Repurchase of own shares

Ahlstrom Corporation STOCK EXCHANGE RELEASE 7.12.2010 at 17.30 CET
Date: 07 December 2010      
Exchange transaction: Buy    
Share class:    AHL1V
Amount:           5500   
Average price /share:  14.7341           EUR
Highest price /share:   14.7700           EUR
Lowest price /share:   14.7200           EUR
Total price:      81037.55         EUR
The shares held by Ahlstrom Corporation on 07 December 2010    
AHL1V 140958           
AHLSTROM CORPORATION                       
On behalf of Ahlstrom Corporation                

Teemu Koivisto