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Australia
Grosvenor Mine

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 Location:
4.61 km NW from Moranbah, Queensland, Australia

  Address:
Shop 16, Moranbah Shopping Fair - Saint Francis Drive
Moranbah
Queensland, Australia
4744
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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 (metallurgical)
Mining Method
  • Longwall
Production Start...
Mine Life15 years (as of Jan 1, 2021)
On 21 February 2022, Anglo American announced the safe restart of its Grosvenor mining operation in Queensland, Australia.


Owners

Source: p. 97,231,
CompanyInterestOwnership
JFE Mineral Co., Ltd. 0.5 % Indirect
Shinsho Australia Pty. Ltd. 0.5 % Indirect
Ns Resources Australia Pty Ltd 1.25 % Indirect
Mitsui & Co., Ltd. 4.75 % Indirect
Nippon Steel Australia Pty Ltd. 5 % Indirect
Anglo American plc. 88 % Indirect
On 18 December, 2020, Anglo American completed the equalisation of ownership across its integrated metallurgical coal operations at Moranbah North and Grosvenor in Queensland, Australia.

The ownership structure of Moranbah North has been replicated at Grosvenor, through the sale of a 12% interest in the Grosvenor mine to the same consortium of Japanese companies which hold an equivalent interest at Moranbah North (being Nippon Steel Corporation, Mitsui & Co., Ltd, Nippon Steel Trading Corporation, Shinsho Corporation and JFE Mineral Co., Ltd).

88% Anglo American, 5% Nippon Steel, 4.75% Mitsui Coal, 1.25% NS Resources 0.5% Shinsho Australia, and 0.5% JFE Mineral.

Contractors

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Deposit Type

  • Sedimentary


Summary:

Underground coal mining targets coal seams at various depths. Grosvenor’s target seam is the Goonyella Middle (GM) seam. The depth of cover of the GM seam across the Grosvenor site varies from 100 to 500 metres, with depth increasing toward the north-north-east of the mine plan. The thickness of the GM seam varies from four to six metres. 21 The seam gas composition is predominantly methane (more than 95%).

The GM seam is located within the Moranbah Coal Measures, the thickness of which ranges from 250 to 300 metres in the Grosvenor area.The Moranbah Coal Measures comprise nine coal seams and their associated splits. They are, in ascending order, the Goonyella Lower, Dysart Rider, Harrow Creek Lower, GM, P, Goonyella Rider, Goonyella Upper, QB and QA seams. The Moranbah Coal Measures also contain a tuffaceous marker bed known as the P-Tuff between the GM and P seams.

Above the Moranbah Coal Measures lies the Fort Cooper Coal Measures, the base of which is the Fairhill seam. Sediments overlying the Fort Cooper Coal Measures are predominantly comprised of sandstone, claystone, basalt, gravel and clays.


Mining Methods

  • Longwall


Summary:

Grosvenor Mine is an underground longwall mine operation.

Grosvenor comprises two mining series: the eastern 100 series and the western 200 series.27 LW 101 was the first longwall in the eastern 100 series.

The 100 series longwall blocks were designed with two headings per gateroad, with the gateroad lengths varying from approximately 1.1 to 6.3 kilometres in length.

Longwall panels average approximately four kilometres in length and are approximately 300 metres wide. At Grosvenor, the longwall blocks are formed by developing two parallel roadways, known as gateroads, on either side of the proposed block. Each set of gateroads is joined every 125 metres with cross accesses called cut-throughs. The gateroads on one side of the block, called the maingate roadways, allow transportation of workers to the longwall face, the conveying of production coal, and the supply of intake ventilation. The gateroads defining the other side of the longwall block are called the tailgate roadways, and are chiefly used to carry the return air from the longwall face back to the main ventilation shaft.

At Grosvenor, coal has been typically cut by the shearer using a bi-directional cutting method, with approximately one metre of advance per shear. The extraction height ranges from 3.8 metres to 4.7 metres.


Crushing and Grinding


Processing

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Summary:

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Production:
Production decreased principally due to the suspension of longwall operation at Grosvenor since May 2020 following the underground gas incident.

CommodityUnits2021202020192018201720162015
Coal (metallurgical) t  ......  Subscription required  ......  Subscription required  ......  Subscription required3,763,5002,067,2001,759,000499,800
All production numbers are expressed as clean coal.
Subscription required - Subscription is required.

Operational Metrics:

Metrics2019
Coal tonnes mined 7.6 Mt of ROM coal

Reserves at December 31, 2021:

CategoryTonnage CommodityMarketable Coal
Proven 49 Mt Coal (metallurgical) 33.9 Mt
Probable 55.5 Mt Coal (metallurgical) 36.7 Mt
Proven & Probable 104.5 Mt Coal (metallurgical) 70.7 Mt
Measured 46.4 Mt Coal (metallurgical)
Indicated 248.1 Mt Coal (metallurgical)
Measured & Indicated 294.5 Mt Coal (metallurgical)
Inferred 28.9 Mt Coal (metallurgical)

Commodity Production Costs:

CommodityUnits2019
Total cash costs Coal (metallurgical) USD  ......  Subscription required



Heavy Mobile Equipment:
HME TypeModelQuantityLeased or
Contractor
Ref. Date
Continuous Miner ....................... Subscription required Nov 12, 2019
Drill ....................... Subscription required ....................... Subscription required Leased Nov 30, 2018
Longwall mining unit ....................... Subscription required Nov 12, 2019
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Apr 11, 2022
....................... Subscription required ....................... Subscription required Subscription required Apr 11, 2022
....................... Subscription required ....................... Subscription required Subscription required Apr 11, 2022
....................... Subscription required ....................... Subscription required Subscription required Apr 11, 2022
....................... Subscription required ....................... Subscription required Subscription required Apr 11, 2022
....................... Subscription required ....................... Subscription required Subscription required Apr 11, 2022
Subscription required - Subscription is required.

Staff:

EmployeesContractorsTotal WorkforceYear
Subscription required 2020
Subscription required Subscription required Subscription required 2019
Subscription required Subscription required Subscription required 2018

Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
Annual Report 2018
Other 2018
Other 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
Fact Sheet 2015
Year-end Mineral Reserves 2015
Other 2014
Other 2000
Subscription required - Subscription is required.

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