Basware Corporation ANNOUNCEMENT 21.5.2012 SHARE REPURCHASE 21.5.2012 In the Helsinki Stock Exchange Trade date 21.5.2012 Bourse trade BUY Share BAS1V Amount 1.160 shares Total cost 23.680,00 EUR Average price/ share 20,4138 EUR Highest price/ share 21,00 EUR Lowest price/ share 20,15 EUR Basware Corporation now holds a total of 106.725 shares including the shares repurchased on 21.5.2012. On behalf of Basware Corporation NORDEA BANK FINLAND PLC Petri Simberg Julius Summanen [HUG#1613706]