Millennium Coal Mine

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Millennium Coal Mine is a proposed coal mine in Mackay, Queensland, Australia.

Location

Table 1: Project-level location details

Mine Name Location Coordinates (WGS 84)
Millennium Coal Mine Mackay, Queensland, Australia -22.029079, 148.259967 (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] – 1993 2024[1]

Table 3: Operation details

Note: The asterisk (*) signifies that the value is a GEM estimated figure.
Capacity (Mtpa) Production (Mtpa) Year of Production Mine Type Mining Method Mine Size (km2) Mine Depth (m) Workforce Size
1.9[2] 0.525[3] 2024[3] Surface[2] Open Pit 29.84[4] 60* 30*[4]

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
0[5] 2025[5] 48[5] Bowen Bituminous Met –

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
M Mining Pty Ltd [100.0%][5] Stanmore Resources Ltd [50%]; M Resources Pty Ltd [50%] Australia

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

ROM or Saleable 2017 2018 2019 2020 2021 2022 2023 2024 2025
ROM[3] 3.22[3] 3.58[3] 1.35[3] 0.4[3] – 0.47[3] 0.31[3] 0.53[3] –


Expansion/Extension

Table 7: Project status

* Added capacity of a coal mine refers to the enhancement in the mine's production capabilities beyond its initial production capacity.
Status Status Detail Project Type Project Phase Added Capacity (Mtpa)* Start Year
Proposed[6] Pre-Permit[2] Expansion[6] – 3.6[6] –

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

Millenium Coal Mine, also known as the Millenium and Mavis Downs Coal Mine is a coal mine in Mackay, Queensland, Australia.[7] Peabody Energy Australia formally operated the mine.[7] It ceased operations in May 2020. In April 2021, MetRes Pty, a joint venture of Stanmore Coal and M Resource, acquired the Millennium and Mavis Downs coal mine and appointed a subsidiary M Mining Pty as the operator.[8]

Peabody ceased production in 2020 and in 2021, the new owners opened it and converted it to an underground operation with a 1.2 million tonne capacity.[9]

In September 2025, it was reported that the Millennium Coal Mine was closed.[10]

  • Owner: MetRes Pty [Stanmore Coal (50%) and M Resources (50%)]
  • Operator: M Mining Pty
  • Location: Mackay, Queensland, Australia
  • GPS Coordinates: -22.029079, 148.259967 (exact)
  • Status: Closed (Care and Maintenance)
  • Capacity: 1.2 million tonnes per annum[9]
  • Total Resource:
  • Mineable Reserves:
  • Coal type: Bituminous (Metallurgical and PCI)
  • Mine Size:
  • Mine Type: Surface[7]
  • Mining Method: open cut
  • Start Year: 1993[7]
  • 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://web.archive.org/web/20260626200253/https://ieefa.org/resources/queenslands-coalmines-open-and-shut-case-royalties-versus-harsh-realities. Archived from the original on 26 June 2026. {{cite web}}: Missing or empty |title= (help)
  2. ↑ 2.0 2.1 2.2 https://web.archive.org/web/20260701062117/https://www.qld.gov.au/environment/management/environmental/eis-process/projects/completed/millennium-expansion-project. Archived from the original on 01 July 2026. {{cite web}}: Check date values in: |archive-date= (help); Missing or empty |title= (help)
  3. ↑ 3.00 3.01 3.02 3.03 3.04 3.05 3.06 3.07 3.08 3.09 https://web.archive.org/web/20260626195933/https://www.data.qld.gov.au/dataset/coal-industry-review-statistical-tables/resource/bab54159-f38b-4e6f-8652-4b04bca29139. Archived from the original on 26 June 2026. {{cite web}}: Missing or empty |title= (help)
  4. ↑ 4.0 4.1 (PDF) https://www.peabodyenergy.com/Peabody/media/MediaLibrary/Fact%20Sheets/2020-Fact-sheet_Surface_Millennium.pdf. {{cite web}}: Missing or empty |title= (help)
  5. ↑ 5.0 5.1 5.2 5.3 (PDF) https://stanmore.au/wp-content/uploads/2026/04/SMR-Annual-Report-2025_Digital_Single-Page.pdf. {{cite web}}: Missing or empty |title= (help)
  6. ↑ 6.0 6.1 6.2 (PDF) https://peassetstorage.blob.core.windows.net/assets/files/operations/australia/millennium/expansion/chapter_1_introduction.pdf. {{cite web}}: Missing or empty |title= (help)
  7. ↑ 7.0 7.1 7.2 7.3 Millenium Mine, company website, accessed June 16, 2020
  8. ↑ Millennium and Mavis Downs Mine, Mining Data Solution, accessed September 2021
  9. ↑ 9.0 9.1 "Major Mines & Projects | Millennium and Mavis Downs Mine". miningdataonline.com. Retrieved 2023-02-21.
  10. ↑ [https://ieefa.org/resources/queenslands-coalmines-open-and-shut-case-royalties-versus-harsh-realities "Insights Coal Energy Transition & Policy Australia Queensland Queensland’s coalmines: An open and shut case of royalties versus harsh realities,"] IEEFA, September 24, 2025