Anglo American Annual Report 2012

ORE RESERVES AND MINERAL RESOURCESCOPPERestimates as at 31 December 2012COPPERThe Ore Reserve and Mineral Resource estimates were compiled in accordance with the Australasian Code for Reporting of Exploration Results, MineralResources and Ore Reserves (The JORC Code, 2004) as a minimum standard. The figures reported represent 100% of the Ore Reserves and MineralResources, the percentage attributable to Anglo American plc is stated separately. Rounding of figures may cause computational discrepancies.Copper – OperationsMineTonnes Grade Contained MetalORE RESERVES (1)Attributable % Life Classification 2012 2011 2012 2011 2012 2011Collahuasi (OP) (2) 44.0 70 Mt Mt %TCu %TCu kt ktOxide and Mixed Proved 31.0 0.0 0.58 0.60 181 0Heap Leach Copper Probable 13.0 35.4 0.71 0.63 93 224Total 44.1 35.4 0.62 0.63 274 224%TCu%TCuSulphide Proved 419.1 285.0 1.00 1.07 4,200 3,042Flotation – direct feed Copper Probable 1,655.1 1,640.3 0.98 0.93 16,202 15,177Total 2,074.2 1,925.3 0.98 0.95 20,402 18,219%Mo%MoProved 0.024 – 98 –Molybdenum Probable 0.024 – 398 –Total 0.024 – 496 –%TCu%TCuLow Grade Sulphide Proved – – – – – –Flotation – stockpile Copper Probable 1,069.2 935.2 0.49 0.49 5,219 4,596Total 1,069.2 935.2 0.49 0.49 5,219 4,596%Mo%MoProved – – – –Molybdenum Probable 0.010 – 105 –Total 0.010 – 105 –El Soldado (OP) 50.1 23 %TCu %TCuSulphide Proved 125.7 95.4 0.81 0.96 1,018 915Flotation (3) Probable 44.6 67.3 0.79 0.79 352 533Total 170.3 162.7 0.80 0.89 1,371 1,448Oxide Proved – – – – – –Heap Leach Probable 3.0 3.5 0.45 0.46 14 16Total 3.0 3.5 0.45 0.46 14 16Los Bronces (OP) 50.1 36 %TCu %TCuSulphide Proved 729.9 899.6 0.70 0.69 5,109 6,208Flotation Copper Probable 779.4 598.8 0.53 0.51 4,131 3,054Total 1,509.3 1,498.4 0.61 0.62 9,240 9,261%Mo%MoProved 0.016 – 117 –Molybdenum Probable 0.013 – 101 –Total 0.014 – 218 –%TCu%TCuSulphide Proved 428.6 486.6 0.32 0.35 1,371 1,703Dump Leach (4) Copper Probable 179.0 197.1 0.29 0.27 519 532Total 607.6 683.7 0.31 0.33 1,891 2,235%Mo%MoProved 0.007 – 30 –Molybdenum Probable 0.006 – 11 –Total 0.007 – 41 –Mantos Blancos (OP) 100 8 %ICu %ICuSulphide Proved 14.1 26.3 0.82 0.83 115 218Flotation (5) Probable 21.6 19.7 0.79 0.80 170 157Total 35.6 46.0 0.80 0.82 286 376%ASCu%ASCuOxide Proved 2.7 8.3 0.55 0.54 15 45Vat and Heap Leach (6) Probable 12.7 16.3 0.38 0.33 47 54Total 15.4 24.7 0.41 0.40 62 99%ASCu%ASCuOxide Proved – 2.1 – 0.18 – 4Dump Leach (7) Probable 36.8 49.6 0.23 0.23 84 115Total 36.8 51.7 0.23 0.23 84 119Mantoverde (OP) 100 5 %ASCu %ASCuOxide Proved 22.2 33.3 0.56 0.59 124 196Heap Leach (8) Probable 20.2 9.5 0.52 0.55 105 52Total 42.3 42.7 0.54 0.58 229 248%ASCu%ASCuOxide Proved 18.4 27.2 0.23 0.24 42 65Dump Leach (9) Probable 25.7 18.2 0.27 0.28 70 51Total 44.2 45.4 0.25 0.26 112 116Mining method: OP = Open Pit. Mine Life = The extraction period in years for scheduled Ore Reserves comprising Proved and Probable Reserves only.TCu = total copper, ICu = insoluble copper (total copper less acid soluble copper), ASCu = acid soluble copper.208 Anglo American plc Annual Report 2012