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Australia
Dendrobium Mine (Illawarra Operation)

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 Location:
72 km SW from Sydney, New South Wales, Australia

  Regional Office:
Port Kembla Coal Terminal Port Kembla Road Inner Harbour
Port Kembla
New South Wales, Australia
2505
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Fleet
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeUnderground
Commodities
  • Coal (metallurgical)
Mining Method
  • Longwall
Production Start...
Mine Life2028


Owners

Source: p. 11
CompanyInterestOwnershipInvestor's Info
Dendrobium Coal Pty Ltd. (operator) 100 % Direct
South32 Limited 100 % Indirect
The Dendrobium Mine is owned and operated by Dendrobium Coal Pty Ltd, a subsidiary company of Illawarra Coal Holdings Pty Ltd, a wholly owned subsidiary of South32 Limited.

Contractors

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Deposit Type

  • Sedimentary


Summary:

Illawarra Coal's assets are located in the southern portion of the Sydney Basin within the Southern Coalfield.

The full sequence of Triassic to Permian sedimentary units are present within the Illawarra Coal's areas, including the Permian Shoalhaven Group, Illawarra Coal Measures and the overlying Triassic Narrabeen Group and Hawkesbury Sandstone.

Wongawilli Coal ranges between 7 to 11 m thick and consists of inter-banded tuffs, carbonaceous shales and coal. The basal 4 m contains coal of economic potential and is currently mined at the Dendrobium Mine. The Wongawilli Coal is subdivided into 13 individual plies and 12 partings units and into three working sections as shown in. The working sections are based on mining experience and are the most relevant division of the seam. The Second Machine Band working section is generally the target of mining at Dendrobium.

The structure over the Illawarra operation area is relatively well defined based on the geological data available. Seam dips over the area are generally low (1° to 3°). There are localised variations in seam structures. Relatively steeply dipping strata occurring at the Dendrobium Mine between Areas 2 and 3 where dips reach 7° - 8° in an area associated with a small scale fault. The localised steeper dip zones are also often associated with underlying igneous intrusions and domes.

Faulting has been identified across the Bulli Seam Operation and Dendrobium Operation. The faul ........


Mining Methods

  • Longwall


Summary:

Dendrobium Mine extracts coal from the Wongawilli Seam (also known as the No 3 Seam) of the Southern Coalfield. Three mining areas make up the approved mine plan for Dendrobium and are named Areas 1, 2 and 3 (including 3A, 3B and 3C). Longwall mining during the reporting period was undertaken in Area 3A (Longwall (LW) 19) and Area 3B (LW17 and LW18). The mine primarily produces hard coking coal and is approved to produce up to 5.2 million tonnes per annum until 31 December 2030. Dendrobium Mine is comprised of a number of sites as detailed below.

Kemira Valley Coal Loading Facility (KVCLF)
Coal is transported from the underground workings to the KVCLF via a conveyor network, reaching the surface via the Kemira Valley Tunnel (KVT). The coal is then fed through a coal sizer, into a rill tower and deposited onto a 140,000-tonne capacity stockpile. Coal is loaded onto trains via an enclosed rail-loading chute

Kemira Valley Rail Line (KVRL)
The private KVRL is used to transport the coal from the KVCLF to the Dendrobium Coal Preparation Plant (DCPP).

Ventilation Shaft 1
The fan housings associated with Ventilation Shaft 1 were decommissioned in October 2008 and relocated to Ventilation Shaft 3. This shaft now provides intake air to the underground workings. The Ventilation Shaft 1 site layout is shown in Plan

Ventilation Shaft
2/3 Site (ML 1566) Construction of Ventilation Shafts 2 and 3 commenced during 2006 and ........


Crushing and Grinding


Processing

Source: Subscription required

Summary:

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Production:

CommodityUnits2022202120202019201820172016
Coal (metallurgical & thermal) Mt  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required2.73.43.3
All production numbers are expressed as clean coal. ^ Guidance / Forecast.
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Operational Metrics:

Metrics202220212020201920182017
Coal tonnes mined  ......  Subscription required  ......  Subscription required  ......  Subscription required4,679,517 t3,691,454 t4,567,426 t
Reject  ......  Subscription required  ......  Subscription required  ......  Subscription required1,199,303 t956,278 t1,205,821 t
Raw coal annual capacity  ......  Subscription required  ......  Subscription required  ......  Subscription required5.2 Mt5.2 Mt5.2 Mt
Annual processing capacity  ......  Subscription required  ......  Subscription required  ......  Subscription required5.2 Mt
^ Guidance / Forecast.
Subscription required - Subscription is required.

Reserves at June 30, 2022:

CategoryTonnage CommodityMarketable Coal
Proven 3.4 Mt Coal (metallurgical & thermal) 2.8 Mt
Probable 7.6 Mt Coal (metallurgical & thermal) 5.8 Mt
Proven & Probable 11 Mt Coal (metallurgical & thermal) 8.6 Mt
Measured 54 Mt Coal (metallurgical & thermal)
Indicated 243 Mt Coal (metallurgical & thermal)
Inferred 130 Mt Coal (metallurgical & thermal)
Total Resource 427 Mt Coal (metallurgical & thermal)



Heavy Mobile Equipment as of March 10, 2015:
HME TypeModelSizeQuantity
Continuous Miner ....................... Subscription required ....................... Subscription required
Feeder Breaker ....................... Subscription required
Shuttle car ....................... Subscription required 16 t ....................... Subscription required
Subscription required - Subscription is required.

Mine Management:

Job TitleNamePhoneProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Oct 14, 2022
....................... Subscription required ....................... Subscription required ....................... Subscription required Subscription required Oct 14, 2022
....................... Subscription required ....................... Subscription required ....................... Subscription required Subscription required Oct 14, 2022
....................... Subscription required ....................... Subscription required Subscription required Oct 14, 2022
....................... Subscription required ....................... Subscription required Subscription required Oct 14, 2022
....................... Subscription required ....................... Subscription required Subscription required Oct 14, 2022
Subscription required - Subscription is required.

Staff:

Total WorkforceYear
Subscription required 2021
Subscription required 2020
Subscription required 2019

Corporate Filings & Presentations:

DocumentYear
Annual Report 2022
Annual Review 2022
Fact Sheet 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
Annual Report 2018
Annual Review 2018
Annual Report 2017
Annual Report 2017
Annual Report 2016
Annual Report 2015
Other 2015
Subscription required - Subscription is required.

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