Stock exchange release

HSE: 2002 B OPTION RIGHTS OF FORTUM CORPORATION OYJ LISTED ON OCTOBER 2,2006

28 September 2006, 15:00 EEST

EXCHANGE NOTICE 418/2006, 28 SEPTEMBER 2006 OPTION RIGHTS

2002 B OPTION RIGHTS OF FORTUM CORPORATION OYJ LISTED ON OCTOBER 2,2006 Trading in the 2002 B option rights of Fortum Corporation will start on the Helsinki Stock Exchange on Monday, October 2, 2006. Identifiers of Fortum Corporation 2002 B option right: Trading code: FUM1VEW202 ISIN-code: FI0009613988 Orderbook id: 36539 Round lot: 1 Listing date: October 2, 2006 Subscription ratio: 1 (FUM1VEW202): 1 (FUM1V) Subscription price: 3,40 EUR / share Subscription period starts: October 1, 2006 Subscription period will end: May 1,2009 Number of option rights: 10 024 000 HELSINKI STOCK EXCHANGE Janne Seppänen Head of Surveillance