Repurchase of own shares(13)

Ahlstrom Corporation

STOCK EXCHANGE ANNOUNCEMENT
October 21, 2011

Repurchase of own shares
Date: October 21, 2011
Exchange transaction: Buy
Share class: AHL1V
Amount: 1500
Average price /share: 11.5839 EUR
Highest price /share: 11.6000 EUR
Lowest price /share: 11.5000 EUR
Total price: 17,375.85 EUR

The shares held by Ahlstrom Corporation on October 21, 2011
AHL1V 57,026

Ahlstrom Corporation

On behalf of Ahlstrom

Pasi Väisänen

EVLI BANK PLC