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Australia
Caval Ridge Mine

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 Location:
14 km S from Moranbah, Queensland, Australia

  Regional Office:
Level 12, 175 Eagle Street
Brisbane
Queensland, Australia
4000
Phone  ...  Subscription required
WebsiteWeb
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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
  • Dragline
Production Start...
Mine Life29 years (as of Jan 1, 2022)
Caval Ridge Mine consists of two open-cut pits, Horse Pit and Heyford Pit. Caval Ridge Mine Horse Pit Extension Poject will extend the Horse Pit in an easterly direction, increasing the mine life by approximately 20 years to 2056.

If approval is granted, mobilisation on the extension would not occur until 2023, with the pit progressing into the target area around 2025.


Owners

Source: p. 26,201
CompanyInterestOwnershipInvestor's Info
BHP Group Ltd. 50 % Indirect
Mitsubishi Development Pty Ltd. 50 % Indirect
BHP Billiton Mitsubishi Alliance Pty Ltd. (operator) 100 % Direct
BHP Mitsubishi Alliance (BMA) is owned 50:50 by BHP and Mitsubishi Development. BMA operates coal mine Caval Ridge.

Contractors

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Deposit Type

  • Sedimentary


Summary:

The Caval Ridge Mine (CVM) includes two pits: Horse Pit and Heyford Pit.

The CVM is situated on the western limb of the northern Bowen Basin at the southern end of the Collinsville Shelf. The Permian coal measures in the region dip east at three to six degrees. Seam splitting is common at CVM, specifically in the Horse Pit area, and results in local steepening of the coal seam dips. Structurally there is one major fault in the north of Horse Pit and some minor associated faulting.

Economic coal seams occur in the terrestrial Moranbah Coal Measures (MCMs) and consist of approximately 300 m of labile sandstone, siltstone, mudstone, tuffaceous claystone and coal. Underlying the MCMs is the German Creek Formation: a marine influenced formation with quartzose to labile sandstone, siltstone, mudstone and thin coal seams. Overlying the MCMs is the Fort Copper Coal Measures that are characterised by thick uneconomic banded coal seams and tuffaceous sediments.

Remnant Tertiary basalt flows occur in the north of the Horse Pit. Elsewhere, Quaternary sands and clayey sands up to 30 m thick overlay the Permian sequence.

The targeted seams at the CVM and the Horse Pit include all seams that comprise the MCMs exceeding 40 cm in thickness. The primary seam targets at Horse Pit are the Q seam to P seam, the Harrow Creek (H) group of seams, and the Dysart (D) seams. All seams greater than 40 cm are determined to be targets for coking coal productio ........


Mining Methods

  • Truck & Shovel / Loader
  • Dragline


Summary:

Caval Ridge is open-cut, using dragline and truck and shovel fleets for overburden removal.

The Caval Ridge includes two pits: Horse Pit (north of Peak Downs Highway) and Heyford Pit (north of Harrow Creek). The Extention Project proposes to extend the footprint of the existing Horse Pit at the Caval Ridge. As a result of identifying efficiencies in mine sequencing and planning, mining activities are currently scheduled to reach the limit of the approved Horse Pit extent during FY2025, with some existing site infrastructure potentially being relocated from 2023. If approved, the extension is projected to extend the mine’s life from the 2030s to the 2050s.

The key mining elements of the Project are summarised below:
· Extension beyond the approved extent of the existing Horse Pit from FY2025, exclusive of Moranbah Airport and the Moranbah Access Road
· Maximum CVM ROM coal production up to 15 Mtpa
· Revised CVM Life of Mine (LOM) to FY2056
· Development of an Out of Pit Dump (OOPD) in the north-west of ML 70403 (commencing in FY2028)
· Continuation of progressive rehabilitation of disturbed areas with the aim of progressing to a final landform design, including a final void of approximately 680ha in the far east of ML 1775 at the conclusion of mining
· Continuation of current open cut mining techniques employed at CVM
· Continuation of progressive disposal of mining waste and CHPP rejects to IPDs
· Continued use of ........


Crushing and Grinding


Processing

Source: Subscription required

Summary:

- subscription is required.


Production:

CommodityUnits2022202120202019201820172016
Coal (metallurgical) kt  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required8,5706,9167,202
All production numbers are expressed as clean coal.
Subscription required - Subscription is required.

Operational Metrics:

Metrics2021
Coal washing plant annual capacity  ......  Subscription required
Subscription required - Subscription is required.

Reserves at June 30, 2022:
Cut-off criteria:
Coal Resources: 0.3m seam thickness, core yield =30% and <35% raw ash.
Coal Reserves: 0.3m seam thickness.

CategoryTonnage CommodityMarketable Coal
Proven 209 Mt Coal (metallurgical) 121 Mt
Probable 109 Mt Coal (metallurgical) 67 Mt
Proven & Probable 318 Mt Coal (metallurgical) 188 Mt
Measured 304 Mt Coal (metallurgical)
Indicated 216 Mt Coal (metallurgical)
Inferred 147 Mt Coal (metallurgical)
Total Resource 666 Mt Coal (metallurgical)



Heavy Mobile Equipment as of December 14, 2021:
HME TypeModelSizeQuantityLeased or
Contractor
Dozer ....................... Subscription required ....................... Subscription required Leased
Dozer (crawler) ....................... Subscription required ....................... Subscription required Leased
Dozer (crawler) ....................... Subscription required ....................... Subscription required Leased
Dragline ....................... Subscription required ....................... Subscription required Leased
Drill ....................... Subscription required ....................... Subscription required Leased
Drill ....................... Subscription required ....................... Subscription required Leased
Excavator ....................... Subscription required 400 t ....................... Subscription required Leased
Excavator ....................... Subscription required 400 t ....................... Subscription required Leased
Excavator ....................... Subscription required 400 t ....................... Subscription required Leased
Excavator ....................... Subscription required 600 t ....................... Subscription required Leased
Loader ....................... Subscription required 200 t ....................... Subscription required Leased
Shovel ....................... Subscription required ....................... Subscription required Leased
Truck (haul) ....................... Subscription required ....................... Subscription required Leased
Truck (haul) ....................... Subscription required ....................... Subscription required Leased
Truck (haul) ....................... Subscription required ....................... Subscription required Leased
Truck (haul) ....................... Subscription required ....................... Subscription required Leased
Truck (haul) ....................... Subscription required ....................... Subscription required Leased
Subscription required - Subscription is required.

Mine Management:

Job TitleNamePhoneEmailProfileRef. Date
....................... Subscription required ....................... Subscription required ....................... Subscription required ....................... Subscription required Subscription required Sep 28, 2022
....................... Subscription required ....................... Subscription required Subscription required Sep 28, 2022
....................... Subscription required ....................... Subscription required Subscription required Dec 5, 2022
....................... Subscription required ....................... Subscription required Subscription required Oct 27, 2022
....................... Subscription required ....................... Subscription required Subscription required Sep 28, 2022
....................... Subscription required ....................... Subscription required Subscription required Sep 28, 2022
....................... Subscription required ....................... Subscription required Subscription required Sep 28, 2022
Subscription required - Subscription is required.

Staff:

Total WorkforceYear
Subscription required 2021
Subscription required 2020
Subscription required 2019
Subscription required 2017
Subscription required 2016

Corporate Filings & Presentations:

DocumentYear
Annual Report 2022
Other 2022
Press Release 2022
................................... 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
Environmental Impact Statement 2009
Other 2009
Subscription required - Subscription is required.

Subscription required - Subscription is required.

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