Additional capacity for Fortum from the power increase of the Oskarshamn nuclear power plant

Fortum Corporation STOCK EXCHANGE RELEASE 20 January 2006 1(1)

Additional capacity for Fortum from the power increase of the Oskarshamn nuclear
power plant

Fortum's affiliate OKG is going to increase the power of the 3rd unit of the
Oskarshamn nuclear power plant from the current 1200 megawatts to 1450
megawatts. OKG will implement and fund the power increase and renovation investments
through its own balance sheet. The investment will be mainly realised in 2008.

Fortum's share of ownership in the Oskarshamn nuclear power plant entitles the
company to a share of over 43 percent of the production of the power plant,
which Fortum buys at cost price. Fortum's share of the power increase of the power
plant's 3rd unit is slightly over 100 megawatts.

"The investment is important to Fortum, because it increases our carbon dioxide-
free production capacity that we can offer to the Nordic electricity market,"
says Senior Vice President Tapio Kuula of Fortum. More than 80 percent of
Fortum's electricity production capacity is carbon dioxide-free.

Fortum Corporation
Carola Teir-Lehtinen
Senior Vice President, Corporate Communications

For further information, please contact Tapio Kuula, Senior Vice President, tel.
+358 10 45 24112

Distribution:
Helsinki Stock Exchange
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