Stock exchange release

*FORTUM CORPORATION: - SHARES SUBSCRIBED

03 September 2003, 12:12 EEST

HEX HELSINKI SECURITIES EXCHANGE RELEASE 226/2003
SHARES 3 September 2003

FORTUM CORPORATION: - SHARES SUBSCRIBED WITH OPTION RIGHTS A total of 50 160 Fortum Corporation's shares have been subscribed with the Fortum Corporation's 1999 option rights. The shares will be traded on the Helsinki Exchanges as old shares as of 4 September 2003. Identifiers of Fortum Corporation's share as of 4 september 2003: Trading code: FUM1V ISIN code: FI0009007132 Number of shares: 845 897 775 HELSINKI EXCHANGES Pekka Peiponen