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Australia
Bluff Mine

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 Location:
1.7 km SE from Bluff, Queensland, Australia

  Address:
Level 7 167 Eagle Street
GPO Box 1465
Brisbane
Queensland, Australia
4000
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Fleet
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeOpen Pit
Commodities
  • Coal (metallurgical)
Mining Method
  • Truck & Shovel / Loader
Production Start...
Mine Life4 years (as of Jan 1, 2021)
Production at the Bluff commenced in Q1 2019. The mine was transitioned into care and maintenance in December 2020.

The Bluff acquisition was completed by Bowen in December 2021 and first coal was mined and shipped in June 2022.

The Ultra Low Volatile PCI I coal produced at Bluff is well regarded for its low ash, high energy and high coke replacement ratio.


Owners

Source: p. 1
CompanyInterestOwnership
Bowen Coking Coal Ltd 100 % Indirect
In October 2021, Bowen Coking Coal ("Bowen") has secured a call option and granted a put option to MACA Ltd ("MACA") to acquire the assets of the Bluff PCI Coal Mine for a A$5.0m.

On November 11, 2021 Bowen Coking Coal has exercised its call option to acquire the Bluff Mine.

Contractors

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Deposit Type

  • Sedimentary


Summary:

The major geological units present at the mine comprise the Rangal Coal Measures and the underlying Burngrove Formation, both of the Late Permian Blackwater Group. The Rangal Coal Measures, which are the upper-most Permian unit present in the Bowen Basin, are the focus of coal exploration within this region. The Burngrove Formation also contains coal seams but these are not typically of economic interest, due to their banded nature and high raw ash content.

The mine extracts three target seams (Aries, Pollux and Orion) in the Rangal coal measures at depths starting from approximately 35 metres (western side). The structural geology is characterized by steep dip and thrust faulting typically experienced in other coal mines such as Yarrabee and Jellinbah. The main characteristic of the mine are the reverse faults of the Jellinbah Thrust Belt. The westerly dipping faults range from large regional faults with displacements of up to 100 m to smaller local faults with displacements generally up to 10 m. The tertiary blanket that covers the Rangal Coal Measures ranges from 20m – 40m across the deposit. Multiple cross sections and long sections were created and for each the seam correlation and the geological interpretation was reviewed from first principles.

The coal bearing formations of interest within the project area are held within the Blackwater Group, an upper Permian package of generally uniform sandstones, mud, and siltstones, tuffaceous lithotypes an ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

A margin ranking process based on a combination of contractor truck/excavator open cut mining methods. There appears to be adequate room for all required spoil dumps and on-site infrastructure.

The Bluff opencut mine will be developed using excavators and rear dump trucks. Initially waste material will be hauled to external spoil dumps until in pit dumping can be established. Coal will be hauled to a ROM stockpile where it will be transported to nearby Cook Colliery, via road trains. Margin ranking and pit optimisation has been based upon a contractor operation.

Coal production at Bluff mine is expected to ramp up to a steady state ROM target of 80,000t to 100,000t per month, representing an annualised production rate of between 1Mtpa and 1.2Mtpa ROM over four to six years to supply the global steel industry.


Crushing and Grinding


Processing

Source: Subscription required

Summary:

- subscription is required.


Production:

CommodityUnits202120202019
Coal (metallurgical) t  ......  Subscription required  ......  Subscription required  ......  Subscription required
All production numbers are expressed as clean coal.
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Operational Metrics:

Metrics202120202019
Coal tonnes mined  ......  Subscription required  ......  Subscription required244,355 t of ROM coal
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Reserves at October 26, 2021:
The Resource estimate was constrained (cut-off) according to:
• Depth to seam floor constraints determining potential industry standard extraction method (<250m depth from topography opencut assumption);
• All seams have a raw ash value less than 50% adb;
• Seam thickness greater than 0.3m;
• down to a maximum depth of 250m below topography.

CategoryTonnage Commodity
Indicated 11.2 Mt Coal (metallurgical)
Inferred 2.3 Mt Coal (metallurgical)
Total Resource 13.5 Mt Coal (metallurgical)



Heavy Mobile Equipment:
HME TypeModelSizeStatusLeased or
Contractor
Ref. Date
Excavator ....................... Subscription required 350 t Proposed Leased Oct 26, 2021
....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed Leased Oct 26, 2021
Excavator ....................... Subscription required 250 t Existing Leased Apr 11, 2022
Excavator ....................... Subscription required 600 t Existing Leased Apr 11, 2022
....................... Subscription required ....................... Subscription required Proposed Leased Oct 26, 2021
....................... Subscription required ....................... Subscription required Proposed Leased Oct 26, 2021
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Nov 16, 2022
....................... Subscription required ....................... Subscription required Subscription required Nov 16, 2022
Subscription required - Subscription is required.

Staff:

Total WorkforceYear
Subscription required 2021

Corporate Filings & Presentations:

DocumentYear
Annual Report 2022
Press Release 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
Subscription required - Subscription is required.

Subscription required - Subscription is required.

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