FORTUM CORPORATION STOCK EXCHANGE RELEASE 13 JUNE 2025 AT 17:30 EEST Release category: Other information disclosed according to the rules of the Exchange The following members have been appointed to Fortum Shareholders' Nomination Board: · Maija Strandberg, Director General, Prime Minister's Office, Ownership Steering Department (Chair), · Mikko Mursula, Chief Investment Officer, Deputy CEO, Ilmarinen Mutual Pension Insurance Company, and · Risto Murto, President and CEO, Varma Mutual Pension Insurance Company. In accordance with the charter of the Fortum Shareholders' Nomination Board, three members are appointed to Fortum Shareholders' Nomination Board each year. The company's three largest shareholders as of the first working day of June are each entitled to appoint one member. In accordance with the charter of the Shareholders' Nomination Board, the Chair of Fortum's Board of Directors Mikael Silvennoinen will serve as expert to the Nomination Board without right to vote. The Fortum Shareholders' Nomination Board prepares and presents to the Annual General Meeting the proposals on the remuneration, number and members of the Board of Directors. The Nomination Board will forward its proposals for the Annual General Meeting to the Board of Directors. Fortum Corporation Ingela Ulfves Vice President, Investor Relations & Financial Communications Additional information: Kati Levoranta, Executive Vice President, Legal, General Counsel, Fortum Corporation, tel. +358 40 198 2843 Distribution: Nasdaq Helsinki Key media www.fortum.com Fortum Fortum is a Nordic energy company. We generate and deliver reliable energy to our customers and the Nordic energy system while at the same time helping industries decarbonise their processes and grow. Our core operations comprise efficient and best-in-class low-carbon power generation, customer services, and heating and cooling. Fortum's power generation is already 99% from renewable or nuclear sources with one of the lowest specific CO2-emissions in Europe. We are guided by our ambitious SBTi-validated emission reduction targets on our way towards net-zero by 2040. For our ~4,500 employees, we commit to be a safe and inspiring workplace. Fortum's share is listed on Nasdaq Helsinki. fortum.com (https://www.fortum.com)