Zambia

Lubambe Mine

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Categories

Overview

Mine TypeUnderground
StatusActive
Commodities
  • Copper
  • Cobalt
Mining Method
  • Longitudinal Room-and-Pillar
  • Longitudinal retreat
Production Start... Lock
Mine Life... Lock
SnapshotThere is currently a 10-year mine life at Lubambe, excluding the Extension Project which has the potential to extend the mine’s life by a further 50 years.

2022 Production numbers have not been available.

Owners

SourceSource
CompanyInterestOwnership
ZCCM Investments Holdings Plc. 20 % Indirect
EMR Capital Group 80 % Indirect
Lubambe Copper Mine Ltd. (operator) 100 % Direct
The Lubambe Copper Mine is 80% owned by EMR Capital Resources, while 20% is held by ZCCM Investments Holdings Plc.

Contractors

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Deposit type

  • Sediment-hosted

Summary:

The Lubambe copper deposit is one of approximately 30 copper/cobalt deposits occurring within the Central African Copperbelt. It is located at the north-western extremity of the Zambian portion of the Copperbelt. The deposit is hosted within sediments that accumulated in an intracratonic rift, which was subsequently closed during the Lufi lian Orogeny. The deposit mineralisation is defined as the ore shale (OS) type of mineralisation. Copper mineralisation is largely hosted within the OS1 Member, whose true thickness varies from 3 to 14 metres. The lower-most 1.5 metres of the OS1 Member contains very little copper, due to leaching which preferentially occurs at the base of the OS1 where the contact between the siltstone and conglomerate/arkose represents a permeability channelway. The transition to greater than 1% total copper (TCu) is abrupt and takes place over centimetres, above a thin red iron oxide-rich marker layer, which probably acted as a redox boundary. The upper contact of the greater than 1% total copper zone (assay hanging wall) is also well-defined in the assay profile, but is not as sharp as the assay footwall contact.

Mineralisation occurs as finely disseminated sulphides along bedding planes and cleavage, in thin veinlets, and in lenticles and stringers, comprising of chalcocite, chalcopyrite, bornite, digenite, covellite, pyrite and carrollite. A large proportion of the nonsulphide copper minerals occur along fractures and veins and consist of malachite, pseudomalachite, chrysocolla, cuprite, azurite and native copper.

Lubambe Extension
The Lubambe Extension resource forms the heart of this supergiant, centrally located within the Konkola-Musoshi basin with producing mines on either flank. To the south-west is the principle asset of Konkola Copper Mines, the famous Konkola underground mine and associated Fitwaola open pit. To the north-west is the active Lubambe underground mine and further still, the inactive Musoshi underground mine in the DRC.

These operations exploit the same stratiform mineralisation that can be traced some 17 km continuously along strike with a maximum thickness of 24 m and grades of up to 15 % TCu. With a footprint of over 40 sq. km and growing, the Konkola-Musoshi basin is already the largest and richest copper deposit in Zambia and one of the finest copper orebodies in the world.

The Lubambe Extension enjoys the predictable geometry and lateral continuity characteristic of the deposit type. Copper mineralisation occurs as disseminated chalcocite hosted within an easily recognisable argillite bed locally referred to as the Ore Shale 1 (OS1). The OS1 in the Lubambe Extension averages 10 m in thickness and >3.6 % TCu with localised zones of cobalt enrichment grading up to 0.2 % TCo.

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

CommodityProductUnits2021202020192018201720162015
Copper Metal in concentrate t  ....  Subscribe  ....  Subscribe23,01523,68918,29920,97325,839

Operational metrics

Metrics2021202020192018201720162015
Annual processing capacity  ....  Subscribe
Ore tonnes mined  ....  Subscribe  ....  Subscribe1,693,854 t1,316,109 t1,005 kt1,221 kt1,599 kt
Waste  ....  Subscribe  ....  Subscribe
Total tonnes mined  ....  Subscribe  ....  Subscribe
Tonnes milled  ....  Subscribe  ....  Subscribe1,677,690 t1,013 kt1,277 kt1,650 kt
Annual production capacity  ....  Subscribe  ....  Subscribe45,000 t of copper metal in concentrate45,000 t of copper metal in concentrate

Production Costs

CommodityUnits2017
C1 cash costs Copper USD 2.45 / lb  

Financials

Units2020201920182017
Capital expenditures M USD
Revenue M USD  ....  Subscribe 74.8   54.2   83.6  
After-tax Income M USD  ....  Subscribe -65.4   -36.7  

Heavy Mobile Equipment

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AV - Autonomous

Personnel

Mine Management

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Aug 7, 2023
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....................... Subscription required ....................... Subscription required Subscription required Sep 25, 2023
....................... Subscription required ....................... Subscription required Subscription required Aug 7, 2023
....................... Subscription required ....................... Subscription required Subscription required Aug 7, 2023

EmployeesContractorsTotal WorkforceYear
...... Subscription required 2021
...... Subscription required ...... Subscription required ...... Subscription required 2019
...... Subscription required 2017
...... Subscription required ...... Subscription required 2016
...... Subscription required ...... Subscription required 2015
...... Subscription required ...... Subscription required 2014

Aerial view:

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