Basware Corporation ANNOUNCEMENT 15.5.2012 SHARE REPURCHASE 15.5.2012 In the Helsinki Stock Exchange Trade date 15.5.2012 Bourse trade BUY Share BAS1V Amount 800 shares Total cost 16.488,00 EUR Average price/ share 20,6100 EUR Highest price/ share 20,61 EUR Lowest price/ share 20,61 EUR Basware Corporation now holds a total of 100.690 shares including the shares repurchased on 15.5.2012. On behalf of Basware Corporation NORDEA BANK FINLAND PLC Petri Simberg Julius Summanen [HUG#1612537]