An anonymous director reports

TRANSALTA TO HOST FOURTH QUARTER AND FULL YEAR 2025 RESULTS CONFERENCE CALL

TransAlta Corp. will release its fourth quarter and full-year 2025 results before markets open on Friday, Feb. 27, 2026. A conference call and webcast to discuss the results as well as the company's 2026 annual guidance will be held for investors, analysts, members of the media and other interested parties on the same day beginning at 9 a.m. Mountain Time (11 a.m. Eastern Time).

Fourth quarter and full-year 2025 conference call

To access the conference call by telephone, please register on-line ahead of time. Once registered, participants will have the option of: (1) dialling into the call from their phone (through a personalized PIN (personal identification number)); or (2) clicking the "Call Me" option to receive an automated call directly to their phones.

Related materials will be available on the investor centre section of TransAlta's website. If you are unable to participate in the call, the replay will be accessible on-line. A transcript of the broadcast will be posted on TransAlta's website once it becomes available.

About TransAlta Corp.

TransAlta owns, operates and develops a diverse fleet of electrical power generation assets in Canada, the United States and Australia with a focus on long-term shareholder value. TransAlta provides municipalities, medium and large industries, businesses, and utility customers with affordable, energy-efficient and reliable power. Today, TransAlta is one of Canada's largest independent producers of wind power and thermal generation and is Alberta's largest producer of hydroelectric power. For over 114 years, TransAlta has been a responsible operator and a proud member of the communities where the company operates and where the company's employees work and live. TransAlta aligns its corporate goals with the United Nations Sustainable Development Goals and the Future-Fit Business Benchmark, which also defines sustainable goals for businesses. The company's reporting on climate change management has been guided by the international financial reporting standards (IFRS) S2 Climate-related Disclosures Standard and the Task Force on Climate-related Financial Disclosures (TCFD) recommendations. TransAlta has achieved a 70-per-cent reduction in GHG (greenhouse gas) emissions, or 22.7 million tonnes CO2e (carbon dioxide equivalent) since 2015 and received an upgraded MSCI ESG rating of AA.