| Proved | Probable | Total | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tonnes Mt | Grade g/t | Contents Gold t | Contents Gold Moz | Tonnes Mt | Grade eg/t | Contents Gold t | Contents Gold Moz | Tonnes Mt | Grade eg/t | Contents Gold t | Contents Gold Moz | |
| Blyvoor (74%) | ||||||||||||
| Underground | 16.152 | 5.95 | 96.116 | 3.090 | 8.250 | 5.52 | 45.555 | 1.465 | 24.402 | 5.81 | 141.671 | 4.555 |
| Surface | 9.707 | 0.73 | 7.086 | 0.228 | – | – | – | – | 9.707 | 0.73 | 7.086 | 0.228 |
| Total | 25.859 | 3.99 | 103.202 | 3.318 | 8.250 | 5.52 | 45.555 | 1.465 | 34.109 | 4.361 | 148.757 | 4.783 |
| ERPM (74%) | ||||||||||||
| Underground | 1.075 | 6.73 | 7.237 | 0.233 | 4.876 | 6.06 | 29.570 | 0.951 | 5.951 | 6.19 | 36.807 | 1.184 |
| Surface | 136.153 | 0.33 | 45.142 | 1.451 | - | - | - | - | 136.153 | 0.33 | 45.142 | 1.451 |
| Total | 137.228 | 0.38 | 52.379 | 1.684 | 4.876 | 6.06 | 29.570 | 0.951 | 142.104 | 0.58 | 81.949 | 2.635 |
| Crown (74%) | ||||||||||||
| Underground | – | – | – | – | – | – | – | – | – | – | – | – |
| Surface | 10.524 | 0.46 | 4.797 | 0.154 | 18.249 | 0.49 | 8.951 | 0.288 | 28.773 | 0.48 | 13.748 | 0.442 |
| Total | 10.524 | 0.46 | 4.797 | 0.154 | 18.249 | 0.49 | 8.951 | 0.288 | 28.773 | 0.48 | 13.748 | 0.442 |
| Ergo (37%) | ||||||||||||
| Underground | – | – | – | – | – | – | – | – | – | – | – | – |
| Surface | 5.291 | 0.36 | 1.906 | 0.061 | – | – | – | – | 5.291 | 0.36 | 1.906 | 0.061 |
| Total | 5.291 | 0.36 | 1.906 | 0.061 | – | – | – | – | 5.291 | 0.36 | 1.906 | 0.061 |
| Total group | ||||||||||||
| Underground | 17.227 | 6.00 | 103.353 | 3.323 | 13.126 | 5.72 | 75.125 | 2.416 | 30.353 | 5.88 | 178.478 | 5.739 |
| Surface | 161.675 | 0.36 | 58.931 | 1.894 | 18.249 | 0.49 | 8.951 | 0.288 | 179.924 | 0.38 | 67.882 | 2.182 |
| Total | 178.902 | 0.91 | 162.284 | 5.217 | 31.375 | 2.68 | 84.076 | 2.704 | 210.277 | 1.17 | 246.360 | 7.921 |
| Measured | Indicated | Inferred | Total | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tonnes Mt | Grade g/t | Content Gold t | Content Gold Moz | Tonnes Mt | Grade g/t | Content Gold t | Content Gold Moz | Tonnes Mt | Grade g/t | Content Gold t | Content Gold Moz | Tonnes Mt | Grade g/t | Content Gold t | Content Gold Moz | |
| Blyvoor (74%) | ||||||||||||||||
| Underground | 16.652 | 7.97 | 132.683 | 4.266 | 20.078 | 5.20 | 104.440 | 3.358 | 110.773 | 3.24 | 359.099 | 11.545 | 147.503 | 4.04 | 596.222 | 19.169 |
| Surface | 9.707 | 0.73 | 7.086 | 0.228 | 90.567 | 0.31 | 27.978 | 0.900 | 7.452 | 0.25 | 1.863 | 0.060 | 107.726 | 0.34 | 36.927 | 1.188 |
| Total | 26.359 | 5.30 | 139.769 | 4.494 | 110.645 | 1.20 | 132.418 | 4.258 | 118.225 | 3.05 | 360.962 | 11.605 | 255.229 | 2.48 | 633.149 | 20.357 |
| ERPM (74%) | ||||||||||||||||
| Underground | 2.097 | 6.52 | 13.675 | 0.440 | 9.358 | 6.50 | 60.872 | 1.957 | 121.278 | 6.44 | 781.472 | 25.125 | 132.733 | 6.45 | 856.019 | 27.522 |
