Stock exchange release

HSE: FORTUM CORPORATION: SHARES SUBSCRIBED WITH OPTION RIGHTS

08 December 2006, 10:55 EET

EXCHANGE NOTICE 528/2006, 8 DECEMBER 2006 SHARES

FORTUM CORPORATION: SHARES SUBSCRIBED WITH OPTION RIGHTS A total of 5 779 641 shares have been subscribed with the Fortum Corporation’s 2001A, 2001B, 2002A and 2002B option rights. The shares will be traded on the Helsinki Stock Exchange as old shares as of 11 December 2006. Identifiers of Fortum Corporation's share: Trading code: FUM1V ISIN code: FI0009007132 Orderbook id: 24271 Amount of shares: 889 053 646 HELSINKI STOCK EXCHANGE Janne Seppänen Head of Surveillance