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Resources and Reserves

2E PGM Mineral Resources and Mineral Reserves split per operation and project as at 31 December 2018

PGM Mineral Resources
(83.8Moz)
PGM Mineral Reserves
(25.6Moz)
Gold Mineral Resources
(6.6Moz)
Copper Mineral Resources
(18,795.1Mlb)

Classified 2E PGM Mineral Resources and Mineral Reserves statement as at 31 December 2018
 Mineral Resources  Mineral Reserves 
Operations20182017Operations20182017

Underground
Tonnes
(Mt)
Grade
(g/t)
2E PGM
(Moz)
2E PGM
(Moz)

Underground
Tonnes
(Mt)
Grade
(g/t)
2E PGM
(Moz)
2E PGM
(Moz)
Stillwater     Stillwater    
Measured 5.1 19.7 3.214 2.527 Proved 3.4 19.3 2.123 1.727
Indicated 28.2 17.4 15.738 12.132 Probable 20.5 19.2 12.634 9.792
Inferred 48.9 17.1 26.877 27.485          
Total 82.2 17.3 45.829 42.144 Total 23.9 19.2 14.756 11.519
East Boulder     East Boulder    
Measured 3.9 14.7 1.849 1.687 Proved 2.9 14.6 1.342 1.018
Indicated 27.2 15.1 13.149 14.689 Probable 19.7 15.1 9.515 9.366
Inferred 38.4 15.4 19.033 21.943      
Total 69.5 15.2 34.031 38.319 Total 22.5 15.0 10.858 10.384
Underground – total 151.7 16.4 79.860 80.463 Underground – total 46.4 17.2 25.614 21.903
PROJECTS     PROJECTS    
Marathon     Marathon    
Measured 93.4 0.9 2.693   Measured    
Indicated 57.9 0.8 1.290   Indicated    
Inferred 0.4 0.1 0.001   Inferred    
Total 151.7 0.8 3.984 3.984 Total    
Operations and
projects – grand total
303.4 8.6 83.844 84.447 Projects – total 46.4 17.2 25.614 21.903
Classified gold Mineral Resources and Mineral Reserves statement as at 31 December 2018
 Mineral Resources  Mineral Reserves 
PROJECTS20182017PROJECTS20182017
 Tonnes
(Mt)
Grade
(g/t)
Gold
(Moz)
Gold
(Moz)
 Tonnes
(Mt)
Grade
(g/t)
2E PGM
(Moz)
Gold
(Moz)
Altar1, 2     Altar    
Measured 1,005.9 0.1 2.981 2.981 Proved    
Indicated 1,051.5 0.1 2.253 2.253 Probable    
Inferred 556.6 0.1 1.087 1.087      
Total 2,614.0 0.1 6.321 6.321 Total    
Rio Grande1, 2, 3     Rio Grande    
Measured      Proved    
Indicated 14.1 0.4 0.162   Probable    
Inferred 8.2 0.3 0.074        
Total 22.3 0.3 0.237   Total    
Projects – total 2,636.3 0.1 6.558 6.321 Projects – total    
  • 1Non-managed
  • 2CIM (2014) definitions were followed for Mineral Resources
  • 3Attributable portion to Sibanye-Stillwater at 19.9% based on stock equity percentage in Aldebaran Resources
Classified copper Mineral Resources and Mineral Reserves statement as at 31 December 2018
 Mineral Resources  Mineral Reserves 
PROJECTS20182017PROJECTS20182017
 Tonnes
(Mt)
Grade
(g/t)
Gold
(Moz)
Gold
(Moz)
 Tonnes
(Mt)
Grade
(g/t)
2E PGM
(Moz)
Gold
(Moz)
Altar1, 2     Altar    
Measured 1,005.9 0.34 7,458.0 7,458.0 Proved    
Indicated 1,051.5 0.30 7,053.0 7,053.0 Probable    
Inferred 556.6 0.28 3,420.0 3,420.0      
Total 2,614.0 0.31 17,931.0 17,931.0 Total    
Rio Grande1, 2, 3         Rio Grande    
Measured     Proved    
Indicated 14.1 0.30 93.2   Probable    
Inferred 8.2 0.23 41.5        
Total 22.3 0.27 134.7   Total    
Marathon     Marathon    
Measured 93.4 0.23 473.5 473.5 Proved    
Indicated 57.9 0.20 254.0 254.0 Probable    
Inferred 0.4 0.29 2.6 2.6      
Total 151.7 0.22 730.1 730.1 Total    
Projects – total 2,765.7 0.31 18,795.8 18,661.1 Projects – total    
  • 1Non-managed
  • 2CIM (2014) definitions were followed for Mineral Resources
  • 3Attributable portion to Sibanye-Stillwater at 19.9% based on stock equity percentage in Aldebaran Resources