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Zambia
Lumwana Mine

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 Location:
431 km NW from Lusaka, Zambia

  Regional Office:
1st Floor, May Building The Gallery Office Park Stand No. 4015 Lagos Road
PO Box 50628 Ridgeway
Lusaka
Zambia
10101
Phone  ...  Subscription required
Fax260-21-1257642
WebsiteWeb
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  • Overview
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  • Costs & Financials
  • Fleet
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeOpen Pit
Commodities
  • Copper
Mining Method
  • Truck & Shovel / Loader
Production Start...
Mine Life25 years (as of Jan 1, 2014)


Owners

Source: p. 7
CompanyInterestOwnership
Barrick Gold Corp. 100 % Indirect
Lumwana Mining Co., Ltd. (operator) 100 % Direct
Barrick owns 100% of Lumwana mine through Lumwana Mining Company Limited.

Contractors

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Deposit Type

  • Sediment-hosted


Summary:

The Lumwana Project contains two major copper deposits, Malundwe and Chimiwungo, which are structurally controlled shear zone hosted deposits considered to be an end member of Central African Copperbelt class of deposits. These copper + cobalt + gold + uranium deposits are hosted within the Mwombezhi Dome, which is a northeast trending basement dome in the western arm of the Lufilian Arc thrust fold belt.

In Zambia, the Lufilian Arc contains variably deformed and metamorphosed Late Proterozoic metasediments and volcanics of the Katangan Lower and Upper Roan, Mwashia, Nguba, and the Kundelungu supergroups, which unconformably overly the basement. The basement consists of older metamorphosed gneisses, schists, migmatites, amphibolites and granitoids. Subsequent to the deposition of the Katangan sequences, the basin was inverted, deformed, metamorphosed, and uplifted by generally north directed thrusting and folding to produce the late Neoproterozoic – Cambrian Lufilian Arc.

The copper mineralization at Malundwe and Chimiwungo is hosted almost entirely within high grade metamorphosed, intensely mylonitized, recrystallized muscovite–phlogopite–quartz–kyanite schists with disseminated sulphides (typically <5%) dominated by chalcopyrite and bornite which is locally referred to as Mineralized Ore Schist. The distribution of copper mineralization is controlled by visibly identifiable stratabound geology, within which copper grades are consistent. Optimal grade c ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

There are two mining areas; Malundwe and Chimiwungo, which are 7 km apart in a direct line. Malundwe was the first pit to be mined, commencing in 2008. However Chimiwungo now contains 93% of the remaining reserves. The Chimiwungo mining area consists of three separate pits; South, Main and East. Malundwe was the first pit to be mined, commencing in 2008. However Chimiwungo now contains 93% of the remaining reserves. The Chimiwungo mining area consists of three separate pits; South, Main and East.

Sulphide copper ore at Lumwana is mined by open pit methods that follow the typical sequence of tasks: grade control drilling, blasthole drilling, blasting, loading by hydraulic shovels (15 m3 and 27 m3 ), and hauling by off-highway trucks (254 t). The mine started operations in 2008, and now mines an average daily capacity of 260,000 t of total material mined. Mining is done primarily by Lumwana personnel and equipment; however production is also supplemented by a contractor with specialized small articulated fleet of trucks to meet pre-stripping requirements, particularly the stripping of weathered material in the wet season. They use 40 tonne capacity Volvo articulated trucks and 90 tonne tracked excavators. The contractors move 45,000 tonnes per day and are scheduled by the Lumwana Mine Engineering Department to coordinate material movements.


Crushing and Grinding
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Processing

Flow Sheet: Subscription required

Summary:

- subscription is required.


Production:

CommodityUnits2022202120202019201820172016
Copper M lbs  ......  Subscription required ^  ......  Subscription required  ......  Subscription required  ......  Subscription required224256271
All production numbers are expressed as metal in concentrate. ^ Guidance / Forecast.
Subscription required - Subscription is required.

