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South Africa
Two Rivers Mine

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 Location:
36 km SW from Burgersfort, South Africa
  Address:
ARM house 29 Impala Road Chislehurston Sandton
Johannesburg
South Africa
2196
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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
  • Platinum
  • Palladium
  • Rhodium
  • Ruthenium
  • Iridium
  • Gold
  • Nickel
  • Copper
  • Chrome
Mining Method
  • Bord-and-pillar
Production Start...
Mine Life30 years (as of Jan 1, 2022)
The plant expansion project, which is expected to add 40 000 tonnes per month milling capacity, was approved in December 2019 and successfully commissioned in the review period, achieving its design run rate.

The new tailings storage facility was commissioned in February 2022.

Mining the Merensky Reef commenced as planned in February 2022 and is ramping up. Surface earthworks in both the mining development and concentrator plant areas have begun. The concentrator plant is scheduled to be commissioned in December 2023. The project completion date remains November 2024.

Owners

Source: p. 72
CompanyInterestOwnership
Impala Platinum Holdings Ltd. 46 % Indirect
African Rainbow Minerals Ltd. 54 % Indirect
Two Rivers Platinum Proprietary Ltd. (operator) 100 % Direct
Ownership Tree
Two Rivers is a joint venture between African Rainbow Minerals (54%) and Implats (46%).

Contractors

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Deposit Type

  • Magmatic

Summary:

Two Rivers Platinum Mine (TRP) is exploiting platinum group metals (PGMs) and associated by-products comprising chromite and base metals (Cu, Ni and Co) which are hosted in the UG2 and Merensky reefs of the Bushveld Complex. The Bushveld Complex is the largest layered igneous complex in the world, hosting approximately 85% of known global platinum group metals resources.

Layered accumulations of mafic and ultramafic lithologies in the Bushveld Complex are collectively referred to as the Rustenburg Layered Suite (RLS). The stratigraphy of the RLS is broadly sub-divided into five zones namely (from bottom to top) the marginal zone, the lower zone, the critical zone, the main zone and the upper zone. The critical zone is of economic significance to Two Rivers Platinum Mine because it is the host of economically viable reefs – the UG2 and Merensky reefs. The critical zone is further subdivided into lower and upper critical zones. Both UG2 and Merensky reefs occur in the upper critical zone.

The geological succession at Two Rivers Platinum Mine is broadly similar to that encountered on the other operations in the southern portion of the eastern limb of the Bushveld Complex. An exception is the occurrence of the Steelpoortpark granite which is outcropping on the farm Buffelshoek 368 KT on the south-western part of the TRP mineral right area.

The Mineral Resources and Mineral Reserves for TRP are declared for both UG2 and Merensky Reef horizons. The ........

Mining Methods

  • Bord-and-pillar

Summary:

The Two Rivers Platinum mining operation consists of two UG2 decline shaft systems, the main decline, and the north decline, located approximately 2.5 kilometres apart on strike. Both shafts were designed for mechanised bord and pillar mining method. Merensky Reef is also being accessed via a decline shaft system with the mining method being bord and pillar as applied on the UG2 Reef.

The UG2 Reef is accessed via two decline shaft systems situated 3km apart, namely the Main Decline and the North Decline. Production of the UG2 Reef is through a fully mechanised bord and pillar stoping method. A mining section consists of 6m, 8m and 10m bords, with pillar sizes increasing with depth below the surface. The pillars are 6m x 6m to 12m x 12m in size. The bords are mined mainly on strike.

Conventional drilling, blasting and scraper mining is utilised in the stoping and secondary development areas. Drilling of the main development faces are done by means of mechanised drill rigs, whilst stoping, secondary development and support drilling is done by pneumatic hand-held drills. Explosives are transported to the faces by means of an explosives carrier and charged up. The broken rock is loaded with load haul dumps (LHDs) and transported with dump trucks to the tipping points.

Stoping sections exercise a multi-cycle operation during a shift. The full mining cycle in an eight bord section comprises two faces being drilled, two faces being cleaned, two face ........

Crushing and Grinding
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Processing

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Summary:

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Production:

CommodityUnits2023202220212020201920182017
6E (Pt,Pd,Rh,Au,Ir,Ru) koz  ......  Subscription required ^  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required348390
Platinum koz  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
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
Ruthenium oz  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Iridium oz  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Gold oz  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Nickel t  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Copper t  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
All production numbers are expressed as metal in concentrate. ^ Guidance / Forecast.
Subscription required - Subscription is required.

