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Zambia
Kansanshi Mine

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 Location:
9 km NE from Solwezi, Zambia

  Regional Office:
Old Congo Road
P.O. Box 110385
Solwezi
Zambia
40100
Phone  ...  Subscription required
Fax+260 212 658203
WebsiteWeb
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeOpen Pit
Commodities
  • Copper
  • Gold
Mining Method
  • Truck & Shovel / Loader
Processing
  • Sulfuric acid (reagent)
  • Gravity separation
  • Smelting
  • Flotation
  • High Pressure Acid Leach (HPAL)
  • Acid tank leaching
  • Solvent Extraction & Electrowinning
Mine Life23 years (as of Jan 1, 2019)
.
Latest NewsFirst Quantum Minerals Files Updated NI 43-101 for Kansanshi     September 14, 2020


Owners

Source: p. 15
CompanyInterestOwnership
ZCCM Investments Holdings Plc. 20 % Indirect
First Quantum Minerals Ltd. 80 % Indirect
Kansanshi Mining Plc 100 % Direct
The First Quantum Minerals Ltd. has an 80% interest in Kansanshi which it holds through a subsidiary, Kansanshi Mining PLC (“KMP”). The
remaining 20% is owned by a subsidiary of ZCCM

Deposit Type

  • Vein / narrow vein
  • Hydrothermal


Summary:

Kansanshi mineralisation occurs as hydrothermal, structurally controlled, vein and strata hosted copper deposits.

The Kansanshi deposit, currently mined from the Main Pit and the North West Pit, is hosted by deformed metasediments of the Lower Kundulungu Group, within the Katanga Supergroup of the Zambian Central African Copperbelt. The individual rock units of the stratigraphic sequence comprise dolomites, dolomitic marbles, and various schists and phyllites. The recently defined South East Dome and Rocky Hill deposits, in the south east of the tenement area, are similarly hosted but separated from the Main Pit by a structural discontinuity.

Copper mineralisation at Kansanshi occurs within two domal structures along the crest of a regional antiform. These domes are closely associated with the deposit mineralisation been mined in the Main and North West Pits. Three styles of primary sulphide mineralisation are associated with these domes:
* stratified and disseminated mineralisation
* vertically dipping, quartz-carbonate-sulphide veins crosscutting the stratigraphy
* breccia mineralisation

Oxidation of primary mineralisation is associated with depth of weathering, and is reflected as:
* nearer surface weathering around vertical veins, with oxide mineralisation evident as malachite and tenorite
* mixed mineralisation, with a wide variety of copper ore mineralogy, occurs in a wide transitional zone between the base of complete oxidation and the top of fresh rock

Mineralisation at South East Dome and Rocky Hill occur as higher grades associated with near vertical brecciation and veins as well as lower grades associated with stratigraphic controlled mineralisation.

Primary copper sulphide mineralisation is dominated by chalcopyrite, with very minor bornite and is accompanied by relatively minor pyrite and pyrrhotite. Oxide mineralisation is dominated by chrysocolla with malachite, limonite and cupriferous goethite. The mixed zone includes both oxide and primary mineralisation but also carries significant chalcocite, minor native copper and tenorite. Some copper appears to be hosted in clay and mica minerals, and is essentially refractory. Gold mineralisation appears to occur in association with copper.


Mining Methods

  • Truck & Shovel / Loader


Summary:

Open pit mining at Kansanshi is based on conventional drill and blast, load and haul mining techniques. Mining has proceeded from initial excavations in two pits (Main and North West) through a sequence of cutbacks, which in the longer term will result in these pits merging. A newly defined, nearby resource at South East Dome will contribute to the longer term production profile, but is unlikely to merge with the other two pits.

The cutbacks generally comprise wide benches of 200 metres to 300 metres width, providing several mining horizons to satisfy the feed requirements for multiple processing routes. The bench heights within the pits are designed on either 5 metres to 10 metres depending on geotechnical constraints. In general, ore is hauled to a ROM Pad located immediately south of the North West pit where it is either tipped directly into the crushers or stockpiled for future rehandling if required.

Waste is hauled to various dumps around the northern and southern extremities of the Main pit, around the western, northern and eastern extremities of the North West pit, and to the northern, eastern and southern extremities of the future South East Dome pit.

Dewatering of the Main pit is currently carried out by means of a 4.1m diameter vertical raise bored shaft to the east of Main pit which has been effective in lowering the groundwater surface below the level of the current base of the Main pit. A project is currently underway to deepen the current dewatering system to cater for the deepening of Main pit. Water pumped from the vertical raise bored shaft is piped to a storage dam to supplement the process water demand. Dewatering of the North West pit is currently carried out by means of collection and pumping from in-pit sumps.

The Kansanshi mining fleet comprises diesel powered production drills, various sized hydraulic excavators and electric shovels, diesel powered and diesel-electric powered haul truck trucks and various ancillary equipment to support mining operations. Mining is carried out by the Company’s own equipment fleet.

The prime focus for future mining is to maximize the efficient use of grid electrical power throughout the mining process, coupled with bulk mining systems to ensure that unit costs can be minimized. Initially, this strategy has been met with the installation of trolley-assist equipment for a portion of the truck fleet.


