Repurchase of own shares

Ahlstrom Corporation  
STOCK EXCHANGE ANNOUNCEMENT  
  
25 November 2010  
  
  
Date: 25 November 2010 
Exchange transaction: Buy 
  
Share class: AHL1V 
Amount: 4391 
Average price /share: 14.3377 EUR
Highest price /share: 14.5200 EUR
Lowest price /share: 14.2500 EUR
Total price: 62956.84 EUR
  
The shares held by Ahlstrom Corporation on 25 November 2010 
AHL1V 121000 
  
  
AHLSTROM CORPORATION  
  
  
On behalf of Ahlstrom Corporation  
  
  
  
Teemu Koivisto  
EVLI BANK PLC