Ahlstrom to start repurchases of own shares

Ahlstrom Corporation STOCK EXCHANGE RELEASE 15.9.2011 at 14.10

Ahlstrom Corporation, a global high performance materials company, announces that its Board of Directors has today decided to utilize the authorization given by the Annual General Meeting held on March 30, 2011 to repurchase Ahlstrom shares for the implementation of the company's share-based incentive plan.

The maximum number of shares to be acquired is 250,000 corresponding to about 0.54% of the total number of shares and votes. The repurchases will decrease the distributable capital and reserves. Ahlstrom currently holds a total of 19,005 own shares, corresponding to approximately 0.04% of the shares and votes.

The share repurchases will start on September 22, 2011 at the earliest, and end by the end of the next Annual General Meeting on April 3, 2012 at the latest.

The shares shall be acquired through public trading on the NASDAQ OMX Helsinki exchange at the market price prevailing at the time of repurchase. Evli Bank plc will act as stock broker in the repurchases.

Ahlstrom's Board of Directors has an authorization to acquire 4,000,000 of the company's own shares, which is valid until the end of the 2012 Annual General Meeting.

For more information, please contact:
Liisa Nyyssönen
Vice President, Communications
Tel. +358 10 888 4757

Seppo Parvi
Tel. +358 10 888 4768

Ahlstrom in brief
Ahlstrom is a high performance materials company, partnering with leading businesses around the world to help them stay ahead. Our products are used in a large variety of everyday applications, such as filters, wallcovers, wipes, flooring, labels and food packaging. We have a leading market position in the businesses in which we operate. Our 5,700 employees serve customers in 26 countries on six continents. In 2010, Ahlstrom's net sales amounted to EUR 1.9 billion. The company's share is quoted on the NASDAQ OMX Helsinki. More information available at www.ahlstrom.com.