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South Africa

New Denmark Mine

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New Denmark Mine

Location: 24 km NE from Standerton, South Africa

Address:

Farm Slagkraal 353-IS District
Standerton
South Africa
2429

Contacts:

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Categories

Summary

Mine TypeUnderground
StatusActive
Commodities
  • Coal (thermal)
Mining Method
  • Continuous
  • Longwall
  • Bord-and-pillar
  • Pillar extraction
Production Start... Lock
Mine Life... Lock
SnapshotThe New Denmark is one of South Africa’s deepest coal mining operations.

The New Denmark mine provides thermal coal to Eskom’s Tutuka power station.

Owners

SourceSource
CompanyInterestOwnership
Seriti Resources Holdings Proprietary Ltd. 90 % Indirect
Seriti Power (Pty) Ltd. (operator) 100 % Direct
Seriti Power (Pty) Ltd. owns and operates the New Denmark mine.

Seriti holds a 90% interest in Seriti Power (Pty) Ltd., while an Employee Trust and Community Trust each hold a 5% interest.

Seriti Resources Holdings (Pty) Ltd.) is a broad-based, 92% black-owned and controlled South African energy company. It is co-owned by Masimong Group Holdings (Pty) Ltd, Thebe Investment Corporation (Pty) Ltd, Zungu Investments Company (Pty) Ltd, Community Investment Holdings (Pty) Ltd, and Coalzar (Pty) Ltd.

Contractors

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SourceSource

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.

Reserves

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Mining Methods

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Heavy Mobile Equipment

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Comminution

Crushers and Mills

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SourceSource

Processing

Summary:

The Coal Processing Plant is basically comprised of a Crushing Plant without screening. The Crushing Plant is located between the North and Central Shaft areas and is adjacent to the Coal Stockyard.

Approximately 4Mtpa of coal, with an average calorific value of 22.5 MJ/kg (on a moisture free basis) is produced for Eskom’s 3 600 megawatt (“MW”) Tutuka Power Station.

Commodity 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.
CommodityUnits202520242023202220202019201720162015
Coal (thermal) Mt  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe3.63.42.52.8
All production numbers are expressed as ROM coal. * Production numbers were reported as 'Average annual'

Operational metrics

Metrics20252024202320222019201720162015
Coal tonnes mined  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe3,617,000 t3,361,000 t2,547,400 t2,838,300 t

Production Costs

Commodity production costs have not been reported.

Personnel

Mine Management

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Oct 20, 2025
....................... Subscription required ....................... Subscription required Subscription required Oct 20, 2025
....................... Subscription required ....................... Subscription required Subscription required Oct 20, 2025

Workforce

EmployeesContractorsTotal WorkforceYear
...... Subscription required ...... Subscription required ...... Subscription required 2025
...... Subscription required ...... Subscription required ...... Subscription required 2024
...... Subscription required ...... Subscription required ...... Subscription required 2023
...... Subscription required ...... Subscription required ...... Subscription required 2022
...... 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

Aerial view:

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