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Australia
Kestrel Mine

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 Location:
37 km NE from Emerald, Queensland, Australia

  Address:
Lilyvale Road, PO Box 1969
Emerald
Queensland, Australia
4720
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Financials
  • Fleet
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeUnderground
Commodities
  • Coal (hard coking)
  • Coal (thermal)
Mining Method
  • Longwall
  • Continuous
  • Bord-and-pillar
Production Start...
Mine Life2050


Owners

Source: p. 20
CompanyInterestOwnership
Mitsui Investment Pty Ltd. 20 % Indirect
PT Adaro Energy Tbk 38.4 % Indirect
EMR Capital Group 41.6 % Indirect
Kestrel Coal Resources Pty Ltd. (operator) 80 % Direct
EMR Capital Ltd (EMR) acquired Rio Tinto’s 80% interest in the Kestrel Coal Mine (Kestrel) in August 2018 to jointly manage and operate Kestrel’s mine. Upon completion of the deal, ownership stakes in Kestrel consisted of Kestrel Coal Resources Pty Ltd (80%) and Mitsui Coal Australia (20%). Kestrel Coal Resources Pty Ltd is a joint venture company formed by EMR (52%) and PT Adaro Energy Tbk (48%).

Contractors

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Deposit Type

  • Sedimentary


Summary:

The Kestrel Mine lies on the western limb of the gently dipping Talagai Syncline, which plunges southwest between the Capella Block to the north west and the Comet Ridge to the east resulting in an overall regional dip of the stratigraphic sequence to the south and south-east.

At surface an isolated pocket of German Creek Formation (Pud) outcrops near the Kestrel Mine, with the remaining tenement area covered by unconformably overlying Cainozoic aged volcanics and sediments. Tertiary aged Minerva Hills Volcanics (Tr) comprising olivine basalt, trachy basalt, minor agglomerate and tuff are eroded and deposited over the Nogoa River fluvial system as undifferentiated (Cz) soil, sand and gravels and Quaternary aged alluviums (Qa).

The recent Tertiary sequence averages 65 m in thickness and ranges up to 110 m. As many as eight distinct basalt flows can be recognised in the Kestrel Mine area. These are often interbedded or underlain by clay and water bearing sand/gravel beds. The main Tertiary aquifers are the basalts and the basal sand/gravel beds. Airlift water flows of >30 l/s have been measured from these aquifers.


Mining Methods

  • Longwall
  • Continuous
  • Bord-and-pillar


Summary:

Kestrel Mine is an underground mine which uses the longwall and continuous miner method to mine high quality coking and thermal coal for export.

Longwall mining is a technique which has revolutionised underground coal mining, enabling large scale and efficient extraction of coal in a cost effective and relatively safe manner when compared with other techniques such as board and pillar mining. Mechanical shearers are employed on the longwall panel, traversing across a face cutting coal with the roof supported behind the shearer with hydraulic supports. Cut coal is then transported to surface by a conveyor network. As the mining face advances the hydraulic roof supports are brought forward, the resultant goaf collapsing as earlier mined faces which are no longer supported subside. Longwall mining requires relatively benign geological conditions to be economically viable as set up costs for panel layouts are both time consuming and expensive, with the equipment unable to make radical changes in orientation should unexpected geological conditions be intersected.

Continuous mining uses traditional bord and pillar approach of cutting room areas of coal and leaving remnant pillars behind to support the roof and maintain stability with the overlying strata. Coal is collected by shuttle cars and transported to a conveyor for dispatch to surface. This technique enables greater flexibility in areas of more complex geology, although at the expense of lower recovery ........


Crushing and Grinding


Processing

Source: Subscription required

Summary:

- subscription is required.


Production:

CommodityUnits2022202120202019201820172016
Coal (metallurgical & thermal) Mt  ......  Subscription required ^  ......  Subscription required  ......  Subscription required  ......  Subscription required
Coal (thermal) kt  ......  Subscription required  ......  Subscription required  ......  Subscription required
Coal (hard coking) kt  ......  Subscription required  ......  Subscription required
All production numbers are expressed as clean coal. ^ Guidance / Forecast.
Subscription required - Subscription is required.


Reserves at September 1, 2021:

CategoryTonnage Commodity
Proven 39.4 Mt Coal (metallurgical & thermal)
Probable 150.5 Mt Coal (metallurgical & thermal)
Proven & Probable 189.9 Mt Coal (metallurgical & thermal)
Measured 54.7 Mt Coal (metallurgical & thermal)
Indicated 350.8 Mt Coal (metallurgical & thermal)
Inferred 25 Mt Coal (metallurgical & thermal)
Total Resource 430.5 Mt Coal (metallurgical & thermal)

Financials:

Units202120202019
After-tax Income M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required
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Pipelines
TypeMaterialDiameterLengthDescription


Heavy Mobile Equipment as of December 31, 2020:
HME TypeModelSize
Continuous Miner ....................... Subscription required
Shearer ....................... Subscription required
Shuttle car 15 t
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Mar 10, 2023
....................... Subscription required ....................... Subscription required Subscription required Mar 10, 2023
....................... Subscription required ....................... Subscription required Subscription required Mar 10, 2023
....................... Subscription required ....................... Subscription required Subscription required Mar 10, 2023
....................... Subscription required ....................... Subscription required Subscription required Nov 21, 2022
....................... Subscription required ....................... Subscription required Subscription required Mar 10, 2023
Subscription required - Subscription is required.

Staff:

EmployeesContractorsTotal WorkforceYear
Subscription required Subscription required Subscription required 2021
Subscription required 2020

Corporate Filings & Presentations:

DocumentYear
Corporate Presentation 2023
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
Annual Report 2018
Annual Report 2017
Annual Report 2016
Annual Report 2015
Technical Report 2015
Annual Report 2014
Press Release 2013
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