MDA Space Ltd. ("MDA Space" or the "Company") (TSX:MDA) (NYSE:MDA), a trusted mission partner to the rapidly expanding global space industry, announced today that it has entered into an amended agreement with a syndicate of underwriters led by BMO Capital Markets and RBC Capital Markets, as joint lead bookrunners, and J.P. Morgan, Scotiabank and BofA Securities, as joint active bookrunners (collectively, the "Underwriters"), pursuant to which the Underwriters have agreed to increase the size of the previously announced bought deal offering of common shares. Pursuant to the amended terms, the Underwriters have agreed to purchase 23,000,000 common shares (the "Common Shares") of MDA Space at a price of US$35.60 per Common Share (the "Offering Price") for aggregate gross proceeds of approximately US$819 million. The size of the offering was increased from the previously announced 20,000,000 Common Shares.

MDA Space has granted the Underwriters an over-allotment option (the "Option") to purchase up to an additional 15% of Common Shares issued in connection with the Offering, to cover over-allotments, if any, at the Offering Price. The Option is exercisable in whole or in part at any time up to 30 days following the closing of the Offering.

MDA Space intends to use the net proceeds of the Offering to fund a portion of the purchase price, which is payable in cash, of its acquisition (the "Acquisition") of approximately a 70% interest in Collecte Localisation Satellites ("CLS") previously announced on July 8, 2026. The net proceeds may also be used to fund the repayment of all or a portion of CLS’ existing indebtedness (if the Company is unable to arrange debt financing to repay such indebtedness) and/or related financing fees and transaction expenses.