Ahlstrom - Company Announcement

Ahlstrom's capital markets day to be held on November 29, 2011

Ahlstrom Corporation STOCK EXCHANGE RELEASE 5.9.2011 at 14.45

Ahlstrom Corporation, a global high performance materials company, will arrange
a capital markets day on November 29, 2011, starting at 9:00 a.m. in Helsinki.

The event will provide an update on Ahlstrom's strategy execution. 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 & IR
Tel. +358 10 888 4731

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 is available atwww.ahlstrom.com.


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