Announcement pursuant to the Securties Market Act (chapter 2, section 10) regarding a change in shareholding

Metso Corporation's stock exchange release on December 18, 2012 at 4.45 p.m. local time

Metso Corporation has received an announcement pursuant to the Securities Market
Act regarding a change in shareholding within the Cevian funds. Cevian Capital
II Master Fund L.P. has transferred its aggregate holding of 12,508,060 Metso
shares to Cevian Capital Partners Ltd, which is a wholly-owned subsidiary of
Cevian Capital II Master Fund L.P.

As of December 18, Cevian Capital Partners Ltd. holds a total of 12,508,060
shares which corresponds to 8.32% of Metso shares. The transfer does not have
any impact on the total amount of shares held by Cevian. The registered number
of shares of Metso Corporation is 150,348,256, which entitle to a total of
150,348,256 votes.

Metso is a global supplier of technology and services to customers in the
process industries, including mining, construction, pulp and paper, power, and
oil and gas. Our 30,000 professionals based in over 50 countries deliver
sustainability and profitability to customers worldwide. Expect results.,

Further information:

Juha Rouhiainen, VP, Investor Relations, Metso Corporation, tel.
+358 20 484 3253

Metso Corporation

Harri Nikunen


Juha Rouhiainen

VP, Investor Relations


NASDAQ OMX Helsinki Ltd