VAISALA CORPORATION STOCK EXCHANGE ANNOUNCEMENT 6.7.2015 SHARE REPURCHASE 6.7.2015 In the Helsinki Stock Exchange Trade date 6.7.2015 Bourse trade BUY Share VAIAS Amount 1 330 shares Total cost 30 570,45 EUR Average price/ share 22,9853 EUR Highest price/ share 23,00 EUR Lowest price/ share 22,85 EUR Vaisala Corporation now holds a total of 73 779 shares including the shares repurchased on 6.7.2015. On behalf of Vaisala Corporation NORDEA BANK FINLAND PLC Janne Sarvikivi Julius Summanen [HUG#1934805]