TietoEnator Corporation Stock Exchange announcement 21.9.2007 In the Helsinki Stock Exchange Trade date 21.9.2007 Bourse trade BUY Share TIE1V Amount 45.000 Shares Total cost 732.924,12 EUR Average price/share 16,2872 EUR Highest price/share 16,42 EUR Lowest price/share 16,10 EUR TietoEnator Corporation now holds a total of 2.071.650 TIE1V shares including the shares repurchased on 21.9.2007 On behalf of TietoEnator Corporation NORDEA BANK FINLAND PLC Petri Simberg Jarkko Järvinen