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South Africa
New Denmark Mine

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 Location:
24 km NE from Standerton, South Africa

  Address:
Farm Slagkraal 353-IS District
Standerton
South Africa
2429
Phone  ...  Subscription required
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Fleet
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeUnderground
Commodities
  • Coal (thermal)
Mining Method
  • Longwall
  • Continuous
  • Bord-and-pillar
Processing
  • Crush & Screen plant
Mine Life2039


Owners

Source: p. 1,2
CompanyInterestOwnership
Seriti Resources Holdings Proprietary Ltd. 90 % Indirect
Seriti Resources Holdings Pty Ltd (‘Seriti’) is a broad based, 91% black owned and controlled South African mining company co- owned by four black anchor shareholders, Masimong Group, Thebe Investments, Zungu Investments (Zico) and Community Investment Holdings (CIH). Seriti Coal Community Employee, and Management Trusts own 10% of the Seriti Resources Holdings Pty Ltd.

Seriti, through its operating subsidiary, Seriti Coal Pty Ltd, operates three large- scale, opencast and underground thermal coal mines namely, New Vaal, New Denmark and Kriel Collieries.

Deposit Type

  • Sedimentary


Summary:

New Denmark Colliery reserves occur within the Vryheid Formation of the Ecca Group within the Karoo Sequence. Sixty boreholes have been drilled by the mine to the base of the Karoo Supergroup in the MRA from which geological information could be derived. The thickness of the sediments underlying the No. 4 coal seam varies between 50 and 300 m. The coal-bearing Ecca Group ranges in thickness from 125 - 360 m and is comprised of an upper shale-like stage, the Volksrust Shale Formation, the mainly sandy coal measure stage, the Vryheid Formation, and a locally developed lower silt to shale stage, the Pietermaritzburg Shale Formation. The Vryheid Formation sediments developed in the NDC area are similar to those occurring elsewhere in the Highveld and Witbank Coalfields and are comprised mainly of sandstone, with lesser amounts of sandstone / siltstone and mudstone.

New Denmark is mined the No. 4 Seam. The No. 4 Seam is comparatively narrow at an average height of 1.8 m, being as low as 1.6 m in places.


Mining Methods

  • Longwall
  • Continuous
  • Bord-and-pillar


Summary:

New Denmark Colliery (NDC) is an underground mine and has been operational since 1983, extracting coal through both bord-and-pillar and longwall mining methods. The coal mined at NDC is transported via conveyors, from the Central Shaft to the stockyard located at Eskom’s Tutuka Power Station. The mine comprises four main operations areas, namely Central Shaft, North Shaft, Okhozini Shaft and a Crusher Plant. Infrastructure (such as offices, workshops, etc.) has been provided at all three shafts, but the main surface operations are located at Central Shaft. The coal is transported via conveyors, from the Central Shaft and the North Shaft, to the stockyard located at Eskom’s Tutuka Power Station.

New Denmark is one of South Africa’s deepest coal mining operations, operating to a depth of 200m. It is a mechanised operation with 11 CM sections moving to 12 CM sections in FY23. The LW is in the process of being phased out of the production fleet and stopped producing in April 2021.


Crushing and Grinding


Processing

  • Crush & Screen plant

Source: Subscription required

Summary:

NDC proposes to install a pyrolysis plant to incinerate waste produced on the mine and convert the energy into electricity.


Production:
New Denmark mine was acquired from Anglo American in March 2018 by Seriti Resources Holdings Proprietary Ltd.

2018 full year production numbers have not been reported.

CommodityUnits202020192017201620152014
Coal (thermal) Mt  ......  Subscription required  ......  Subscription required3.42.52.83.8
All production numbers are expressed as ROM coal.
Subscription required - Subscription is required.

Operational Metrics:

Metrics2019
Raw coal annual capacity 5 Mt

Reserves at December 31, 2017:

CategoryTonnage Commodity
Proven 44.3 Mt Coal (thermal)
Probable 51.4 Mt Coal (thermal)
Proven & Probable 95.7 Mt Coal (thermal)
Measured & Indicated 80.5 Mt Coal (thermal)


Heavy Mobile Equipment as of August 11, 2021:
HME TypeQuantity
Continuous Miner ....................... Subscription required
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Aug 11, 2021
....................... Subscription required ....................... Subscription required Subscription required Aug 11, 2021
....................... Subscription required ....................... Subscription required Subscription required Aug 11, 2021
Subscription required - Subscription is required.

Staff:

EmployeesContractorsTotal WorkforceYear
Subscription required Subscription required 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
................................... Subscription required 2020
Annual Report 2017
Year-end Mineral Reserves 2017
Annual Report 2016
Other 2016
Year-end Mineral Reserves 2016
Annual Report 2015
Other 2015
Year-end Mineral Reserves 2015
Other 2014
Other 2013
Other 2010
Subscription required - Subscription is required.

Aerial view:

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