Repurchase of own shares(17)

Ahlstrom Corporation

STOCK EXCHANGE ANNOUNCEMENT
October 11, 2011

Repurchase of own shares
Date: October 11, 2011
Exchange transaction: Buy
Share class: AHL1V
Amount: 4400
Average price /share: 12.0159 EUR
Highest price /share: 12.0500 EUR
Lowest price /share: 12.0000 EUR
Total price: 52 869.96 EUR

The shares held by Ahlstrom Corporation on October 11, 2011
AHL1V 44 069

Ahlstrom Corporation

On behalf of Ahlstrom

Pasi Väisänen

EVLI BANK PLC