Metso Corporation Company release on August 22, 2008 at 9:40 a.m. local time Metso's Board of Directors has decided to cancel the remaining 100,000 year 2003A stock options that are held by Metso's subsidiary Metso Capital Ltd. Following this and earlier cancelations and share subscriptions there are no options outstanding or available from any of Metso's option programs for subscription of shares in Metso Corporation. Metso is a global engineering and technology corporation with 2007 net sales of over EUR 6 billion. Its over 27,000 employees in approximately 50 countries serve customers in the pulp and paper industry, rock and minerals processing, the energy industry and selected other industries. www.metso.com Further information for the press, please contact: Aleksanteri Lebedeff, Senior Vice President, General Counsel, Metso Corporation, tel. +358 20 484 3240 Further information for investors, 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: OMX Nordic Exchange in Helsinki Media www.metso.com