South Africa

Evander Mine

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Categories

Overview

Mine TypeUnderground
Commodities
  • Gold
Mining Method
  • Pillar mining
  • Breast mining
  • Scraper mining
Production Start... Lock
Mine Life2036
ShapshotEvander Mines’ underground operations includes 7 Shaft, 8 Shaft and the run-of-mine circuit at the Kinross metallurgical plant and 8 Shaft pillar mining, which are independent of Elikhulu, the 24, 25 and 26 Level project, the Egoli project.

Mining of the 8 Shaft pillar at Evander Mines commenced during the second quarter of the 2020 financial year and reached steadystate production during 2022. The pillar mining significantly reduced the risk profile of the underground operations. This is attributed to simplified logistics, modern underground mining support systems and improved working conditions, including reduced distances for underground travel.

As Pan African approaches the completion of the pillar mining, the Company is now focusing on developing mining areas on 24 Level. Evander Mines’ underground operations have a life-of-mine of 13 years, which includes production planned from 24, 25 and 26 Levels, but excludes expected production from Egoli.
Related AssetEvander Operation

Owners

SourceSource
CompanyInterestOwnership
Employee Share Ownership Plan (the ‘ESOP’) 5 % Indirect
Pan African Resources plc 95 % Indirect
Pan African Resources' subsidiary, Evander Gold Mines Proprietary Limited, owns 95% of the Evander Mines. Employees own 5% of the issued share capital of Evander Mines through an ESOP.

Contractors

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Deposit type

  • Conglomerate hosted

Summary:

Evander Mines exploits the Kimberley Reef in the Evander basin, the eastern-most extremity of the Witwatersrand Supergroup. The Kimberley Reef is mined throughout the major gold mining districts within the Witwatersrand Supergroup, including the East Rand, Central Rand, West Rand, Far West Rand and Free State goldfields. Deposition models for gold within the conglomeratic horizons follows a palaeo-placer-type sedimentological deposition along with winnowing, erosion and concentration of gold-bearing footwall lithologies. Various studies have highlighted the importance of hydrothermal activity for deposition, remobilisation and enrichment within certain packages of the Witwatersrand Supergroup.

The Kimberley Reef is an oligomictic, pebbly conglomerate and comprises a composite sequence of channel sediments that define longitudinal gravel bars and sand bars with pebbly veneers. The reef in the area strikes in an east-west direction and dips to the north at about 10 degrees. The area is also divided by two major normal faults, striking in an east-north-east to west-south-west direction. The reef thickness varies from a waste on contact up to a 50cm well-developed oligomictic conglomerate. Average reef thickness is 35cm within the 8 Shaft vicinity. High gold values in the Kimberley Reef are mostly located at the base of the unit and are associated with the presence of carbon and some visible gold on the footwall contact.

Palaeo-placer and braided stream-type sedimentary deposit scavenged gold from the hinterland and underlying deposits. Mineralisation is concentrated in robust conglomeratic and carbonaceous units.

Gold is associated with disseminated sulphides in the form of pyrite. High grades occur where the reef is characterised by carbon specs or bands.

Reserves

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Mining Methods

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Comminution

Crushers and Mills

Milling equipment has not been reported.

Summary:

The Evander Gold Plant treats ore from Evander No. 8 Shaft and old tailings etc. There are six SAG mills operating in closed circuit with a hydro cyclone. A portion of the cyclone underflow is directed to Knelson centrifugal concentrators for the recovery of free gold. The milled product is nominally 80% passing 75 microns. The mill section is noncyanide exposed as it utilises non contaminated underground water for dilution and gland service water.

Processing

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Production

CommodityUnits2023202220212020201920182017
Gold oz 000000000000000000000000048,56545,304
All production numbers are expressed as metal in doré.

Operational metrics

Metrics202320222021202020192018
Annual production capacity 000000000000095 koz of gold metal in doré
Annual processing capacity 000000000000000000000000000000480,000 t
Ore tonnes mined 0000000000000000000000000000
Tonnes processed 0000000000000000000000000000272,124 t

Production Costs

CommodityUnits202320222021202020192018
Cash costs (sold) Gold USD 0000 0000 0000 0000 1,761 / oz   1,682 / oz  
All-in sustaining costs (AISC) Gold USD 00000000 00000000 00000000 00000000 1,768 / oz   2,065 / oz  
All-in costs Gold USD 00000000 00000000 00000000 00000000 1,927 / oz   2,331 / oz  
Net of By-Product.

Operating Costs

Currency20232022202120202019201820172016
Total operating costs ($/t milled) ZAR 4,020  5,953  5,642  6,099  6,592  3,859  3,964  2,492  

Financials

Units2023202220212020201920182017
Capital expenditures M ZAR  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe 181.5   222.2  
Revenue M ZAR  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe 811.4   754.9  
EBITDA M ZAR  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe -270   -334  

Heavy Mobile Equipment

Fleet data has not been reported.

Personnel

Mine Management

Source Source
Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Oct 24, 2023
....................... Subscription required ....................... Subscription required Subscription required Oct 24, 2023

EmployeesContractorsTotal WorkforceYear
Subscription required Subscription required Subscription required 2023
Subscription required Subscription required Subscription required 2022
Subscription required Subscription required Subscription required 2021
Subscription required Subscription required Subscription required 2020
Subscription required Subscription required Subscription required 2018
Subscription required Subscription required Subscription required 2017
Subscription required Subscription required Subscription required 2016
Subscription required Subscription required Subscription required 2015

Aerial view:

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