Mining Intelligence and News
Australia

Rasp Mine

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Overview

Mine TypeUnderground
StatusActive
Commodities
  • Zinc
  • Lead
  • Silver
Mining Method
  • Room-and-pillar
  • Open stoping
  • Bench stoping
  • Pillar extraction
  • Longhole open stoping
  • Cut & Fill
  • Avoca
Backfill type ... Lock
Production Start... Lock
Mine Life... Lock
SnapshotThe operations at the Rasp Mine include underground mining operations, a processing plant producing zinc and lead concentrates.

Toho Zinc advised the market on the 10th November 2023, following a thorough review of the business plan of Rasp Mine, that it is not in a position to invest in the further development to sustain the operation in the medium to long term period and it would be realising a significant financial impairment for the Rasp Mine assets. The Broken Hill Operations (BHO) will move to a staged closure during 2023 / 24 and fulfil the rehabilitation obligations beyond this period.

On July 26, 2024, eight months of uncertainty, mine's workers were told that the mine would bought by the newly formed Broken Hill Mines Limited (BHM). Broken Hill Mines is focused on the development and operation of silver, lead [and] zinc assets in the Broken Hill region.

Owners

SourceSource
CompanyInterestOwnership
Toho Zinc Co. Ltd. 100 % Indirect
Broken Hill Operations Pty Ltd. (operator) 100 % Direct
The CBH Resources Limited is a wholly owned subsidiary of Toho Zinc Co., Ltd.

Broken Hill Operations Pty Ltd, a wholly owned subsidiary of CBH Resources Limited, owns and operates the Rasp Mine.

On July 26, 2024, CBH Resources entered into a binding agreement with Broken Hill Mines Limited, which will see BHM acquire 100 percent of the mine and its assets by October 31, 2024.

Deposit type

  • Sedimentary

Summary:

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

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, 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.

Reserves

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Mining Methods

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Comminution

Crushers and Mills

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Processing

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Production

CommodityProductUnits2023202220212020201920182017
Zinc Metal in concentrate t  ....  Subscribe
Lead Metal in concentrate t  ....  Subscribe
Silver Metal in concentrate koz  ....  Subscribe  ....  Subscribe  ....  Subscribe
Zinc Concentrate kt  ....  Subscribe  ....  Subscribe  ....  Subscribe486054
Lead Concentrate kt  ....  Subscribe  ....  Subscribe  ....  Subscribe253326
* Production numbers were reported as 'Average annual'

Operational metrics

Metrics202320222021202020192018
Annual processing capacity  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe
Ore tonnes mined  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe649,902 dmt737,468 dmt
Waste  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe492,498 t452,445 t
Tonnes processed  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe651,305 t737,468 t

Production Costs

Commodity production costs have not been reported.

Heavy Mobile Equipment

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Personnel

Mine Management

Job TitleNamePhoneEmailProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Aug 31, 2024
....................... Subscription required ....................... Subscription required ........... Subscription required ........... Subscription required Subscription required Sep 12, 2024
....................... Subscription required ....................... Subscription required ........... Subscription required ........... Subscription required Subscription required Sep 12, 2024
....................... Subscription required ....................... Subscription required Subscription required Sep 3, 2024
....................... Subscription required ....................... Subscription required Subscription required Sep 3, 2024

Total WorkforceYear
...... Subscription required 2023
...... Subscription required 2022
...... Subscription required 2021
...... Subscription required 2020
...... Subscription required 2019

Aerial view:

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