TietoEnator Corporation Stock Exchange announcement 12.9.2007 In the Helsinki Stock Exchange Trade date 12.9.2007 Bourse trade BUY Share TIE1V Amount 45.000 Shares Total cost 751.215,00 EUR Average price/share 16,6937 EUR Highest price/share 17,15 EUR Lowest price/share 16,38 EUR TietoEnator Corporation now holds a total of 1.756.650 TIE1V shares including the shares repurchased on 12.9.2007 On behalf of TietoEnator Corporation NORDEA BANK FINLAND PLC Petri Simberg Jarkko Järvinen