such action or proceeding may be heard and determined in such court. Each of the parties hereto agrees that a final judgment in any such action or proceeding shall be conclusive and may be enforced in other jurisdictions by suit on the judgment or in any other manner provided by law. Nothing in this Agreement or in any other Loan Document shall affect any right that the Agent or any Lender may otherwise have to bring any action or proceeding relating to this Agreement or any other Loan Document against any Credit Party or its properties in the courts of any jurisdiction.

(c) Waiver of Venue. Each Credit Party irrevocably and unconditionally waives, to the fullest extent permitted by applicable Law, any objection that it may now or hereafter have to the laying of venue of any action or proceeding arising out of or relating to this Agreement or any other Loan Document in any court referred to in paragraph (b) of this Section. Each of the parties hereto hereby irrevocably waives, to the fullest extent permitted by Applicable Law, the defence of an inconvenient forum to the maintenance of such action or proceeding in any such court.

ARTICLE 23

WAIVER OF JURY TRIAL

23.1    Waiver of Jury Trial.

EACH PARTY HERETO HEREBY IRREVOCABLY WAIVES, TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, ANY RIGHT IT MAY HAVE TO A

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

-83-

TRIAL BY JURY IN ANY LEGAL PROCEEDING DIRECTLY OR INDIRECTLY ARISING OUT OF OR RELATING TO THIS AGREEMENT OR ANY OTHER LOAN DOCUMENT OR THE TRANSACTIONS XXXXX:MPLATED HEREBY OR THEREBY (WHETHER BASED ON CONTRACT, TORT OR ANY OTHER THEORY). EACH PARTY HERETO (A) CERTIFIES THAT NO REPRESENTATIVE, AGENT OR ATTORNEY OF ANY OTHER PERSON HAS REPRESENTED, EXPRESSLY OR OTHERWISE, THAT SUCH OTHER PERSON WOULD NOT, IN THE EVENT OF LITIGATION, SEEK TO ENFORCE THE FOREGOING WAIVER AND (B) ACKNOWLEDGES THAT IT AND THE OTHER PARTIES HERETO HAVE BEEN INDUCED TO ENTER INTO THIS AGREEMENT AND THE OTHER LOAN DOCUMENTS BY, AMONG OTHER THINGS, THE MUTUAL WAIVERS AND CERTIFICATIONS IN TIDS SECTION.

ARTICLE 24

COUNTERPARTS; INTEGRATION; EFFECTIVENESS; ELECTRONIC EXECUTION

24.1    Counterparts; Integration; Effectiveness; Electronic Execution.

(a) Counterparts; Integration; Effectiveness. This Agreement may be executed in counterparts (and by different parties hereto in different counterparts), each of which shall constitute an original, but all of which when taken together shall constitute a single contract. This Agreement shall become effective when it has been executed by the Agent and when the Agent has received counterparts hereof that, when taken together, bear the signatures of each of the other parties hereto. Delivery of an executed counterpart of a signature page of this Agreement by telecopy or by sending a scanned copy by electronic mail shall be effective as delivery of a manually executed counterpart of this Agreement.

(b) Electronic Execution of Assignments. The words "execution," "signed," "signature," and words of like import in any Assignment and Assumption shall be deemed to include electronic signatures or the keeping of records in electronic form, each of which shall be of the same legal effect, validity or enforceability as a manually executed signature or the use of a paper-based recordkeeping system, as the case may be, to the extent and as provided for in any Applicable Law, including Parts 2 and 3 of the Personal Information Protection and Electronic Documents Act (Canada), the Electronic Commerce Act, 2000 (Ontario), the Personal Information Protection Act (Alberta) and other similar federal or provincial laws based on the Uniform Electronic Commerce Act of the Uniform Law Conference of Canada or its Uniform Electronic Evidence Act, as the case maybe.

ARTICLE 25

TREATMENT OF CERTAIN INFORMATION: CONFIDENTIALITY

25.1    Treatment of Certain Information: Confidentiality.

(a) Each of the Agent and the Lenders agrees to maintain the confidentiality of the Information (as defined below), except that Information may be disclosed (a) to it,

