Stock exchange release

HSE: FORTUM CORPORATION: SHARES SUBSCRIBED WITH OPTION RIGHTS

09 June 2005, 11:55 EEST

EXCHANGE NOTICE 252/2005, 9 June 2005 SHARES

FORTUM CORPORATION: SHARES SUBSCRIBED WITH OPTION RIGHTS A total of 684 777 Fortum Corporation's shares have been subscribed with the Fortum Corporation's 1999 bond with warrant and a total of 96 000 shares have been subscribed with the Fortum Corporation’s 1999 option rights and 158 500 shares have been subscribed with the Fortum Corporation’s 2002A option rights. The shares will be traded on the Helsinki Stock Exchange as old shares as of 10 June 2005. Identifiers of Fortum Corporation's share: Trading code: FUM1V ISIN code: FI0009007132 Orderbook id: 24271 Number of shares: 872 793 475 HELSINKI STOCK EXCHANGE Janne Seppänen Vice President Surveillance Finland