Ahlstrom's first quarter financial results 2008 to be published on April 25, 2008

Ahlstrom Corporation STOCK EXCHANGE ANNOUNCEMENT 16.4.2008

Ahlstrom Corporation will publish its first quarter financial results
2008 on Friday, April 25, 2008 approximately at 8.30 a.m. Finnish
time.

A news conference for media and analysts will be held on Friday,
April 25, 2008 at 10.00 Finnish time at the Helsinki Bourse Club,
address Fabianinkatu 14 A. The conference will be held in Finnish.

A conference call for analysts and investors will be held in English
at 13.00 Finnish time. To participate in the teleconference, please
dial +44 (0) 20 7162 0025 a few minutes before the call. Use the
password: Ahlstrom. A replay number is available until May 2, 2008.
The number for the replay is + 44 (0) 20 7031 4064, access code:
792682.

The presentation material will be available at www.ahlstrom.com >
Investors > IR presentations on April 25, 2008 after the interim
report has been published.

Ahlstrom Corporation

Niina Suhonen
Vice President, Corporate Communications

Distribution:
OMX Nordic Exchange Helsinki
Main media
www.ahlstrom.com

Ahlstrom in brief
Ahlstrom is a global leader in the development, manufacture and
marketing of high performance fiber-based materials. Nonwovens and
specialty papers, made by Ahlstrom, are used in a large variety of
everyday products, such as filters, wipes, flooring, labels, and
tapes. Based upon its unique fiber expertise and innovative approach,
the company has a strong market position in several business areas in
which it operates. Ahlstrom's 6,500 employees serve customers via
sales offices and production facilities in more than 20 countries on
six continents. In 2007, Ahlstrom's net sales amounted to EUR 1.8
billion. Ahlstrom's share is listed on the OMX Nordic Exchange
Helsinki. The company website is www.ahlstrom.com.