Lockheed Martin Corp., Missiles and Fire Control, Dallas, Texas, is being awarded a $932,836,737 modification (P00026) to previously-awarded contract HQ0147-17-C-0032 to exercise an option for the production of Terminal High Altitude Area Defense (THAAD) interceptors and associated one-shot devices to support the U.S. government (USG) and the Kingdom of Saudi Arabia (KSA) Foreign Military Sales (FMS) case requirements. The THAAD interceptors and associated one-shot devices will be procured under fixed-price incentive (firm target) contract line items. The value of this contract is increased from $5,366,947,800 to $6,299,784,537. The work will be performed in Dallas, Texas; Sunnyvale, California; Huntsville, Alabama; Camden, Arkansas; and Troy, Alabama, with an expected completion date of April 1, 2026. Fiscal 2020 USG procurement funds in the amount of $327,498,097; and KSA FMS funds in the amount of $605,338,640 are being obligated at time of award. The Missile Defense Agency, Huntsville, Alabama, is the contracting activity.