Moody´s raised Metso´s rating outlook to stable

Metso Corporation's stock exchange release on September 20, 2010 at 7:30 a.m. local time

Moody´s Investors Service has affirmed Metso´s Baa2 long- term credit rating and
raised the outlook from negative to stable.

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 27,000 employees in more than 50 countries.

Further information for the press, please contact:
Pekka Hölttä, Senior Vice President, Corporate Treasurer, Metso Corporation,
tel. +358 20 484 3195

Further information for investors, please contact:
Johanna Henttonen, Vice President, Investor Relations, Metso Corporation, tel.
+358 20 484 3253

Metso Corporation

Olli Vaartimo
Executive Vice President and CFO

Johanna Henttonen
Vice President, Investor Relations

NASDAQ OMX Helsinki Ltd