Common use of Agreed Currency Clause in Contracts

Agreed Currency. 1 Which must comply with the definition of “Interest Period” and end not later than the Maturity Date. Very truly yours, [NEWMARKET CORPORATION, as the Company][[BORROWER], as Borrower] By: Name: Title: EXHIBIT G-3 FORM OF SWINGLINE BORROWING REQUEST JPMorgan Chase Bank, N.A., as Administrative Agent for the Lenders referred to below [ ] [ ] Attention: [ ] Fax: [ ] Re: NewMarket Corporation [Date] Ladies and Gentlemen: Reference is hereby made to the Credit Agreement dated as of September 22, 2017 (as amended, supplemented or otherwise modified from time to time, the “Credit Agreement”), among NewMarket Corporation (the “Company”), the Foreign Subsidiary Borrowers from time to time party thereto (collectively with the Company, the “Borrowers”), the Lenders from time to time party thereto and JPMorgan Chase Bank, N.A., as administrative agent (in such capacity, the “Administrative Agent”). The Company hereby gives you notice pursuant to Section 2.05 of the Credit Agreement that it requests a Swingline Loan under the Credit Agreement, and in that connection the Company specifies the following information with respect to such Swingline Loan requested hereby:

Agreed Currency. 1 Which must comply with the definition of “Interest Period” and end not later than the Maturity Date. Very truly yours, [NEWMARKET CORPORATION, as the Company][[BORROWER], as Borrower] By: Name: Title: EXHIBIT G-3 FORM OF SWINGLINE BORROWING REQUEST JPMorgan Chase Bank, N.A., as Administrative Agent for the Lenders referred to below [ ] [ ] Attention: [ ] Fax: [ ] Re: NewMarket Corporation [Date] Ladies and Gentlemen: Reference is hereby made to the Credit Agreement dated as of September 22October 28, 2017 2014 (as amended, supplemented or otherwise modified from time to time, the “Credit Agreement”), among NewMarket Corporation (the “Company”), the Foreign Subsidiary Borrowers from time to time party thereto (collectively with the Company, the “Borrowers”), the Lenders from time to time party thereto and JPMorgan Chase Bank, N.A., as administrative agent (in such capacity, the “Administrative Agent”). The Company hereby gives you notice pursuant to Section 2.05 of the Credit Agreement that it requests a Swingline Loan under the Credit Agreement, and in that connection the Company specifies the following information with respect to such Swingline Loan requested hereby:

Agreed Currency. 1 Which must comply with the definition of “Interest Period” and end not later than the Maturity Date. Very truly yours, [NEWMARKET CORPORATION, as the Company][[BORROWER], as Borrower] By: Name: Title: EXHIBIT G-3 I-3 FORM OF SWINGLINE BORROWING REQUEST JPMorgan Chase Bank, N.A., as Administrative Agent for the Lenders referred to below [ ] [ ] Attention: [ ] Fax: [ ] Re: NewMarket Corporation [Date] Ladies and Gentlemen: Reference is hereby made to the Credit Agreement dated as of September 22March 14, 2017 2012 (as amended, supplemented or otherwise modified from time to time, the “Credit Agreement”), among NewMarket Corporation (the “Company”), the Foreign Subsidiary Borrowers from time to time party thereto (collectively with the Company, the “Borrowers”), the Lenders from time to time party thereto and JPMorgan Chase Bank, N.A., as administrative agent (in such capacity, the “Administrative Agent”). The Company hereby gives you notice pursuant to Section 2.05 of the Credit Agreement that it requests a Swingline Loan under the Credit Agreement, and in that connection the Company specifies the following information with respect to such Swingline Loan requested hereby:

Agreed Currency. 1 Which must comply with the definition of “Interest Period” and end not later than the Maturity Date. Very truly yours, [NEWMARKET CORPORATION, as the Company][[BORROWER], as Borrower] By: Name: Title: EXHIBIT G-3 I-3 FORM OF SWINGLINE BORROWING REQUEST JPMorgan Chase Bank, N.A., as Administrative Agent for the Lenders referred to below [ ] [ ] Attention: [ ] Fax: [ ] Re: NewMarket Corporation [Date] Ladies and Gentlemen: Reference is hereby made to the Credit Agreement dated as of September 22November 12, 2017 2010 (as amended, supplemented or otherwise modified from time to time, the “Credit Agreement”), among NewMarket Corporation (the “Company”), the Foreign Subsidiary Borrowers from time to time party thereto (collectively with the Company, the “Borrowers”), the Lenders from time to time party thereto and JPMorgan Chase Bank, N.A., as administrative agent (in such capacity, the “Administrative Agent”). The Company hereby gives you notice pursuant to Section 2.05 of the Credit Agreement that it requests a Swingline Loan under the Credit Agreement, and in that connection the Company specifies the following information with respect to such Swingline Loan requested hereby: