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DRC
Musonoi Project

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 Location:
0 km W from Kolwezi, DRC

  Project Contacts:
The Mall Offices, 5th Floor 11 Cradock Ave, cnr Baker Street
P O Box 2814, Saxonwold, 2132
Rosebank
South Africa
2196
Phone  ...  Subscription required
WebsiteWeb
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Overview

StageConstruction
Mine TypeUnderground
Commodities
  • Copper
  • Cobalt
Mining Method
  • Cut & Fill
  • Post Pillar Cut & Fill
  • Longhole open stoping
Mine Life19 years (as of Jan 1, 2018)
Construction work at Musonoi Project has progressed well in 1H 2022. The main shaft construction and ventilation shafts were completed in 2021. The 0mL–140mL ramp project was completed in Nov 2021, Construction commenced on the 140mL – 280mL ramp and 140mL-540mL ramp.


Owners

Source: p. 4
CompanyInterestOwnership
Gécamines S.A 25 % Indirect
Jinchuan Group International Resources Co. Ltd. 75 % Indirect

Contractors

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Deposit Type

  • Sediment-hosted
  • Breccia pipe / Stockwork


Summary:

A strike length of 600 m to 700 m has been identified with the deepest drill intersection obtained being 550 m below surface. Mineralisation remains open ended at depth. The mineralisation is typical of that of the Kamoto and KOV Mines with two HG zones.

The mineralised zones consist of talc shales, breccias and siltstones forming part of the meta sedimentary sequence. Copper and cobalt mineralisation is generally in the form of malachite and heterogenite/kolwezite in the oxide portion of the deposit and chalcocite, bornite and carrollite in the deeper sulphide zone. The depth of oxidation is approximately 190 m to 220 m below surface.

The ore body is open ended to depth and no flattening of the dip indicating proximity of the fold closure has been intersected thus far. The solids modelling was extrapolated 50 m east and west of the last drill hole intersection (along strike), and 50 m beyond the last drill hole intersection to depth (down dip).


Mining Methods

  • Cut & Fill
  • Post Pillar Cut & Fill
  • Longhole open stoping


Summary:

The studies indicated that the orebody occurs on the eastern end of the Dilala Syncline and is a blind deposit with high-grade mineralization starting at between 50m and 100m below surface. The orebody has a strike length of 600m to 700m and is open ended at depth below 600m from surface, and will be mined from underground using a long hole stoping mining method and a cut and fill with post pillars mining method.

The Musonoi East deposit comprises two mineralised zones roughly 14 m thick separated by a siliceous dolomite zone which is approximately 20 thick. The sequence dips 70° south and the strike length is approximately 600 m. The stratigraphic sequence has been overturned and the mineralised zone sub-outcrops on a fault some 50 m below surface, which are overlain by RAT strata. The Musonoi Study assumed a depth extent for the orebody of 500 m below surface.

Long Hole open stoping (LHOS)
Drilling, blasting and cleaning longitudinal stopes in the normal sublevel open stoping mode would be followed, but without leaving pillars and working from top downwards. When the stope has been mined to its defined strike length, it is filled with a high density cemented paste that is allowed to cure before adjacent stopes are mined. The optimum strike length at Musonoi Est is 40 m. A temporary holding pillar of 4 to 5 m on strike is left between the stopes and blasted with the slot of the next stope.

Stopes are developed by driving horizont ........


Crushing and Grinding
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Processing

Flow Sheet: Subscription required

Summary:

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Projected Production:

CommodityProductUnitsAvg. Annual
Copper Cathode t 38,000
Cobalt Hydroxide t  ......  Subscription required


Reserves at December 31, 2021:

CategoryOreTypeTonnage CommodityGradeContained Metal
Proven Sulphide & Mixed 8.8 Mt Copper 3 % 266 kt
Proven Oxide 2.7 Mt Copper 3.4 % 91 kt
Proven Sulphide & Mixed 8.8 Mt Cobalt 0.8 % 72 kt
Proven Oxide 2.7 Mt Cobalt 1 % 28 kt
Probable Sulphide & Mixed 8.2 Mt Copper 2.8 % 233 kt
Probable Oxide 0.5 Mt Copper 3.3 % 16 kt
Probable Sulphide & Mixed 8.2 Mt Cobalt 0.9 % 70 kt
Probable Oxide 0.5 Mt Cobalt 0.8 % 4 kt
Proven & Probable Sulphide & Mixed 17 Mt Copper 2.9 % 499 kt
Proven & Probable Oxide 3.2 Mt Copper 3.3 % 107 kt
Proven & Probable Sulphide & Mixed 17 Mt Cobalt 0.8 % 142 kt
Proven & Probable Oxide 3.2 Mt Cobalt 1 % 32 kt
Measured Sulphide & Mixed 12.8 Mt Copper 2.7 % 339 kt
Measured Oxide 4.7 Mt Copper 3.1 % 144 kt
Measured Sulphide & Mixed 12.8 Mt Cobalt 0.8 % 100 kt
Measured Oxide 4.7 Mt Cobalt 1 % 48 kt
Indicated Sulphide & Mixed 13.1 Mt Copper 2.2 % 292 kt
Indicated Oxide 1.2 Mt Copper 1.9 % 22 kt
Indicated Sulphide & Mixed 13.1 Mt Cobalt 0.8 % 107 kt
Indicated Oxide 1.2 Mt Cobalt 0.8 % 9 kt
Inferred Sulphide & Mixed 11.6 Mt Copper 2.2 % 258 kt
Inferred Oxide 1.4 Mt Copper 2 % 29 kt
Inferred Sulphide & Mixed 11.6 Mt Cobalt 0.8 % 88 kt
Inferred Oxide 1.4 Mt Cobalt 0.7 % 10 kt
Total Resource Sulphide & Mixed 37.4 Mt Copper 2.4 % 890 kt
Total Resource Oxide 7.3 Mt Copper 2.7 % 195 kt
Total Resource Sulphide & Mixed 37.4 Mt Cobalt 0.8 % 295 kt
Total Resource Oxide 7.3 Mt Cobalt 0.9 % 68 kt



Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Sep 22, 2022
....................... Subscription required ....................... Subscription required Subscription required Dec 5, 2022
....................... Subscription required ....................... Subscription required Subscription required Dec 5, 2022
Subscription required - Subscription is required.

Staff:

EmployeesYear
Subscription required 2021
Subscription required 2020
Subscription required 2019
Subscription required 2018

Corporate Filings & Presentations:

DocumentYear
Corporate Presentation 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2019
Annual Report 2018
Other 2013
Subscription required - Subscription is required.

Subscription required - Subscription is required.

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