UNITEDTable STATESof SECURITIES AND EXCHANGE COMMISSION Contents

~~Washington,~~UNITED ~~D.C.~~STATES ~~20549~~SECURITIES AND EXCHANGE COMMISSION

~~FORM~~Washington, ~~6-K~~D.C. 20549

~~Report~~FORM ~~of Foreign Issuer Pursuant to Rule 13a~~6-~~16 or 15d-16~~K

~~under~~Report ~~the~~of ~~Securities~~Foreign ~~Exchange~~Issuer ~~Act~~Pursuant ofto ~~1934~~Rule 13a-16 or 15d-16

~~June 7,~~under ~~2007~~the Securities Exchange Act of 1934

~~Commission~~June 14, ~~file number 1-14400~~2007

~~Metso~~Commission ~~Corporation~~ file number 1-14400

~~(Translation~~Metso ~~of registrant’s name into English)~~Corporation ~~Fabianinkatu 9 A, P.O. Box 1220 FI-00101 Helsinki, Finland~~

~~Indicate~~(Translation byof ~~check mark whether the~~ registrant’s ~~files~~name orinto ~~will~~English) Fabianinkatu ~~file~~9 ~~annual~~A, P.O. ~~reports~~Box ~~under cover of~~1220 ~~Form 20~~FI-F00101 Helsinki, ~~or Form 40-F~~Finland

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F ~~þ Form~~or Form 40-F o

~~Indicate by check mark whether the registrant by furnishing the information contained in this~~ Form ~~is also thereby furnishing the information to the Commission pursuant to Rule~~ ~~12g3~~20-~~2(b)~~F ~~under~~þ Form ~~the Securities~~40-F ~~Exchange Act of 1934.~~ o

~~Yes~~Indicate ~~o No~~by þcheck mark whether the registrant by furnishing the information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.

~~If “~~Yes” iso No ~~marked, indicate below the file number assigned to the registrant in connection with Rule 12g-3-2(b): 82-~~ þ

~~TABLE~~If OF“Yes” ~~CONTENTS~~is marked, indicate below the file number assigned to the registrant in connection with Rule 12g-3-2(b): 82-

~~SIGNATURES~~TABLE OF CONTENTS

SIGNATURES

Date June 7,Table 2007 of Contents

~~Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused~~SIGNATURES ~~this report to be signed on its behalf of the undersigned, thereunto duly authorized.~~

~~Name:~~Date June 14, 2007

~~Olli~~Pursuant ~~Vaartimo~~to ~~Aleksanteri~~the ~~Lebedeff~~requirements ~~Executive~~of ~~Vice~~the ~~President~~Securities ~~and~~Exchange ~~CFO~~Act ~~Senior~~of ~~Vice President~~1934, ~~Metso~~the ~~Corporation~~Registrant ~~General~~has ~~Counsel~~duly ~~Metso~~caused this ~~Corporation~~report to be signed on its behalf of the undersigned, thereunto duly authorized.

~~Metso supplies heat recovery boiler for Fortum’s power plant in Finland~~Name:

~~(Helsinki,~~Olli ~~Finland,~~Vaartimo ~~June 7,~~Aleksanteri ~~2007)~~Lebedeff –Executive Vice President and CFO Senior Vice President, Metso Corporation ~~(NYSE:~~General ~~MX;~~Counsel ~~OMXH:~~Metso ~~MEO1V)~~ Corporation

MetsoTable Paper’s Power business line will supply a heat recovery boiler to Fortum’s Suomenoja power plant in Espoo, Finland. Start-up of the power plant is scheduled for the fourth quarter of 2009. The value of the order is approximately EUR 30 million. Contents

~~The~~Metso ~~heat~~supplies ~~recovery~~pulp ~~boiler~~mill ~~will~~equipment ~~be installed in Fortum’s new combined heat and power production plant adjacent to the existing Suomenoja power plant. The power plant will produce district heating~~ for ~~the~~ ~~surrounding~~Horizonte ~~communities~~Project ~~and~~in ~~electricity to the national grid. Its electricity production~~Brazil ~~capacity will be 234 megawatts (MW), and the district heating capacity 214 MW.~~

~~The~~(Helsinki, ~~new~~Finland, ~~power plant will use natural gas as fuel. The use of coal and oil in district heating production in the area will decrease~~June 14, ~~and~~2007) ~~therefore~~– ~~also~~Metso ~~sulfur~~Corporation ~~dioxide~~(NYSE: ~~and~~MX; ~~particle~~OMXH: ~~emissions will~~MEO1V) ~~be reduced.~~

