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South Africa
Hotazel Complex (Mamatwan Mine, Wessels Mine)

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 Location:
217 km NE from Upington, South Africa

  Address:
1 Peperboom Ave, Northern Cape
Hotazel
South Africa
8490
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Overview

StageProduction
Mine TypeOpen Pit & Underground
Commodities
  • Manganese
Mining Method
  • Truck & Shovel / Loader
  • Bord-and-pillar
Production Start...
Mine Life42 years (as of Jan 1, 2022)
The Hotazel Manganese Mines (HMM) are part of South Africa Manganese and include two mines, Wessels high grade underground mine and Mamatwan medium grade open pit mine.


Owners

Source: p. 58
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%.

Contractors

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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.

Mamatwan Mine
The manganese mineralisation at Mamatwan is hosted by the Hotazel Formation of the Postmasburg Group (Transvaal Supergroup) and occurs as stratiform bodies interbedded with banded ironstone formation. This Formation is characterized by three manganese-rich horizons, called the Lower, Middle and Upper Bodies respectively, separated by BIF.

The lowermost of the three units, the Lower Body (LB), is the only unit exposed and currently mined at Mamatwan Open Pit Mine. The Middle Body is poorly developed, often ferruginized, and carries no economic value. The Upper Body (UB) is considered to be potentially eco ........


Mining Methods

  • Truck & Shovel / Loader
  • Bord-and-pillar


Summary:

The Hotazel Manganese Mines (HMM) has two operations, the Wessels high-grade underground mine and the Mamatwan medium grade open-pit mine.

Mamatwan Mine
Mamatwan mine consists of an open pit operation that commenced in 1963. This pit is still operational, and is being extended to the north and west. The current run of mine for Mamatwan mine is in the order of 3 million tons per annum. Manganese ore is sold to both the local and international markets.

Stripping and stockpiling of topsoil and waste rock
Mamatwan mine is a conventional opencast operation in that topsoil and waste rock is removed to uncover the manganese ore body using truck and shovel methods. Topsoil is transported via truck to designated topsoil stockpile areas for later use as part of rehabilitation. Waste rock is stripped and transported to one of the designated WRDs at the MMT. Waste rock is either backfilled into the open pit or used to flatten the slopes of existing dumps.

Access to open cast workings
Ore is drilled and blasted, and hauled using front end loaders and shovels to the "in-pit" primary crusher. Crushed ore is conveyed to a product stockpile area (ROM stockpile) near the mineral processing plant. Excess ore is stored and crushed as required.

In pit crushing and screening
Oversize ore is crushed using a “in-pit” jaw crusher to reduce the size of the ore for further downstream processes. The crushed ore is conveyed to a designated ........


Crushing and Grinding
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Processing

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Summary:

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Production:

CommodityUnits2022202120202019201820172016
Manganese kwmt  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required3,5753,3972,852
All production numbers are expressed as lump & sinter. ^ Guidance / Forecast.
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Operational Metrics:

Metrics2021
Annual mining capacity  ......  Subscription required
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Reserves at June 30, 2022:
Mamatwan (Open pit)
Mineral Resources: M, C, N Zones - No cut-off grade applied; X Zone >35% Mn; Top Cut (balance I&O) >28% Mn.
Ore Reserves: No cut-off grade applied.

Wessels (Underground)
Cut-off grade for Mineral Resources and Ore Reserves are 37.5% Mn.

CategoryOreTypeTonnage CommodityGrade
Proven In-Situ (OP) 27 Mt Manganese 36.2 %
Proven In-Situ (UG) 3.8 Mt Manganese 43.2 %
Probable In-Situ (OP) 18 Mt Manganese 36.1 %
Probable In-Situ (UG) 53 Mt Manganese 41.6 %
Proven & Probable In-Situ (OP) 45 Mt Manganese 36.2 %
Proven & Probable In-Situ (UG) 57 Mt Manganese 41.7 %
Total Resource In-Situ (OP) 72 Mt Manganese 35 %
Total Resource In-Situ (UG) 141 Mt Manganese 41.7 %

Commodity Production Costs:

CommodityUnits2022202120202019201820172016
Cash costs (sold) Manganese USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 2.53 / dmtu   2.09 / dmtu   1.91 / dmtu  
^ Guidance / Forecast.
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Financials:

Units2023202220212020201920182017
Capital expenditures (planned) M USD  ......  Subscription required
Growth Capital M USD  ......  Subscription required
Sustaining costs M USD  ......  Subscription required
Capital expenditures M USD  ......  Subscription required
Revenue M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 727   547  
EBIT M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 292   200  
EBITDA M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 325   230  
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Heavy Mobile Equipment:

Mine Management:

Job TitleNameEmailProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Oct 11, 2022
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....................... Subscription required ....................... Subscription required Subscription required Oct 11, 2022
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Staff:

Total WorkforceYear
Subscription required 2018
Subscription required 2016
Subscription required 2015

Corporate Filings & Presentations:

DocumentYear
Annual Report 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
Annual Report 2018
Other 2018
Annual Report 2017
Year-end Mineral Reserves 2017
Annual Report 2016
Annual Report 2016
Corporate Presentation 2016
Other 2015
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