The table below details the total Coal Reserves estimated as at 31 December 2022.
Table 10: Coal Reserves
2022 | 2021 | |||||||||||||
RoM and saleable tonnes5 | RoM and saleable tonnes5 | |||||||||||||
Operation1 | Location3 | LoM (years)4 | Category | RoM (Mt) |
RoM moisture % |
Export (Mt) |
Thermal (Mt) |
Metal- lurgical (Mt) |
RoM (Mt) |
RoM moisture % |
Export (Mt) |
Thermal (Mt) | Metal- lurgical (Mt) |
% change in RoM6 |
Matla (UG) (captive market) 100% attributed to Exxaro2 |
2+ | Proved | 129.6 | 9.5 | 130 | 124.0 | 9.1 | 138 | 5 | |||||
Probable | 37.8 | 9.5 | 38 | 37.8 | 8.9 | 23 | – | |||||||
Total | 167.4 | 9.5 | 167 | 161.8 | 9.1 | 162 | 3 | |||||||
Inferred Resources inside LoMP |
5.6 | 7.6 | ||||||||||||
Leeuwpan (OC) (commercial market) 100% attributed to Exxaro2 |
7 | Proved | 36.1 | 3.1 | 26.4 | 40.2 | 3.1 | 27.3 | (10) | |||||
Probable | 3.3 | 2.6 | 1.5 | 3.2 | 2.6 | 1.9 | 2 | |||||||
Total | 39.4 | 3.1 | 26.4 | 1.5 | 43.5 | 3.1 | 27.3 | 1.9 | (9) | |||||
Inferred Resources inside LoMP |
0.0 | 0.0 | ||||||||||||
Mafube7 (OC) (commercial market) 50% attributed to Exxaro2 |
21+ | Proved | 80.6 | 8.0 | 44.2 | 12.7 | 26.7 | 5.7 | 18 | 202 | ||||
Probable | 40.8 | 8.0 | 25.6 | 1.2 | 23.0 | 5.8 | 14.8 | 77 | ||||||
Total | 121.4 | 8.0 | 69.8 | 13.9 | 49.7 | 5.7 | 32.8 | 144 | ||||||
Inferred Resources inside LoMP |
1.6 | 1.7 | ||||||||||||
Belfast8 (OC) (commercial market) 100% attributed to Exxaro2 |
11 | Proved | 35.8 | 3.4 | 31.6 | 37.5 | 3.4 | 33.3 | (4) | |||||
Probable | 1.4 | 2.9 | 1.1 | 2.4 | 2.6 | 1.8 | (42) | |||||||
Total | 37.2 | 3.4 | 32.7 | 39.9 | 3.3 | 35.1 | (7) | |||||||
Inferred Resources inside LoMP |
1.0 | 0.5 | ||||||||||||
Waterberg complex | ||||||||||||||
Grootegeluk mine9 (OC) (commercial market) 100% attributed to Exxaro2 |
19+ | Proved | 2 034 | 3.0 | 126 | 776 | 58 | 1 682 | 3.0 | 109 | 689 | 39 | 21 | |
Probable | 550 | 3.0 | 37 | 191 | 6 | 898 | 3.0 | 58 | 368 | 21 | (39) | |||
Total | 2 584 | 3.0 | 163 | 967 | 64 | 2 580 | 3.0 | 168 | 1 057 | 59 | – | |||
Inferred Resources inside LoMP |
73 | 137 | ||||||||||||
Thabametsi project (OC) (IPP market) 100% attributed to Exxaro2 |
24 | Proved | 0.0 | 0.0 | ||||||||||
Probable | 130 | 3.0 | 127 | 130 | 3.0 | 127 | – | |||||||
Total | 130 | 3.0 | 127 | 130 | 3.0 | 127 | – | |||||||
Inferred Resources inside LoMP |
0.0 | 0.0 |
● | Rounding of figures may cause computational discrepancies. |
● | Tonnages are quoted in metric tonnes and million tonnes is abbreviated as Mt. |
● | Inferred Resources inside LoMP refer to Inferred Resources considered for the LoMP. These Resources have not been converted to Reserves. |
● | Coal Reserves are quoted on a RoM Reserve tonnage basis, which represents tonnages delivered to the plant at an applicable moisture and quality basis. |
● | Saleable Reserve tonnage represents the product tonnes of coal available for sale on an applicable moisture basis. |
