Prospectus related to the demerger of Ahlstrom's Label and Processing business in Brazil has been published

Ahlstrom Corporation STOCK EXCHANGE RELEASE June 28, 2013 at 14.30
Not to be distributed in or into Australia, Canada, the Hong Kong special administrative region of the People's Republic of China, Japan, New Zealand, South Africa or the United States.
The Finnish Financial Supervisory Authority has today approved the Finnish language version of the summary and securities note related to the share issue of Munksjö Oyj in connection with the demerger of Ahlstrom Corporation's Label and Processing business in Brazil (Coated Specialties). The summary and securities note together with the registration document published on November 16, 2012 forms Munksjö Oyj's prospectus for the share issue.

The demerger is the second part of the process through which Ahlstrom's Label and Processing business and Munksjö AB will be combined. According to the demerger plan, all assets and liabilities that belong to Coated Specialties will be transferred to Munksjö Oyj through a partial demerger of Ahlstrom Corporation. Munksjö Oyj's and Ahlstrom Corporation's Board of Directors signed a new demerger plan on May 13, 2013 related to Coated Specialties and cancelled the previous demerger plan. The previous demerger plan was cancelled as not all the relevant regulatory approvals were received before the expiration of the decision made by Ahlstrom's Extraordinary General Meeting on November 27, 2012.

Ahlstrom Corporation has summoned an Extraordinary General Meeting on July 4, 2013 to approve the demerger of Coated Specialties and the completion of the demerger is expected to take place by the end of 2013.

The prospectus contains the following previously unpublished information:

As trading in Munksjö's shares has commenced on NASDAQ OMX Helsinki, the preliminary fair value of the consideration transferred for Coated Specialties has been updated in the pro forma financials to correspond to the quoted market price of Munksjö's share as at June 11, 2013 (EUR 6.10). Based on this share price, the preliminary fair value of the consideration transferred amounts to EUR 75.0 million whereas the preliminary fair value previously disclosed amounted to EUR 112.4 million. Munksjö Oyj has recorded the difference of EUR 37.4 million as a decrease in goodwill and equity. The final consideration transferred for Coated Specialties will be based on the quoted market price of the Munksjö share at the date when the ownership over Coated Specialties to Munksjö, and thus the final fair value for the consideration transferred and the related goodwill will remain subject to change.

The Finnish language version of the prospectus together with an unofficial English language translation will be available on Ahlstrom's website at www.ahlstrom.com as of July 1, 2013 at the latest.

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

Ahlstrom in brief
Ahlstrom is a high performance fiber-based 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, diagnostics, wallcoverings, flooring and food packaging. We have a leading market position in the businesses in which we operate. In 2012, Ahlstrom's net sales from the continuing operations (excluding Label and Processing business) amounted to EUR 1 billion. Our 3,800 employees serve customers in 28 countries on six continents. Ahlstrom's share is quoted on the NASDAQ OMX Helsinki. More information available at www.ahlstrom.com.

DisclaimerThis document may not be distributed in or into Australia, Canada, the Hong Kong special administrative region of the People's Republic of China, Japan, New Zealand, South Africa or the United States. The information contained herein shall not constitute an offer to sell or the solicitation of an offer to buy the securities referred to herein in any jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration, exemption from registration or qualification under the securities laws of any such jurisdiction.
This document is not an offer for sale of securities in the United States. Securities may not be offered or sold in the United States absent registration or an exemption from registration under the U.S. Securities Act of 1933, as amended. Ahlstrom Corporation, Munksjö AB and Munksjö Oyj have not registered, and do not intend to register, any offering of the Munksjö shares in the United States. There will be no public offering of the Munksjö shares in the United States.
This document is only being distributed to and is only directed at (i) persons who are outside the United Kingdom or (ii) to investment professionals falling within Article 19(5) of the Financial Services and Markets Act 2000 (Financial Promotion) Order 2005 (the "Order") or (iii) high net worth companies, and other persons to whom it may lawfully be communicated, falling within Article 49(2)(a) to (d) of the Order or (iv) persons who are members or creditors of the company to which this communication relates, falling within article 43(2) of the Order (all such persons in (i), (ii) (iii) and (iv) above together being referred to as "relevant persons"). Any investment activity to which this document relates will be only available to and will be engaged in only with, relevant persons. Any person who is not a relevant person should not act or rely on this document or any of its contents.

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