Repurchase of own shares

Ahlstrom Corporation STOCK EXCHANGE RELEASE 15.11.2010 at 17.30 CET
Date:                                15 November 2010
Exchange transaction:     Buy
Share class:                    AHL1V       
Amount:                           5403          
Average price /share:      14.5519      EUR
Highest price /share:       14.5800      EUR
Lowest price /share:        14.5000      EUR
Total price:                       78623.92    EUR
The shares held by Ahlstrom Corporation on 15 November 2010    
AHL1V                              102000      
AHLSTROM CORPORATION                       
On behalf of Ahlstrom Corporation                
Teemu Koivisto