Repurchase of own shares

Ahlstrom Corporation

STOCK EXCHANGE ANNOUNCEMENT
October 18, 2011

Repurchase of own shares
Date: October 18, 2011
Exchange transaction: Buy
Share class: AHL1V
Amount: 3436
Average price /share: 11.3981 EUR
Highest price /share: 11.5900 EUR
Lowest price /share: 11.2500 EUR
Total price: 39,163.87 EUR

The shares held by Ahlstrom Corporation on October 18, 2011
AHL1V 47,505

Ahlstrom Corporation

On behalf of Ahlstrom

Pasi Väisänen

EVLI BANK PLC