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Australia
Isaac Plains Complex Mine

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 Location:
10 km E from Moranbah, Queensland, Australia

  Regional Office:
Level 15, 133 Mary Street
GPO Box 2602 Brisbane QLD 4001
Brisbane
Queensland, Australia
4000
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Fleet
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeOpen Pit
Commodities
  • Coal (M/T)
Mining Method
  • Truck & Shovel / Loader
  • Dragline
Processing
  • CHPP
  • Wash plant
Mine Life8 years (as of Jan 1, 2019)
The Isaac Plains Complex incorporates:
- the operating Isaac Plains East mine;
- Isaac Plains mine which ceased operation in 2018;
- the Isaac Plains Underground development project;
- operating assets including the dragline,coal handling plant, infrastructure facilities and train load out.
Latest NewsStanmore Resources boost for Bis     May 1, 2022


Owners

Source: p. 15
CompanyInterestOwnership
Golden Energy and Resources Ltd. (GEAR) 60 % Indirect
Stanmore IP South Pty Ltd (operator) 100 % Direct
GEAR’s effective interest in Stanmore is 60% through its approximately 80% shareholding in its subsidiary Golden Investments (Australia) Pte. Ltd. which holds 75.33% in Stanmore.

Deposit Type

  • Sedimentary


Summary:

IPC lies within the Permo-Triassic Bowen Basin. The Bowen Basin consists of 10 kilometre (km) thick sequences of volcanic, shallow marine and terrestrial sediments and is categorised back-arc to foreland basin.

The general stratigraphy of IPC includes (oldest to youngest)
- Lower-Permian Reids Dome Beds;
- Lower-Upper Permian Back Creek Group;
- Upper Permian Blackwater Group, and Rewan group.

Coal seams occur within the Rangal Coal Measures which are Late Permian in age. These seams dip gently to the east at approximately 5 degrees.

The coal seams found within the Rangal Coal Measuresare the Leichhardt, Leichhardt Upper and Leichhardt Lower, and Vermont.

The seams have a cumulative thickness of approximately 7-10 m across the deposit.

The Vermont seam was not included in the resource estimate due to the lack of geological information. The results at hand indicate the coal to be of poorer quality.


Mining Methods

  • Truck & Shovel / Loader
  • Dragline


Summary:

The depth limit of potential open-cut mining varies based on multiple and variable inputs. Presently the limit of open-cut mining is likely to occur between 100 to 150m (depth from surface). If underground mining were to take place, a minimum mining thickness of 1.5m would be required. As such a minimum seam mining thickness was applied to depths >150m, thereby excluding any seams <1.5m thickness from the resource estimate.

Absolute depth of resource was a maximum of 330m from topography.

The mining methodology considered for this estimate is:

• a combination of cast, doze, dragline or truck & excavator to move waste into the adjacent strip or dump. The strip width selected is nominally 55m at IPM and 50m at IPE.
• Drilling and blasting (D&B) of the in situ waste.
• A maximum horizon of 50m of waste is allocated to the dragline.
• Remaining waste is removed by truck and excavator.
• Coal mining using excavators and rear dump trucks haul the coal to the Isaac Plains Complex Coal Preparation Plant (IPC CHPP) for washing.
• Parting > 0.3m thick is stripped separately.


Crushing and Grinding


Processing

  • CHPP
  • Wash plant

Source: Subscription required

Summary:

Mining operations delivered 3,020kt of ROM coal to the coal handling and processing plant (CHPP).

Coal mining using excavators and rear dump trucks haul the coal to the Isaac Plains Complex Coal Preparation Plant (IPC CHPP) for washing.


Production:

CommodityUnits202020192018
Coal (M/T) kt  ......  Subscription required  ......  Subscription required1,128
All production numbers are expressed as clean coal.
Subscription required - Subscription is required.

Operational Metrics:

Metrics202020192018
Stripping / waste ratio  ......  Subscription required8.8 14.2
Coal tonnes mined  ......  Subscription required2,929 kt of ROM coal1,643 kt of ROM coal
Annual processing capacity  ......  Subscription required3.5 Mt of ROM coal
Subscription required - Subscription is required.

Reserves at December 31, 2020:

CategoryOreTypeTonnage CommodityMarketable Coal
Proven Total 14.9 Mt Coal (M/T) 11.8 Mt
Probable Total 8.4 Mt Coal (M/T) 6.6 Mt
Proven & Probable Total 23.3 Mt Coal (M/T) 18.4 Mt
Measured Total 33.5 Mt Coal (M/T)
Indicated Total 24 Mt Coal (M/T)
Inferred Total 9 Mt Coal (M/T)
Total Resource Total 66 Mt Coal (M/T)

Commodity Production Costs:

CommodityUnits202020192018
Cash costs (sold) Coal (M/T) AUD  ......  Subscription required  ......  Subscription required 110 / t
Subscription required - Subscription is required.

Financials:

Units20202019
Revenue M AUD  ......  Subscription required  ......  Subscription required
After-tax Income M AUD  ......  Subscription required  ......  Subscription required
EBITDA M AUD  ......  Subscription required  ......  Subscription required
Subscription required - Subscription is required


Heavy Mobile Equipment as of July 5, 2019:
HME TypeModelSizeQuantity
Excavator ....................... Subscription required 600 t ....................... Subscription required
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Oct 25, 2021
....................... Subscription required ....................... Subscription required Subscription required Dec 5, 2020
Subscription required - Subscription is required.


Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
Subscription required - Subscription is required.

News:

NewsDate
Stanmore Resources boost for Bis May 1, 2022
Stanmore to expand Isaac Plains February 3, 2022
Stanmore aims for 2021 construction at Isaac Downs August 13, 2020
Stanmore directors urge shareholders to accept Golden Investments’ offer May 11, 2020
Stanmore Coal forecasts zero exports for June April 29, 2020
NRW pursues more growth after record year November 21, 2018
Golding wins $500m contract extension at Isaac Plains November 16, 2018

Aerial view:

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