Metso ~~is currently also supplying a power boiler for Fortum~~Paper’s ~~new~~Power ~~combined~~business ~~heat~~line ~~and~~will ~~power~~supply ~~plant~~a ~~in the~~new ~~city~~recovery ~~of Tartu~~boiler, ~~Estonia.~~a ~~The~~new ~~power~~evaporation ~~boiler (70 MWth)~~plant, ~~which~~and ~~utilizes bubbling~~a ~~fluidized~~new ~~bed~~power ~~technology,~~boiler ~~will~~for ~~burn~~the ~~biomass~~greenfield ~~and~~pulp ~~local~~mill ~~peat~~located toin ~~produce electricity and district heat~~Brazil. Start-up is scheduled for the first ~~end~~half of ~~2008~~2009. ~~This~~The ~~contract~~total ~~was~~value ~~included~~of inthe ~~Metso’s~~order ~~first quarter~~is ~~2007~~approximately ~~order~~EUR ~~backlog~~150 million.

~~Fortum~~The isorder awas ~~leading~~placed ~~energy~~to ~~company~~Poyry inEmpreendimentos ~~the~~Industriais ~~Nordic~~S.A., ~~countries~~the ~~and~~contractor ~~other~~chosen ~~parts~~by Chamflora, subsidiary of ~~the~~IP, ~~Baltic~~to ~~Rim~~build ~~area. Activities~~the ~~cover~~mill at the ~~generation,~~Três ~~distribution~~Lagoas ~~and~~site ~~sale~~in ofBrazil ~~electricity~~´s ~~and~~Mato ~~heat~~Grosso asdo ~~well~~Sul ~~as the~~state. ~~operation~~The ~~and~~project ~~maintenance~~was recently transferred to VCP as part of ~~power~~an ~~plants~~asset exchange between the two companies.

~~Metso~~The recovery boiler is arated ~~global~~at ~~engineering~~5,300 ~~and~~tons ~~technology~~of ~~corporation~~dry ~~with~~solids ~~2006~~per ~~net~~day ~~sales~~and ofthe ~~approximately EUR~~evaporation ~~5 billion.~~plant ~~Its~~at 251,~~500~~250 tons ~~employees~~of inevaporated ~~more~~water ~~than~~per 50hour. ~~countries~~The ~~serve~~biomass-fired ~~customers~~power inboiler ~~the~~(108 ~~pulp~~MWth) ~~and~~utilizes ~~paper~~bubbling ~~industry,~~fluidized ~~rock~~bed ~~and minerals processing, the energy industry and selected other industries~~technology. ~~www.metso.com~~

~~Further~~The ~~information~~design ~~for~~capacity ~~the~~of ~~press,~~this ~~please~~greenfield ~~contact: Kari~~bleached ~~Remes,~~eucalyptus ~~General~~market ~~Manager,~~pulp ~~Sales,~~mill ~~Metso~~is ~~Power~~1,250,000 ~~tel.~~tons ~~+358 40 709 2015~~per year.

~~Further~~VCP, ~~information~~part ~~for~~of ~~investors,~~the ~~please~~Votorantim ~~contact:~~Group which is one of the largest private industrial conglomerates in ~~Johanna~~Latin ~~Sintonen~~America, ~~Vice~~is ~~President~~one of Latin America’s biggest pulp and paper manufacturers. In Brazil, ~~Investor~~it ~~Relations~~is a leader in the segments of coated paper, ~~Metso~~carbonless ~~Corporation~~paper, ~~tel.~~thermal ~~+358~~paper 20and ~~484~~other ~~3253~~special grades.

orMetso 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

~~USA:~~Further ~~Mike~~information ~~Phillips~~for the press, ~~Senior~~please ~~Vice~~contact: Kari ~~President~~Remes, ~~Finance~~General ~~and~~Manager, ~~Administration~~Sales, Metso ~~USA,~~Power ~~Inc.~~Oy, tel. +1358 ~~770 246~~40 ~~7237.~~709 2015

Further information for investors, please contact:
Johanna Sintonen, Vice President, Investor Relations, Metso Corporation, tel. +358 40 530 0778

USA: Mike Phillips, Senior Vice President, Finance and Administration, Metso USA, Inc., tel. +1 770 246 7237.

Filing Compare · METSO CORP