Ahlstrom - Company Announcement

Ahlstrom to add new filter media nonwoven line in South Carolina, USA

Ahlstrom Corporation STOCK EXCHANGE RELEASE 11.5.2007

Ahlstrom, a leader in high-performance fiber based materials,
announced today that it will invest EUR 8 million in a new
needlepunch line for its North American filtration business,
targeting the growing dust filtration market.

The new line, using state of the art nonwoven technology, will be
located in the current Darlington, South Carolina, facility. The
targeted completion date is slated for early 2008.  The new line will
manufacture a full range of needlepunched fabrics, mainly for the
high-temperature dust filtration industry. The line will complement
the current capabilities in this market and improve our position as a
global leader of filtration materials."The demand for high temperature needled felts continues to grow in
North America as industries look to reduce atmospheric emissions and
ozone pollutants", commented Scott Murdock, Vice President Filtration
North America. "We plan to enhance Ahlstrom's position in this
segment as a high quality, service leader to support the market
growth, as well as provide a competitive platform closer to our
customers"."This new investment for dust filtration, in combination with the
announcement in February of a new line for air filtration, should
serve as a strong commitment to North American customers that
Ahlstrom intends to support growth in the filtration markets", added
Jukka Moisio, President and CEO of Ahlstrom Corporation.

Ahlstrom's Filtration business is a leading global manufacturer of
filtration materials used in air, liquid and transportation
applications with 13 production sites across four continents.

Jukka Moisio
Ahlstrom Corporation

For more information, please contact:

Jukka Moisio, President & CEO, Ahlstrom Corporation, tel. +358
(0)10 888 4700, jukka.moisio@ahlstrom.com
Scott Murdock, VP Filtration North America, +1 860 654 8362,
scott.murdock@ahlstrom.com

Distribution:
Helsinki Stock Exchange
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 5,700 employees serve customers via
sales offices and production facilities in more than 20 countries on
six continents. In 2006, Ahlstrom's net sales amounted to EUR 1.6
billion. Ahlstrom's share is listed on the Helsinki Stock Exchange.
The company website is www.ahlstrom.com.