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South Africa
Kolomela Mine

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 Location:
16 km SW from Postmasburg, South Africa

  Regional Office:
124 Akerboom Street
Centurion
South Africa
0157
Phone  ...  Subscription required
Fax086-295-0746
WebsiteWeb
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Fleet
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeOpen Pit
Commodities
  • Iron Ore
  • Iron (hematite)
Mining Method
  • Truck & Shovel / Loader
Production Start...
Mine Life13 years (as of Jan 1, 2021)


Owners

Source: p. 231
CompanyInterestOwnership
Anglo American plc. 53.4 % Indirect
Ownership Tree
Sishen and Kolomela are fully owned by the Sishen Iron Ore Company (SIOC). Kumba Iron Ore Limited has a 76.3% interest in SIOC (2020: 76.3%). Including shares held by Kumba Iron Ore in relation to its own employee share schemes, the Group’s effective interest in Kumba Iron Ore is 69.97% (2020: 70.04%). Consequently, the Group’s effective interest in SIOC is 53.4% (2020: 53.4%).

Contractors

Subscription required - Subscription is required.


Deposit Type

  • Banded iron formation


Summary:

The Kolomela mine orebodies comprise hard, high-grade, conglomeratic and laminated haematite orebodies. The ores have been preserved as three separate orebodies within basinal and graben structures up to 2km long, 400m wide and 300m deep.

The Welgevonden deposit, also known as the Sishen South deposit, is located on the southern extremity of the Maremane Dome, 9 km southwest of the town of Postmasburg and 65 km south of Sishen Mine. The deposit is made up of several smaller ore bodies and is currently mined at Kolomela Mine under the ownership of Kumba Iron Ore.

The only BIF present at Welgevonden appears to be that of the Kuruman Iron Formation, with the Griquatown Iron Formation having been removed by erosion. The main structural characteristic in the west of the Welgevonden area is the Wolhaarkop Dome, an overturned anticline replicating the larger Maremane Dome, which occurs in the east of the deposit.The ore bodies are intensely folded and faulted, and are preserved within erosional remnants that are not as continuous, but are of similar structural types to those encountered at Sishen.

Two tectono-stratigraphic settings for the ore bodies have been defined by Alchin and Botha: a palaeosinkhole-hosted setting applicable to the Ploegfontein, Leeuwfontein and Klipbankfontein ore bodies; and a synclinal basin setting applicable to the Welgevonden and Kapstevel ore bodies. Marginal deformational effects, thought to be related to the ~2.2 Ga ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

The Kolomela Mine is conventional drill and blast and truck and shovel open-pit operations with ex pit ore at Kolomela hauled to designated finger stockpiles from which a run-of-mine blend is delivered. The Kolomela finger stockpiling is necessary to produce the correct run-of-mine blend for the predominantly DSO operation.

Currently, the Leeuwfontein, Klipbankfontein and Kapstevel North ore bodies are mined. The 2021 LoM plan also includes mining of the Kapstevel South ore body with waste
stripping that commenced in 2020.

The iron ore is loaded according to blend (grade) requirements and transported to designated run-of-mine finger stockpiles dependent on the Fe grade and contaminant grade of the load.

Kolomela is increasingly investigating strategies for the backfilling of waste rock into the opencast pits and have already commenced with the backfilling of the Leeuwfontein Pit. The footprint of the approved Leeuwfontein Waste Rock Dump (WRD) will result in the complete backfilling of the Tierbult Pit and Ploegfontein South Pit areas and the northern section of the Leeuwfontein Pit. The establishment of the approved Kapstevel WRD will result in the backfilling of the Kapstevel North Pit. It is proposed to extend the backfilling footprint to incorporate the remaining section of the Leeuwfontein Pit and the Klipbankfontein Pit.


Crushing and Grinding


Processing

Source: Subscription required

Summary:

- subscription is required.


Production:

CommodityUnits2022202120202019201820172016
Iron (hematite) Mt  ......  Subscription required ^  ......  Subscription required  ......  Subscription required  ......  Subscription required141413
All production numbers are expressed as lump & fines. ^ Guidance / Forecast.
Subscription required - Subscription is required.

Operational Metrics:

Metrics202120202019201820172016
Total tonnes mined  ......  Subscription required  ......  Subscription required79.1 Mt72 Mt71.8 Mt64 Mt
Waste  ......  Subscription required  ......  Subscription required63.2 Mt56 Mt55.6 Mt50.2 Mt
Ore tonnes mined  ......  Subscription required  ......  Subscription required15.8 Mt16.1 Mt16.2 Mt13.8 Mt
Stripping / waste ratio  ......  Subscription required  ......  Subscription required4 3.5 3.4 3.7
Annual production capacity  ......  Subscription required  ......  Subscription required
Subscription required - Subscription is required.

Reserves at December 31, 2021:
Ore Reserves are reported above a cut-off of 50.0 %Fe.
Mineral Resources are reported above a cut-off of 50.0 %Fe

CategoryOreTypeTonnage CommodityGrade
Proven 102 Mt Iron 63.8 %
Probable 33 Mt Iron 63.3 %
Probable Stockpiles 11.5 Mt Iron 63.3 %
Proven & Probable 135 Mt Iron 63.7 %
Proven & Probable Stockpiles 11.5 Mt Iron 63.3 %
Measured 30.5 Mt Iron 64.8 %
Indicated 59.8 Mt Iron 63.1 %
Indicated Stockpiles 8.7 Mt Iron 55.2 %
Measured & Indicated 90.4 Mt Iron 63.7 %
Measured & Indicated Stockpiles 8.7 Mt Iron 55.2 %
Inferred 6.6 Mt Iron 64.8 %

Commodity Production Costs:

CommodityUnits202120202019201820172016
Cash costs Iron (hematite) USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 18.8 / t   18.1 / t   13.7 / t  
Subscription required - Subscription is required.

Financials:

Units202120202019201820172016
Capital expenditures M ZAR  ......  Subscription required  ......  Subscription required  ......  Subscription required 597   233  
Revenue M ZAR  ......  Subscription required  ......  Subscription required  ......  Subscription required 11,665   11,723   10,764  
Operating Income M ZAR
EBITDA M ZAR  ......  Subscription required  ......  Subscription required  ......  Subscription required 7,443   7,481   7,481  
Subscription required - Subscription is required



Heavy Mobile Equipment as of April 12, 2021:
HME TypeModelLeased or
Contractor
Dozer ....................... Subscription required Leased
Dozer ....................... Subscription required Leased
Drill ....................... Subscription required Leased
Loader ....................... Subscription required Leased
Truck (dump) ....................... Subscription required Leased
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Apr 12, 2022
....................... Subscription required ....................... Subscription required Subscription required Apr 12, 2022
....................... Subscription required ....................... Subscription required Subscription required Apr 12, 2022
....................... Subscription required ....................... Subscription required Subscription required Apr 12, 2022
....................... Subscription required ....................... Subscription required Subscription required Apr 12, 2022
Subscription required - Subscription is required.

Staff:

EmployeesContractorsTotal WorkforceYear
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

Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2021
................................... 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
................................... Subscription required 2019
................................... Subscription required 2019
Integrated Report 2018
Year-end Mineral Reserves 2018
Integrated Report 2017
Year-end Mineral Reserves 2017
Annual Report 2016
Environmental Impact Statement 2016
Integrated Report 2016
Year-end Mineral Reserves 2016
Integrated Report 2015
Year-end Mineral Reserves 2015
Integrated Report 2014
Integrated Report 2011
Annual Review 2010
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