● | All changes more than 10% in the total Reserves of an operation are explained. |
● | Resource to Reserve modifying factors per operation are stated in the ancillary section. |
1 | Operation refers to 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 2022 only. |
3 | Locality maps are for illustrative purposes only. Detailed maps are provided in the ancillary section. |
4 | The + symbol is used in instances where the scheduled LoMP extends beyond the expiry of the mining right. In each instance, Exxaro has a reasonable expectation that the mining right will be renewed. |
5 | Export refers to export thermal coal except at Grootegeluk mine, where it refers to semi-soft coking coal suitable for the export and inland markets. |
6 | The percentage difference between 2022 reported RoM and 2021 reported RoM. Brackets signify a decrease. |
7 | The increase is the result of a change in the Resource base and an updated LoMP (45Mt) including the Rooipan area as a Probable Reserve (~31Mt). |
8 | Movement in categories reflects the change in the Resources base. |
9 | Movement in categories reflects the change in the Resources base. |
Table 11: Coal Reserve qualities
THERMAL saleable (Proved and Probable) |
METALLURGICAL saleable (Proved and Probable) |
COKING saleable (Proved and Probable) |
|||||||||||||||||
Operation | Seam/ layer |
Tonnes (Mt)1 |
CV MJ/ kg |
% VM |
% Ash |
% S |
Yield % |
Tonnes (Mt)1 |
CV MJ/ kg |
% VM |
% Ash |
% S |
Yield % |
Tonnes (Mt)1 |
CV MJ/ kg |
% VM |
% Ash |
% S |
Yield % |
Matla mine | Seam 2 | 64 | 23.1 | 23.7 | 23.3 | 0.9 | 100 | ||||||||||||
Seam 4 | 104 | 18.6 | 22.5 | 31.1 | 1.0 | 100 | |||||||||||||
Leeuwpan mine | TC2 | 10.7 | 21.2 | 18.6 | 30.2 | 1.1 | 66 | ||||||||||||
BC2 | 15.7 | 23.8 | 24.2 | 21.9 | 0.9 | 68 | 1.5 | 28.5 | 8.1 | 13.7 | 1.0 | 44 | |||||||
Mafube mine Crush and stack |
Middlings Export |
31.2 | 21.4 | 21.7 | 26.1 | 0.5 | 29 | ||||||||||||
38.6 | 26.3 | 26.4 | 13.9 | 0.4 | 36 | ||||||||||||||
13.9 | 18.6 | 20.3 | 30.0 | 0.9 | 100 | ||||||||||||||
Belfast mine | Export | 32.7 | 25.5 | 23.6 | 16.7 | 0.6 | 88 | ||||||||||||
Grootegeluk mine | All seams | 967 | 21.6 | 25.1 | 33.2 | 1.3 | 40 | 64 | 28.7 | 23.9 | 14.0 | 0.6 | 60 | 163 | 28.6 | 34.8 | 13.1 | 1.1 | 12 |
Thabametsi project3 | T1 | 64 | 12.7 | 20.0 | 53.9 | 1.1 | 98 | ||||||||||||
T2 | 63 | 11.3 | 19.0 | 55.7 | 1.0 | 98 | |||||||||||||
● | Rounding of figures may cause computational discrepancies. |
● | Volatile matter (VM), sulphur (S), ash content (ash) and gross calorific value (CV). |
● | Saleable Coal Reserve tonnage represents the product tonnes of coal available for sale on an applicable moisture and air-dried quality basis. |
1 | Saleable product tonnages are quoted in metric tonnes and million tonnes is abbreviated as Mt. |
2 | Top coal (TC) and bottom coal (BC). |
3 | Based on Thabametsi bench configuration as defined in phase 1 of the feasibility study. |