Anglo American Annual Report 2012

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ORE RESERVES AND MINERAL RESOURCESESTIMATED MINERAL RESOURCES (1) (MEASURED + INDICATED)as at 31 December 2012Detailed Measured, Indicated and Inferred figures appear on the referenced pagesKUMBA IRON ORE(See page 196 for details)Attributable%MiningMethodGradeKolomela 51.5 OP 60.3 Mt 65.0 %FeSishen 51.5 OP 452.4 Mt 60.2 %FeThabazimbi 51.5 OP 10.7 Mt 62.5 %FeIRON ORE BRAZIL(See page 197 for details)Attributable%MiningMethodIn-situTonnesIn-situTonnes (2)GradeItapanhoacanga Friable Itabirite and Hematite 100 – 154.5 Mt 41.1 %FeCompact Itabirite – 96.8 Mt 34.3 %FeSerra do Sapo Friable Itabirite and Hematite 100 OP 385.4 Mt 32.9 %FeCompact Itabirite – 2,811.2 Mt 31.1 %FeSerro Friable Itabirite and Hematite 100 – 9.5 Mt 63.6 %FeOMI (Non-core)(See page 198 for details)Attributable%MiningMethodIn-situTonnes (2)GradeAmapá Canga 70.0 OP 8.0 Mt 48.7 %FeSAMANCOR MANGANESE(See page 199 for details)Colluvium OP 61.6 Mt 38.8 %FeFriable Itabirite and Hematite OP 137.7 Mt 41.1 %FeAttributable%MiningMethodGradeGEMCO (3) 40.0 OP 107.1 Mt 46.7 %MnMamatwan (4) 29.6 OP 116.7 Mt 35.0 %MnWessels 29.6 UG 137.8 Mt 43.8 %MnMETALLURGICAL COAL(See page 201 for details)Attributable%MiningMethodIn-situTonnesIn-situTonnes (5)Coal QualityCallide 100 OC 525.7 Mt 4,870 kcal/kgCapcoal (OC) 76.8 OC 41.7 Mt 7,080 kcal/kgCapcoal (UG) 70.0 UG 144.3 Mt 6,680 kcal/kgDawson 51.0 OC 311.1 Mt 6,660 kcal/kgDrayton 88.2 OC 11.8 Mt 6,550 kcal/kgFoxleigh 70.0 OC 33.3 Mt 7,110 kcal/kgMoranbah North 88.0 UG 76.9 Mt 6,640 kcal/kgTrend 100 OC 21.2 Mt 6,500 kcal/kgTHERMAL COAL(See page 206 for details)Attributable%MiningMethodIn-situTonnes (5)Coal QualityCerrejón 33.3 OC 1,063.6 Mt 6,440 kcal/kgGoedehoop 100 UG&OC 158.8 Mt 5,490 kcal/kgGreenside 100 UG 19.6 Mt 5,590 kcal/kgIsibonelo 100 OC 16.3 Mt 5,250 kcal/kgKleinkopje 100 OC 30.4 Mt 5,040 kcal/kgKriel 73.0 UG&OC 18.8 Mt 5,060 kcal/kgLandau 100 OC 94.8 Mt 4,960 kcal/kgMafube 50.0 OC 69.7 Mt 5,150 kcal/kgZibulo 73.0 UG&OC 349.0 Mt 4,920 kcal/kgCOPPER(See pages 210–211 for details)Attributable%MiningMethodContainedCopper Tonnes GradeCollahuasi Heap Leach 44.0 OP 3 kt 0.5 Mt 0.70 %TCuFlotation – direct feed 10,856 kt 1,153.6 Mt 0.94 %TCuFlotation – stockpile 1,263 kt 272.1 Mt 0.46 %TCuEl Soldado Flotation 50.1 OP 248 kt 32.4 Mt 0.77 %TCuHeap Leach 0 kt 0.0 Mt 0.66 %TCuLos Bronces Flotation 50.1 OP 3,972 kt 982.4 Mt 0.40 %TCuMantos Blancos Flotation 100 OP 734 kt 95.0 Mt 0.77 %ICuVat and Heap Leach 67 kt 14.6 Mt 0.46 %ASCuDump Leach 15 kt 8.8 Mt 0.17 %ASCuMantoverde Heap Leach 100 OP 57 kt 11.8 Mt 0.48 %ASCu194 Anglo American plc Annual Report 2012
ORE RESERVES AND MINERAL RESOURCESNICKEL(See page 213 for details)Attributable%MiningMethodContainedNickel Tonnes GradeBarro Alto Direct Feed 100 OP 193 kt 14.0 Mt 1.38 %NiStockpile 85 kt 7.1 Mt 1.19 %NiNiquelândia 100 OP 70 kt 5.7 Mt 1.24 %NiPLATINUM (6)(See page 215 for details)Attributable%MiningMethodContainedPGE Tonnes Grade (4E)Main Sulphide Zone 79.9 UG 15.4 Moz (4E) 113.6 Mt 4.21 g/tMerensky Reef UG 85.7 Moz (4E) 479.9 Mt 5.55 g/tPlatreef OP 62.8 Moz (4E) 891.8 Mt 2.19 g/tUG2 Reef UG 186.8 Moz (4E) 1,131.6 Mt 5.13 g/tDIAMONDS (7)(See pages 217–221 for details)Attributable%MiningMethod Carats Tonnes/Area GradeDBCi – Snap Lake 85.0 UG 4.7 M¢ 2.5 Mt 189.27 cphtDBCi – Victor 85.0 OP 2.5 M¢ 12.9 Mt 19.34 cphtDBCM – Namaqualand 62.9 OC 2.1 M¢ 19.3 Mt 10.87 cphtDBCM – Venetia (OP) 62.9 OP 35.4 M¢ 34.2 Mt 103.46 cphtDBCM – Venetia (UG) 62.9 UG 95.5 M¢ 109.9 Mt 86.93 cphtDebswana – Damtshaa 42.5 OP 6.3 M¢ 29.3 Mt 21.46 cphtDebswana – Jwaneng 42.5 OP 84.3 M¢ 70.1 Mt 120.35 cphtDebswana – Letlhakane 42.5 OP 7.8 M¢ 27.4 Mt 28.62 cphtDebswana – Orapa 42.5 OP 119.1 M¢ 167.3 Mt 71.20 cphtNamdeb – Douglas Bay 42.5 OC 111 k¢ 1,502 kt 7.39 cphtNamdeb – Elizabeth Bay 42.5 OC 548 k¢ 4,718 kt 11.62 cphtNamdeb – Mining Area 1 42.5 OC 178 k¢ 17,597 kt 1.01 cphtNamdeb – Orange River 42.5 OC 544 k¢ 109,725 kt 0.50 cphtNamdeb – Atlantic 1 42.5 MM 10,773 k¢ 114,190 k m 2 0.09 cpm 2Namdeb – Midwater 42.5 MM 330 k¢ 1,339 k m 2 0.25 cpm 2PHOSPHATE PRODUCTS(See page 222 for details)Attributable%MiningMethod Tonnes GradeOuvidor 100 OP 64.1 Mt 11.9 %P 2 O 5NIOBIUM(See page 223 for details)Attributable%MiningMethodContainedProduct Tonnes GradeBoa Vista Oxide 100 OP 42 kt 3.4 Mt 1.22 %Nb 2 O 5Mining method: OP = Open Pit, UG = Underground, OC = Open Cut, MM = Marine Mining.