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Resources and Reserves

4E PGM Mineral Resources and Mineral Reserves split per operation and project as at 31 December 2018

Classified PGM Mineral Resources and Mineral Reserves as at 31 December 2018
 Mineral Resources 
Operations20182017

Underground
Tonnes
(Mt)
4E Grade
(g/t)
6E Grade
(g/t)
4E PGM
(Moz)
6E PGM
(Moz)
4E PGM
(Moz)
RSA operations: Kroondal (50% attributable)    
Measured 38.8 3.1 3.7 3.907 4.590 3.146
Indicated 4.9 3.7 4.4 0.593 0.695 1.472
Inferred 2.5 3.0 3.6 0.234 0.285 0.261
Total 46.2 3.2 3.8 4.734 5.571 4.879
RSA operations: Rustenburg    
Measured 371.9 4.9 5.7 58.207 68.348 59.212
Indicated 123.5 5.3 6.1 21.222 24.204 21.235
Inferred 15.4 5.6 6.3 2.755 3.128 2.762
Total 510.8 5.0 5.8 82.185 95.681 83.209
Non-RSA operations: Mimosa1 (50% attributable)    
Measured 28.4 3.7 3.9 3.367 3.570 3.570
Indicated 15.4 3.6 3.8 1.772 1.887 1.776
Inferred 4.4 3.6 3.9 0.514 0.548 0.512
Inferred (oxides) 9.0 3.5 3.6 0.998 1.033 0.981
Total 57.2 3.6 3.8 6.652 7.038 6.839
RSA operations: Blue Ridge (50% attributable)    
Measured           1.570
Indicated           0.420
Inferred           0.440
Total           2.430
Underground – total 614.1 4.7 5.5 93.571 108.290 97.357
Surface    
Surface rock dumps and tailings storage facilities    
Rustenburg (TSF) 75.5 1.1 1.2 2.610 2.936 2.818
Surface – total 75.5 1.1 1.2 2.610 2.936 2.818
PROJECTS    
Underground    
Hoedspruit (74% attributable)            
Measured    
Indicated 28.1 5.5   4.980   4.980
Inferred 4.5 5.6   0.810   0.810
Total 32.6 5.5   5.790   5.790
Zondernaam (74% attributable)    
Measured    
Indicated    
Inferred 77.4 6.4   15.900   15.900
Total 77.4 6.4   15.900   15.900
Vygenhoek (50% attributable)    
Measured 1.4 5.1   0.230   0.230
Indicated    
Inferred    
Total 1.4 5.1   0.230   0.230
Blue Ridge (50% attributable)    
Measured 14.8 3.3   1.570    
Indicated 4.1 3.2   0.420    
Inferred 4.2 3.3   0.440    
Total 23.1 3.3   2.430   0.000
Project – total 134.5 5.6   24.350   21.920
Grand total – underground, surface and projects 824.1 4.5   120.531   122.095
  • 1 Non-managed
 
 Mineral Reserves 
Operations20182017

Underground
Tonnes
(Mt)
4E Grade
(g/t)
6E Grade
(g/t)
4E PGM
(Moz)
6E PGM
(Moz)
4E PGM
(Moz)
RSA operations: Kroondal (50% attributable)            
Proved 18.4 2.6 3.0 1.536 1.792 1.243
Probable           0.561
Total 18.4 2.6 3.0 1.536 1.792 1.804
RSA operations: Rustenburg            
Proved 110.9 3.8 4.5 13.516 15.979 14.550
Probable 6.9 4.2 4.9 0.945 1.085 1.156
Total 117.8 3.8 4.5 14.461 17.064 15.706
Non-RSA operations: Mimosa (50% attributable)            
Proved 10.9 3.5 3.7 1.234 1.309 1.423
Probable 5.6 3.4 3.6 0.607 0.646 0.607
Total 16.5 3.5 3.7 1.841 1.955 2.030
Underground – total 152.7 3.6 4.2 17.838 20.811 19.540
Surface            
Surface rock dumps and tailings storage facilities            
Rustenburg (TSF) 75.5 1.1 1.2 2.610 2.936 2.818
Surface – total 75.5 1.1 1.2 2.610 2.936 2.818
Grand total – underground and surface 228.2 2.8 3.2 20.448 23.747 22.358