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Australia
Mt Webber Mine

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 Location:
150 km SE from Port Hedland, Western Australia, Australia

  Regional Office:
Level 18, Raine Square, 300 Murray Street
PO Box 7071 Cloisters Square, WA 6850
Perth
Western Australia, Australia
6000
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Sales
  • Reserves
  • Costs & Financials
  • Fleet
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeOpen Pit
Commodities
  • Iron Ore
Mining Method
  • Truck & Shovel / Loader
Production Start...
Mine Life2.5 years (as of Jan 1, 2020)
The Mt Webber Mine produces direct shipping ore.


Owners

Source: p. 17
CompanyInterestOwnership
Hancock Prospecting Pty. Ltd. 100 % Indirect
The Mt Webber mine is 100% owned by Atlas Iron Limited.

Atlas Iron Limited was acquired by Hancock Prospecting Pty Ltd, through its wholly-owned subsidiary Redstone Corporation Pty Ltd in December 2018.

Contractors

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Deposit Type

  • Banded iron formation


Summary:

The Mount Webber Project consists of three deposits:
• Gibson/Daltons – one deposit split on a tenement boundary;
• Fender – located to the southwest on the same banded iron formation (BIF) unit as Gibson/Daltons; and
• Ibanez – located slightly to the west of Gibson on a parallel BIF outcrop.

The Project is located within the Archaean age Granite greenstone terrane of the Pilbara Craton, with the deposits occurring within the Gorge Creek and Sulphur Springs Groups of the Pilbara Supergroup (Slomp, 2017). Complex folding and faulting have resulted from the deposits being located between two large granitoid complexes – the Shaw Granitoid Complex to the east and the Yule Granitoid Complex to the west (Hermawan, 2013).

The deposits are hosted within the Pincunah Banded Iron Member (Hickman, 2013) of the Kangaroo Caves Formation. The Pincunah Banded Iron Member comprises red-black BIF, chert, tuff, siltstone and shale and is unconformably underlain by the Warrawoona Group mafic and ultramafic lithologies. The BIF and chert of the Pincunah Banded Iron Member form steep-sided ridges with flat-topped summits. The Pincunah Banded Iron Member has been informally divided into Upper and Lower BIF units separated by a thin chert unit.

One dolerite intrusive has been identified in the Fender deposit that cuts the entire sequence, but this has had no apparent effect on the mineralisation.

Mineralisation
The mineralisation has ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

The mining approach to the Mount Webber deposit is by conventional open pit mining methods using drill and blast methods. Mined material is mined in 6 m-high benches. The blasted rock is loaded across two 3 m-high flitches by backhoe excavators into rigid body trucks.

The contractor provides the mining and processing equipment, completes operations and maintenance activities. The mining of ore at Mt Webber is contracted to BGC Contracting Pty Ltd (now NRW Contracting Pty Ltd).

Stage 1 mining at Mt Webber began in July 2014 at a rate of 3 Mtpa. In late 2014 mining increased to 6 Mtpa following completion of Stage 2 developments. Production increased to approximately 9 Mtpa beginning in August 2017. Mining was reduced back to 7.8 Mtpa between November 2017 to February 2018 before increasing again to approximately 9 Mtpa thereafter. As at August 2020 the Mt Webber mine life is estimated to be 2.5 years depending on future mine plans and ultimate production rates.

Ore and waste is differentiated through grade control practices and ore is trucked to the run-of mine (ROM) stockpile. Ore is segregated into grade categories, namely:
• H0 - +60% Fe
• H1 – 57.5 to 60% Fe
• H2 – 55 to 57.5% Fe (Ibanez and Fender)
• H2 – 53.5 to 57.5% Fe (Gibson/Daltons)
• H3 – 53.5 to 55% Fe (Ibanez and Fender)
• H3 – 50 to 53.5% Fe (Gibson/Daltons).

Material is classified as waste when the grade is below 53.5% Fe for Ibanez and F ........


Crushing and Grinding
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Processing

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Summary:

- subscription is required.


Production:

CommodityUnits2021202020192018
Iron Ore M wmt  ......  Subscription required *  ......  Subscription required  ......  Subscription required9.2
All production numbers are expressed as lump & fines. * Combined production for Mt Webber Mine and Sanjiv Ridge (Corunna Downs) Mine
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Operational Metrics:

Metrics202020192018
Annual ore mining rate  ......  Subscription required9 Mt7 Mt
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Reserves at December 1, 2018:
Mineral resources: cut-off 50% Fe
Ore reserves: cut-off 50%-53.5% Fe

CategoryTonnage CommodityGrade
Proven & Probable 30,000 kt Iron 57.6 %
Measured 23,200 kt Iron 58.6 %
Indicated 13,300 kt Iron 56.2 %
Inferred 1000 kt Iron 56.9 %

Commodity Production Costs:

CommodityUnits2018
C1 cash costs Iron Ore AUD 39.3 / wmt  
All-in costs Iron Ore AUD 57.6 / wmt  

Financials:

Units20202019
Revenue M AUD  ......  Subscription required  ......  Subscription required
After-tax Income M AUD  ......  Subscription required  ......  Subscription required
Operating Cash Flow M AUD  ......  Subscription required  ......  Subscription required



Heavy Mobile Equipment as of July 16, 2018:
HME TypeModelSizeQuantityLeased or
Contractor
Excavator ....................... Subscription required 200 t ....................... Subscription required Leased
Excavator ....................... Subscription required 100 t ....................... Subscription required Leased
Truck (haul) 150 t Leased
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Mar 22, 2022
....................... Subscription required ....................... Subscription required Subscription required Mar 22, 2022
....................... Subscription required ....................... Subscription required Subscription required Mar 22, 2022
....................... Subscription required ....................... Subscription required Subscription required Mar 22, 2022
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Staff:

EmployeesYear
Subscription required 2019

Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
Annual Report 2018
Other 2018
Quarterly Report 2018
Technical Report 2018
Other 2017
Other 2013
Subscription required - Subscription is required.

Subscription required - Subscription is required.

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