0000824142-25-000170 Sample Contracts

EXHIBIT A Amendments to Existing Loan Agreement [Attached]
Loan Agreement • May 30th, 2025 • Aaon, Inc. • Air-cond & warm air heatg equip & comm & indl refrig equip • Oklahoma
REVOLVING NOTE
Revolving Note • May 30th, 2025 • Aaon, Inc. • Air-cond & warm air heatg equip & comm & indl refrig equip

FOR VALUE RECEIVED, each of the undersigned, each a Borrower and collectively the Borrowers, hereby jointly and severally promises to pay to BANK OF AMERICA, N.A. (together with its successors and assigns, the “Lender”) at the office of BOKF, NA dba BANK OF OKLAHOMA, as the administrative agent for the Lenders (the “Administrative Agent”) at One Williams Center, 8th Floor, Tulsa, OK 74172, in immediately available funds, the amount of NINETY MILLION DOLLARS and NO/100THS ($90,000,000.00) or, if less, the aggregate unpaid amount of all Revolving Loans made by the Lender to the undersigned under the Amended and Restated Loan Agreement, dated as of November 24, 2021 (as it may be amended, restated, renewed, extended, supplemented or otherwise modified from time to time, the “Loan Agreement”), by and among Borrowers, the Lenders party thereto from time to time and the Administrative Agent, on the dates and in the amounts set forth in the Loan Agreement, and to pay interest from the date of

SECOND AMENDED AND RESTATED REVOLVING NOTE
Revolving Note • May 30th, 2025 • Aaon, Inc. • Air-cond & warm air heatg equip & comm & indl refrig equip

FOR VALUE RECEIVED, each of the undersigned, each a Borrower and collectively the Borrowers, hereby jointly and severally promises to pay to BOKF, NA dba BANK OF OKLAHOMA (together with its successors and assigns, the “Lender”) at the office of BOKF, NA dba BANK OF OKLAHOMA, as the administrative agent for the Lenders (the “Administrative Agent”) at One Williams Center, 8th Floor, Tulsa, OK 74172, in immediately available funds, the amount of ONE HUNDRED FORTY FIVE MILLION DOLLARS and NO/100THS ($145,000,000.00) or, if less, the aggregate unpaid amount of all Revolving Loans made by the Lender to the undersigned under the Amended and Restated Loan Agreement, dated as of November 24, 2021 (as it may be amended, restated, renewed, extended, supplemented or otherwise modified from time to time, the “Loan Agreement”), by and among Borrowers, the Lenders party thereto from time to time and the Administrative Agent, on the dates and in the amounts set forth in the Loan Agreement, and to pay

FIFTH AMENDMENT TO AMENDED AND RESTATED LOAN AGREEMENT
Loan Agreement • May 30th, 2025 • Aaon, Inc. • Air-cond & warm air heatg equip & comm & indl refrig equip • Oklahoma

THIS FIFTH AMENDMENT TO AMENDED AND RESTATED LOAN AGREEMENT (this “Amendment”) is made as of May 29, 2025 by and among AAON, INC., an Oklahoma corporation ("AAON"), AAON COIL PRODUCTS, INC., a Texas corporation ("ACP") and BASX, INC., an Oregon corporation (“BASX”; and, together with ACP and AAON, collectively, "Borrowers," and each individually, a "Borrower"), the other Loan Parties under the Existing Loan Agreement, all of the “Revolving Lenders” party to the Existing Loan Agreement (the “Existing Lenders”), Bank of America, N.A. and Associated Bank, N.A. (the “New Lenders”; together with the Existing Lenders, the “Lenders”) and BOKF, NA dba BANK OF OKLAHOMA, as the Administrative Agent, Swingline Lender and Issuing Bank, under that certain Amended and Restated Loan Agreement, dated as of November 24, 2021, by and among the Borrowers, the other Loan Parties party thereto, the Lenders party thereto and the Administrative Agent (as amended, restated, supplemented or otherwise modified