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South Africa
Khutala Mine (Seriti Power (SAEC) Operation)

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 Location:
31 km E from Delmas, South Africa

  Address:
Farm 34 IS District Cologne
Registration Division IS
Ogies
South Africa
2230
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Fleet
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeUnderground
Commodities
  • Coal (thermal)
Mining Method
  • Continuous
  • Bord-and-pillar
Production Start...
Mine Life2033


Owners

Source: p. 1
CompanyInterestOwnership
Seriti Resources Holdings Proprietary Ltd. 90 % Indirect
Johannesburg, 1 June 2021: Following the fulfilment on 15 May 2021 of all conditions precedent in respect of Seriti’s acquisition of South32 SA Coal Holdings Proprietary Limited (SAEC), Seriti is pleased to advise that the transaction has now closed and that it has assumed management of these operations from 1 June 2021.

SAEC has been renamed Seriti Power, and comprises the Khutala, Klipspruit, and Middelburg Mines Services (MMS) North and South mines, which provide coal to the Kendal and Duhva power stations, as well as export coal via the Richards Bay Coal Terminal. Seriti holds a 90% interest in Seriti Power, while an Employee Trust and Community Trust each hold a 5% interest.

Contractors

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Deposit Type

  • Sedimentary


Summary:

The primary geology and stratigraphy at Khutala is typical of the Witbank Coalfield. The development of the No.2 and No.4U Seams occurred mainly in a broad valley of low topographic relief where coal seams terminated towards the east and west of the property. This thinning or absence of coal seams towards the east and west is due to a gentle rising of the pre-Karoo relief. Coal Resources in the No.2 and No.4U Seams within the Khutala mining right area is contracted to Eskom and mined coal is delivered raw to Kendal Power Station.

The No.1 and No.2A Seams are either absent or only locally developed with restricted extents across the area due to elevation differences in the palaeo-floor which consists of either basement felsite or Dwyka Formation.

Two prominent hilltops within the Khutala boundary represent major felsite palaeo-high ridges that truncated the coal measures during deposition. These no-coal areas are shown in Figure 5.44 and their effect on coal seams is illustrated in Figure 5.45. Seam dips can reach 15o on the flanks of palaeo-highs.

The No.4L, No.3, No.2A and No.1 Seams are not economically significant. These seams are either too thin, inconsistently developed, or of too poor quality to be considered.

In general, the coal-bearing strata are flat lying with little structural disturbance to the coal seams. However, a major graben structure bisects the Khutala property striking northeast-southwest and effectively divides ........


Mining Methods

  • Continuous
  • Bord-and-pillar


Summary:

The mine is predominantly an underground bord and pillar mining operation.

The underground mine is accessed by a large diameter vertical shaft for men and materials and there is an access decline which is used to transport the coal on a conveyor from underground to the surface stockpiles. In total there are currently 12 working areas (known as sections), with eight sections in the No.2 Seam and four sections in the No.4 Seam. The current underground mining method is to use modern mechanised continuous miners in all working sections. Both the No.2 and No.4 Seams are mined using continuous miners, mechanised roof bolters, electric shuttle cars and feeder breakers. The broken coal is loaded onto a network of conveyor belts, which transport the coal to surface.

Each continuous miner section comprises nine roadways; seven of these are used as intake airways and the remaining two as return airways. In plan view, this creates chequerboard pattern of ‘bords’ (comprising headways and cut-throughs), which provide access, and blocks of uncut virgin coal blocks (‘pillars’). The pillars support the overlying strata, while the headings/cut-throughs are supported by roofbolts. The depth of working is the key determinant impacting on the dimensions of the pillars and the size of each bord. As depth increases so does the size of the pillar, which then affects extraction and production rates. This nine-road configuration minimises the frequency of belt extensions, without ........


Crushing and Grinding


Processing

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Summary:

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Production:

CommodityUnits2020 *2017201620152014
Coal (thermal) Mt  ......  Subscription required *8.68.9109.7
All production numbers are expressed as ROM coal. * Average annual production reported in 2020
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Operational Metrics:

Metrics2015
Raw coal annual capacity 12 Mt

Reserves at June 30, 2020:
Cut-off grade
Coal Resources: > 1.0 m seam thickness for OC, > 2.5 m seam thickness for UG, < 45% ash, > 24% dry ash-free volatile matter.
Coal Reserves: > 2.5 m seam thickness for UG.

CategoryOreTypeTonnage CommodityMarketable Coal
Proven In-Situ (UG) 29 Mt Coal (thermal) 29 Mt
Probable In-Situ (UG) 30 Mt Coal (thermal) 30 Mt
Proven & Probable In-Situ (UG) 59 Mt Coal (thermal) 59 Mt
Measured In-Situ (OP) 1,098 Mt Coal (thermal)
Measured In-Situ (UG) 94 Mt Coal (thermal)
Indicated In-Situ (UG) 23 Mt Coal (thermal)
Total Resource In-Situ (OP) 1,098 Mt Coal (thermal)
Total Resource In-Situ (UG) 117 Mt Coal (thermal)


Pipelines
TypeMaterialDiameterLengthDescription


Heavy Mobile Equipment as of March 16, 2015:
HME TypeModelQuantity
Continuous Miner ....................... Subscription required ....................... Subscription required
Continuous Miner ....................... Subscription required ....................... Subscription required
Feeder Breaker ....................... Subscription required
Rock bolter ....................... Subscription required
Shuttle car ....................... Subscription required ....................... Subscription required
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Aug 3, 2022
....................... Subscription required ....................... Subscription required Subscription required Aug 4, 2022
....................... Subscription required ....................... Subscription required Subscription required Aug 4, 2022
....................... Subscription required ....................... Subscription required Subscription required Aug 4, 2022
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Staff:

EmployeesContractorsTotal WorkforceYear
Subscription required Subscription required Subscription required 2021
Subscription required 2017

Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2020
................................... Subscription required 2019
Annual Report 2018
Annual Report 2017
Other 2017
Press Release 2017
Annual Report 2016
Corporate Presentation 2016
Other 2015
Subscription required - Subscription is required.

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