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-270.3.004.646-4/) 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 (USA). 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. www.metso.com 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 Distribution: NASDAQ OMX Helsinki Ltd Media www.metso.com