Overview
Stage | Production |
Mine Type | Open Pit |
Commodities |
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Mining Method |
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Production Start | ... |
Nndanganeni Colliery already has an existing opencast pit with associated mining infrastructure. The proposed void / pit extension will allow for the continuation of the box cut opencast mining with a roll-over rehabilitation sequence.
The area is located in the Witbank Coal Field. This extension area is preferred due to the shallow nature of the coal reserve and its accessibility via the existing highwall in the opencast where mining is currently taking place. |
Source:
p. 8
Ndanganeni Colliery holds a mining right for coal in certain portions of the Farm Kopermyn 435 JS in the Middelburg district of Mpumalanga province, as per the Mineral and Petroleum Resources Development Act, 2002. Sumo Colliery SA (Pty) Ltd previously held a mining license for coal on a different portion of the same farm. Ndanganeni Colliery has applied to include two additional portions of the same farm into their mining right and environmental management plan through an amendment under section 102 of the MPRDA, which has been granted as of May 20, 2019.
Sumo Colliery previously held a mining license for coal on Portion 12 and Portion 20 of Farm Kopermyn 435 JS in Mpumalanga province. The license was issued on 15 September 2000 and covered 88.53 hectares. Portion 23 was later created by subdivision and falls within the mining boundary authorized by the license, where coal washing activities take place.
Contractors
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Summary:
The Nndanganeni extension is underlain by rocks from the Karoo Supergroup. The site is also situated in the Witbank Coalfields which is the most important coal-producing coalfields in South Africa. Five coal seams exist in the coalfield, but not all are economically viable. These coal seams are hosted in Vryheid Formation the middle Ecca Group sediments. The number 1 seam is the lowest or deepest while the 5 seam is the uppermost coal seam. The number 2 and 4 seams are the most exploited throughout the Witbank Coalfields.
The Karoo Supergroup mainly consists of sedimentary successions of sandstone, shale and coal. The Ecca Group is underlain by the Dwyka Formation which consists of tillites and diamictites. Geological features such as dykes (dolerite intrusions) and faults are commonly found in the coalfield. The dolerite intrusions typically act as groundwater flow barriers due to their low permeability, while the contact zone of the intrusions acts as flow pathways due to cracks and faults leading to higher flow rates along these contact zones.
In the Nndanganeni project area, the Vryheid Formation directly overlies the Damwal Formation of the Rooiberg Group (Bushveld Complex). The Dwyka Group is absent or not well developed. As the Vryheid Formation pinches out in the study area, the thickness of the formation is only several tens of meters. Felsitic rocks of the Damwal Formation are present at surface where the Vryheid Formation has been eroded by lo ........
Summary:
The Nndanganeni Colliery consists of an opencast mining pit.
Opencast mining using the truck and shovel lateral sequential rollover mining method will be undertaken. Mining will commence from the initial box cut. A haul road that will be extended from the nearby existing road will be used as access to the mining area.
The soft overburden will be removed by mechanical methods. The hard overburden will be drilled and blasted and then removed by mechanical methods. The coal will be drilled and blasted prior to removal.
Replacement of overburden materials into the mining pit will be according to the following sequence:
1. Placement of hard overburden at base of pit;
2. Placement of soft overburden; and
3. Final cover of topsoil (minimum 500 mm).
Source:
Summary:
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Production:
Commodity | Units | 2022 * | 2021 * |
Coal (thermal)
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Mt
| ...... * | ...... |
All production numbers are expressed as ROM coal.
* Average annual production reported in 2021
Mine Management:
Job Title | Name | Profile | Ref. Date |
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Oct 10, 2023
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Corporate Filings & Presentations:
Document | Year |
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2022
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2022
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2022
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Press Release
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2021
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- Subscription is required.
- Subscription is required.