South Africa

Wessels Mine

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Categories

Overview

Mine TypeUnderground
Commodities
  • Manganese
Mining Method
  • Bord-and-pillar
  • Room-and-pillar
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ShapshotThe Wessels Mine is part of Hotazel Manganese Complex. The Wessels is an underground mine. It has vertical and incline shafts and uses the mechanized bord and pillar mining method.
Related AssetHotazel Complex

Owners

SourceSource
CompanyInterestOwnershipInvestor's Info
Black Economic Empowerment(B-BBEE Commission) 26 % Indirect
Anglo American plc. 29.6 % Indirect
South32 Limited 44.4 % Indirect
Hotazel Manganese Mines (pty) Ltd. (operator) 100 % Direct
South32 Limited holds a 60 per cent interest in Samancor Holdings (Pty) Ltd and Anglo American Plc holds the remaining 40 per cent. Samancor indirectly owns 74 per cent of Hotazel Manganese Mines (HMM), which gives South32 Limited its ownership interest of 44.4 per cent. The remaining 26 per cent of HMM is owned by Broad-Based Black Economic Empowerment (B-BBEE) entities. Anglo American Plc effective ownership interest in HMM is 29.6%.

Deposit type

  • Banded iron formation

Summary:

South African manganese deposits are currently confined to the Early Proterozoic Transvaal Supergroup, Northern Cape Province. They can be grouped into two major categories:
1. Syngenetic carbonate-rich manganese deposits interbedded with the banded iron formations (BIF) of the Hotazel Formation, colloquially called the Kalahari Manganese Field.
2. Karst-fill type manganiferous material from residual Fe-rich manganese developed in dolomites of the Campbell Rand Subgroup in the Postmasburg Fe-Mn Fields.

The Kalahari Manganese Field is situated within a structural basin, known as the Dimoten Synclinorium, plunging at an angle of 3° to 8° to the north and northwest. It extends from Mamatwan Mine in the south for approximately 40 km to Wessels Mine in the north, with an east-west extent varying between 5 and 15 km.

Local Geology
Wessels Mine extracts high grade (above 47% Mn) manganese ore. The ore is typically coarse grained, shiny, massive or vuggy, with the principal minerals being hausmannite and braunite II (Wessels-type ore), as opposed to primary, lower grade braunite further to the south in the Kalahari Basin (Mamatwan-type ore). The current interpretation is that the Wessels-type ore was formed by hydrothermal alteration of primary Mamatwan-type ore and that the alteration took place along a system of post-Olifantshoek, north-south and east-west striking normal faults.

Reserves

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Mining Methods

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Comminution

Crushers and Mills

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Processing

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Production

CommodityUnits2022
Manganese Mt  ....  Subscribe
All production numbers are expressed as lump.

Operational metrics

Metrics20212015
Annual mining capacity  ....  Subscribe1.2 Mt of manganese ore

Production Costs

Commodity production costs have not been reported.

Heavy Mobile Equipment

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Personnel

Mine Management

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Jan 11, 2024
....................... Subscription required ....................... Subscription required Subscription required Jan 11, 2024

Aerial view:

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