Table 13: Base Metal Reserves
2023 | 2022 | ||||||||||||
Grade and contained metals | Grade and contained metals | % Change in RoM3 |
|||||||||||
Operation1 | LoM (years) |
Category | RoM (Mt)2 |
% Zn |
% Pb |
% Cu |
Ag g/t |
RoM (Mt)2 |
% Zn |
% Pb |
% Cu |
Ag g/t |
|
BMM Deeps mine4 | Proved | 0.3 | 3.1 | 2.6 | 0.3 | 41 | 0.5 | 2.2 | 2.5 | 0.3 | 31 | (44) | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Northern Cape(UG) (zinc, lead, copper and silver) | 2 | Probable | 1.5 | 2.9 | 1.4 | 0.5 | 21 | 2.4 | 2.5 | 1.2 | 0.5 | 20 | (39) |
26% attributed to Exxaro2 | Total | 1.7 | 2.9 | 1.6 | 0.5 | 24 | 3.0 | 2.5 | 1.5 | 0.5 | 22 | (43) | |
Inferred Resources inside LoMP | 0.0 | 0.0 | |||||||||||
BMM Swartberg mine5 | Proved | 0.0 | |||||||||||
Northern Cape(OC/UG) (zinc, lead, copper and silver) | 24 | Probable | 53.8 | 0.6 | 1.9 | 0.4 | 31 | 48.0 | 0.6 | 2.0 | 0.4 | 33 | 12 |
26% attributed to Exxaro2 | Total | 53.8 | 0.6 | 1.9 | 0.4 | 31 | 48.0 | 0.6 | 2.0 | 0.4 | 33 | 12 | |
Inferred Resources inside LoMP | 0.0 | 0.0 | |||||||||||
Gamsberg North mine | Proved | 65.1 | 6.4 | 0.5 | 69.7 | 6.4 | 0.5 | (7) | |||||
Northern Cape(OC) (zinc) | 12 | Probable | 26.5 | 5.0 | 0.5 | 27.1 | 4.9 | 0.5 | (2) | ||||
26% attributed to Exxaro2 | Total | 91.6 | 6.0 | 0.5 | 96.8 | 6.0 | 0.5 | (5) | |||||
Inferred Resources inside LoMP | 0.0 | 0.0 |
1 | Operation refers to the BMM operating mine or significant project. Mining method: opencast (OC) or underground (UG). |
2 | Figures are reported at 100%, irrespective of percentage attributable to Exxaro, and refer to March 2023 only. |
3 | The percentage difference between 2023 reported RoM and 2022 reported RoM. Brackets signify a decrease. |
4 | The decrease is the result of mining depletion and updated Australian mining consultants stope designs. |
5 | The increase is the result of additional stope designs provided for the current UG mine. |