Repurchase of own shares(3)

Ahlstrom Corporation STOCK EXCHANGE RELEASE 9.12.2010 at 17.30 CET
               
Date: 09 December 2010      
Exchange transaction: Buy    
                       
Share class:    AHL1V
Amount:           2500   
Average price /share:  14.7426           EUR
Highest price /share:   14.8000           EUR
Lowest price /share:   14.7200           EUR
Total price:      36856.50         EUR
                       
The shares held by Ahlstrom Corporation on 09 December 2010    
AHL1V 148458           
                       
                       
AHLSTROM CORPORATION                       
                       
                       
On behalf of Ahlstrom Corporation                
                       
                       
                       
Teemu Koivisto                      
                       
EVLI BANK PLC