TETRA Technologies, Inc.

Item 1.01. Entry into a Material Definitive Agreement. First Amendment to Term Loan Credit Agreement On October 2, 2026, TETRA Technologies, Inc. (the “Company”) entered into the First Amendment to Credit Agreement (the “First Amendment”), by and among the Company, as borrower, the other loan parties party thereto, the lenders party thereto (the “Lenders”) and Silver Point Finance, LLC, as administrative agent (in such capacity, the “Administrative Agent”), which amends the Credit Agreement, dated as of January 12, 2024 (the “Term Loan Credit Agreement”) by and among the Company, the other loan parties party thereto, the Lenders and the Administrative Agent. The First Amendment amends the Term Loan Credit Agreement to, among other things, (i) reduce the interest rate applicable to the loans thereunder from SOFR + 5.75% per annum to SOFR + 5.00% per annum, (ii) extend the maturity date of the Term Loan Credit Agreement from January 12, 2030 to December 31, 2030, (iii) eliminate amortization payments under the Term Loan Credit Agreement until June 30, 2028 (at which point quarterly amortization payments commence in an amount equal to 0.625% of the original principal balance of the loan, rising to 1.25% per quarter, commencing June 30, 2029), (iv) modify certain covenant baskets set forth therein, (v) require TETRA Bromine Project LLC to become a guarantor under the Term Loan Credit Agreement and (vi) make certain other modifications to the Term Loan Credit Agreement as more fully set forth in the First Amendment. The First Amendment contains other customary terms and conditions. The foregoing description does not purport to be complete and is qualified in its entirety by reference to the First Amendment, a copy of which is attached hereto as Exhibit 10.1 and is incorporated by reference herein.