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DRC
Kinsevere Mine

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 Location:
35 km N from Lubumbashi, DRC

  Regional Office:
7409 Avenue de la Révolution
Lubumbashi
DRC
Phone  ...  Subscription required
Fax+243-817-108-143
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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
  • Cobalt
Mining Method
  • Truck & Shovel / Loader
Processing
  • Sulfuric acid (reagent)
  • Counter current decantation (CCD)
  • Acid tank leaching
  • Solvent Extraction & Electrowinning
Mine Life2024


Owners

Source: p. 27, 143
CompanyInterestOwnership
MMG Ltd. 100 % Indirect
MMG Kinsevere SARL 100 % Direct

Deposit Type

  • Sedimentary


Summary:

The Kinsevere Copper deposit is a sedimentary hosted copper deposit. The deposit is hosted in moderately to steeply dipping Neoproterozoic sedimentary formation of the Roan group of the Katanga stratigraphy in the Mine Series subgroup of Katangan African Copper belt.

On surface, the Kinsevere Copper deposit has been mapped as made of three separate Mine Series fragments (large breccia clasts of the Mine Series) whereby the first two fragments are situated along a major N-S oriented fracture and separated by a sinistral strike-slip fault, while the third fragment, called Kinsevere Hill, is situated along major NW-SE fracture and separated from the other fragments by another sinistral strike-slip fault. All these fragments are affected by fractures and breccias.

The sulphide, transitional and oxide mineralisation in the Kinsevere copper deposit are either disseminated in recrystallised layers or infilling bedding plans, reactivated bedding, fractures and joints. Sulphide mineralisation includes chalcopyrite, bornite, chalcocite and pyrite. Oxide mineralization is dominated by malachite with lesser chrysocolla. A transitional zone exists between the primary and oxide zones with both a horizontal trend, controlled by ground water movements, and a sub vertical trend controlled by bedding and structures. Transitional copper species include chalcocite, cuprite, covellite and native copper. This zone is known as the TMO (transitional/mixed ore) zone.


Mining Methods

  • Truck & Shovel / Loader


Summary:

The method for Ore Reserves estimation included: mine dilution modelling, pit optimisation, final pit and phase designs, consideration of mine and mill schedule, all modifying factors and economic valuation.

Kinsevere mine is an open pit operation that is mining and processing oxide copper ore. The operation uses a contract mining fleet of excavators and both rigid body and articulated dump trucks along with a fleet of ancillary equipment.

This mining method is appropriate for the style and size of the mineralisation.

The pit optimisation was based on a mining model based on the 2019 Mineral Resources block model, and the strategy for the final pit selection was based on a revenue factor 1 (RF=1.0). The RF 1.0 pit shell is used across all assets in the MMG Group. Final pit designs incorporating further practical mining considerations were carried out using these optimisation shells.

Mining dilution is based on localised mining dilution modelling with an additional 7% unplanned dilution and 7% unplanned ore loss (was 10% and 5% respectively in 2018 Ore Reserves). The dilution and ore loss modelling were designed to reflect historic reconciliation data (2019 reconciliation study) of areas that are reflective of future mining.

Minimum mining width (bench size) is typically in excess of 45m but is ~35m in some isolated areas during stage development.

No Inferred Mineral Resources material has been included in optimisation and/or Ore Reserves reporting.

All required infrastructure is in place. Mining rates are planned to stay relatively constant and is within the capacity of the existing fleet and mining contractor capability.


Crushing and Grinding


Processing

  • Sulfuric acid (reagent)
  • Counter current decantation (CCD)
  • Acid tank leaching
  • Solvent Extraction & Electrowinning

Flow Sheet: Subscription required

Summary:

Kinsevere mines and processes oxide ore. This enables the operation to use the conventional solvent extraction/electrowinning (SXEW) process (Exhibit 3) to produce A grade refined 99.99% copper cathode.

The Kinsevere operation was commissioned in 2007 as a Heavy Media Separation (HMS) operation with a copper concentrate product. The current SXEW plant was completed in 2011 and the HMS plant was closed.

Elements of the current plant and SXEW process include:

Ore grinding – this uses a single stage SAG mill operating in a closed circuit. This produces a 200 micron feed, which is then directed to the leach tanks. The SAG mill operation is unusual in that sulphuric acid is added to the circuit to start the leach process early in advance of the leach tanks. The leaching process involves the extraction of copper from solid copper oxide using the sulphuric acid solution. Although the acid concentration in the SAG mill circuit is lower than that in the leach t ........

Recoveries & Grades:

CommodityParameter20192018201720162015
Copper Recovery Rate, %  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Copper Head Grade, % 3.043.4443.8
Subscription required - Subscription is required.

Production:

CommodityUnits202020192018201720162015
Copper t  ......  Subscription required ^  ......  Subscription required  ......  Subscription required80,18680,65080,169
All production numbers are expressed as cathode. ^ Guidance / Forecast.
Subscription required - Subscription is required.

Operational Metrics:

Metrics20192018201720162015
Ore tonnes mined  ......  Subscription required  ......  Subscription required  ......  Subscription required2,009,298 t2,207,304 t
Waste  ......  Subscription required  ......  Subscription required  ......  Subscription required4,163,544 t
Tonnes milled  ......  Subscription required  ......  Subscription required  ......  Subscription required2,294,530 t2,183,905 t
Total tonnes mined  ......  Subscription required  ......  Subscription required  ......  Subscription required6,172,842 t
Stripping / waste ratio  ......  Subscription required  ......  Subscription required  ......  Subscription required2
Annual mining capacity  ......  Subscription required  ......  Subscription required  ......  Subscription required2.3 Mt of ore
Annual production capacity  ......  Subscription required  ......  Subscription required  ......  Subscription required80,000 t of copper cathode
Subscription required - Subscription is required.

Reserves at June 30, 2019:

CategoryOreTypeTonnage CommodityGradeContained Metal
Proven & Probable Total 11.9 Mt Copper 2.6 % 307 kt
Total Resource Total 48.4 Mt Copper 2.3 % 1,133 kt
Total Resource Total 49.1 Mt Cobalt 0.1 % 48.3 kt

Commodity Production Costs:

CommodityUnits202020192018201720162015
C1 cash costs Copper USD  ......  Subscription required ^  ......  Subscription required  ......  Subscription required 1.58 / lb 1.3 / lb 1.48 / lb
^ Guidance / Forecast.
Subscription required - Subscription is required.

Financials:

Units20192018201720162015
Revenue M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 418.1  
EBIT M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required -58.3  
EBITDA M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 131.8  
Subscription required - Subscription is required


Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Jun 17, 2020
....................... Subscription required ....................... Subscription required Subscription required Jun 17, 2020
....................... Subscription required ....................... Subscription required Subscription required Jun 17, 2020
....................... Subscription required ....................... Subscription required Subscription required Jun 17, 2020
Subscription required - Subscription is required.

Staff:

Total WorkforceYear
Subscription required 2020
Subscription required 2019
Subscription required 2018
Subscription required 2017
Subscription required 2016

Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2018
................................... Subscription required 2018
................................... Subscription required 2018
Annual Report 2017
Quarterly Report 2017
Sustainability Report 2017
Year-end Mineral Reserves 2017
Annual Report 2016
Project Description 2016
Sustainability Report 2016
Year-end Mineral Reserves 2016
Fact Sheet 2015
Subscription required - Subscription is required.

Aerial view:

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