ore reserves and mineral resources 2011 report - Anglo American ...

SECURING OUR FUTURE
ORE RESERVE AND MINERAL RESOURCE ESTIMATES
as at 31 December 2011
MINERAL RESOURCES BY MINE/PROJECT
Mineral Resources exclusive of Ore Reserves (4E)
The figures in the table below represent Anglo American Platinum Limited’s (Amplats) attributable interests:
Merensky UG2 Platreef Tailings
Resources 4E million Resources 4E million Resources 4E million Resources 4E million
Mine/project million Grade troy million Grade troy million Grade troy million Grade troy
(AAPL interest) Category tonnes 4E g/t ounces tonnes 4E g/t ounces tonnes 4E g/t ounces tonnes 4E g/t ounces
SOUTH AFRICA
Der Brochen Project Measured 37.4 4.63 5.6 60.9 4.09 8.0
(100%) Indicated 45.5 4.43 6.5 158.8 4.04 20.6
Inferred 97.7 4.25 13.3 181.2 3.91 22.8
Total 180.7 4.37 25.4 400.9 3.98 51.4
Ga-Phasha PGM Project Measured 9.9 4.52 1.4 19.8 6.00 3.8
(49%) Indicated 18.5 4.97 3.0 29.8 5.84 5.6
Inferred 87.1 5.32 14.9 59.9 6.26 12.1
Total 115.5 5.20 19.3 109.5 6.10 21.5
Pandora Mine (42.5%) Measured 3.1 4.81 0.5
Indicated 14.1 4.51 2.0
Inferred 42.1 4.12 5.6
Total 59.3 4.25 8.1
Magazynskraal Project Measured 0.5 5.52 0.1
(20%) Indicated 1.8 5.44 0.3 3.5 4.49 0.5
Inferred 5.4 5.51 1.0 9.2 4.69 1.4
Total 7.2 5.49 1.3 13.2 4.67 2.0
Other exploration Measured 0.1 6.90 0.0 1.4 5.21 0.2
projects (variable %) Indicated 2.2 7.82 0.5 5.3 5.81 1.0
Inferred 1.3 7.01 0.3 4.4 5.89 0.8
Total 3.6 7.50 0.9 11.0 5.77 2.0
General
1
For reconciliation purposes the Mineral Resources from the individual mines Khuseleka, Thembelani, Khomanani, Siphumelele and Bathopele have been tabulated
to enable a comparison with the previously reported Rustenburg Mine. Additional Mineral Resources outside the five mines and within the original Rustenburg mine
lease area are included under ‘Rustenburg non-mine projects’. The total of the five mines and the ‘Rustenburg non-mine project’ is equivalent to the total Rustenburg
area. In several instances the 2011 mine boundaries do not correspond with the previous year. During 2011, some additional mine boundaries changes occurred
especially for the UG2 Reef between ‘Rustenburg non-mine projects’ and Khomanani/Siphumelele. Another significant mine boundary change occurred between
Khuseleka and Thembelani. For reconciliation purposes the entire Rustenburg area will be compared.
2
For reconciliation purposes the Mineral Resources from the individual mines Tumela and Dishaba have been tabulated to enable a comparison with the previously
reported Amandelbult Mine.
3
During 2011, Union Mine was split into two mines: Union North and Union South. For this annual report the combined mine information is presented.
Rounding of figures may result in computational discrepancies. 4E grade reported: sum of platinum, palladium, rhodium and gold grades.
The Mineral Resources are quoted exclusive of Ore Reserves and after geological losses.
For the Boikgantsho and Sheba’s Ridge Project see page 188.
Prill and base metal estimates
The prill % distribution (platinum, palladium, rhodium and gold %) and the base metal grades (copper, nickel) are based on the modelled and
evaluated information, are quoted over the Resource Cut and reflect the Mineral Resources inclusive of Ore Reserves.
30 ANGLO AMERICAN PLATINUM LIMITED 2011