Operational Metrics:

Metrics202220212020201920182017
Ore tonnes mined  ......  Subscription required  ......  Subscription required  ......  Subscription required3.32 Mt3.45 Mt3.38 Mt
Tonnes milled  ......  Subscription required  ......  Subscription required  ......  Subscription required3.4 Mt3.46 Mt3,501 kt
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Reserves at June 30, 2022:

CategoryTonnage CommodityGradeContained Metal
Proven & Probable 121.1 Mt Platinum 1.54 g/t 6 M oz
Proven & Probable 121.1 Mt Palladium 0.85 g/t 3.3 M oz
Proven & Probable 121.1 Mt Rhodium 0.2 g/t 0.78 M oz
Proven & Probable 121.1 Mt Ruthenium 0.29 g/t 1.13 M oz
Proven & Probable 121.1 Mt Iridium 0.15 g/t 0.58 M oz
Proven & Probable 121.1 Mt Gold 0.09 g/t 0.35 M oz
Proven & Probable 121.1 Mt 3E (Pt, Pd, Au) 2.49 g/t 9.78 M oz
Proven & Probable 121.1 Mt 4E (Pt, Pd, Rh, Au) 2.69 g/t 10.5 M oz
Proven & Probable 121.1 Mt 6E (Pt,Pd,Rh,Au,Ir,Ru) 3.13 g/t 12.2 M oz
Total Resource 312.8 Mt Platinum 2.3 g/t 23.1 M oz
Total Resource 312.8 Mt Palladium 1.4 g/t 14.1 M oz
Total Resource 312.8 Mt Rhodium 0.31 g/t 3.15 M oz
Total Resource 312.8 Mt Ruthenium 0.54 g/t 5.39 M oz
Total Resource 312.8 Mt Iridium 0.13 g/t 1.26 M oz
Total Resource 312.8 Mt Gold 0.13 g/t 1.26 M oz
Total Resource 312.8 Mt 3E (Pt, Pd, Au) 3.82 g/t 38.49 M oz
Total Resource 312.8 Mt 4E (Pt, Pd, Rh, Au) 4.13 g/t 41.6 M oz
Total Resource 312.8 Mt 6E (Pt,Pd,Rh,Au,Ir,Ru) 4.8 g/t 48.2 M oz
Total Resource 312.8 Mt Nickel 0.09 % 0.28 Mt
Total Resource 312.8 Mt Copper 0.04 % 0.13 Mt

Commodity Production Costs:

Commodity2023202220212020201920182017
Cash costs 6E (Pt,Pd,Rh,Au,Ir,Ru)  ......  Subscription required ^  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 527 / oz  USD 442 / oz  USD
Cash costs Platinum  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 1,130 / oz  USD 948 / oz  USD
Cash costs Platinum  ......  Subscription required† 135 / oz†  USD 222 / oz†  USD
All-in sustaining costs (sold) Platinum  ......  Subscription required† 434 / oz†  USD
^ Guidance / Forecast.
† Net of By-Product.
Subscription required - Subscription is required.

Operating Costs:

Units20222021202020192018201720162015
Total operating costs ($/t milled) USD 6462535353494354

Financials:

Units2023202220212020201920182017
Capital expenditures (planned) M ZAR  ......  Subscription required
Capital expenditures M  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 35  USD 21  USD
Revenue M  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 3,774  ZAR 3,953  ZAR
Gross profit M  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 989  ZAR 1,081  ZAR
Operating Income M  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 1,314  ZAR
After-tax Income M  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 584  ZAR 636  ZAR
EBITDA M  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Operating Cash Flow M  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Subscription required - Subscription is required

Pipelines
TypeMaterialDiameterLengthDescription

Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Oct 28, 2022
....................... Subscription required ....................... Subscription required Subscription required Oct 28, 2022
....................... Subscription required ....................... Subscription required Subscription required Oct 28, 2022
....................... Subscription required ....................... Subscription required Subscription required Oct 28, 2022
Subscription required - Subscription is required.

Staff:

EmployeesContractorsTotal WorkforceYear
Subscription required Subscription required Subscription required 2022
Subscription required Subscription required Subscription required 2021
Subscription required Subscription required 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
Subscription required Subscription required Subscription required 2013
Subscription required Subscription required Subscription required 2012

Corporate Filings & Presentations:

DocumentYear
Annual Result 2022
Integrated Report 2022
Year-end Mineral Reserves 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
Environmental Assessment 2018
Fact Sheet 2018
Integrated Report 2018
Integrated Report 2018
Year-end Mineral Reserves 2018
Year-end Mineral Reserves 2018
Integrated Report 2017
Integrated Report 2017
Other 2017
Annual Report 2016
Annual Report 2016
Fact Sheet 2016
Year-end Mineral Reserves 2016
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