Optimum Coal Mine

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Optimum Coal Mine is a mothballed coal mine in Pullens Hope, Nkangala, Mpumalanga, South Africa.

Location

Table 1: Project-level location details

Mine Name Location Coordinates (WGS 84)
Optimum Coal Mine Pullens Hope, Nkangala, Mpumalanga, South Africa -26.0048466, 29.6114906 (exact)

The map below shows the exact location of the coal mine:

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Project Details

Table 2: Project status

Status Status Detail Opening Year Closing Year
Mothballed[1] Care and Maintenance[1] – –

Table 3: Operation details

Capacity (Mtpa) Production (Mtpa) Year of Production Mine Type Mining Method Mine Size (km2) Mine Depth (m) Workforce Size
12[2] – – Underground & Surface[3] Mixed[3] 380[3] 150[3] 2000[3]

Table 4: Coal resources and destination

Total Reserves (Mt) Year of Total Reserves Recorded Total Resources (Mt) Coalfield Coal Type Coal Grade Primary Consumer/ Destination
114 – 650[3] Witbank Bituminous Thermal Coal Plant

Table 5: Ownership and parent company

Note: To access more comprehensive data on energy ownership, please visit the Global Energy Ownership Tracker.
Owner Parent Company Headquarters
Liberty Mine Services [100.0%][4][3][5][6] Liberty Coal South Africa

Table 6: Historical production (unit: million tonnes per annum)

ROM or Saleable 2017 2018 2019 2020 2021 2022 2023 2024 2025
– – – – – – – – – –

Note: The above sections were automatically generated and are based on data from the Global Coal Mine Tracker August 2026 release.

Ownership Tree

This ownership tree is part of the Global Energy Ownership Tracker, a project of Global Energy Monitor.

Background

The Optimum Coal Mine is a surface and underground coal mine caught in the midst of bankruptcy and business rescue proceedings.

The mine has been put on care and maintenance on several occasions (including in 2019 and again in 2020). While its current operational state is unclear, it is believed to be mothballed. Records show that the Optimum mine has been operating since at least 2002, when it was recorded as having an annual capacity of 13.1 million tonnes.[7]

In 2008, BHP Billiton Energy Coal South Africa Ltd sold Optimum mine to Optimum Coal Holdings Ltd.[8] In 2011, Glencore moved to take a controlling stake in Optimum Holdings.[9]

In August 2015, Glencore placed Optimum Coal’s mining operations into bankruptcy proceedings; the operations were sold in December to Tegeta Exploration and Resources (Pty) Ltd. According to a 2015 US Geological Survey (USGS) Minerals Yearbook report, production was likely to shut down in 2016.[10]

In February 2018, Optimum mine went into business rescue after its owners, the India-born Gupta family, fled the country to evade prosecution over their alleged involvement in widespread corruption.[11] Later that year, all mine employees were placed on special leave and their employment contracts were eventually terminated. By May 2019, the mine was placed under care and maintenance.[12] It recommenced mining operations in November 2019 with a reduced number of employees, however, as of July 2020, it was once again put on care and maintenance.[12][13] It is unclear whether or not the mine is currently operational.

The latest proceedings in the business rescue case, reported on July 30, 2020, indicate that a group of Optimum Coal Mine creditors are urging the Pretoria High Court to consider an application to liquidate the coal mine. Liquidation would imply the final death of Optimum as the mine would formally shut down, according to a Business Maverick article.[13] However, the Optimum rescue practitioners oppose the liquidation, because they have indicated that there are at least three potential buyers for the coal mine. These buyers would prevent the mine from shutting down entirely.[13]

In 2022, news outlets reported that allegations have emerged that Optimum Coal Mine has been used as an "'industrial-strength' money-laundering machine"[14][15]

  • Operator: Westdawn Investments/JIC Mining Services[13]
  • Owners: Optimum Coal Holdings (owned by Tegeta Exploration and Resources (Pty) Ltd.)[13]
  • Location: Near Pullens Hope, Municipality of Steve Tshwete, District of Nkangala, in Mpumalanga Province.
  • GPS Coordinates: -26.0048466, 29.6114906 (exact)
  • Status: Mothballed
  • Production Capacity: 11 Mtpa[10]
  • Total Resource:
  • Mineable Reserves: 114 Mt
  • Coal Type: Bituminous (Thermal)
  • Mine Size:
  • Mine Type: Surface and underground
  • Start Year:
  • Source of Financing:

Articles and Resources

Additional data

To access additional data, including an interactive map of world coal mines, a downloadable dataset, and summary data, please visit the Global Coal Mine Tracker on the Global Energy Monitor website.

References

  1. ↑ 1.0 1.1 https://www.argusmedia.com/en/news-and-insights/latest-market-news/2533665-liberty-coal-agrees-to-optimum-forfeiture-deal. {{cite web}}: Missing or empty |title= (help)
  2. ↑ https://www.coalage.com/departments/breaking-news/liberty-coal-recommissions-dragline-at-optimum-colliery/. {{cite web}}: Missing or empty |title= (help)
  3. ↑ 3.0 3.1 3.2 3.3 3.4 3.5 3.6 https://www.liberty-coal.com/our-business/. {{cite web}}: Missing or empty |title= (help)
  4. ↑ https://www.liberty-coal.com/2025/11/14/liberty-coal-announces-new-phase-of-operations-at-optimum/. {{cite web}}: Missing or empty |title= (help)
  5. ↑ https://www.liberty-coal.com/about-us/. {{cite web}}: Missing or empty |title= (help)
  6. ↑ https://num.org.za/News-Reports-Speeches/ArticleID/1296/NUM-welcomes-the-settlement-agreement-reached-over-Optimum-Coal-Mine. {{cite web}}: Missing or empty |title= (help)
  7. ↑ George J. Coakley, "THE MINERAL INDUSTRY OF SOUTH AFRICA," USGS, 2002.
  8. ↑ "2009 Minerals Yearbook: South Africa," USGS, 2009.
  9. ↑ "Glencore moves to buy South Africa's Optimum Coal," Reuters, 1 Sept. 2011.
  10. ↑ 10.0 10.1 "2015 Minerals Yearbook: South Africa," USGS, 2015.
  11. ↑ "Optimum coal mine rescue plan envisages R2.4bn sale," Argus Media, 24 April 2018.
  12. ↑ 12.0 12.1 Latest Developments at the Optimum Coal Mine, Department of Mineral Resources & Energy, 23 June 2020.
  13. ↑ 13.0 13.1 13.2 13.3 13.4 Ray Mahlaka, "Creditors throw their weight behind the liquidation of Gupta-linked Optimum Coal Mine," Business Maverick, 30 July 2020.
  14. ↑ Lisa Steyn, NPA: Guptas used Optimum Coal Mine as 'industrial-strength' money-laundering machine, News 24, 9 March 2022.
  15. ↑ Ethan van Diemen, "Tegeta acquired Optimum Coal Mine ‘through succession of criminal acts’, NPA argues in forfeiture application", Daily Maverick, 3 July 2022.