| Surface | 136.153 | 0.33 | 45.142 | 1.451 | – | – | – | – | – | – | – | – | 136.153 | 0.33 | 45.142 | 1.451 |
| Total | 138.250 | 0.43 | 58.817 | 1.891 | 9.358 | 6.50 | 60.872 | 1.957 | 121.278 | 6.44 | 781.472 | 25.125 | 268.886 | 3.35 | 901.161 | 28.973 |
| Crown (74%) | ||||||||||||||||
| Underground | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |
| Surface | 74.033 | 0.40 | 29.421 | 0.946 | 269.686 | 0.25 | 66.911 | 2.151 | – | – | – | – | 343.719 | 0.28 | 96.332 | 3.097 |
| Total | 74.033 | 0.40 | 29.421 | 0.946 | 269.686 | 0.25 | 66.911 | 2.151 | – | – | – | – | 343.719 | 0.28 | 96.332 | 3.097 |
| Ergo (37%) | ||||||||||||||||
| Underground | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |
| Surface | 5.291 | 0.36 | 1.905 | 0.061 | – | – | – | – | 313.651 | 0.22 | 67.646 | 2.175 | 318.942 | 0.22 | 69.551 | 2.236 |
| Total | 5.291 | 0.36 | 1.905 | 0.061 | – | – | – | – | 313.651 | 0.22 | 67.646 | 2.175 | 318.942 | 0.22 | 69.551 | 2.236 |
| Total group | ||||||||||||||||
| Underground | 18.749 | 7.81 | 146.358 | 4.706 | 29.436 | 5.62 | 165.312 | 5.315 | 232.051 | 4.92 | 1 140.571 | 36.670 | 280.236 | 5.18 | 1 452.241 | 46.691 |
| Surface | 225.184 | 0.37 | 83.554 | 2.686 | 360.253 | 0.26 | 94.889 | 3.051 | 321.103 | 0.22 | 69.509 | 2.235 | 906.540 | 0.27 | 247.952 | 7.972 |
| Total | 243.933 | 0.94 | 229.912 | 7.392 | 389.689 | 0.67 | 260.201 | 8.366 | 553.154 | 2.19 | 1 210.080 | 38.905 | 1 186.776 | 1.43 | 1 700.193 | 54.663 |
| Blyvoor | ERPM | Crown | Ergo | ||
|---|---|---|---|---|---|
| Underground | |||||
| Working cost | R/t | 1 059.72 | 999.45 | ||
| Gold price | R/kg | 208 287 | 208 287 | ||
| Plant recovery | % | 94.7 | 94 | ||
| Mine call factor | % | 86.8 | 85.0 | ||
| Mining factors: | |||||
| Sundries | % | 12.9 | 9.0 | ||
| Discrepancies | % | 9.9 | 12.0 | ||
| Required yield | g/t | 5.19 | 4.80 | ||
| Head grade | g/t | 5.48 | 5.09 | ||
| Broken grade | g/t | 8.05 | 7.47 | ||
| Stope width | cm | 111 | 132 | ||
| Surface | |||||
| Working cost | R/t | 20.13 | 53.99 | 45.47 | 23.10 |
| Gold price | R/kg | 208 287 | 208 287 | 208 287 | 208 287 |
| Plant recovery | % | 50.3 | 66.00 | 64.04 | 49.30 |
| Mine call factor | % | 100 | 100 | 100 | 100 |
| Mining factors: | |||||
| Reclamation | % | 100 | 100 | 100 | 100 |
| Required yield | g/t | 0.097 | 0.245 | 0.207 | 0.111 |
| Head grade | g/t | 0.192 | 0.372 | 0.323 | 0.225 |
| Broken grade | g/t | 0.192 | 0.372 | 0.323 | 0.225 |
Mineral Resources are stated inclusive of Ore Reserves. Ore Reserves for the operations are calculated using a total working cost pay limit, the previous three years’ mining efficiencies and the current life-of-mine plan. The working cost pay limit is calculated per individual shaft or costing areas using area costing figures, and then combined to formulate the total pay limit. ERPM’s working costs excludes pumping incurred at its SEV Shaft, as it is not required to sustain mining operations.