TransAlta Announces TSX Approval For Normal Course Issuer Bid To Repurchase Up To 14M Common Shares, Representing 4.7% Of Outstanding Shares, With All Repurchased Shares To Be Cancelled

TransAlta Corporation ("TransAlta" or the "Company") (TSX:TA) (NYSE:TAC) announced today that the Toronto Stock Exchange ("TSX") has accepted the notice filed by the Company to implement a normal course issuer bid ("NCIB") for a portion of its common shares ("Common Shares").

Pursuant to the NCIB, TransAlta may repurchase up to a maximum of 14,000,000 Common Shares, representing approximately 4.7% of the 296,449,829 Common Shares issued and outstanding as at May 20, 2025. Purchases under the NCIB may be made through open market transactions on the TSX and any alternative Canadian trading systems on which the Common Shares are traded, based on the prevailing market price. Any Common Shares purchased under the NCIB will be cancelled.