EXHIBIT 13.1

Certification pursuant to 18 U.S.C. Section 1350,
as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

In connection with the Annual Report on Form 20-F of Metso Corporation (the “Company”) for the period ended December 31, 2005, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Jorma Eloranta, President and Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. §1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

      1) the Report fully complies with the requirements of Section 13(a) or 15(d) of the Exchange Act of 1934, as amended; and

      2) the information contained in the Report fairly presents, in all material respects, the financial condition and results of
          operations of the Company.

Date: March 15, 2006

/s/ JORMA ELORANTA 

Jorma Eloranta 

President and Chief Executive Officer 

A signed original of this certification required by Section 906 has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.