• Data Access
  • Your Email  
  • Your Email  
Keep me signed in.
Forgot your password?
Close
  • Forgot Your Password?
  • Enter the email you signed up with and we'll email it to you.
  • Your Email  
Close
Back
MDO
Mining Data Solutions
  • Home
  • Database
  • Subscribe
  • Sign In
  • Sign In
South Africa
Khumani Mine

This page is not tailored to
devices with screen width under 750 px.
 Location:
50 km N from Postmasburg, South Africa

  Regional Office:
Assore House 15 Fricker Road Illovo Boulevard
Private Bag X03 Northlands 2116
Johannesburg
South Africa
2196
Phone  ...  Subscription required
Fax+27-(0)-11-268-6440
EmailEmail
WebsiteWeb
Additional Resources for Suppliers & Investors
Drill results over 30 g/t Au
Stay on top of recent discoveries.
Search drill results by commodity and grade.
Largest mines in the Americas
Mining and mill throughput capaciites.
Full profiles of select mines and projects.
Deepest underground mines
Shaft depth and mill throughput data.
Full profiles of select mines and projects.
Heavy mobile equipment
HME type, model, size and quantity.
Full profiles of select mines and projects.
Permitting and construction projects
Projects at the permitting or construction stage. Full profiles of select projects.
Mines with remote camps
Camp size, mine location and contacts.
Full profiles of select mines and projects.
Mines & projects in South Africa
A list of country's mines and projects.
Full profiles of select mines and projects.
  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Personnel
  • Filings & News

Thank you for browsing through mine profiles compiled by the Mining Data Online team.

Would you like to subcribe or schedule a Demo?
  • Name:
     
  • Company:
     
  • Position:
     
  • Phone:
  • Email:
  • Message:

Overview

StageProduction
Mine TypeOpen Pit
Commodities
  • Iron Ore
Mining Method
  • Truck & Shovel / Loader
Processing
  • Wash plant
  • Crush & Screen plant
  • Jig plant
Mine Life25 years (as of Jan 1, 2021)


Owners

Source: p. 88
CompanyInterestOwnership
African Rainbow Minerals Ltd. 50 % Indirect
Assore Ltd. 50 % Indirect
Assmang Proprietary Ltd. (operator) 100 % Direct
ARM (African Rainbow Minerals Ltd.) owns 50% of Assmang (Pty) Ltd and Assore (Pty) Ltd owns 50%.

Assmang is jointly managed by ARM and Assore. ARM provides the administration and technical services while Assore performs the sales and marketing function.

Deposit Type

  • Banded iron formation


Summary:

Khumani mine is situated within a sequence of early Proterozoic sediments of the Transvaal Supergroup. The mine is symmetrically located on the Maremane Anticline in the Griqualand West Sequence of the Transvaal Supergroup, as well as the Elim Group of the Keis Supergroup.

In general, two ore types are present: laminated hematite ore, forming part of the Manganore Iron Formation, and conglomerate ore, belonging to the Doornfontein Conglomerate Member at the base of the Gamagara Formation. The laminated ore types occur in the upper portion of the Manganore Iron Formation as enriched high-grade hematite bodies. The boundaries of high grade hematite orebodies cross-cut primary sedimentary bedding, indicating that secondary hematitisation of the iron formation took place. In all of these, some of the stratigraphic and sedimentological features of the original iron formation are preserved. The conglomeratic ore found in the Doornfontein Conglomerate Member of the Gamagara Formation, is lenticular but not consistently developed along strike. It consists of stacked, upward fining conglomerate-gritstone-shale sedimentary cycles.

The lowest conglomerates and gritstones tend to be rich in subrounded to rounded hematite ore pebbles and granules and form the largest part of the resource. The amount of iron ore pebbles decreases upwards in the sequence so that upper conglomerates normally consist of poorly sorted, angular to rounded chert and banded iron formation pebbles. Hematite is the predominant ore mineral, but limonite and specularite also occur.