(1)Estimated Measured plus Indicated Resources are the sum of the Measured and Indicated Mineral Resources (on an exclusive basis, i.e. Mineral Resources are reported as additional toOre Reserves). Please refer to the detailed Business Units/Commodities Mineral Resource estimates tables for the individual Measured, Indicated and Inferred estimates. The Mineral Resourceestimates were compiled in accordance with the Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves (The JORC Code, 2004) as a minimum standard.The Mineral Resource estimates for operations in South Africa were compiled in accordance with The South African Code for the Reporting of Exploration Results, Mineral Resources and MineralReserves, (The SAMREC Code, 2007 Edition as amended July 2009).The figures reported represent 100% of the Mineral Resources, the percentage attributable to Anglo American plc is stated separately. Rounding of figures may cause computational discrepancies.(2)Tonnes are reported on a wet basis. Assays are on a dry basis.(3)GEMCO Manganese grades are given as per washed ore samples and should be read together with their respective yields.(4)Mamatwan tonnages stated as wet metric tonnes.(5)Coal Resources are quoted on a Mineable Tonnes In-Situ (MTIS) basis in million tonnes which are in addition to those resources which have been modified to produce the reported Coal Reserves. CoalResources are on an in-situ moisture basis. The coal quality for the Coal Resources is quoted on an in-situ heat content as Calorific Value (CV) using kilo-calories per kilogram (kcal/kg) units ona Gross As Received (GAR) basis. CV is rounded to the nearest 10 kcal/kg.(6)Details of the individual operations appear in the Anglo American Platinum Annual Report. Merensky Reef and UG2 Reef Mineral Resources are estimated over a practical minimum mining widthsuitable for the deposit known as the ‘Resource Cut’. The minimum mining width over which Mineral Resources are declared is 110cm. The ‘Resource Cut’ width takes cognisance of the mining methodand geotechnical aspects in the hanging wall or footwall of the reef. The figures reported represent 100% of the Ore Reserves attributable to Anglo American Platinum unless otherwise noted.4E is the sum of Platinum, Palladium, Rhodium and Gold in grammes per tonne (g/t).(7)DBCi = De Beers Canada, DBCM = De Beers Consolidates Mines, Debswana = Debswana Diamond Company, Namdeb = Namdeb Holdingsk¢ = thousand carats. M¢ = million carats. k m² = thousand square metres. Grade is quoted as carats per hundred metric tonnes (cpht) or as carats per square meter (cpm²).Reported Diamond Resources are based on a Bottom Cut Off (BCO) which refers to the bottom screen size aperture and varies between 1.00mm and 3.00mm (nominal square mesh).Diamond Resources are quoted as inclusive of those used to calculate Diamond Reserves and must not be added to the Diamond Reserves.Ore Reserves and Mineral ResourcesAnglo American plc Annual Report 2012 195
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A BALANCEDPORTFOLIOWITH THE FUTURE
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HeadquartersLondon,United KingdomCo
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OVERVIEW CHAIRMAN’S STATEMENTCHAI
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OVERVIEW MARKETPLACEA BRIGHTER OUTL
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OVERVIEW MARKETPLACEWELL PLACED FOR
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OVERVIEW OUR STRATEGY AND BUSINESS
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OVERVIEW CHIEF EXECUTIVE’S STATEM
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OPERATING AND FINANCIAL REVIEW KEY
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GOVERNANCE INTRODUCTIONGOVERNANCESi
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FINANCIAL STATEMENTSRESPONSIBILITY
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Anglo American plc20 Carlton House
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Anglo American Annual Report 2012

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