Overview
| Stage | Production |
| Mine Type | Open Pit |
| Commodities |
- Coal (thermal)
- Coal (metallurgical)
|
| Mining Method |
|
| Production Start | ...  |
| Mine Life | 2031 |
Grootegeluk is one of the largest integrated mining and beneficiation operations globally, running the largest coal beneficiation complex, and the only producing mine in the coal-rich Waterberg, adjacent to Eskom’s Matimba and Medupi power stations. |
Source:
p. 18,19
Contractors
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Summary:
Grootegeluk is located in the Waterberg coalfield and the coal seams are from the Volksrust and Vryheid formations.
The upper part of the coal deposit, the Volksrust Formation (approximately 60m thick) is classified as a thick interbedded seam deposit type, comprising intercalated mudstone or carbonaceous shale and bright coal layers. The Vryheid Formation (approximately 55m thick) forms the lower part of the coal deposit and comprises carbonaceous shale and sandstone with interbedded dull coal seams varying in thickness from 1.5m to 9m. It is therefore classified as a multiple seam deposit type.
These coal seams are subdivided into 11 coal zones which are further divided into separate coal and non-coal samples for analysis. A total of 77 samples are analysed per full succession drill hole. The Volksrust Formation consists of 30 coal samples and 30 non-coal samples whereas the Vryheid Formation consists of 13 coal samples and four non-coal samples for the Vryheid Formation.
The Zoetfontein fault forms the boundary of the Waterberg coalfield in the north while the Eenzaamheid fault forms the boundary in the south. The Daarby fault, with a throw of some 350m, divides the coalfield into a deep north-eastern portion and a shallow south-western portion. The first fresh coal in the shallow south-western portion is on average 20m below surface. The lowermost coal seam (Zone 1) occurs at a depth of about 130m in the shallow portion of the coalfield b ........
Summary:
Grootegeluk comprises one open-pit mine, which includes three overburden benches, 10 RoM benches and four interburden benches. A series of parallel benches are advanced progressively across the deposit via a process of drilling, blasting, loading and hauling with truck-and-shovel fleets. RoM is transported to the Grootegeluk beneficiation complex via haul trucks and in-pit crushing and conveying systems.
Source:
Summary:
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Reserves at December 31, 2022:
Thickness cut-off and extraction height considerations: Opencast =0.5m.
Quality cut-offs: =65% ash Volksrust Formation coal, =50% ash Vryheid Formation coal.
| Category | Tonnage | Commodity | Marketable Coal |
|
Proven
|
2,034 Mt
|
Coal (metallurgical & thermal)
|
960 Mt
|
|
Probable
|
550 Mt
|
Coal (metallurgical & thermal)
|
234 Mt
|
|
Proven & Probable
|
2,584 Mt
|
Coal (metallurgical & thermal)
|
1,194 Mt
|
|
Measured
|
3,039 Mt
|
Coal (metallurgical & thermal)
|
|
|
Indicated
|
967 Mt
|
Coal (metallurgical & thermal)
|
|
|
Inferred
|
178 Mt
|
Coal (metallurgical & thermal)
|
|
|
Total Resource
|
4,184 Mt
|
Coal (metallurgical & thermal)
|
|
Financials:
| | Units | 2020 |
|
Sustaining costs
|
M ZAR
| ...... |
Source:
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| HME Type | Model | Quantity | Status | Ref. Date |
|
Drill
|
.......................
|
|
Existing
|
Jul 12, 2022
|
|
.......................
|
.......................
|
.......................
|
Proposed
|
Dec 31, 2021
|
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Corporate Filings & Presentations:
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