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

-84-

its Affiliates and its and its Affiliates' respective partners, directors, officers, employees, agents, advisors and representatives (to the extent necessary to administer or enforce this Agreement and the other Loan Documents) (it being understood that the Persons to whom such disclosure is made will be informed of the confidential nature of such Information and instructed to keep such Information confidential), (b) to the extent requested by any regulatory authority having jurisdiction over it (including any self-regulatory authority), (c) to the extent required by applicable Laws or similar legal process, (d) to any other party hereto, ( e) in connection with the exercise of any remedies hereunder or under any other Loan Document or any action or proceeding relating to this Agreement or any other Loan Document or the enforcement of rights hereunder or thereunder, (t) subject to an agreement containing provisions substantially the same as those of this Section, to (i) any assignee of or Participant in, or any prospective assignee of or Participant in, any of its rights or obligations under this Agreement or (ii) any actual or prospective counterparty (or its advisors) to any swap, derivative, credit-linked note or similar transaction relating to the Borrower and its obligations, (g) with the consent of the Borrower or (h) to the extent such Information (x) becomes publicly available other than as a result of a breach of this Section by such Person or actually known to such Person or (y) becomes available to the Agent or any Lender on a non-confidential basis from a source other than a Credit Party. If the Agent or any Lender is requested or required to disclose any Information (other than by any bank examiner) pursuant to or as required by applicable Laws or by a subpoena or similar legal process, the Agent or such Lender, as applicable, shall use its reasonable commercial efforts to provide the Borrower with notice of such requests or obligation in sufficient time so that the Borrower may seek an appropriate protective order or waive the Agent's, or such Lender's, as applicable, compliance with the provisions of this Section, and the Agent and such Lender, as applicable, shall, to the extent reasonable, co-operate with the Borrower in the Borrower obtaining any such protective order.

(b) For purposes of this Section, "Information" means all information received from any Credit Party relating to any Credit Party or any of its Subsidiaries or any of their respective businesses, other than any such information that is available to the Agent or any Lender on a non-confidential basis prior to such receipt. Any Person required to maintain the confidentiality of Information as provided in this Section shall be considered to have complied with its obligation to do so if such Person has exercised the same degree of care to maintain the confidentiality of such Information as such Person would accord to its own confidential information. In addition, the Agent may disclose to any agency or organization that assigns standard identification numbers to loan facilities such basic information describing the facilities provided hereunder as is necessary to assign unique identifiers (and, if requested, supply a copy of this Agreement), it being understood that the Person to whom such disclosure is made will be informed of the confidential nature of such Information and instructed to make available to the public only such Information as such person normally makes available in the course of its business of assigning identification numbers.

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

-85-

(c) In addition, and notwithstanding anything herein to the contrary, the Agent may provide basic information concerning the Borrower and the credit facilities established herein to Loan Pricing Corporation and/or other recognized trade publishers of information for general circulation in the loan market.

ARTICLE 26

MISCELLANEOUS

26.1    Further Assurances

The Borrower shall, from time to time forthwith upon reasonable request by the Agent do, make and execute all such documents, acts, matters and things as may be required by the Agent to give effect to this Agreement and any of the Loan Documents.

26.2    Acknowledgement

The Borrower is a limited partnership formed under the Partnership Act (Alberta), a limited partner of which is only liable for any of its liabilities or any of its losses to the extent of the amount that such limited partner has contributed or agreed to contribute to its capital and such limited partner's pro rate share of any undistributed income.

26.3    Unmatured BAs on the Effective Date

Certain Banker's Acceptances in the aggregate principal amount of $69,500,000 which were issued under the Existing Credit Agreement have a maturity date which occurs after the Effective Date of this Amended and Restated Credit Agreement (the "Unmatured BAs"). As a result of this and the changes to each Lender's Applicable Percentage (the "New Percentage") hereunder, from each such Lender's Applicable Percentage under the Existing Credit Agreement (the "Old Percentage"), the Lenders hereby agree that (i) as of the Effective Date, each Lender's respective percentage allocation of Accommodations Outstanding in respect of the Unmatured BAs shall be that New Percentage set out in the last column of Schedule 6 to this Agreement and (2) those Lenders whose New Percentage is greater than its Old Percentage shall indemnify and hold harmless each of the Lenders whose New Percentage is less than its Old Percentage from and against any losses or costs paid or incurred by each of them in connection with the Unmatured BAs, in the event that the Borrower fails to pay such Unmatured BAs on their maturity dates, so as to give effect to the allocations under this Amended and Restated Credit Agreement in respect of such Unmatured BAs.

