Mining Intelligence and News
South Africa

Khumani Mine

Click for more information
Australia

Khumani Mine

Location: 50 km N from Postmasburg, South Africa

Address:

ARM house 24 Impala Road Chislehurston Sandton
Private Bag X03 Northlands 2116
Johannesburg
South Africa
2196

Contacts:

Additional Resources for Suppliers & Investors

Categories

Overview

Mine TypeOpen Pit
StatusActive
Commodities
  • Iron Ore
Mining Method
  • Truck & Shovel / Loader
Production Start... Lock
Mine Life... Lock
SnapshotThe Khumani is open-pit mechanised mine.

Owners

SourceSource
CompanyInterestOwnership
African Rainbow Minerals Ltd. 50 % Indirect
Assore Ltd. 50 % Indirect
Assmang Proprietary Ltd. (operator) 100 % Direct
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.

Contractors

Lock

- subscription is required.

SourceSource

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.

Reserves

Lock

- subscription is required.

Mining Methods

Lock

- subscription is required.

Comminution

Crushers and Mills

Lock

- subscription is required.

Processing

Lock

- subscription is required.

Production

CommodityUnits2024202320222021202020192018201720162015
Iron Ore Mt  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe1415151413
All production numbers are expressed as lump & fines. ^ Guidance / Forecast.

Operational metrics

Metrics202320222021202020192018201720162015
Ore tonnes mined  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe20.1 Mt22 Mt20.4 Mt21.4 Mt19.1 Mt
Stripping / waste ratio  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe2.22
Waste  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe42,926,322 t43,505,469 t37,524,588 t34,287,143 t

Production Costs

CommodityUnits2024202320222021202020192018
Site cash costs (produced) Iron Ore ZAR  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe 227 / t   207 / t  
^ Guidance / Forecast.

Financials

Units202320222021202020182017
Capital expenditures M ZAR  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe 306   892  
Operating Income M ZAR

Heavy Mobile Equipment

Fleet data has not been reported.

Personnel

Mine Management

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Nov 5, 2023
....................... Subscription required ....................... Subscription required Subscription required Nov 5, 2023
....................... Subscription required ....................... Subscription required Subscription required Nov 5, 2023
....................... Subscription required ....................... Subscription required Subscription required Nov 5, 2023
....................... Subscription required ....................... Subscription required Subscription required Nov 5, 2023

Total WorkforceYear
...... Subscription required 2023
...... Subscription required 2022
...... Subscription required 2021
...... Subscription required 2020
...... Subscription required 2019
...... Subscription required 2018
...... Subscription required 2017

Aerial view:

Lock

- subscription is required.