Ahlstrom's Capital Markets Day to be held on December 4, 2012

Ahlstrom Corporation STOCK EXCHANGE RELEASE September 20, 2012 at 13.00

Ahlstrom, a global high performance materials company, will arrange a Capital Markets Day on December 4, 2012, starting at 9:00 a.m. in Helsinki.

The event will provide an update on Ahlstrom's strategic direction following the announcement to combine its Label and Processing business area with Munksjö AB. Information on registration and invitations coupled with a detailed agenda will be distributed closer to the date.

Capital Markets Day materials will be available on http://www.ahlstrom.com/investor at the beginning of the day.

For more information, please contact:

Juho Erkheikki
Manager, Financial Communications & Investor Relations
Tel. +358 10 888 4731

Liisa Nyyssönen
Vice President, Communications
Tel. +358 10 888 4757

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, medical gowns and drapes, wallcoverings, flooring, labels and food packaging. We have a leading market position in the businesses in which we operate. Our 5,200 employees serve customers in 28 countries on six continents. In 2011, Ahlstrom's net sales amounted to EUR 1.6 billion. The company's share is quoted on the NASDAQ OMX Helsinki. More information is available at www.ahlstrom.com.