Operational Metrics:

Metrics202120202019201820172016
Total tonnes mined  ......  Subscription required  ......  Subscription required86,067 kt74,257 kt76,343 kt62,853 kt
Ore tonnes mined  ......  Subscription required  ......  Subscription required23,230 kt23,115 kt24,949 kt
Waste  ......  Subscription required  ......  Subscription required62,837 kt51,142 kt51,394 kt
Stripping / waste ratio  ......  Subscription required  ......  Subscription required2.7 2.21 2.06 1.4
Tonnes processed  ......  Subscription required  ......  Subscription required24,936 kt21,861 kt23,447 kt2,169 kt
Daily mining rate  ......  Subscription required  ......  Subscription required172 kt
Daily processing capacity  ......  Subscription required  ......  Subscription required65 kt
Daily processing rate  ......  Subscription required  ......  Subscription required59.3 kt
Annual processing capacity  ......  Subscription required  ......  Subscription required
Subscription required - Subscription is required.

Reserves at December 31, 2021:

CategoryTonnage CommodityGradeContained Metal
Proven 68 Mt Copper 0.51 % 770 M lbs
Probable 410 Mt Copper 0.58 % 5,200 M lbs
Proven & Probable 470 Mt Copper 0.57 % 6,000 M lbs
Measured 93 Mt Copper 0.51 % 1,000 M lbs
Indicated 880 Mt Copper 0.54 % 10,000 M lbs
Inferred 7.6 Mt Copper 0.6 % 93 M lbs

Commodity Production Costs:

CommodityUnits2022202120202019201820172016
All-in sustaining costs (AISC) Copper USD  ......  Subscription required&nbs  ......  Subscription required  ......  Subscription required  ......  Subscription required 3.08 / lb   2.35 / lb   1.97 / lb  
C1 cash costs Copper USD  ......  Subscription required&nbs  ......  Subscription required  ......  Subscription required  ......  Subscription required 2.08 / lb   1.66 / lb   1.44 / lb  
^ Guidance / Forecast.
Subscription required - Subscription is required.

Operating Costs:

Units20162015
OP mining costs ($/t mined) USD 3.363.65
Processing costs ($/t milled) USD  ......  Subscription required  ......  Subscription required
Subscription required - Subscription is required.

Financials:

Units202120202019201820172016
Capital expenditures M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 154   123   96  
Sustaining costs M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 154   123   96  
Subscription required - Subscription is required


Pipelines
TypeMaterialDiameterLengthDescription


Heavy Mobile Equipment:
HME TypeModelSizeQuantityLeased or
Contractor
Ref. Date
Excavator 90 t Leased Mar 27, 2014
Shovel (hydraulic) ....................... Subscription required ....................... Subscription required Dec 31, 2017
Shovel (hydraulic) ....................... Subscription required 27 cu. m ....................... Subscription required Feb 22, 2017
Truck (dump) ....................... Subscription required 40 Leased Mar 27, 2014
Truck (haul) ....................... Subscription required 254 t ....................... Subscription required Feb 22, 2017
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Aug 8, 2022
....................... Subscription required ....................... Subscription required Subscription required Aug 8, 2022
....................... Subscription required ....................... Subscription required Subscription required Aug 8, 2022
....................... Subscription required ....................... Subscription required Subscription required Aug 8, 2022
....................... Subscription required ....................... Subscription required Subscription required Aug 8, 2022
....................... Subscription required ....................... Subscription required Subscription required Aug 8, 2022
....................... Subscription required ....................... Subscription required Subscription required Aug 8, 2022
....................... Subscription required ....................... Subscription required Subscription required Aug 8, 2022
Subscription required - Subscription is required.

Staff:

EmployeesContractorsTotal WorkforceYear
Subscription required Subscription required Subscription required 2019

Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
Other 2018
Quarterly Report 2018
Operations & Technical Update 2017
Other 2017
Quarterly Report 2017
Management Discussion & Analysis 2016
Press Release 2016
Fact Sheet 2015
Annual Report 2014
Corporate Presentation 2014
Technical Report 2014
Technical Report 2012
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