TietoEnator Corporation Stock Exchange announcement 17.9.2007 In the Helsinki Stock Exchange Trade date 17.9.2007 Bourse trade BUY Share TIE1V Amount 45.000 Shares Total cost 705.578,90 EUR Average price/share 15,6795 EUR Highest price/share 15,90 EUR Lowest price/share 15,55 EUR TietoEnator Corporation now holds a total of 1.891.650 TIE1V shares including the shares repurchased on 17.9.2007 On behalf of TietoEnator Corporation NORDEA BANK FINLAND PLC Petri Simberg Jarkko Järvinen