CALGARY, Alberta (April 28, 2023 ) TransAlta Corporation (TSX: TA) (NYSE: TAC) ("TransAlta" or the "Company") held its Annual and Special Meeting of Shareholders (the Meeting) on April 28, 2023. The total number of common shares represented by shareholders at the Meeting and by proxy was 151,051,401, representing 56.49 per cent of the Company's outstanding common shares. The following resolutions were considered by shareholders: Election of Directors The thirteen director nominees proposed by management were elected. The votes by ballot were received as follows: Appointment of Auditors The appointment of Ernst & Young LLP to serve as the auditors for 2023 was approved. The votes by ballot were received as follows: Advisory Vote on Executive Compensation (also known as €œsay-on-pay) The advisory vote on the Company's approach to executive compensation or say-on-pay was approved.