Nov 01, 2007. /Lesprom Network/. Moody's Investors service has upgraded the long-term rating of Metso Corporation to Baa2 from Baa3. The rating outlook is considered stable. Metso is a global engineering and technology corporation with 2006 net sales of approximately Euro 5 billion. Its more than 26 000 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.