Repurchase of own shares(17)

Ahlstrom Corporation STOCK EXCHANGE RELEASE 9.11.2010 at 17.30 CET
Date:   09 November 2010    
Exchange transaction:            Buy     
Share class:    AHL1V
Amount:           3400   
Average price /share:  15.0110           EUR
Highest price /share:   15.0500           EUR
Lowest price /share:   14.8500           EUR
Total price:      51037.40         EUR
The shares held by Ahlstrom Corporation on 09 November 2010    
AHL1V 87000 
AHLSTROM CORPORATION                       
On behalf of Ahlstrom Corporation                
Teemu Koivisto