Repurchase of own shares

 Ahlstrom Corporation    
STOCK EXCHANGE ANNOUNCEMENT    
     
13 December 2010     
      
           
Date: 13 December 2010  
Exchange transaction: Buy  
     
Share class: AHL1V  
Amount: 1092  
Average price /share: 14.6500 EUR
Highest price /share: 14.6500 EUR
Lowest price /share: 14.6500 EUR
Total price: 15997.80 EUR
     
The shares held by Ahlstrom Corporation on 13 December 2010  
AHL1V 150000  
     
     
AHLSTROM CORPORATION    
     
     
On behalf of Ahlstrom Corporation     
      
     
Teemu Koivisto     
EVLI BANK PLC