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Australia
Extension Hill Mine

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 Location:
85 km E from Perenjori, Western Australia, Australia

  Regional Office:
Level 1, 2 Kings Park Rd
PO Box 55
West Perth
Western Australia, Australia
6005
Phone  ...  Subscription required
Fax+61 8 9485 2305
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Financials
  • Filings & News

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Overview

StatusClosing / Closed
Mine TypeOpen Pit
Commodities
  • Iron (hematite)
Mining Method
  • Truck & Shovel / Loader
Production commenced in late 2011 at the Extension Hill deposit which yielded over 15Mt of iron ore by the time reserves were depleted in late 2016. Production then switched to the nearby Iron Hill deposit in early 2017, yielding an additional 5Mt of DSO iron ore by the time final sales were completed in February 2019. Sales of stockpiled low grade material from Extension Hill are expected to be concluded in late 2019, after which the Mid West business will transition to final closure.


Owners

 
CompanyInterestOwnership
Mount Gibson Iron Ltd. 100 % Direct

Deposit Type

  • Banded iron formation


Summary:

The Project is a combined hematite and magnetite open cut mining operation. Hematite ore and magnetite bearing Banded Iron Formation (BIF).


Mining Methods

  • Truck & Shovel / Loader


Summary:

The Project is a combined hematite and magnetite open cut mining operation. Hematite ore and magnetite bearing Banded Iron Formation (BIF) will be mined by conventional open cut methods of blasting and excavation with material loaded onto trucks and transported to stockpile areas.


Crushing and Grinding


Processing


Summary:

The hematite is direct shipping grade ore and no processing of the ore is required other than the crushing and screening of the ore into fines (<6.3mm) and lump (6.3 – 32.0mm).

Ore is mined, crushed and screened on-site, transported by sealed road 85km to Perenjori, where it is loaded onto rail wagons and railed 240km to the Geraldton Port. Mining commenced at Extension Hill in the 2011/12 financial year.


Production:

CommodityUnits2019201820172016
Iron (hematite) kwmt  ......  Subscription required  ......  Subscription required3,2923,895
All production numbers are expressed as lump & fines.
Subscription required - Subscription is required.

Operational Metrics:

Metrics2019201820172016
Ore tonnes mined  ......  Subscription required  ......  Subscription required  ......  Subscription required4,595 kwmt
Waste  ......  Subscription required  ......  Subscription required  ......  Subscription required1,973 kwmt
Subscription required - Subscription is required.

Reserves at December 31, 2019:

CategoryTonnage CommodityGrade
Measured 1.27 Mt Iron 55.3 %
Measured 1.27 Mt Silica 9.16 %
Measured 1.27 Mt Al2O3 2.76 %
Indicated 0.31 Mt Iron 57.3 %
Indicated 0.31 Mt Silica 10.42 %
Indicated 0.31 Mt Al2O3 1.62 %
Inferred 0.2 Mt Iron 56.6 %
Inferred 0.2 Mt Silica 10.49 %
Inferred 0.2 Mt Al2O3 1.66 %

Financials:

Units2019201820172016
Revenue M AUD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Subscription required - Subscription is required


Heavy Mobile Equipment:

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Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2019
................................... Subscription required 2018
Annual Report 2017
Other 2008
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Aerial view:

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