Stock Exchange release April 3, 2007 11:32:12 AM CET

Metso to supply grinding equipment to Osisko Exploration in Canada

Metso Minerals will supply grinding equipment to Osisko Exploration Ltd. in Canada for its Malartic Gold project, located in northern Quebec. The delivery will be completed within the first quarter of 2009. The value of the order is approximately EUR 22 million. The order is included in Metso's first quarter order backlog.
 
The order comprises a gearless SAG mill of 11.6 m in diameter by 7 m in length and two ball mills of 7.3 m in diameter by 11.3 m in length each. The mills are capable of processing from approximately 28,000 tonnes to 40,000 tonnes of gold ore per day. Additionally, the order includes engineering, erection and commissioning services.
 
The Canadian Malartic gold project has developed into one of the most important new gold projects in North America. The project's potential gold resource has been estimated as approximately 6.5 million ounces. Osisko Exploration is listed on the Toronto Venture Exchange and the Deutsche Börse.
 
Metso is a global engineering and technology corporation with 2006 net sales of approximately EUR 5 billion. Its 25,500 employees in more than 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:
Jeffery A. Leonard, Senior Vice President, Comminution, Mining Business Line, Metso Minerals, tel. +1 717 849 7464
 
Further information for investors, please contact:
Olli Vaartimo, Executive Vice President and CFO, Metso Corporation, tel. +358 204 84 3010