Repurchase of own shares

Ahlstrom Corporation  
STOCK EXCHANGE ANNOUNCEMENT  
  
03 December 2010  
    
  
Date: 03 December 2010 
Exchange transaction: Buy 
  
Share class: AHL1V 
Amount: 6000 
Average price /share: 14.6733 EUR
Highest price /share: 14.7700 EUR
Lowest price /share: 14.6000 EUR
Total price: 88039.80 EUR
  
The shares held by Ahlstrom Corporation on 03 December 2010 
AHL1V 135458 
  
  
AHLSTROM CORPORATION  
  
  
On behalf of Ahlstrom Corporation  
  
   
Teemu Koivisto  
EVLI BANK PLC