- remainder of page intentionally left blank -

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

IN WITNESS OF WHICH the parties hereto have duly executed this Agreement as of the date set forth on the first page of this Agreement

ALTALINK INVESTMENT MANAGEMENT LTD., in it's capacity as General Partner of ALTALINK INVESTMENTS, L.P.
By:	/s/ Nicolas Poplemon
	Name:	Nicolas Poplemon
	Title:	Director
By:	/s/ Xxxxxx X. Xxxxxxx
	Name:	Xxxxxx X. Xxxxxxx
	Title:	Vice President
ALTALINK INVESTMENT MANAGEMENT LTD.
By:	/s/ Nicolas Poplemon
	Name:	Nicolas Poplemon
	Title:	Director
By:	/s/ Xxxxxx X. Xxxxxxx
	Name:	Xxxxxx X. Xxxxxxx
	Title:	Vice President

ROYAL BANK OF CANADA, as Agent
By:	/s/ Xxxxxx Xxxxxxx
	Name:	Xxxxxx Xxxxxxx
	Title:	Manager Agency
By:
	Name:
	Title:

ROYAL BANK OF CANADA, as Lender
By:	/s/ Xxxxxxx X. Xxxxxx
	Name:	Xxxxxxx X. Xxxxxx
	Title:	Authorized Signatory
By:
	Name:
	Title:

BANK OF MONTREAL, as Lender
By:	/s/ Xxxx Xxxx
	Name:	Xxxx Xxxx
	Title:	Associate
By:	/s/ Xxxxx XxXxxxxx
	Name:	Xxxxx XxXxxxxx
	Title:	Vice President

ALBERTA TREASURY BRANCHES, as Lender
By:	/s/ Xxx Xxxxx
	Name:	Xxx Xxxxx
	Title:	Director, Energy ATB Financial
By:	/s/ Xxxxx Pankerichan
	Name:	Xxxxx Pankerichan
	Title:	Associate Director, Energy ATB Corporate Financial Services

NATIONAL BANK OF CANADA, as Lender
By:	/s/ Xxxx Xxxxxxx
	Name:	Xxxx Xxxxxxx
	Title:	Authorized Signatory
By:	/s/ Xxxx Xxxxxxxxxx
	Name:	Xxxx Xxxxxxxxxx
	Title:	Authorized Signatory

BANK OF NOVA SCOTIA, as Lender
By:	/s/ Xxx Xxxxxxxxx
	Name:	Xxx Xxxxxxxxx
	Title:	Managing Director
By:	/s/ Xxxxxxx Xxxxxxxx
	Name:	Xxxxxxx Xxxxxxxx
	Title:	Associate

SCHEDULE l

BORROWER'S CERTIFICATE OF COMPLIANCE

TO:    Royal Bank of Canada ("RBC"), as Agent for the Lenders, under the Credit Agreement

This Certificate is delivered to you pursuant to the amended and restated credit agreement made as of December 14, 2011 (as amended, restated or replaced from time to time, the "Credit Agreement") between AltaLink Investments, L.P., AltaLink Investment Management Ltd. and RBC, as Agent and Lender and the other Lenders party thereto. Capitalized terms used in this Certificate and not otherwise defined have the meanings given in the Credit Agreement.

The undersigned has read the provisions of the Credit Agreement which are relevant to the furnishing of this Certificate. The undersigned has made such examination and investigation as was, in the opinion of the undersigned, necessary to enable the undersigned to express an informed opinion on the matters set out herein.

The undersigned hereby certifies that as of the date hereof:

1. Representations and Warranties. All representations and warranties of the Borrower and the General Partner contained in the Credit Agreement are true and correct in all material respects as if made on and as of the date hereof, except as set out in Appendix I hereto or otherwise notified to the Agent under the Credit Agreement.

2. Default/Event of Default. No Default or Event of Default under the Credit Agreement has occurred and is continuing.

3. Financial Covenants. The Borrower is in compliance with the financial covenants set forth in Section 10.24 of the Credit Agreement and the detailed calculations evidencing such compliance are attached hereto.

4. Ratings. [The ratings assigned by each of the Rating Agencies to the Senior Bonds, Series 05-1 is: •and Senior Bonds, Series 09-1 is:•.]

5. Change of Control Compliance. The aggregate revenues and total Assets of all non• wholly-owned Subsidiaries of the Borrower does not exceed 10% of the revenue and net tangible total Assets of the Borrower and its Subsidiaries. The calculations detailing such compliance are attached hereto.

DATED this___________day of_______________, 200____.

ALTALINK INVESTMENT

MANAGEMENT LTD., as general partner of

ALTALINK INVESTMENTS, L.P.

By:

Name:

Title:

By:

Name:

Title:

ALTALINK INVESTMENT

MANAGEMENT LTD.

