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South Africa
Zandfontein (CRM) Mine

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 Location:
10 km S from Brits, South Africa

  Address:
Old Zandfontein Road
Brits
South Africa
0250
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Financials
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeTailings
Commodities
  • Chrome
  • Cr2O3
  • Platinum
  • Palladium
  • Rhodium
  • Gold
Mining Method
  • Truck & Shovel / Loader
  • Hydraulic mining
Production Start...
Mine Life2024
The current mine lease area includes two operating mining sections (the Zandfontein and Maroelabult sections) and two development sections (the Crocette and Kareespruit sections). The Maroelabult section was sold with the finalization of the sale announced on March 22, 2022.

During 2020, the Company completed the refurbishment of the small-scale PGM Circuit D (previously the scavenger plant circuit) (“PGM Circuit D”). The Company generated approximately 134 tons of pressed filter cake PGM concentrate and delivered approximately 32 dry tons during 2020. Refurbishment work commenced on the PGM circuit B in the main plant (“PGM Main Circuit B”) during April 2021 and the circuit was commissioned in October 2021.

The initial processing of the UG2 chromitite ore from the Zandfontein underground is expected to be in the first quarter of 2023.


Owners

Source: p. 31
CompanyInterestOwnership
Gubevu Consortium Investment Holdings (Pty) Ltd. 12.5 % Indirect
Eastern Platinum Ltd. 87.5 % Indirect
Barplats Mines Ltd (operator) 100 % Direct
The Eastern Platinum Ltd. holds directly and indirectly an 87.5% interest in CRM, through Barplats Investments (Pty) Ltd.

Contractors

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Deposit Type

  • Tailings
  • Intrusion related


Summary:

Zandfontein UG2 TSF
The tailings have been deposited in the TSF from 1980 until 2013, when the mine went on Care and Maintenance. The material in the TSF was primarily derived from the processing of UG2 Chromitite ore. The tailings deposited in the TSF, originated as fines after milling and extracting the PGEs concentrates. Therefore the Cr2O3, PGEs and Au mineralisation that is now being targeted in the tailings, originates from within the UG2 chromitite seam itself. Some of the tailings were later reprocessed at Barplats to extract a limited amount of the Cr2O3 (an estimated at 1%-2% was processed) and PGEs (estimated at a grade of 0.2 g/t) and then re-deposited in the new front compartment of the tailings dam (Figure 9). The tailings also contain silicate material and minor amounts of base sulphide minerals or their oxidized products.

The average Cr2O3 and FeO contents (derived from 246 tailings samples) for the the Project are; 20.72% and 15.65% respectively. The average of Cr to Fe ratio on the TSF in Domain 101 is 1.35 and in Domain 102 1.28. The chromium oxide present in the tailings is in the form of chromite grains that have been liberated during the crushing and milling of the chromitite ore. The Au is expected to be present as very fine grained particles that were released after the oxidation of the primary sulphide minerals. It is assumed that the major silicate minerals present are pyroxene (enstatite/bronzite composition) and plagioclase feldspa ........


Mining Methods

  • Truck & Shovel / Loader
  • Hydraulic mining


Summary:

Barplats’ preference is not to establish a new TSF (Tailing Storage Facility) and so the strategy is for the tailings from the plant to be placed back onto the footprint of the existing TSF while it is being exploited. The TSF has been divided into six areas as part of a strategy to exploit the total volume of tailings material.

Hydraulic mining and Mechanical loading of material on the north-western section will start simultaneously. The associated tailings from the plant following processing will be re- deposited using the cyclone method.

Mechanical loading is necessary in the coarse area of the TSF where material is chemically bonded in layers, which is not able to be hydraulically broken down to the minus 3mm fraction, which is the maximum plant feed size.

Mining Methodology.
Modelling was used to determine the most suitable technique for mining the TSF. The methodology involves continual and simultaneous cleaning, construction, hydraulic mining and deposition activities.

Certain areas need to be excavated using mechanised equipment (i.e. coarser harder material) while other sections of the TSF can be mined hydraulically (i.e. finer softer material).

Mechanised Operations.
Coarse material will be excavated, using a dry mechanised mining method.

The mechanically mined material will be trucked to a scalping screen, which will dry screen the vegetation from the material, after which it will pass thro ........


Crushing and Grinding


Processing

Flow Sheet: Subscription required

Summary:

- subscription is required.


Production:

CommodityUnits202120202019
Chrome kt  ......  Subscription required  ......  Subscription required  ......  Subscription required
PGM kt  ......  Subscription required  ......  Subscription required
All production numbers are expressed as concentrate.
Subscription required - Subscription is required.

Operational Metrics:

Metrics202120202019
Ore tonnes mined  ......  Subscription required  ......  Subscription required1,778,525 tons
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Reserves at September 1, 2017:
No changes in mineral resources were reported on 4/5/2021.

CategoryTonnage CommodityGradeContained Metal
Proven 6.25 Mt Cr2O3 22.42 % 1.4 Mt
Probable 0.18 Mt Cr2O3 20.28 % 0.04 Mt
Proven & Probable 6.42 Mt Cr2O3 22.36 % 1.44 Mt
Measured & Indicated 13.68 Mt Cr2O3 20.72 % 2.834 Mt
Measured & Indicated 13.68 Mt Platinum 0.742 g/t
Measured & Indicated 13.68 Mt Palladium 0.307 g/t
Measured & Indicated 13.68 Mt Rhodium 0.169 g/t
Measured & Indicated 13.68 Mt Gold 0.008 g/t 3,404 oz
Measured & Indicated 13.68 Mt 3E (Pt, Pd, Au) 1.218 g/t 535,520 oz

Financials:

Units2021202020192018
Revenue M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 0.4  
Operating Income M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required
Pre-tax Income M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required -24.4  
After-tax Income M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required -24.3  
Subscription required - Subscription is required



Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Mar 30, 2022
....................... Subscription required ....................... Subscription required Subscription required Mar 30, 2022
Subscription required - Subscription is required.

Staff:

EmployeesTotal WorkforceYear
Subscription required 2021
Subscription required 2020
Subscription required 2019
Subscription required 2017

Corporate Filings & Presentations:

DocumentYear
Technical Report 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
Annual Information Form 2018
Technical Report 2017
Subscription required - Subscription is required.

Subscription required - Subscription is required.

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