Repurchase of own shares(15)

Ahlstrom Corporation STOCK EXCHANGE RELEASE 12.11.2010 at 17.30 CET                                   

Date:                                12 November 2010

Exchange transaction:     Buy


Share class:                    AHL1V       

Amount:                           3597          

Average price /share:      14.4751      EUR

Highest price /share:       14.5100      EUR

Lowest price /share:        14.4400      EUR

Total price:                       52066.93    EUR


The shares held by Ahlstrom Corporation on 12 November 2010    

AHL1V                              96597        


AHLSTROM CORPORATION                       


On behalf of Ahlstrom Corporation                


Teemu Koivisto