By:

Name:

Title:

By:

Name:

Title:

APPENDIX I

EXCEPTIONS AND QUALIFICATIONS TO

BORROWER'S CERTIFICATE OF COMPLIANCE

SCHEDULE 2(A)

BORROWING NOTICE

Royal Bank of Canada

Agency Services Group

000 Xxx Xxxxxx

Royal Xxxx Xxxxx

00xx Xxxxx

Xxxxxxx, XX X0X 0X0

Attention:     Manager Agency

Facsimile:    (000) 000-0000

The Lenders under the Credit Agreement

Dear Sirs:

You are hereby notified that the undersigned, intends to avail itself of the Credit Facility established in its favour pursuant to the amended and restated credit agreement made as of December 14, 2011 (as amended, restated or replaced from time to time, the "Credit Agreement") between AltaLink Investments, L.P., as Borrower, AltaLink Investment Management Ltd. and Royal Bank of Canada, as Agent and Lender, and the other Lenders which become a party thereto. Capitalized terms used in this Borrowing Notice and not otherwise defined have the meanings given in the Credit Agreement.

The undersigned hereby irrevocably requests a Borrowing as follows:

(a) Prime Rate Loan in the amount of Cdn.$•;

(b) U.S. Base Rate Loan in the amount of U.S.$•;

(c) LIBOR Loan in the amount of U.S.$•, having a term and LIBOR Interest Period of• months [add same provision for any other amount and term requested]; and

(d) Bankers' Acceptance in the aggregate amount of Cdn.$• having a term of • months [add same provision for any other amount and term requested].

All Loans made pursuant to this Notice of Borrowing shall be credited to the undersigned's account no.• at [insert account details]. In the case of a Bankers' Acceptance or Documentary Credit, it shall be delivered to •. The requested Borrowing Date is •. [If the undersigned requires a bank draft to be issued by RBC as a debit to the undersigned account at the Borrower's designated account and to be delivered on the undersigned's behalf, add an irrevocable direction to that effect, specifying the Person to whom it is to be delivered.]

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

All representations and warranties of the Borrower contained in the Credit Agreement are true and correct in all material respects as if made on and as of the date hereof.

No Default or Event of Default under the Credit Agreement has occurred and is continuing.

DATED this___________day of_______________, 200____.

ALTALINK INVESTMENT
MANAGEMENT LTD., as general partner of
ALTALINK INVESTMENTS, L.P.

By:

Name:

Title:

By:

Name:

Title:

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

SCHEDULE 2(B)

NOTICE OF ROLL OVER

Royal Bank of Canada

Agency Services Group

000 Xxx Xxxxxx

Royal Xxxx Xxxxx

00xx Xxxxx

Xxxxxxx, XX X0X 0X0

Attention:     Manager Agency

Facsimile:    (000) 000-0000

The Lenders under the Credit Agreement

Dear Sirs:

We refer to Section 2.5 of the amended and restated credit agreement made as of December 14, 2011 (as amended, restated or replaced from time to time, the "Credit Agreement") between AltaLink Investments, L.P., as Borrower, AltaLink Investment Management Ltd. and Royal Bank of Canada, as Agent and Lender, and the other Lenders which become a party thereto. Capitalized terms used in this Notice and not otherwise defined have the meanings given in the Credit Agreement.

The Borrower hereby confirms that:

(a) it intends to repay the following Bankers' Acceptances on the current maturity date:

(i) aggregate Face Amount - $: and

(ii) current maturity date ______________; and

(b) the following Bankers' Acceptances are to be rolled over in accordance with the Credit Agreement by the issuance of new Bankers' Acceptances on the current maturity date specified below:

(i) aggregate Face Amount of maturing Bankers' Acceptances - $;

(ii) current maturity date - ______________;

(iii) new aggregate Face Amount - $_________;

(iv) new contract period - ____________________; and

(v) new maturity date - __________________.

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

The Borrower hereby represents and warrants that the conditions contained in the Credit Agreement have been satisfied and will be satisfied as of the date hereof and before and after giving effect to such roll over on the applicable roll over date.

DATED this___________day of_______________, 200____.

ALTALINK INVESTMENT
MANAGEMENT LTD., as general partner of
ALTALINK INVESTMENTS, L.P.

By:

Name:

Title:

By:

Name:

Title:

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

SCHEDULE 2(C)

CONVERSION OPTION NOTICE

Royal Bank of Canada

Agency Services Group

000 Xxx Xxxxxx

Royal Xxxx Xxxxx

00xx Xxxxx

Xxxxxxx, XX X0X 0X0

Attention:     Manager Agency

Facsimile:    (000) 000-0000

The Lenders under the Credit Agreement

Dear Sirs:

We refer to Section 2.5 of the amended and restated credit agreement made as of December 14, 2011 (as amended, restated or replaced from time to time, the "Credit Agreement") between AltaLink Investments, L.P., as Borrower, AltaLink Investment Management Ltd. and Royal Bank of Canada, as Agent and Lender, and the other Lenders which become a party thereto. Capitalized terms used in this Notice and not otherwise defined have the meanings given in the Credit Agreement.

