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South Africa
Greenside Mine

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 Location:
10 km SW from Emalahleni, South Africa

  Address:

Emalahleni
South Africa
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
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  • Personnel
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Overview

StageProduction
Mine TypeUnderground
Commodities
  • Coal (thermal)
Mining Method
  • Continuous
  • Bord-and-pillar
Production Start...
Mine Life2027
Greenside colliery forms part of the South African Coal Estate (SACE) complex, together with Khwezela North (formerly known as Landau) and Khwezela South (previously known as Kleinkopje).


Owners

Source: p. 29,162
CompanyInterestOwnership
Thungela Resources Limited 90 % Indirect
Ownership Tree
Thungela Resources Limited holds 90% of the Greenside Colliery in South Africa with the remaining 10% held collectively by an employee partnership plan and a community partnership plan.

Contractors

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Deposit Type

  • Sedimentary


Summary:

Greenside colliery is located in the Witbank Coalf ield where f I've coal seams are present. These consists of, from bottom, the No 1 Seam, sequentially to the No 5 Seam at the top, with inter-seam partings consisting of mainly shale or siltstone and sandstone, with thicknesses ranging between 1.5 m and 23 m. The No 4 Seam is currently the only contributor to the colliery’s export product.

The colliery is sub-divided into two distinct domains, by a major northwest, southeast trending normal fault system with a measured maximum throw of 30 m in the southeast. The throw gradually
decreases to a ~1 m throw towards the northeast. Mining has been constrained by the fault system, with development from the east and west, stopping on approaching the fault zone. Several dolerite dykes have been identif ied by drilling and mining, but the impact on mining is limited to occasional cases of poor ground conditions experienced during mining.

Surface material at Greenside consists of weathering products of the sandstones, siltstones and mudstones of the Vryheid Formation, with isolated patches of dolerite in the southwestern part of the GAR. The top layer consists of reddish-brown sandy soil, with clayey-sandy subsoil below.

Weathering generally does not extend deeper than approximately 12 m at Greenside, except where adjacent to dolerite dykes and close to surface water bodies. In these instances, weathering may reach up to 17 m below the surface. Weat ........


Mining Methods

  • Continuous
  • Bord-and-pillar


Summary:

Greenside is an underground colliery using mechanised bord and pillar mining to exploit the coal within the GAR. There are five CM sections, all currently in the northwestern part of the mine. The three coal preparation plants produce an export-grade product that is sold through the RBCT. A domestic product is derived from recovering MRD material and blending it with some of the primary product discard material; this is sold into the domestic market via third parties.

The practical mining height ranges between 2.8m and 4.5m. The roof conditions are generally good and subsidence protection and undermining of surface structures are well managed.

Mining equipment used underground includes CMs, shuttle cars, roof bolters and a series of conveyor systems. Mining activities are further supported by the required ancillary equipment. Currently two incline shafts are used to access the underground workings.

The main target seam is the No 4 Seam as the No 5, No 2 and No 1 Seams were mined previously. Pillar coal remains and may be considered a resource in the future, provided suitable studies are conducted to demonstrate viability. Future mining will move to the southeast into East Block, where the coal is of somewhat lower quality and reduced thickness.

The first cut-off parameter used is a minimum mining height of 2.5 m, governed by the restriction on the mining equipment (CMs). The minimum roof depth cut off is set at 20 m to surface to av ........


Crushing and Grinding


Processing

Flow Sheet: Subscription required

Summary:

- subscription is required.


Production:

CommodityUnits2022202120202019201820172016
Coal (thermal) Mt  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required4.53.83.9
All production numbers are expressed as clean coal.
Subscription required - Subscription is required.

Operational Metrics:

Metrics202220212020201920182017
Coal tonnes mined  ......  Subscription required  ......  Subscription required4,422 kt of ROM coal4,974 kt of ROM coal5,057 kt of ROM coal4,870 kt of ROM coal
Subscription required - Subscription is required.

Reserves at December 31, 2022:

CategoryOreTypeTonnage CommodityMarketable Coal
Proven 15.9 Mt Coal (thermal) 9.3 Mt
Probable 0.9 Mt Coal (thermal) 0.4 Mt
Probable Mineral Residue (MRD) 2.4 Mt Coal (thermal) 0.8 Mt
Proven & Probable 16.8 Mt Coal (thermal) 9.7 Mt
Proven & Probable Mineral Residue (MRD) 2.4 Mt Coal (thermal) 0.8 Mt
Measured 8.8 Mt Coal (thermal)
Indicated 4.5 Mt Coal (thermal)
Measured & Indicated 13.3 Mt Coal (thermal)
Inferred 5.3 Mt Coal (thermal)

Commodity Production Costs:

CommodityUnits202220212020201920182017
Cash costs (sold) Coal (thermal) ZAR  ......  Subscription required  ......  Subscription required
Cash costs Coal (thermal) ZAR  ......  Subscription required 567 / t   617 / t  
Total cash costs (sold) Coal (thermal) ZAR  ......  Subscription required  ......  Subscription required  ......  Subscription required
Subscription required - Subscription is required.

Financials:

Units202220212020201920182017
Capital expenditures M ZAR  ......  Subscription required  ......  Subscription required  ......  Subscription required
Revenue M ZAR  ......  Subscription required  ......  Subscription required 2,874   2,891  
Subscription required - Subscription is required


Water Supply
Source: Subscription required

- subscription is required.


Heavy Mobile Equipment as of December 31, 2020:
HME TypeModelSizeQuantityLeased or
Contractor
Bolter ....................... Subscription required Leased
Continuous Miner ....................... Subscription required ....................... Subscription required Leased
Continuous Miner ....................... Subscription required ....................... Subscription required Leased
Continuous Miner ....................... Subscription required ....................... Subscription required Leased
Load-Haul-Dump (LHD) ....................... Subscription required Leased
Shuttle car 20 t ....................... Subscription required Leased
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Dec 31, 2020
....................... Subscription required ....................... Subscription required Subscription required Jun 9, 2023
....................... Subscription required ....................... Subscription required Subscription required Jun 12, 2023
Subscription required - Subscription is required.

Staff:

EmployeesContractorsTotal WorkforceYear
Subscription required 2021
Subscription required Subscription required Subscription required 2020
Subscription required Subscription required Subscription required 2019
Subscription required Subscription required Subscription required 2018
Subscription required Subscription required Subscription required 2017

Corporate Filings & Presentations:

DocumentYear
Environmental Assessment 2022
Integrated Report 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
Annual Report 2018
Year-end Mineral Reserves 2018
Annual Report 2017
Year-end Mineral Reserves 2017
Annual Report 2016
Year-end Mineral Reserves 2016
Annual Report 2015
Environmental Assessment 2015
Year-end Mineral Reserves 2015
Subscription required - Subscription is required.

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