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South Africa
Union Mine

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 Location:
139 km NW from Pretoria, South Africa

  Address:
Union Mine
Private Bag X351
Swartklip
South Africa
0370
Phone  ...  Subscription required
Fax(014)786-0467
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 & Underground
Commodities
  • PGM
  • Platinum
  • Palladium
  • Rhodium
  • Iridium
  • Ruthenium
  • Gold
  • Nickel
  • Copper
Mining Method
  • Scattered stoping
  • Truck & Shovel / Loader
  • Longwall
Production Start...
Mine Life2033
In order to extend the current life of the mine and ensure the sustainability of its mining operations, SBPM proposes to undertake several developments on its approved mining right footprint. One of these is the proposed development of the New opencast pit which is situated centrally to the mining right area


Owners

Source:
CompanyInterestOwnership
Siyanda Resources (Pty) Ltd. 85 % Indirect
Siyanda Bakgatla Platinum Mine (Pty) Ltd (operator) 100 % Direct
Siyanda Resources holds 85% interest in the Union Mine assets with The Bakgatla-Ba-Kgafela community holding 15% of Union Mine.

Contractors

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Deposit Type

  • Magmatic


Summary:

The site and surrounding area are underlain by the Pyramid Formation of the Rustenburg Layered Suite (RLS), on the western limb of the Bushveld Igneous Complex. The suite of mafic sills, which intruded the basal rocks of the Transvaal Supergroup, comprises rocks that range from norites, pyroxenite, harzburgite, gabbronorite, magnetite and olivine-magnetite rich gabbronorite, anorthosite and olivine-apatite rich gabbronorite.

The most prominent feature from the RLS is the distinct layering in the different rock types due to differentiation of magma that Brink (1989) describes as pseudo-stratification. The originally placed layers of the Bushveld Complex rocks dips centripetally at between 100 and 200, which is attributed to the effect of the crustal flexure in response to the load of the RLS and associated granites.

The rock-forming minerals of the Merensky Reef comprise approximately equal amounts of dark iron magnesium silicate minerals and lighter calcium-aluminium-sodium silicate minerals (called a feldspathic pyroxenite) under- and overlain by thin (5 to 15 mm) often discontinuous layers of chrornite concentrations. The total thickness of this package is generally less than 30 cm. This zone, commonly known as the Merensky pegmatoid, contains the base metal sulfide grains and associated platinum group minerals. The Merensky Reef has been traced for 300 km around the entire outcrop of the eastern and western limbs of the Bushveld Complex, and to depth ........


Mining Methods

  • Scattered stoping
  • Truck & Shovel / Loader
  • Longwall


Summary:

Generally, underground longwall or scattered mining methods are used to mine the Merensky reef and the UG2. Most orebodies at SBPM occur as narrow tabular orebodies that are continuous along dip and strike. SBPM utilises various types of underground mining methods, that vary in the mining direction, and the method of accessing the orebody, but which in essence are all varieties of narrow tabular stoping:
1. Mining Methods of UG2 reef;
- Conventional scattered breast;
- Longwall;
- Down-dip and up-dip mining;
- Hybrid Trackless mining (i.e., trackless on reef drives with conventional panels in between).
2. Mining Method of Merensky reef
- Down-dip and up-dip;
- Scattered.

The Merensky reef is mined to an average depth of 1,400 m and it is intended that this depth will be extended to a depth of 2,000 m for down-dip. The UG2 reef is currently mined to an average depth of about 1,700 m.

At the current 4B opencast operation, owing to multiple reefs being extracted from the pit (Merensky, Tarentaal and Pseudo Merensky) at dips that vary between 18 and 40 degrees, the box cut method has been varied, such that it involves pavilions or benches that are opened from a single access incline, followed by roll over mining as soon as sufficient mined out space in the pit became available.

The 4B opencast operation is scheduled to be depleted in 2022.

The New pit is the continuation of the 4B opencast operation.


