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Australia
Tahmoor South Project (Tahmoor North Mine)

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 Location:
4 km N from Bargo, New South Wales, Australia

  Project Contacts:
P.O. Box 100
Tahmoor
New South Wales, Australia
2573
Phone  ...  Subscription required
Fax+61-02-46-400-140
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  • Filings & News

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Overview

StagePermitting
Mine TypeUnderground
Commodities
  • Coal (metallurgical)
  • Coal (thermal)
Mining Method
  • Longwall
Processing
  • Crush & Screen plant
  • CHPP
  • Flotation
  • Dense media separation
Mine Life2032
Tahmoor Coking Coal is seeking approval for the Tahmoor South Project. The project involves the extension of underground coal mining at Tahmoor Mine, to the south of Tahmoor Coal’s existing Surface Facilities Area.


Owners & OPERATOR

Source: p. 20
CompanyInterestOwnership
SIMEC Group 100 % Indirect
Tahmoor Coal Pty Ltd (operator) 100 % Direct

Deposit Type

  • Sedimentary


Summary:

Tahmoor Mine lies in the southern part of the Permo-Triassic Sydney Basin, within which the main coal bearing sequence is the Illawarra Coal Measures. The Tahmoor South Project involves extraction from the Bulli Seam, which is the upper most seam in the Illawarra Coal Measures and is the seam currently mined at the Tahmoor Mine. In the Project area, the Bulli coal seam is located approximately 370 to 430 m below the surface and is approximately 1.8 to 3.3 m thick.

The Bulli seam coal is predominantly a hard-coking coal used in steel making.

Two major fault zones exist in the Project area: the Nepean Fault and the Central Fault zones. The presence of these fault zones has constrained the extent of longwalls and defined the mining domain for the proposed development. The Nepean Fault zone is the most significant geological feature. This fault is approximately 350 m wide and trends north-south along the eastern boundary of the area. The Central Fault zone is a smaller fault and trends along the western and southern boundaries.


Mining Methods

  • Longwall


Summary:

The Tahmoor South Project is an extension of underground mining at Tahmoor, to the south of existing surface facilities. The project seeks to extend the life of mining at the Tahmoor Mine until approximately 2032, extending employment for close to 400 people for a further 10 years.

Coal extraction of up to 4 million tonnes of Run of Mine (ROM) coal per annum is proposed with up to 33 million tonnes of ROM coal proposed over the life of the Project through Longwall mining. This technique for coal extraction has been used by Tahmoor Mine for over 30 years.

Coal extraction is proposed from two series (A & B) of 6 longwalls which would be orientated in a south-east / north-west direction. Longwall widths would be up to 283 m and lengths would vary between 1,515 m (LW 101B) and 3,810 m (LW 106B). Overburden depth would range from a minimum of 365 m above proposed LW 105A to a maximum of 410 m above proposed LWs 101A, 101B and 102B. The proposed extraction heights vary from a minimum of 2.1 m to a maximum of 2.6 m.

Tahmoor South Mine Schedule:
• LW101A-103A – 2022 to 2024
• LW101B-106B – 2025 to 2030
• LW104A-106A – 2031 to 2032

Once the coal has been extracted and brought to the surface, it would be processed at Tahmoor Mine’s existing facilities, before being transported primarily on rail to domestic and international customers.


Crushing and Grinding

Crushing and Screening: The Run of Mine (ROM) feed is normally in the size range of 0 to 250mm. The feed is sized to 100 mm using a divergator. The +100mm reports to the primary crusher and is crushed to 100mm top size. The combined product reports to the raw coal sizing screen and material over 50mm is crushed in the secondary crusher to 50mm maximum. The product from this operation is de-slimed over 2 de-sliming screens to 0.5mm.


Processing

  • Crush & Screen plant
  • CHPP
  • Flotation
  • Dense media separation

Source: Subscription required

Summary:

The Project would utilise existing on-site Coal Handling and Preparation Plant, upgraded to include a new coarse rejects screen, additional belt filter capacity and increased thickener capacity.

The existing Coal Handling and Preparation Plant utilises crushing and screening, primary and secondary cyclones, and a flotation circuit to produce coking and thermal coal product which is stockpiled, before being loaded and transported by rail to Port Kembla Coal Terminal.

The CHPP is able to process 650 tonnes per hour.

Tahmoor’s Coal Preparation Plant is made up of three main sections:
a) Crushing and Screening: The Run of Mine (ROM) feed is normally in the size range of 0 to 250mm. The feed is sized to 100 mm using a divergator. The +100mm reports to the primary crusher and is crushed to 100mm top size. The combined product reports to the raw coal sizing screen and material over 50mm is crushed in the secondary crusher to 50mm maximum. The product fro ........


Projected Production:

CommodityUnitsLOM
Coal (metallurgical) kt 22,647
Coal (thermal) kt  ......  Subscription required
Coal (M/T) kt  ......  Subscription required
All production numbers are expressed as clean coal.

Operational Metrics:

Metrics
Raw coal annual capacity  ......  Subscription required
Reject, LOM  ......  Subscription required
ROM coal, LOM  ......  Subscription required
* According to 2020 study.
Subscription required - Subscription is required.

Reserves at December 31, 2017:

CategoryTonnage CommodityMarketable Coal
Proven 13 Mt Coal (metallurgical) 8 Mt
Proven 13 Mt Coal (thermal) 0.8 Mt
Probable 30 Mt Coal (metallurgical) 21 Mt
Probable 30 Mt Coal (thermal) 2 Mt
Measured 20 Mt Coal (metallurgical)
Indicated 240 Mt Coal (metallurgical)
Inferred 100 Mt Coal (metallurgical)

Commodity Production Costs:

CommodityUnitsAverage
Assumed price Coal (metallurgical) AUD  ......  Subscription required *
Assumed price Coal (thermal) AUD  ......  Subscription required *
* According to 2020 study / presentation.
Subscription required - Subscription is required.

2020 Study Costs and Valuation Metrics :

MetricsUnitsLOM Total
Total CapEx $M AUD  ......  Subscription required
Gross revenue (LOM) $M AUD  ......  Subscription required
Subscription required - Subscription is required.

Heavy Mobile Equipment:

Mine Management:

Job TitleNamePhoneProfileRef. Date
....................... Subscription required ....................... Subscription required ....................... Subscription required Subscription required Jan 11, 2021
....................... Subscription required ....................... Subscription required ....................... Subscription required Aug 3, 2020
....................... Subscription required ....................... Subscription required Subscription required Jan 11, 2021
....................... Subscription required ....................... Subscription required Subscription required Jan 11, 2021
....................... Subscription required ....................... Subscription required Subscription required Jan 11, 2021
Subscription required - Subscription is required.

Staff:

Total WorkforceYear
Subscription required 2020

Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
Year-end Mineral Reserves 2017
Annual Review 2014
Subscription required - Subscription is required.

Aerial view:

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