Crushing and Grinding


Processing

  • Sulfuric acid (reagent)
  • Gravity separation
  • Smelting
  • Flotation
  • High Pressure Acid Leach (HPAL)
  • Acid tank leaching
  • Solvent Extraction & Electrowinning

Flow Sheet: Subscription required

Summary:

The Kansanshi process plant has been designed to operate with a high degree of flexibility to suit the various ore types delivered from the mined orebodies. The three main process routes are for treating sulphide, mixed and oxide ores independently. The flexibility of the circuitry, however, allows any ore type to be treated through any of the three circuits. This allows balancing of the tonnages as each circuit has a different inherent capacity.

Mixed float and mixed leach ores are treated via crushing, milling, flotation, sulphuric acid leaching and the SXEW process to produce cathode copper. The ore is treated with a sulphidising agent, NaHS (sodium hydrosulphide) to assist with flotation to recover a proportion of acid-insoluble copper minerals and gold. The concentrate so produced is filtered (pressure filters) and sold along with concentrate from the separate sulphide and mixed ore processing plants.

Sulphide ore is treated via crushing, milling and flotatio ........


Production:

CommodityProductUnits202020192018201720162015
Gold Metal in doré oz  ......  Subscription required ^  ......  Subscription required  ......  Subscription required140,595148,220136,257
Total copper t  ......  Subscription required ^  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Copper Cathode t  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Copper Metal in concentrate t  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
^ Guidance / Forecast.
Subscription required - Subscription is required.

Operational Metrics:

Metrics201920182017201620152014
Ore tonnes mined  ......  Subscription required  ......  Subscription required  ......  Subscription required31,679 kt34,105 kt26,945 kt
Waste  ......  Subscription required  ......  Subscription required  ......  Subscription required74,935 kt70,729 kt54,966 kt
Stripping / waste ratio  ......  Subscription required  ......  Subscription required  ......  Subscription required3
Tonnes processed  ......  Subscription required  ......  Subscription required  ......  Subscription required27,017 kt26,040 kt25,334 kt
Subscription required - Subscription is required.

Reserves at December 31, 2019:

CategoryOreTypeTonnage CommodityGrade
Proven In-Situ (OP) 59.8 Mt Copper 0.51 %
Proven In-Situ (OP) 59.8 Mt Gold 0.1 g/t
Probable Stockpiles 119.3 Mt Copper 0.46 %
Probable In-Situ (OP) 448.2 Mt Copper 0.66 %
Probable In-Situ (OP) 448.2 Mt Gold 0.12 g/t
Proven & Probable Stockpiles 119.3 Mt Copper 0.46 %
Proven & Probable In-Situ (OP) 508 Mt Copper 0.64 %
Proven & Probable Total 627.3 Mt Copper 0.61 %
Proven & Probable In-Situ (OP) 508 Mt Gold 0.11 g/t
Measured In-Situ (OP) 55.3 Mt Copper 0.57 %
Measured In-Situ (OP) 55.3 Mt Gold 0.11 g/t
Indicated In-Situ (OP) 627.4 Mt Copper 0.67 %
Indicated In-Situ (OP) 627.4 Mt Gold 0.11 g/t
Indicated Stockpiles 119.3 Mt Copper 0.46 %
Measured & Indicated In-Situ (OP) 682.7 Mt Copper 0.67 %
Measured & Indicated In-Situ (OP) 682.7 Mt Gold 0.11 %
Measured & Indicated Stockpiles 119.3 Mt Copper 0.46 %
Inferred In-Situ (OP) 660.8 Mt Copper 0.59 %
Inferred In-Situ (OP) 660.8 Mt Gold 0.09 g/t

Commodity Production Costs:

CommodityUnits201920182017201620152014
Credits (by-product) Copper USD  ......  Subscription required  ......  Subscription required -0.27 / lb -0.3 / lb -0.26 / lb -0.27 / lb
All-in sustaining costs (AISC) Copper USD  ......  Subscription required†  ......  Subscription required† 1.54 / lb† 1.57 / lb† 2.22 / lb†
C1 cash costs Copper USD  ......  Subscription required†  ......  Subscription required† 1.05 / lb† 1.15 / lb† 1.38 / lb† 1.63 / lb†
C3 fully allocated costs Copper USD  ......  Subscription required†  ......  Subscription required† 1.71 / lb† 1.78 / lb† 2.28 / lb† 2.16 / lb†
† Net of By-Product.
Subscription required - Subscription is required.

Financials:

Units2020201920182017201620152014
Capital expenditures (planned) M USD  ......  Subscription required
Capital expenditures M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 324   697  
Revenue M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 1,285   1,678  
Operating Income M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required -16  
Gross profit M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 112   512  
EBITDA M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 266   647  
Subscription required - Subscription is required


Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required May 27, 2020
....................... Subscription required ....................... Subscription required Subscription required May 27, 2020
....................... Subscription required ....................... Subscription required Subscription required May 27, 2020
....................... Subscription required ....................... Subscription required Subscription required May 27, 2020
Subscription required - Subscription is required.

Staff:

Total WorkforceYear
Subscription required 2017
Subscription required 2016
Subscription required 2015

Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2018
................................... Subscription required 2018
Annual Report 2017
Annual Report 2016
Annual Report 2016
Annual Report 2015
Technical Report 2015
Year-end Mineral Reserves 2013
Subscription required - Subscription is required.

News:

NewsDate
First Quantum Minerals Files Updated NI 43-101 for Kansanshi September 14, 2020

Aerial view:

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