TietoEnator Corporation Stock Exchange announcement 18.9.2007 In the Helsinki Stock Exchange Trade date 18.9.2007 Bourse trade BUY Share TIE1V Amount 45.000 Shares Total cost 702.910,27 EUR Average price/share 15,6202 EUR Highest price/share 15,71 EUR Lowest price/share 15,45 EUR TietoEnator Corporation now holds a total of 1.936.650 TIE1V shares including the shares repurchased on 18.9.2007 On behalf of TietoEnator Corporation NORDEA BANK FINLAND PLC Petri Simberg Jarkko Järvinen