Canada

CST Coal No.8 Mine (Grande Cache) Mine

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Categories

Overview

Mine TypeOpen Pit
StatusActive
Commodities
  • Coal (metallurgical)
Mining Method
  • Truck & Shovel / Loader
Production Start... Lock
SnapshotCST Canada Coal announced the delisting of the shares effective Monday, December 4, 2023 at 4:00 p.m.

In October, CST Canada Coal applied for permits to deepen two of its pits by 155 and 210 metres.

An approval would extend the mine's life by allowing it to reach about 3.3 million tonnes of steelmaking coal, company documents say.

It is not environmentally responsible to approve further development of the No. 8 Mine until [the regulator] can enforce safe and efficient practices at CST Canada Coal.

Owners

SourceSource
CompanyInterestOwnership
CST Group Ltd. 88 % Indirect
CST Group Limited (“CST”), via its indirect non-wholly owned subsidiary CST Canada Coal Limited (“CST Coal”), completed on 18 July 2018 the acquisition of the mining assets of Grande Cache Coal LP. CST holds 88% interest in CST Coal.

The mineral tenure of the Coal Reserves is 100% held by CST Coal.

Deposit type

  • Sedimentary

Summary:

The coal resources and coal reserves reported herein are located in the western foothills of Alberta where a stratigraphic sequence of approximately 150 m of Lower Cretaceous non-marine clastic sediments contain seven coal seams ranging in thickness from 7 metres to 1.5 metres. The Company coal leases are within a larger area of economic coal measures known as the Smoky River Coalfield. The deposit is extensively deformed by the compressive tectonics of the Laramide Orogeny, with thrust faulting and folding creating thickened coal zones up to 5 times the stratigraphic thickness of the seams. Fault throw is up to 2000 m, and fold amplitudes are up to 1500 m. Dips range from flat to vertical, with the limbs of major folds being generally deformed by smaller scale parasitic folding and imbricate small scale thrust faulting. Surface resources areas are found within the most severely structured zones, where thickening of the coal seams under compressive tectonic forces is extensive. Underground resource areas are found is less structured areas where flat bottomed synclines, or gentle anticlines with limb dips of less than 25 degrees, lie between the more structured zones. These zones of gently dipping coal measures can be up to 2 km in width and in general do not show extensive structural thickening of the coal seams. Coal quality of the various coal resource areas is well understood from an extensive database of exploration core sampling, exploration adits, and by sampling of processing operations during previous mining. Coal rank ranges from semi-anthracite to the boundary between medium and low volatile bituminous coals. The majority of the coal resources are within a mean maximum reflectance range of 1.50 to 1.65%. In-seam ash varies between 11% and 35%; in-seam sulphur varies between 0.30 and 0.70%.

Reserves

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Mining Methods

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Comminution

Crushers and Mills

Milling equipment has not been reported.

Processing

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Production

The No.8 Mine was placed in care and maintenance in mid May 2020 until early October 2021.
CommodityUnits20232022202120202019
Coal (metallurgical) Mt  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe0.2
All production numbers are expressed as clean coal.

Operational metrics

Metrics202320222021202020192015
Coal tonnes mined  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe0.38 Mt
Stripping / waste ratio  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe9.8 bcm/t
Waste  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe
Tonnes processed  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe0.36 Mt
Annual production capacity  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe3 Mt of clean coal
Raw coal annual capacity  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe5 Mt
Coal washing plant annual capacity  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe4.5 Mt of ROM coal

Production Costs

Commodity production costs have not been reported.

Financials

Units2023202220212020
Revenue M USD  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe
Gross profit M USD  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe
Pre-tax Income M USD  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe
After-tax Income M USD  ....  Subscribe  ....  Subscribe  ....  Subscribe

Heavy Mobile Equipment

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Personnel

Mine Management

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Jun 10, 2024
....................... Subscription required ....................... Subscription required Subscription required Jun 10, 2024
....................... Subscription required ....................... Subscription required Subscription required Jun 10, 2024
....................... Subscription required ....................... Subscription required Subscription required Jun 10, 2024

EmployeesYear
...... Subscription required 2023
...... Subscription required 2022
...... Subscription required 2021
...... Subscription required 2020
...... Subscription required 2015

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