Pursuant to the Credit Agreement, we hereby give notice of our irrevocable request for a conversion of Advances in the amount of $_______________ outstanding by way of [insert type of loan] into corresponding Borrowings by way of [insert new type of loan] on the _________ day of ________________ , 200___. The contract period for the new Bankers' Acceptances shall be ___________with a new maturity date of _____________ , 200___.

The Borrower hereby represents and warrants that the conditions contained in the Credit Agreement have been satisfied and will be satisfied as of the date hereof and before and after giving effect to such conversion on the applicable conversion date.

DATED this___________day of_______________, 200____.

ALTALINK INVESTMENT
MANAGEMENT LTD., as general partner of
ALTALINK INVESTMENTS, L.P.

By:

Name:

Title:

By:

Name:

Title:

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

SCHEDULE 3

NOTICE OF EXTENSION

Royal Bank of Canada

Agency Services Group

000 Xxx Xxxxxx

Royal Xxxx Xxxxx

00xx Xxxxx

Xxxxxxx, XX X0X 0X0

Attention:    Manager Agency

Facsimile:    (000) 000-0000

Dear Sirs:

You are hereby notified that the undersigned wishes to extend the Maturity Date of each Lender for a three hundred and sixty-five (365) day period. Capitalized terms used in this Notice of Extension and not otherwise defined have the meanings given in the amended and restated credit agreement made as of December 14, 2011 between AltaLink Investments L.P., as Borrower, AltaLink Investment Management Ltd. and Royal Bank of Canada, as Agent and Lender, and the other Lenders party thereto, as amended, restated or replaced from time to time.

DATED this___________day of_______________, 200____.

ALTALINK INVESTMENT
MANAGEMENT LTD., as general partner of
ALTALINK INVESTMENTS, L.P.

By:

Name:

Title:

By:

Name:

Title:

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

SCHEDULE 4

FORM OF ISSUE NOTICE

[Date]

Royal Bank of Canada

Agency Services Group

000 Xxx Xxxxxx

Royal Xxxx Xxxxx

00xx Xxxxx

Xxxxxxx, XX X0X 0X0

Attention:    Manager Agency

Facsimile:    (000) 000-0000

Ladies and Gentlemen:

We refer to Section 3.2 of the amended and restated credit agreement made as of December 14, 2011 (as amended, restated or replaced from time to time, the "Credit Agreement") between AltaLink Investments, L.P., as Borrower, AltaLink Investment Management Ltd. and Royal Bank of Canada, as Agent and Lender, and the other Lenders which become a party thereto. Capitalized terms used in this Notice and not otherwise defined have the meanings given in the Credit Agreement.

The undersigned hereby gives you notice pursuant to Section 3.2 of the Credit Agreement that the Borrower hereby requests an Issue under the Credit Agreement, and, in that connection, sets forth below the information relating to such Issue as required by Section 3.2 of the Credit Agreement:

(a) The date of Issue, being a Business Day, is•.

(b) The face amount of such Documentary Credit is Cdn $•!US$•.

(c) The expiration date of such Documentary Credit, being a Business Day is•.

(d) The proposed type of Documentary Credit is [letter of credit][letter of guarantee].

(e) The name and address of the Beneficiary is•.

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

(f) [Insert any special terms or conditions for the Documentary Credit.]

Yours truly,

ALTALINK INVESTMENT
MANAGEMENT LTD., as general partner of
ALTALINK INVESTMENTS, L.P.

By:

Name:

Title:

By:

Name:

Title:

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

SCHEDULE 5

ASSIGNMENT AND ASSUMPTION

This Assigmnent and Assumption (the "Assignment and Assumption") is dated as of the Effective Date set forth below and is entered into by and between [Insert name of Assignor] (the "Assignor") and [Insert name of Assignee] (the "Assignee"). Capitalized terms used but not defined herein shall have the meanings given to them in the Credit Agreement identified below (as amended, the "Credit Agreement"), receipt of a copy of which is hereby acknowledged by the Assignee. The Standard Terms and Conditions set forth in Annex 1 attached hereto are hereby agreed to and incorporated herein by reference and made a part of this Assigmnent and Assumption as if set forth herein in full.