Crushing and Grinding
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Processing

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Summary:

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Production:

CommodityUnits202020192018201720162015
Platinum koz  ......  Subscription required  ......  Subscription required163154151141
Palladium koz  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Rhodium koz  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
PGM koz  ......  Subscription required  ......  Subscription required  ......  Subscription required
Iridium koz  ......  Subscription required  ......  Subscription required  ......  Subscription required
Ruthenium koz  ......  Subscription required  ......  Subscription required  ......  Subscription required
Gold koz  ......  Subscription required  ......  Subscription required  ......  Subscription required
Nickel kt  ......  Subscription required  ......  Subscription required  ......  Subscription required
Copper kt  ......  Subscription required  ......  Subscription required  ......  Subscription required
All production numbers are expressed as metal in concentrate.
Subscription required - Subscription is required.

Operational Metrics:

Metrics20182017201620152014
Ore tonnes mined 169 kt2,253 kt2,129 kt2,106 kt1,256 kt
Tonnes milled 205 kt of ore2,688 kt of ore2,597 kt of ore2,557 kt of ore2,007 kt of ore

Reserves at December 31, 2017:

CategoryOreTypeTonnage CommodityGradeContained Metal
Proven In-Situ (UG) 35.5 Mt 4E (Pt, Pd, Rh, Au) 4.43 g/t 5.06 M oz
Probable Tailings 0.8 Mt 4E (Pt, Pd, Rh, Au) 1.24 g/t 0.03 M oz
Probable In-Situ (UG) 7.3 Mt 4E (Pt, Pd, Rh, Au) 4.01 g/t 0.94 M oz
Proven & Probable Tailings 0.8 Mt 4E (Pt, Pd, Rh, Au) 1.24 g/t 0.03 M oz
Proven & Probable In-Situ (UG) 42.7 Mt 4E (Pt, Pd, Rh, Au) 4.37 g/t 6 M oz
Measured In-Situ (UG) 74.2 Mt 4E (Pt, Pd, Rh, Au) 5.57 g/t 13.3 koz
Indicated Tailings 16.8 Mt 4E (Pt, Pd, Rh, Au) 1.32 g/t 0.7 M oz
Indicated In-Situ (UG) 82.7 Mt 4E (Pt, Pd, Rh, Au) 5.75 g/t 15.3 M oz
Measured & Indicated Tailings 16.8 Mt 4E (Pt, Pd, Rh, Au) 1.32 g/t 0.7 M oz
Measured & Indicated In-Situ (UG) 156.9 Mt 4E (Pt, Pd, Rh, Au) 5.64 g/t 28.5 M oz
Inferred In-Situ (UG) 60.7 Mt 4E (Pt, Pd, Rh, Au) 5.55 g/t 10.8 M oz
Total Resource Tailings 16.8 Mt 4E (Pt, Pd, Rh, Au) 1.32 g/t 0.7 M oz
Total Resource In-Situ (UG) 217.7 Mt 4E (Pt, Pd, Rh, Au) 5.63 g/t 39.4 M oz

Commodity Production Costs:

CommodityUnits201820172016
Cash costs PGM ZAR 10,800 / oz   10,567 / oz   10,147 / oz  
Cash costs Platinum ZAR 21,542 / oz   21,109 / oz   20,020 / oz  

Operating Costs:

Units2018201720162015
UG mining costs ($/t milled) ZAR 1,1091,0441,0151,138

Financials:

Units202020172016
Revenue M ZAR  ......  Subscription required 5,035   3,958  
After-tax Income M ZAR  ......  Subscription required
EBIT M ZAR 623.5   221  
EBITDA M ZAR  ......  Subscription required 720   476  



Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Sep 21, 2022
....................... Subscription required ....................... Subscription required Subscription required Sep 21, 2022
....................... Subscription required ....................... Subscription required Subscription required Sep 21, 2022
....................... Subscription required ....................... Subscription required Subscription required Sep 21, 2022
....................... Subscription required ....................... Subscription required Subscription required Sep 21, 2022
Subscription required - Subscription is required.

Staff:

EmployeesContractorsTotal WorkforceYear
Subscription required Subscription required 2020
Subscription required Subscription required 2018
Subscription required Subscription required 2017
Subscription required Subscription required 2016

Corporate Filings & Presentations:

DocumentYear
Other 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
Annual Report 2018
Other 2018
Year-end Mineral Reserves 2018
Annual Report 2017
Year-end Mineral Reserves 2017
Annual Report 2016
Financial Review 2016
Year-end Mineral Reserves 2016
Annual Report 2015
Annual Report 2015
Year-end Mineral Reserves 2015
Other 2014
Project Description 2006
Other 2000
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