News Release TransAlta Reports Third Quarter 2025 Results CALGARY, Alberta (November 6, 2025) TransAlta Corporation (TransAlta or the Company) (TSX: TA) (NYSE: TAC) today reported its financial results for the third quarter ended Sept. 30, 2025. • Achieved strong operational availability of 92.7 per cent in 2025, compared to 94.5 per cent in 2024 • Adjusted EBITDA of $238 million, compared to$315 million for the same period in 2024 (1) • Free Cash Flow (FCF) of $105 million, or$0.35 per share, compared to ...