As previously disclosed, on September 29, 2021, Thermon Group Holdings, Inc., as a credit party and a guarantor, Thermon Holding Corp. and Thermon Canada Inc., as borrowers, entered into an Amended and Restated Credit Agreement (as amended, the ?Credit Agreement?) with several banks and other financial institutions or entities from time to time (the ?Lenders?) and JPMorgan Chase Bank, N.A., as Administrative Agent (the ?Agent?). The Credit Agreement is an amendment and restatement of that certain Credit Agreement, dated October 30, 2017, by and among the Borrowers, the lenders from time to time party thereto and the Agent.

On December 29, 2023, the Company and the Borrowers entered into an Amendment No. 3 to Credit Agreement, Amendment No. 2 to the Guarantee and Collateral Agreement and Amendment No.

2 to the Canadian Guarantee and Collateral Agreement (collectively, the ?Amendment?) with the Lenders and the Agent. The Amendment provides for, among other things, changes to the Credit Agreement to (a) provide the US Borrower with a new incremental term loan facility as further described below (the ?2023 Incremental U.S. Term Loan Facility?), (b) reset the accordion feature in the Credit Agreement for the incurrence of additional incremental term loans and incremental revolving commitments to an amount not to exceed USD 100.0 million, (c) permit the Canadian Borrower to borrow under the existing Revolver Facility (as defined in the Credit Agreement) in Canadian dollars, (d) permit Letters of Credit (as defined in the Credit Agreement) to be issued for the account of the Canadian Borrower, (e) replace the Canadian Dollar Offered Rate with the Canadian Overnight Repo Rate Average as the benchmark rate applicable to Term Benchmark Loans (each as defined in the Credit Agreement) denominated in Canadian dollars and implementing corresponding technical changes, and (f) expand the definitions of ?Specified Cash Management Agreement? and ?Specified Swap Agreement?

(each as defined in the Credit Agreement) to provide for the inclusion of obligations arising under Swap Agreements (as defined in the Credit Agreement) and cash management agreements between any subsidiary of the US Borrower to be included in the Obligations (as defined in the Credit Agreement) that are secured and guaranteed under the Loan Documents (as defined in the Credit Agreement). Certain principal terms of the 2023 Incremental U.S. Term Loan Facility are as follows: A USD 100.0 million secured term loan A made available to the US Borrower on substantially the same terms as the existing U.S. Term A Loans (as defined in the Credit Agreement), but with a pricing increase across the grid of 0.375% above the pricing applicable to the existing U.S. Term A Loans. Loans made to the US Borrower under the 2023 Incremental U.S. Term Loan Facility (the ?2023 Incremental U.S. Term Loans?) shall rank pari passu in right of payment and security with the existing U.S. Term A Loans and shall be secured and guaranteed under the Loan Documents on a pro rata basis with the existing U.S. Term A Loans.

The 2023 Incremental U.S. Term Loans shall mature on September29, 2026 (same as the existing U.S. Term A Loans) and shall amortize with installment payments due on the first day of each fiscal quarter (commencing with the fiscal quarter commencing on April1, 2024) with the same percentage of principal being due on each payment date as the percentage of principal of the existing U.S. Term A Loans due on such date. Proceeds of the 2023 Incremental U.S. Term Loans were used at the closing of the transactions contemplated by the Amendment to (a)finance the Vapor Acquisition (as defined in the Amendment), (b)refinance certain indebtedness of the Target (as defined in the Amendment), and (c)pay fees and expenses incurred by the US Borrower in connection with the foregoing. The Amendment also provides for certain conforming changes relating to the expanded definitions of Specified Cash Management Agreement and Specified Swap Agreement in the Credit Agreement to (x) the Guarantee and Collateral Agreement, dated as of October 30, 2017, by and among the Company, the US Borrower and the Agent (the ?US Security Agreement?) and (y) the Canadian Guarantee and Collateral Agreement, dated as of October 30, 2017, by and between the Canadian Borrower and the Agent (the ?Canadian Security Agreement?, and together with the US Security Agreement, the ?Security Agreements?), and also provides for changes in each Security Agreement to the waterfall for application of proceeds of collateral set forth therein so that Obligations (as defined in such Security Agreement) arising under Specified Cash Management Agreements and Specified Swap Agreements (other than indemnitees, fees and similar obligations and liabilities) are paid pro rata with principal Obligations arising under Loans, Reimbursement Obligations and the cash collateralization of Letters of Credit (each as defined in such Security Agreement).