On December 30, 2022, KBR, Inc. (the Company) entered into Amendment No. 7 (the Amendment) to its existing Credit Agreement, dated as of April 25, 2018 (as amended by Amendment No. 1, dated as of November 12, 2018, Amendment No.

2, dated as of February 7, 2020, Amendment No. 3, dated as of July 2, 2020, Amendment No. 4, dated as of September 14, 2020, Amendment No.

5, dated as of November 18, 2021 and Amendment No. 6, dated as of May 17, 2022, the “Existing Credit Agreement”, and as further amended by the Amendment, the Credit Agreement), with Bank of America, N.A., as administrative agent, swing line lender and a letter of credit issuer, the lenders party thereto and each of the subsidiaries of the Company party thereto. The Amendment replaces all of the outstanding Term A-1 Facility AUD Loans (as defined in the Existing Credit Agreement) with new term loans in an aggregate principal amount of $99,266,146.01 under a new Term A-1 Facility that after giving effect to the Amendment (i) redenominates the loans under the Term A-1 Facility from Australian Dollars into U.S. Dollars and (ii) establishes USD Term SOFR as the benchmark for such loans with interest on the outstanding principal amount thereof at a rate per annum equal to the 2022 Refinancing Term SOFR (as defined in the Credit Agreement) plus the Applicable Margin (as defined in the Credit Agreement), depending on Consolidated Net Leverage Ratio (as defined in the Credit Agreement).

After giving effect to the Amendment, the material terms and conditions in the Credit Agreement remain substantially unchanged and in full force and effect, including with respect to maturity of November 18, 2026, representations and warranties, affirmative and negative covenants and drawn and undrawn pricing grid.