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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
  • Fleet
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeUnderground
Commodities
  • Coal (thermal)
Mining Method
  • Bord-and-pillar
Production Start...
Mine Life6 years (as of Jan 1, 2021)
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. 1
CompanyInterestOwnership
Thungela Resources Limited 90 % Indirect
Ownership Tree
Thungela Resources Limited holds 90% of the thermal coal operations in South Africa with the remaining 10% held collectively by an employee partnership plan and a community partnership plan.

Anglo American plc announces the completion of the demerger of its thermal coal operations in South Africa. Thungela Resources Limited will start trading today through a primary listing on the Johannesburg Stock Exchange under the abbreviated name “Thungela” (Alpha code "TGA”), and a standard listing on the London Stock Exchange (ticker symbol “TGA”).

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

  • 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 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 avoid potential weathering of the coal seam.

The following general criteria were used to design the layouts:
• Primary developments: 9 - 10 roads per panel;
• Secondary developments: 9 - 10 roads per panel;
• 15 to 16 m centres for square bord and pillar sections– depending on safety factors and width-to height ratios, a minimum 16 m centre is used. This suits the advance of the CM in terms of cutting depth without support and minimi ........


Crushing and Grinding


Processing

Flow Sheet: Subscription required

Summary:

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Production:

CommodityUnits202120202019201820172016
Coal (thermal) Mt  ......  Subscription required  ......  Subscription required  ......  Subscription required4.53.83.9
All production numbers are expressed as clean coal.
Subscription required - Subscription is required.

Operational Metrics:

Metrics20212020201920182017
Coal tonnes mined  ......  Subscription required  ......  Subscription required4,974 kt of ROM coal5,057 kt of ROM coal4,870 kt of ROM coal
Subscription required - Subscription is required.

Reserves at December 31, 2021:

CategoryOreTypeTonnage CommodityMarketable Coal
Proven 25 Mt Coal (thermal) 15.8 Mt
Probable 0.1 Mt Coal (thermal) 0.1 Mt
Probable Mineral Residue (MRD) 3.3 Mt Coal (thermal) 2.4 Mt
Proven & Probable 25.1 Mt Coal (thermal) 15.9 Mt
Proven & Probable Mineral Residue (MRD) 3.3 Mt Coal (thermal) 2.4 Mt
Measured 8.1 Mt Coal (thermal)
Measured Mineral Residue (MRD) 3.1 Mt Coal (thermal)
Indicated 1.5 Mt Coal (thermal)
Measured & Indicated 9.6 Mt Coal (thermal)
Measured & Indicated Mineral Residue (MRD) 3.1 Mt Coal (thermal)
Inferred 3.8 Mt Coal (thermal)

Commodity Production Costs:

CommodityUnits20212020201920182017
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 is required.

Financials:

Units20212020201920182017
Capital expenditures M ZAR  ......  Subscription required  ......  Subscription required
Revenue M ZAR  ......  Subscription required  ......  Subscription required 2,874   2,891  
Subscription required - Subscription is required


Pipelines
TypeMaterialDiameterLengthDescription


Heavy Mobile Equipment as of December 31, 2020:
HME TypeModelSizeQuantity
Bolter ....................... Subscription required
Continuous Miner ....................... Subscription required ....................... Subscription required
Continuous Miner ....................... Subscription required ....................... Subscription required
Continuous Miner ....................... Subscription required ....................... Subscription required
Shuttle car 20 t ....................... Subscription required
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 Jul 5, 2022
....................... Subscription required ....................... Subscription required Subscription required Jul 5, 2022
....................... Subscription required ....................... Subscription required Subscription required Jul 5, 2022
....................... Subscription required ....................... Subscription required Subscription required Jul 5, 2022
Subscription required - Subscription is required.

Staff:

EmployeesContractorsTotal WorkforceYear
Subscription required 2021
Subscription required Subscription required Subscription required 2019

Corporate Filings & Presentations:

DocumentYear
................................... 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
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