For an agreed consideration, the Assignor hereby irrevocably sells and assigns to the Assignee, and the Assignee hereby irrevocably purchases and assumes from the Assignor, subject to and in accordance with the Standard Terms and Conditions and the Credit Agreement, as of the Effective Date inserted by the Administrative Agent as contemplated below (i) all of the Assignor's rights and obligations in its capacity as a Lender under the Credit Agreement and any other documents or instruments delivered pursuant thereto to the extent related to the amount and percentage interest identified below of all of such outstanding rights and obligations of the Assignor under the respective facilities identified below (including without limitation any letters of credit, guarantees, and swingline loans included in such facilities) and (ii) to the extent permitted to be assigned under Applicable Law, all claims, suits, causes of action and any other right of the Assignor (in its capacity as a Lender) against any Person, whether known or unknown, arising under or in connection with the Credit Agreement, any other documents or instruments delivered pursuant thereto or the loan-transactions governed thereby or in any way based on or related to any of the foregoing, including, but not limited to, contract claims, tort claims, malpractice claims, statutory claims and all other claims at law or in equity related to the rights and obligations sold and assigned pursuant to clause (i) above (the rights and obligations sold and assigned pursuant to clauses (i) and (ii) above being referred to herein collectively as, the "Assigned Interest"). Such sale and assignment is without recourse to the Assignor and, except as expressly provided in this Assigmnent and Assumption, without representation or warranty by the Assignor.

1. Assignor:        _____________________

2. Assignee:        _____________________

[and is an Affiliate/Approved Fund of [identify Lender]¹]

3. Borrower(s):        _____________________

4. Administrative Agent: Royal Bank of Canada, as the administrative agent under the Credit Agreement

___________________

¹ Select as applicable

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

5. Credit Agreement: The Credit Agreement dated as of December 14, 2011, among AltaLink Investments L.P., the Lenders parties thereto, Royal Bank of Canada as Administrative Agent, and the other agents parties thereto, as amended, restated or replaced from time to time.

6. Assigned Interest:

Aggregate Amount of Commitment/Loans for all Lenders2	Amount of Commitment/Loans Assigned	Percentage Assigned of Commitment/Loans3	CUSIP Number
$	$	%
$	$	%
$	$	%

7.    Trade Date        ______________⁴ 

^{____________________________________} 

²  Amount to be adjusted by the counterparties to take into account any payments or prepayments made between the Trade Dates and the Effective Date.

³  Set forthe, to at least 9 decimals, as a percentage of the Commitment/Loans of all Lenders thereunder.

⁴  To be completed if the Assignor and the Assignee intend that the minimum assignment amount is to be determined as of the Trade Date

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

Effective Date:_________________ , 20____ [TO BE INSERTED BY ADMINISTRATIVE AGENT AND WHICH SHALL BE THE EFFECTIVE DATE OF RECORDATION OF TRANSFER IN THE REGISTER THEREFOR.]

The terms set forth in this Assignment and Assumption are hereby agreed to:

ASSIGNOR

[NAME OF ASSIGNOR]

By:________________________

Title:

ASSIGNOR

[NAME OF ASSIGNOR]

By:________________________

Title:

Consented to and Accepted:

Royal Bank of Canada, as

Administrative Agent

By_____________________________

Title:

[Consented to:]⁵ 

[NAME OF RELEVANT PARTY]

By_____________________________

Title:

_________________________

⁵    To be added only if the consent of the Borrower and/or other parties (e.g. Documentary Credit Lender) is required by the terms of the Credit Agreement.

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

ANNEX 1 to Assignment and Assumption

STANDARD TERMS AND CONDITIONS FOR ASSIGNMENT AND ASSUMPTION

1. Representations and Warranties.

1.1    Assignor. The Assignor (a) represents and warrants that (i) it is the legal and beneficial owner of the Assigned Interest, (ii) the Assigned Interest is free and clear of any lien, encumbrance or other adverse claim and (iii) it has full power and authority, and has taken all action necessary, to execute and deliver this Assignment and Assumption and to consummate the transactions contemplated hereby; and (b) assumes no responsibility with respect to (i) any statements, warranties or representations made in or in connection with the Credit Agreement or any other Loan Document, (ii) the execution, legality, validity, enforceability, genuineness, sufficiency or value of the Loan Documents or any collateral thereunder, (iii) the financial condition of the Borrower, any of its Subsidiaries or Affiliates or any other Person obligated in respect of any Loan Document or (iv) the performance or observance by the Borrower, any of its Subsidiaries or Affiliates or any other Person of any of their respective obligations under any Loan Document.

