Repurchase of own shares

Ahlstrom Corporation  
STOCK EXCHANGE ANNOUNCEMENT  
  
22 November 2010  
 
  
Date: 22 November 2010 
Exchange transaction: Buy 
  
Share class: AHL1V 
Amount: 2746 
Average price /share: 14.8228 EUR
Highest price /share: 14.8500 EUR
Lowest price /share: 14.7500 EUR
Total price: 40703.41 EUR
  
The shares held by Ahlstrom Corporation on 22 November 2010 
AHL1V 107746 
  
  
AHLSTROM CORPORATION  
  
  
On behalf of Ahlstrom Corporation  
  
    
Teemu Koivisto  
EVLI BANK PLC