Fortum's Financial Statements and Operating and Financial Review 2025 published

FORTUM CORPORATION STOCK EXCHANGE RELASE 12 FEBRUARY 2026 AT 10:00 EET

Fortum's Financial Statements and Operating and Financial Review for 2025 have
been published. The Financial Statements are published in accordance with the
European Single Electronic Format (ESEF) reporting requirements. The ESEF
financial statements in Finnish are available in the zip file attached to this
release and at www.fortum.com/annualreport2025. The Operating and Financial
Review also includes the Sustainability Statement, which has been prepared in
accordance with the Corporate Sustainability Reporting Directive (CSRD).

Fortum Financials (including Financial Statements and Operating and Financial
Review), the Governance Statement, the Remuneration Report, CEO's Business
Review and the Tax Footprint for 2025 have also been published today.

The material is attached to this release and available at
www.fortum.com/annualreport2025.

Fortum Corporation

Ingela Ulfves

Vice President, Investor Relations and Financial Communications

Further information:

Ingela Ulfves, Vice President, Investor Relations and Financial Communications,
tel. +358 40 515 1531
Rauno Tiihonen, Director, Investor Relations, tel. +358 10 453 6150
Siri Markula, Director, Investor Relations and Financial Communications, tel.
+358 40 743 2177

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)

Attachments:

Fortum-Governance2025.pdf

Fortum-Remuneration2025.pdf

Fortum-Financials2025.pdf

Fortum-Tax-Footprint2025.pdf

635400IUIZZIUJSAMF76-2025-12-31-fi.zip

Fortum-CEO-Business-Review2025.pdf