1.2    Assignee. The Assignee (a) represents and warrants that (i) it has full power and authority, and has taken all action necessary, to execute and deliver this Assignment and Assumption and to consummate the transactions contemplated hereby and to become a Lender under the Credit Agreement, (ii) it meets all requirements of an Eligible Assignee under the Credit Agreement (subject to receipt of such consents as may be required under the Credit Agreement), (iii) from and after the Effective Date, it shall be bound by the provisions of the Credit Agreement as a Lender thereunder and, to the extent of the Assigned Interest, shall have the obligations of a Lender thereunder, (iv) it has received a copy of the Credit Agreement, together with copies of the most recent financial statements delivered pursuant to Section _ thereof, as applicable, and such other documents and information as it has deemed appropriate to make its own credit analysis and decision to enter into this Assignment and Assumption and to purchase the Assigned Interest on the basis of which it has made such analysis and decision independently and without reliance on the Administrative Agent or any other Lender, and (v) if it is a Foreign Lender, attached to the Assignment and Assumption is any documentation required to be delivered by it pursuant to the terms of the Credit Agreement, duly completed and executed by the Assignee; and (b) agrees that (i) it will, independently and without reliance on the Administrative Agent, the Assignor or any other Lender, and based on such documents and information as it shall deem appropriate at the time, continue to make its own credit decisions in taking or not taking action under the Loan Documents, and (ii) it will perform in accordance with their terms all of the obligations which by the terms of the Loan Documents are required to be performed by it as a Lender.

2. Payments. From and after the Effective Date, the Administrative Agent shall make all payments in respect of the Assigned Interest (including payments of principal, interest, fees and other amounts) to the Assignee whether such amounts have accrued prior to, on or after the Effective Date. The Assignor and the Assignee shall make all appropriate adjustments in payments by the Administrative Agent for periods prior to the Effective Date or with respect to the making of this assignment directly between themselves.

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

3. General Provisions. This Assignment and Assumption shall be binding upon, and inure to the benefit of, the parties hereto and their respective successors and permitted assigns. This Assignment and Assumption may be executed in any number of counterparts, which together shall constitute one instrument. Delivery of an executed counterpart of a signature page of this Assignment and Assumption by telecopy or by sending a scanned copy by electronic mail shall be effective as delivery of a manually executed counterpart of this Assignment and Assumption. This Assignment and Assumption shall be governed by, and construed in accordance with, the law governing the Credit Agreement.

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

SCHEDULE 6

COMMITMENTS OF THE LENDERS

Lenders	Lender's Commitment (Cdn.$)	Applicable Percentage
Royal Bank of Canada	$100,000,000	33.3	%
Bank of Montreal	$75,000,000	25	%
Bank of Nova Scotia	$65,000,000	21.7	%
National Bank of Canada	$40,000,000	13.3	%
Alberta Treasury Branches	$20,000,000	6.7	%

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

SCHEDULE 6.l(A)

FORM OF NOTICE OF REPAYMENT

(Letter to be typed on Borrower's Letterhead)

,200_

Royal Bank of Canada

Agency Services Group

000 Xxx Xxxxxx

Royal Xxxx Xxxxx

00xx Xxxxx

Xxxxxxx, XX X0X 0X0

Attention:    Manager Agency

Facsimile:    (000) 000-0000

REPAYMENT NOTICE

Dear Sirs:

We refer to Section 6.l(a) of the amended and restated credit agreement made as of December 14 2011 (as amended, restated or replaced from time to time, the "Credit Agreement") between AltaLink Investments, L.P., as Borrower, AltaLink Investment Management Ltd. and Royal Bank of Canada, as Agent and Lender, and the other Lenders which become a party thereto. Capitalized terms used in this Notice and not otherwise defined have the meanings given in the Credit Agreement.

We hereby notify the Agent of our repayment of the Loan subject to and in accordance with the terms and provisions of the Credit Agreement in the amount of:

A. Repayment amount :    __________________

Prime Rate Loan:        __________________

BA Rate Loan:            __________________    Maturity Date ___________

US Base Rate Loan:        __________________

LIBOR Loan:            __________________    Maturity Date ___________

B. Date of repayment:        ______________________

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

Proceeds of the repayment are to be deposited to the account of the Agent as follows:

Bank Name:

Account Name:

Transit #:

Account Number:            CAD            USD

Yours truly,

ALTALINK INVESTMENT
MANAGEMENT LTD., as general partner of
ALTALINK INVESTMENTS, L.P.