Khumani being characterised by larger stratiform bodies and prominent hanging-wall outcrops. The down-dip portions are well preserved and developed, but in the outcrop the deposits are thin and isolated. Numerous deeper iron ore extensions occur into the basins due to karst development. A prominent north-south strike of the orebodies dipping to the west is notable.


Mining Methods

  • Truck & Shovel / Loader


Summary:

Mining operations are all open-pit, based on the conventional drill-and-blast, truck-and-shovel operations. Run-of-mine ore is crushed and stored as ‘on-’ or ‘off-grade’ on blending stockpiles.


Crushing and Grinding


Processing

  • Wash plant
  • Crush & Screen plant
  • Jig plant

Source: Subscription required

Summary:

Run-of-mine ore is crushed and stored as “on-” or “off-grade” on blending stockpiles. Ore from the stockpiles is either sent to the wash-and-screen plants or, if “off-grade”, to the beneficiation plants. The washing and screening plants consist primarily of tertiary crushing, washing, screening, conveying and stacking equipment. The beneficiation plants consist of tertiary crushers; scrubbers; coarse and fine jigs; lumpy and fines product stockpiles; and a rapid load-out facility. No chemicals are being used in any of the processing plants.


Production:

CommodityUnits2022202120202019201820172016
Iron Ore Mt  ......  Subscription required ^  ......  Subscription required  ......  Subscription required  ......  Subscription required151514
All production numbers are expressed as lump & fines. ^ Guidance / Forecast.
Subscription required - Subscription is required.

Operational Metrics:

Metrics202120202019201820172016
Ore tonnes mined  ......  Subscription required  ......  Subscription required20.1 Mt22 Mt20.4 Mt21.4 Mt
Subscription required - Subscription is required.

Reserves at June 30, 2021:
Mineral Resources: Grade cut-off: 55% Fe.

CategoryOreTypeTonnage CommodityGrade
Proven In-Situ (OP) 380.7 Mt Iron 62.29 %
Probable Stockpiles 6.02 Mt Iron 59.59 %
Probable In-Situ (OP) 33.46 Mt Iron 61.97 %
Proven & Probable In-Situ (OP) 414.16 Mt Iron 62.27 %
Measured In-Situ (OP) 507.49 Mt Iron 62.91 %
Indicated Stockpiles 20.76 Mt Iron 54.24 %
Indicated In-Situ (OP) 76.31 Mt Iron 62.53 %
Measured & Indicated In-Situ (OP) 583.8 Mt Iron 62.86 %
Inferred In-Situ (OP) 10.53 Mt Iron 59.96 %

Commodity Production Costs:

CommodityUnits2021202020192018
Site cash costs (produced) Iron Ore ZAR  ......  Subscription required  ......  Subscription required  ......  Subscription required 207 / t
Subscription required - Subscription is required.

Financials:

Units202120202018201720162015
Capital expenditures M ZAR  ......  Subscription required  ......  Subscription required306   892   464   1,001  
Operating Income M ZAR 2,643   2,393  
Subscription required - Subscription is required


Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Dec 10, 2021
....................... Subscription required ....................... Subscription required Subscription required Dec 10, 2021
....................... Subscription required ....................... Subscription required Subscription required Dec 10, 2021
....................... Subscription required ....................... Subscription required Subscription required Dec 10, 2021
Subscription required - Subscription is required.

Staff:

Total WorkforceYear
Subscription required 2021
Subscription required 2020
Subscription required 2019
Subscription required 2018
Subscription required 2017

Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
Integrated Report 2018
Other 2018
Year-end Mineral Reserves 2018
Annual Report 2017
Year-end Mineral Reserves 2017
Annual Report 2016
Year-end Mineral Reserves 2016
Subscription required - Subscription is required.

Aerial view:

Subscription required - Subscription is required.

Terms of Use Privacy Policy © 2017-2022 MDO Data Online Inc.