FORTUM CORPORATION STOCK EXCHANGE RELEASE 3 APRIL 2020 AT 20:00 EEST Release category: Other information disclosed according to the rules of the exchange The Chairman of the Supervisory Board of Fortum’s subsidiary Uniper as well as four other Supervisory Board members have today informed that they have resigned from their duties with immediate effect. Fortum welcomes the decision and expects the change in the Supervisory Board’s composition to pave the way for strategic alignment and cooperation between the two companies. Fortum supports the intention of Uniper to immediately initiate the process for the appointment of the new members of the Supervisory Board. This allows Fortum as the majority shareholder with around 70% of the shares in Uniper to increase its presence in the Supervisory Board of Uniper, commensurate with its shareholding. Markus Rauramo, CFO of Fortum, will remain on the Supervisory Board of Uniper. In addition, Fortum has proposed further suitable candidates to Uniper as members to the Supervisory Board. Fortum expects to be represented on the Uniper Supervisory Board through four of the six shareholder representatives including the Chairman. The other two members would be independent ones. “The time has come to turn a new page in the relationship between Fortum and Uniper. The strategic alignment and cooperation can now start without further delay,” says Pekka Lundmark, CEO of Fortum. Fortum Corporation  Ingela Ulfves, VP, IR and Financial Communications  Further information:  Investors and analysts:  Ingela Ulfves, VP, IR and Financial Communications, tel. +358 40 5151 531  Rauno Tiihonen, IR Manager, tel. +358 10 453 6150 Måns Holmberg, Manager, IR and Financial Communications, tel. +358 44 518 1518  Media: Pauliina Vuosio, VP, Executive Communications, tel. +358 50 453 2383  Jakelu: Nasdaq Helsinki Main media www.fortum.com