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South Africa
Bafokeng Rasimone Mine

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 Location:
25 km N from Rustenburg, South Africa

  Address:
The Pivot No 1 Monte Casino Boulevard Block C 4th floor
P O Box 2283 Fourways 2055
Fourways
South Africa
Phone  ...  Subscription required
Fax0862-109-421
WebsiteWeb
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeUnderground
Commodities
  • PGM
  • Gold
  • Platinum
  • Palladium
  • Rhodium
Mining Method
  • Breast stoping with strike pillars
Processing
  • Flotation
Mine Life30 years (as of Jan 1, 2020)


Owners & OPERATOR

Source: p. 4
CompanyInterestOwnership
Royal Bafokeng Platinum Ltd. 100 % Indirect
Royal Bafokeng Resources (Pty) Ltd. (operator) 100 % Direct

Deposit Type

  • Magmatic


Summary:

RBPlat is located on the Western Limb of the BIC, one of the three main portions or limbs which all comprise similarities in their formation, economic potential and type of commodity. The Bushveld Complex formed approximately 2.04 billion years ago, comprising three main suites, namely the Rooiberg Group, Lebowa Granite Suite and the Rustenburg Layered Suite. The Rustenburg Layered Suite comprises four main zones (the upper, main, critical and lower zones) with each zone characterized by signature igneous intrusive layering, known as stratigraphy. The critical zone hosts the platinum group element (PGE) bearing reef (the economically important layer) types of the Merensky reef and the Upper Group 2 reef (UG2). RBPlat’s operations mines Merensky and UG2 reefs.

The western extremity of the Maseve ore body subcrops 190m below surface. The northern boundry is the operational Wesizwe Platinum’s mining right area, and the remainder of the ore body borders RBPlat operations.

Proximity of the basement (and possibly its paleotopography) to the Merensky and UG2, by and large influenced the geometry and succession of the local stratigraphy, which primarily resulted from local basement upliftment. Upliftment caused the folded or rolling nature of the stratigraphic geometries which are preserved as anticlines and synclines. The frequency of the rolling towards the west becomes narrower with steeper dips resulting in some of the stratigraphic units not developed. The implication of the folding and or rolling nature of the stratigraphy results in opposite dip directions (westerly and easterly) with wide ranges of dip-regimes that exist. The aforementioned is contrary to traditional narrow tabular Merensky and UG2 stratigraphy with recognized local changes in the planarity of the ore bodies, which are mostly related to the different fancies types.

The Merensky and UG2 reefs are both sulphide enriched with the Merensky reef being the main economic horizon mined at RBPlat. The PGMs (platinum (Pt), palladium (Pd), rhodium (RH), osmium (Os), ruthenium (Ru)) as well as gold (Au) are found mostly within the sulphide minerals and include varieties of copper (Cu) and nickel (Ni) as accompanying base metals. The reef horizons dip towards the north-eastern direction between 50 and 120 . The steeper dips are in the north-eastern part of the Styldrift, with the shallower dips presents in the center and western of the farm.

The average depth of the Merensky reef is 505 metres below surface (mbs), with RBPlat having the advantage of being the Merensky reef dominant relatively mine. The newly operational Styldrift I shaft ore from a 50 dipping Merensky reef horizon at an average depth of 712mbs.

The Merensky reef across the RBPlat operational area comprises six different geological facies types, from west to east, namely the Abutment, Terrace, Central, Normal, Normal Thick and Main reef facies. Merensky reef facies delineation of the Maseve ore body ties in with the regional RBPl at Merensky reef facies; Abutment facies (divided into shallow Abutment, deep Abutment and transition to Terrace facies) on the most western side and Terrace facies further east towards the Styldrift I shaft area. Each facies type exhibits unique geological, geochemical and mineralization characteristics which has a fundamental role in planning the optimized mining method. The predominant facies type at Maseve Mine is the Abutment facies, which is commonly associated with intrusions.

The vertical separation between the Merensky and the UG2 reefs varies from an average 80m at BRPM to 50m around the Styldrift I shaft area and decreases to an estimated minimum of 25m in the far north-eastern region of the mining area (Styldrift II). This is due the overall thinning of the critical zone of the Bushveld Complex, in a north-eastern direction towards the Pilanesberg Complex. The UG2 ore body has been classified and subdivided into three main facies types based on the occurrence of the position of the leader UG2 chromitite bands in the hangingwall of the dominant mineralized main chromitite band. These facies variations are encountered on apparent dip in a north- eastern direction, ranging from the Central high facies, Leader facies and General facies, from the shallowest to deepest portions of the mining area. The predominant facies types are the Leader and General facies, which account for 85% of the total ore body.


Mining Methods

  • Breast stoping with strike pillars


Summary:

The mine is in the province of North West, 25 km north of the town of Rustenburg. It forms part of the Western Limb of the Bushveld complex and operates under a mining right covering 87 square kilometres.

