Repurchase of own shares(20)

Ahlstrom Corporation

STOCK EXCHANGE ANNOUNCEMENT
October 5, 2011

Repurchase of own shares
Date: October 5, 2011
Exchange transaction: Buy
Share class: AHL1V
Amount: 299
Average price /share: 11.7500EUR
Highest price /share: 11.7500 EUR
Lowest price /share: 11.7500 EUR
Total price: 3,513.25 EUR

The shares held by Ahlstrom Corporation on October 5, 2011
AHL1V 33,410

Ahlstrom Corporation

On behalf of Ahlstrom

Pasi Väisänen

EVLI BANK PLC