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Australia
Broken Hill Operation

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 Location:
Broken Hill, New South Wales, Australia

  Address:
Wentworth Road
PO Box 5001
Broken Hill
New South Wales, Australia
2880
Phone  ...  Subscription required
Fax+61 (8)8088-8664
WebsiteWeb
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeUnderground
Commodities
  • Copper
  • Zinc
  • Lead
  • Silver
Mining Method
  • Longhole open stoping
Production Start...
Mine Life25 years (as of Jan 1, 2017)
The Broken Hill Operations are principally comprised of three separate underground mining areas: Southern Operations; Potosi Operations; and North Mine.

Perilya Ltd. is not reported production data since it was de-listed from the Australian Stock Exchange in 2013.


Owners

Source: p. 2
CompanyInterestOwnership
Shenzhen Zhongjin Lingnan Nonfemet Co.,Ltd. 100 % Indirect
Perilya Broken Hill Limited is a wholly-owned subsidiary of Perilya Limited and is the entity which owns and operates the mining operations based in Broken Hill in New South Wales.

Perilya is owned by Zhongjin Lingnan Mining (HK) Company Limited of Hong Kong. It bought the remaining 48% of the shares that it did not already own in December 2013, and de-listed Perilya from the Australian Stock Exchange. Zhongjin Lingnan is a wholly owned subsidiary of Shenzhen Zhongjin Lingnan Nonfemet Co., Limited, China, which is 39.23% owned by the Government of the People’s Republic of China, and is listed on the Shenzhen stock exchange.

Contractors

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Deposit Type

  • VMS


Summary:

The Broken Hill deposit lies within the Broken Hill Group of the Palaeoproterozoic Willyama Supergroup and consists of nine separate but closely related orebodies that are stacked within a single stratigraphic package in the Hores Gneiss of the Broken Hill Group.

The impression that the Broken Hill orebodies are all massive sulphides with little else has long been dispelled.

Not only can different styles of mineralisation be identified but the information also gives valuable insights into the ways the deposit has responded to deformation and also to the predeformation characteristics of the deposit and therefore its genesis.

Massive sulphides form only a minor part of each orebody and are most common in deformed regions of the lenses. Sulphide-rich mineralisation is more often coarsely banded by variations in gangue mineral and sulphide abundance. Each orebody contains a high percentage of gangue minerals, including primary calcite, calcium or manganese pyroxenoids or pyroxenes, or quartz, that are distributed through the mineralisation as discrete bands, layers and stratigraphic horizons. Sphalerite (marrnatite) is the dominant sulphide constituent of all ore lenses and the percentage of galena diminishes in each orebody from 3L to BL.


Mining Methods

  • Longhole open stoping


Summary:

Activities that are undertaken at the South Mine include the following:
- extraction of ore using underground mining methods. Ore and waste rock are removed from the mine using both shaft haulage and via decline. The mining is expected to be completed in 2030;
- crushing and screening of ore and stockpiling on a crushed ore stockpile;

The Rasp Mine is operated by CBH Resources Ltd. Operation of underground mine to extract ore at a maximum rate of 750,000 tpa, with mining expected to continue until 31 December 2026.

Mining ore from the Potosi mine is expected to be completed in 2021.

Mining activities at the North Mine:
- underground diamond drilling rigs targeting the upper section of mine area for exploration and blasting activities;
- transportation of ore and mullock to the surface using portal and decline via underground haul trucks;
- mullock placement occurred within existing Cosmopolitan open cut;
- extracted ore transported on sealed haulage route to surface ROM pad enclosure, a sealed, negative pressure building equipped with dust collection system.

Mining is principally conducted using a longhole open stope method with variations developed for extraction of the secondary resource located in the previously worked pillars area.

Longhole stoping currently accounts for 70 per cent of underground production, with pillar extraction and development ore contributing approximately 30 per ce ........


Crushing and Grinding
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Processing

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Summary:

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Production:

CommodityProductUnits20212020
Silver Metal in concentrate koz  ......  Subscription required  ......  Subscription required
Lead / Zinc Metal in concentrate M lbs  ......  Subscription required  ......  Subscription required
Zinc Payable metal kt
Zinc Metal in concentrate kt
Zinc Concentrate kt
Lead Payable metal kt
Lead Metal in concentrate kt
Lead Concentrate kt
Silver M oz
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Reserves at December 31, 2012:
Mineral Resource cutoff grade (combined Pb & Zn): North Mine Deeps 8%, Henry George/1130/Central Blocks variable 2-5%, Silver Peak 5%, all other resources 7%

CategoryTonnage CommodityGrade
Proven 5,400 kt Zinc 7.3 %
Proven 5,400 kt Lead 5.9 %
Proven 5,400 kt Silver 59 g/t
Probable 6,400 kt Zinc 5.1 %
Probable 6,400 kt Lead 3.8 %
Probable 6,400 kt Silver 41 g/t
Proven & Probable 11,700 kt Zinc 6.2 %
Proven & Probable 11,700 kt Lead 4.8 %
Proven & Probable 11,700 kt Silver 50 g/t
Measured 7,100 kt Zinc 9.9 %
Measured 7,100 kt Lead 9 %
Measured 7,100 kt Silver 119 g/t
Indicated 8,000 kt Zinc 8.6 %
Indicated 8,000 kt Lead 6.9 %
Indicated 8,000 kt Silver 91 g/t
Inferred 6,600 kt Zinc 9.1 %
Inferred 6,600 kt Lead 5.1 %
Inferred 6,600 kt Silver 56 g/t
Total Resource 21,700 kt Zinc 9.2 %
Total Resource 21,700 kt Lead 7 %
Total Resource 21,700 kt Silver 89 g/t



Heavy Mobile Equipment:

Mine Management:

Job TitleNamePhoneProfileRef. Date
....................... Subscription required ....................... Subscription required ....................... Subscription required Subscription required Sep 20, 2022
....................... Subscription required ....................... Subscription required ....................... Subscription required Sep 29, 2021
....................... Subscription required ....................... Subscription required ....................... Subscription required Subscription required Sep 20, 2022
....................... Subscription required ....................... Subscription required ....................... Subscription required Subscription required Sep 20, 2022
....................... Subscription required ....................... Subscription required Subscription required Sep 20, 2022
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Staff:

EmployeesContractorsTotal WorkforceYear
Subscription required Subscription required Subscription required 2021
Subscription required Subscription required Subscription required 2020

Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
Environmental Impact Statement 2017
Annual Report 2012
Project Description 2009
Project Description 2000
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