By:

Name:

Title:

By:

Name:

Title:

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

SCHEDULE 7

SENIOR PLEDGED BOND, SERIES 2

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

FORM OF SENIOR PLEDGED BOND, SERIES 2

ALTALINK INVESTMENTS, L.P.

a limited partnership formed under

the laws of Alberta

Senior Pledged Bond, Series 2                        Cdn. $350,000,000

ALTALINK INVESTMENTS, L.P. CAPITAL MARKETS PLATFORM-BOND

ALTALINK INVESTMENTS, L.P. (herein called the "Issuer") for value received hereby acknowledges that it is indebted to and promises to pay to the registered holder hereof upon demand the sum of Three Hundred and Fifty Million Dollars ($350,000,000.00), in· 1awful money of Canada at the office of the BNY Trust Company of Canada (the "Trustee") in the City of Xxxxxxx, Xxxxxxx, Xxxxxx and to pay interest thereon in accordance . with the Credit Agreement, such interest to accrue from the date hereof, or in the case of any amounts in default from the date of default, at the applicable rates of interest per annum as set out in Section 2.4 of the Third Supplemental Indenture (defined below), as well after as before demand, default and judgment with interest on any such interest overdue at the same rate in like money at the same. place and on demand.

This Bond is one of a duly authorized series of Altalink Investments, L.P. Capital Markets Platform Bonds, issued and to be issued under a trust indenture (herein called the "Master Indenture") made as of November 21, 2005, among the Issuer, the General Partner and the Trustee, as supplemented by the Third Supplemental Indenture (the "Third Supplemental Indenture") dated as of December 15, 2010, between the same parties as each may be amended, supplemented or otherwise modified from time to time.

Terms used in this Bond which are defined in the Master Indenture or the Third Supplemental Indenture shall, except as otherwise provided herein, have the respective meanings ascribed to them in the Master Indenture or the Third Supplemental Indenture, as applicable.

Reference is hereby made to the provisions of the Master Indenture (including, without limitation, section 2.8 thereof) and, where applicable, the Third Supplemental Indenture and the Bond Delivery Agreement, as to the rights of the holder of this Bond, the rights of the holders of the Altalink Investments, L.P. Capital Markets Platform Bonds issued and to be issued under the Master Indenture and of the Issuer and of the Trustee in respect thereof and the terms and conditions upon which this Bond and the Altalink Investments, L.P. Capital Markets Platform Bonds are issued or may hereafter be issued, all to the same effect as if the provisions of the Master Indenture and, where applicable, the Third Supplemental Indenture and . the Bond Delivery Agreement, were herein set forth, to all of which provisions, terms and conditions the holder of this Bond agrees by acceptance hereof. ·

The Bond shall be transferable only in accordance with the provisions, terms and conditions of the Master Indenture and the Third Supplemental Indenture. No transfer of this Bond shall be valid unless made on the register kept by and at the office of the Trustee in the City of Toronto, Ontario pursuant to the provisions of the Master Indenture.

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

This Bond shall not be entitled to any right or benefit under the Master Indenture or the Third Supplemental Indenture nor shall it be valid or obligatory for any purpose until a certificate of authentication in respect of this Bond is duly executed by the Trustee.

This Bond is an unsecured Pledged Bond and Senior Bond of the Issuer.

IN WITNESS WHEREOF the Issuer has duly executed this Senior Pledged Bond, Series 2 as of this l?th day of December, 2010.

THIS BOND IS SUBJECT TO THE TERMS AND CONDITIONS OF A BOND DELIVERY AGREEMENT DATED AS OF DECEMBER 15, 2010 BETWEEN ALTALINK INVESTMENT MANAGEMENT LTD., AS GENERAL PARTNER OF ALTALINK INVESTMENTS, L.P., ALTALINK INVESTMENT MANAGEMENT LTD. AND ROYAL BANK OF CANADA, AS AGENT, MADE IN ACCORDANCE WITH SECTION 2.8 OF THE MASTER INDENTURE.		ALTALINK INVESTMENT MANAGEMENT LTD., as general partner of ALTALINK INVESTMENTS, L.P.
		By:
			Name:
			Title:
		By:
			Name:
			Title:

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

TRUSTEE'S CERTIFICATE

This AltaLink Investments, L.P. Capital Markets Platform Bond is one of the Bonds referred to in the Master Indenture within mentioned and is the Senior Pledged Bond, Series 2 issued under the Third Supplemental Indenture within mentioned.

BNY TRUST COMPANY OF CANADA, as Trustee

By:

Authorized Signing Officer

By:

Authorized Signing Officer

(Form of.Registration Panel)

(No writing hereon except by the Trustee or other registrar)

DATE OF REGISTRATION	IN WHOSE NAME REGISTERED	TRUSTEE (OR REGISTRAR)
December 15, 2010	Royal Bank of Canada

SCHEDULE 8

FORM OF THIRD SUPPLEMENTAL INDENTURE

RBC-AltaLink-Amended and Restated Credit Agreement

LEGAL_1:22094689.5

SCHEDULE 9.l(A)

CREDIT PARTY AND SUBSIDIARY INFORMATION

SCHEDULE 10

MATERIAL AGREEMENTS

nil