Mineral Reserves and Resources

Mineral Reserve Estimates

Proven and Probable Mineral Reserves1 2

 December 31, 2018December 31, 2019
 Tonnes
(millions)
Grade
(g Au/t)
Oz Au
(000’s)
Tonnes
(millions)
Grade
(g Au/t)
Oz Au
(000’s)
Underground      
Proven1.234.821911.074.40150
Probable1.034.611521.513.70180
Total2.264.733432.584.00330
       
Open Pit      
Probable1.511.32641.351.1050
       
Stockpiles      
Proven0.230.947
       
Grand Total4.003.224143.933.00380

1 Mineral Reserves are included within the Mineral Resources.
2 All figures are rounded and use significant figures. Subtotals, totals, and weighted averages are calculated from quantities before rounding.

Mineral Resource Estimates

Measured and Indicated Mineral Resources1 2

 December 31, 2018December 31, 2019
 Tonnes
(millions)
Grade
(g Au/t)
Oz Au
(000’s)
Tonnes
(millions)
Grade
(g Au/t)
Oz Au
(000’s)
Underground      
Measured1.787.664373.695.50650
Indicated2.955.945645.544.60820
Total4.73 6.59 1,001 9.23 5.00 1,470
       
Open Pit      
Measured      
Indicated4.701.462212.691.40120
Total4.701.462212.691.40 120
       
Stockpiles      
Measured0.230.947
       
Grand Total9.65 3.96 1,229 11.92 4.20 1,590

1 Mineral Resources are inclusive of Mineral Reserves.
2 All figures are rounded and use significant figures. Subtotals, totals, and weighted averages are calculated from quantities before rounding.

Inferred Mineral Resources1

 December 31, 2018December 31, 2019
 Tonnes
(millions)
Grade
(g Au/t)
Oz Au
(000’s)
Tonnes
(millions)
Grade
(g Au/t)
Oz Au
(000’s)
Underground      
Inferred10.454.901,64519.454.202,640
       
Open Pit      
Inferred4.001.401804.731.20180
       
Grand Total14.45 3.93 1,825 24.19 3.60 2,820

1 All figures are rounded and use significant figures. Subtotals, totals, and weighted averages are calculated from quantities before rounding.

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