UBS AG's holdings in Metso increased to 5.32 percent

Metso Corporation's company release on March 26, 2009 at 2.30 p.m.

Metso Corporation has been informed about a change in the holding of
the mutual funds managed by UBS AG of the paid up share capital of
Metso Corporation.

On March 24, 2009 UBS AG's (CH- group holding in
shares of Metso Corporation exceeded the 5% threshold. The holding
amounted to 7,541,753 shares, which corresponds to 5.32 percent of
the paid up share capital and votes in Metso Corporation.

According to UBS AG's announcement, this position is held at the
following UBS entities: UBS AG, UBS Fund Management AG (Switzerland),
UBS Global Asset Management Ltd. (UK), UBS Global Asset Management
Life Ltd. (UK), UBS Global Asset Management SA (France), UBS Global
Asset Management GmbH (Germany), UBS Financial Services Inc. (USA),
UBS Global Asset Management  Inc. (Americas) and UBS O'Connor LLC

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 over 29,000 employees in more than
50 countries.

For further information, please contact:
Johanna Sintonen, Vice President, Investor Relations, Metso
Corporation, tel. +358 20 484 3253.

Metso Corporation

Olli Vaartimo
Executive Vice President and CFO

Kati Renvall
Vice President, Corporate Communications

NASDAQ OMX Helsinki Ltd

About Us

Metso is a world-leading industrial company offering equipment and services for the sustainable processing and flow of natural resources in the mining, aggregates, recycling and process industries. With our unique knowledge and innovative solutions, we help our customers improve their operational efficiency, reduce risks and increase profitability. Metso employs over 14,000 people in more than 50 countries.