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Overview o Southern Peru Division

The development o the Antapaccay satellite deposit willconvert the existing Tintaya operation into a long li e, low costasset and increase its production by 60%.The combined development o the Antapaccay andLas Bambas Projects will trans orm Xstrata Copper’s assetsin Southern Peru into a world class operating division.A total capital investment o US$5.7 billion will be made todevelop the Antapaccay and Las Bambas Projects, resulting ina ve- old increase in Xstrata Copper’s production in theregion to over 500,000 tonnes o ne copper per annum romthe end o 2014.Xstrata Copper holds Mineral Resources in the region o over2 billion tonnes at an average grade o 0.81% copper,including the early stage, high grade Coroccohuayco Project,located 10 kilometres rom Tintaya.

Xstrata Copper’s innovative ‘standard concentrator’ designconcept will be applied at both Las Bambas and Antapaccayresulting in reduced capex, operational costs and long-leaddelivery times.Copper concentrates rom Las Bambas will be pumped througha 215 kilometre pipeline to a molybdenum and lter plantat Tintaya-Antapaccay and then transported by railroad toMatarani Port.Las Bambas will be one o the two largest copper green eldprojects to be commissioned globally during the next

ve years.The development o the world class, long li e and low costLas Bambas and Antapaccay Projects will make a signi cantcontribution to the trans ormation o Xstrata Copper’s overallcost and production pro le during the next our years.

Located 150 kilometres apart, theLas Bambas and Antapaccay Projectswill beneft rom important synergiesthat will reduce capital and operatingcosts in the orm o transport and portin rastructure and logistics; standardized

plant design, construction andoperation; and support unctions.

Las Bambas and Antapaccay Projects

October 2010

Southern Peru

Las Bambas & Antapaccayflter plants

Salinas & AguadaBlanca National Reserve

Cotahuasi National Reserve

Cities and Towns Operations & Projects National ReservesAccess Roads Projected Railroad Railroad Concentrate Pipeline

Apurimac Region

AyacuchoRegion

Moquegua Region

Puno Region

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The Antapaccay copper deposit is located 10 kilometres romXstrata Copper’s Tintaya operation in Espinar Province, CuscoRegion at an altitude o around 4,000 metres.

Investment: US$1.47 billionTwo open pits70,000tpd (single line) sulphide grinding/fotation concentratorInitial production o 160,000tpy copper in concentratesInitial C1 cash costs including by-product credits o 90c/lbInitial mine li e o 20 yearsProduction start up mid 2012Current Mineral Resource: 720Mt at a grade o 0.56%copper, plus gold credits, using a 0.2% copper cut-o grade

Tintaya - Antapaccay Las BambasThe green eld Las Bambas Project is located in Cotabambasand Grau Provinces, Apurímac Region, at an altitude o over3,700 metres.

Investment: US$4.22 billionThree open pits140,000tpd (two line) sulphide grinding/fotation concentratorInitial production o 400,000tpy copper in concentratesInitial C1 cash costs including by product credits o 60c/lbInitial mine li e o 18 yearsProduction start up mid 2014Current Mineral Resource: 1.13Bt at a grade o 0.77% copper, plus gold,silver and molybdenum credits, using a 0.3% copper cut-o grade

For further additional information contact: Emily Russell - Manager Corporate Communications - Xstrata CopperTel: +56 2 478 2204 - Email: erussell@xstratacopper.com - www.xstratacopper.com

CommenceFeasibilityStudy

Procuregrinding mills,

gearlessmotor drivesand crusher

CommenceFeasibilityStudy

Environmental andSocial ImpactAssessmentapproved

Major earthworks

completedPour frst concrete

Feasibility Studycompleted anddetailed engineeringstarts

Procure grindingmills, gearless motordrives and primarycrusher

Acquisitiono Tintaya,includingAntapaccaydeposit

Resourcedefnitiondrillingand PFScommences

FeasibilityStudycomplete

ANTAPACCAY

2004 2005 2006 2008 2009 2010 2011 2012 2013 2014 2015

LASBAMBAS

Planterectionstarts

Pre-stripping

Commissioningand ramp up

Fullproduction

AcquisitionoLas Bambas

Environmentaland SocialImpactAssessmentapproved

Majorearthworksunderway

Commissionandramp up

Fullproduction

Plantconstructionstarts

Pre-strippingExplorationand initialevaluationcommences

Las Bambas and Antapaccay Project timelines