Metso Oyj - Major shareholder announcements

Shareholders whose aggregated ownership in Tamfelt Corp. is more than 66.67 per cent have either accepted or undertaken to accept Metso's exchange offer

Metso Corporation's company release on December 4, 2009 at 4:20 p.m.

Metso Corporation's exchange offer for Tamfelt Corp.'s shares and
stock options commenced on November 23, 2009. As of today,
shareholders of Tamfelt, whose aggregated ownership in Tamfelt is
68.01 per cent, have either accepted or undertaken to accept Metso's
exchange offer. Therefore, the condition precedent as to 66.67 per
cent acceptance rate for the exchange offer has been satisfied
assuming that no acceptances will be withdrawn prior to the
expiration of the offer period.

The offer period for the exchange offer preliminarily expires on
December 18, 2009 at 4:00 p.m (Finnish time).

Metso's target is 100 per cent ownership in Tamfelt. Assuming that
Metso receives, as a result of the exchange offer, more than 90 per
cent of the shares in Tamfelt, Metso will initiate without delay
necessary measures for obtaining the remainder of the shares in a
compulsory redemption proceeding under the Finnish Companies Act.

Metso is a global supplier of sustainable technology and services for
mining, construction, power generation, automation, recycling and the
pulp and paper industries. We have about 26,500 employees in more
than 50 countries. www.metso.com

For further information, please contact:
Johanna Henttonen, Vice President, Investor Relations, Metso
Corporation, tel. +358 40 530 0778

This release may not be released or otherwise distributed, in whole
or in part, in or into Australia, Canada, Japan, New Zealand, South
Africa or the United States. This release is not a tender offer
document and as such does not constitute an offer or invitation to
make a sales offer. Investors shall accept the Share Exchange Offer
for the shares and the offer for the Stock Options only on the basis
of the information provided in a share exchange offer document.
Offers will not be made directly or indirectly in any jurisdiction
where either an offer or participation therein is prohibited by
applicable law or where any share exchange offer document or
registration or other requirements would apply in addition to those
undertaken in Finland.

The share exchange offer document and related acceptance forms will
not and may not be distributed, forwarded or transmitted into or from
any jurisdiction where prohibited by applicable law. In particular,
the Share Exchange Offer or the offer for the Stock Options is not
being made, directly or indirectly, in or into, or by use of the
postal service of, or by any means or instrumentality (including,
without limitation, facsimile transmission, telex, telephone or the
Internet) of interstate or foreign commerce of, or any facilities of
a national securities exchange of, Australia, Canada, Japan, New
Zealand, South Africa or the United States. The Share Exchange Offer
or offer for the Stock Options cannot be accepted by any such use,
means or instrumentality or from within Australia, Canada, Japan, New
Zealand, South Africa or the United States.



Metso Corporation

Olli Vaartimo
Executive Vice President and CFO

Kati Renvall
Vice President, Group Communications

Distribution:
NASDAQ OMX Helsinki Ltd
Media
www.metso.com