Current mine infrastructure consists of two decline shafts, namely North shaft and South shaft, and a concentrator.

Both shafts have intersected the reef at the 700-metre level. The primary reef mined at BRPM is the Merensky reef with limited mining of the UG2 reef at both the North and South shafts. The mining method at BRPM is conventional breast stoping with strike pillars. The operating depth for current workings is between 50 metres and 500 metres below surface.


Crushing and Grinding


Processing

  • Flotation

Source: Subscription required

Summary:

The BRPM concentrator, was designed to receive Merensky ore from BRPM’s two decline shafts and is able to treat 10% of UG2. The original design capacity of 200ktpm, was upgraded to 250ktpm to accommodate production from Styldrift.

The concentrator can be described as a robust maintenance intensive environment which produces 2.7 tonnes of saleable product from every 100 tonnes of ore processed

The plant operates on a 24 hours, 365 days a year basis and follows a traditional Mill- Float, Mill-Float (MF2) process which includes a conventional three stage crushing process prior to milling and flotation. The flotation processes produce a platinum rich PGM concentrate which is collected and sold as a final product for further processing and refining. RBPlat has an offtake agreement with Rustenburg Refineries (owned by Anglo American Platinum) for the sale of RBPlat concentrate.

Recoveries & Grades:

CommodityParameter201920182017201620152014
4E (Pt, Pd, Rh, Au) Recovery Rate, %  ......  Subscription required  ......  Subscription required86.385.686.686.8
4E (Pt, Pd, Rh, Au) Head Grade, g/t  ......  Subscription required  ......  Subscription required4.164.184.144.3

Production:

CommodityUnits201920182017201620152014
4E (Pt, Pd, Rh, Au) koz  ......  Subscription required266283275272294
Platinum koz  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
All production numbers are expressed as metal in concentrate.
Subscription required - Subscription is required.

Operational Metrics:

Metrics201920182017201620152014
Ore tonnes mined  ......  Subscription required  ......  Subscription required2,431 kt2,349 kt2,382 kt2,459 kt
Tonnes milled  ......  Subscription required  ......  Subscription required2,449 kt2,453 kt2,044 kt2,112 kt
Subscription required - Subscription is required.

Reserves at December 31, 2019:

CategoryTonnage CommodityGradeContained Metal
Proven 43.7 Mt 4E (Pt, Pd, Rh, Au) 3.94 g/t 5.53 M oz
Probable 17.1 Mt 4E (Pt, Pd, Rh, Au) 4.04 g/t 2.22 M oz
Proven & Probable 60.8 Mt 4E (Pt, Pd, Rh, Au) 3.96 g/t 7.75 M oz
Total Resource 82.84 Mt 4E (Pt, Pd, Rh, Au) 5.78 g/t 15.4 M oz

Commodity Production Costs:

CommodityUnits201920182017201620152014
Cash costs 4E (Pt, Pd, Rh, Au) ZAR  ......  Subscription required 10,468 / oz 9,941 / oz 10,068 / oz 9,359 / oz 8,040 / oz
Cash costs Platinum ZAR  ......  Subscription required 16,145 / oz 15,414 / oz 15,639 / oz 14,504 / oz 12,463 / oz
Subscription required - Subscription is required.

Operating Costs:

Units201920182017201620152014
Processing costs ($/t milled) ZAR 1,3611,2131,1491,1771,066957

Financials:

Units201920182017201620152014
Capital expenditures M ZAR  ......  Subscription required49  77   110   112   154  
Revenue M ZAR  ......  Subscription required3,627  
Gross profit M ZAR  ......  Subscription required342.1  331.6   213   100.2   809.4  
Pre-tax Income M ZAR  ......  Subscription required476.9  414.3   298   154.2   836.8  
Subscription required - Subscription is required


Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Mar 17, 2021
....................... Subscription required ....................... Subscription required Subscription required Mar 17, 2021
....................... Subscription required ....................... Subscription required Subscription required Mar 17, 2021
....................... Subscription required ....................... Subscription required Subscription required Mar 17, 2021
Subscription required - Subscription is required.

Staff:

EmployeesContractorsTotal WorkforceYear
Subscription required 2020
Subscription required Subscription required Subscription required 2019
Subscription required Subscription required Subscription required 2018
Subscription required Subscription required Subscription required 2017
Subscription required Subscription required Subscription required 2016
Subscription required Subscription required Subscription required 2015
Subscription required Subscription required Subscription required 2014

Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
Annual Report 2018
Annual Report 2018
Year-end Mineral Reserves 2018
Annual Report 2017
Year-end Mineral Reserves 2017
Annual Report 2016
Year-end Mineral Reserves 2016
Annual Report 2015
Annual Report 2015
Annual Report 2015
Integrated Report 2015
Year-end Mineral Reserves 2015
Other 2004
Other 2000
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Aerial view:

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