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Australia
Rasp Mine

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 Location:
0 km from Broken Hill, New South Wales, Australia

  Address:
130 Eyre Street
PO Box 5073
Broken Hill
New South Wales, Australia
2880
Phone  ...  Subscription required
Fax+61-8-8088-3392
WebsiteWeb
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeUnderground
Commodities
  • Zinc
  • Lead
  • Silver
Mining Method
  • Longhole open stoping
Production Start...
Mine Life10 years (as of Jan 1, 2021)


Owners

Source: p. 2
CompanyInterestOwnership
Toho Zinc Co. Ltd. 100 % Indirect

Contractors

Subscription required - Subscription is required.


Deposit Type

  • Sedimentary


Summary:

The ore deposits at RASP Mine are hosted by a sequence of Proterozoic meta-sedimentary rocks.

Current mining operations are primarily focused on the extraction of the Western Mineralisation (WM), combined with lesser quantities of high grade remnants of 2 and 3 Lens, and Zinc Lodes that are associated with the original Main Lode.

The original unmined WM contained a global resource of approximately 15Mt at a combined PbZn grade of 6.0%. However, current mining operations are focused on extraction of areas of higher grade material.

The WM extends from approximately 100m below the surface to a depth of near 900m, where the deposit terminates against the Globe Vauxhall Shear. Mineralisation identified below this structure is associated with the Centenary Deposit which still remains open at depth.


Mining Methods

  • Longhole open stoping


Summary:

Mining operations are undertaken predominantly by an owner/operator workforce, with contractors being utilised to undertake specialised support services including fibrecrete and diamond drilling. Current mining rates are in the order of 60,000t per month for a 100% trucking operation to the surface.

Mining involves development drives similar to a tunnel to access the orebody and ore is extracted by the excavation of large underground voids called stopes. Underground stoping production is dependent on the ore geometry and geotechnical parameters. Stope techniques employed at Rasp Mine include longhole open stoping, modified avoca, cut-and fill and room-and-pillar. Approximately 60 stopes are extracted per annum with mining depth at approximately 500 metres below the surface.

Once the ore has been extracted, waste material from the mining operation is used to backfill these voids. Currently this is in the form of unconsolidated waste material (rockfill) with the aim to utilise the existing sandplant in the manufacture of hydraulic fill in the near future.


Crushing and Grinding
Source: Subscription required


Processing

Source: Subscription required

Summary:

- subscription is required.


Production:

CommodityProductUnits2021 *2020 *2017
Zinc Metal in concentrate t  ......  Subscription required *  ......  Subscription required
Lead Metal in concentrate t  ......  Subscription required *  ......  Subscription required
Silver Metal in concentrate koz  ......  Subscription required *  ......  Subscription required
Zinc Concentrate kt 54
Lead Concentrate kt  ......  Subscription required
* Average annual production reported in 2020
Subscription required - Subscription is required.

Operational Metrics:

Metrics202120202019
Ore tonnes mined  ......  Subscription required  ......  Subscription required649,902 dmt
Annual processing capacity  ......  Subscription required  ......  Subscription required
Subscription required - Subscription is required.

Reserves at December 31, 2020:

CategoryTonnage CommodityGrade
Total Resource 15 Mt Lead / Zinc 6 %



Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Sep 15, 2022
....................... Subscription required ....................... Subscription required Subscription required Sep 15, 2022
....................... Subscription required ....................... Subscription required Subscription required Sep 15, 2022
....................... Subscription required ....................... Subscription required Subscription required Sep 15, 2022
....................... Subscription required ....................... Subscription required Subscription required Sep 15, 2022
....................... Subscription required ....................... Subscription required Subscription required Sep 15, 2022
....................... Subscription required ....................... Subscription required Subscription required Sep 15, 2022
....................... Subscription required ....................... Subscription required Subscription required Sep 15, 2022
Subscription required - Subscription is required.

Staff:

Total WorkforceYear
Subscription required 2021
Subscription required 2020
Subscription required 2019

Corporate Filings & Presentations:

DocumentYear
Environmental Impact Statement 2022
................................... Subscription required 2021
................................... Subscription required 2021
Annual Report 2018
Subscription required - Subscription is required.

Subscription required - Subscription is required.

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