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South Africa
Target 3 Mine

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 Location:
8 km S from Allanridge, South Africa

  Regional Office:
Randfontein Office park Corner of Main Reef Road and Ward Avenue
P.O. Box 2
Randfontein
South Africa
1760
Phone  ...  Subscription required
Fax+27-11-692-3879
EmailEmail
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Personnel
  • Filings & News

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Overview

StatusCare and Maintenance
Mine TypeUnderground
Commodities
  • Gold
Mining Method
  • Scattered stoping
  • Shaft pillar
Processing
  • Gravity separation
  • Agitated tank (VAT) leaching
  • Concentrate leach
  • Carbon in pulp (CIP)
  • Elution
  • Solvent Extraction & Electrowinning
  • Cyanide (reagent)
Target 3 shaft was placed on care and maintenance in FY15.
The 2017 feasibility study was updated during the year after the geological model had been updated with additional information. Study outcomes remained essentially unchanged. Rehabilitation of the main shaft brattice wall continued throughout the year as did pumping of water.


Owners

Source: p. 2
CompanyInterestOwnership
Harmony Gold Mining Company Ltd. 100 % Indirect
Target Mine is one of the mines owned by Harmony Gold Mining, acquired from Avgold in 2004.

Deposit Type

  • Conglomerate hosted


Summary:

The gold mineralization exploited by Target 3 is contained within the Basal Reef, B Reef, A Reef (Kimberly Formation) and Elsburg Reef, a succession of Elsburg a pebble conglomerate reefs hosted by the Van Heeverrust (Eldorado Formation). Synclinal fold forms the major structural feature and is manifested as an asymmetric syncline whose axis trends N 15° W, with a general plunge of 10 12° north.


Mining Methods

  • Scattered stoping
  • Shaft pillar


Summary:

At Target 3 Shaft there remains a mix of remnant ore blocks including shaft pillar blocks where scattered mining can be exploited, and a number of areas of virgin ground where conventional mining can take place, with the potential to exploit zone 3 in the Freddies 9 Shaft area.

During fiscal 2015 the operation was placed on care and maintenance. This decision was taken based on the financial performance of the operation and the future capital that was required to extend the life of the mine.


Crushing and Grinding


Processing

  • Gravity separation
  • Agitated tank (VAT) leaching
  • Concentrate leach
  • Carbon in pulp (CIP)
  • Elution
  • Solvent Extraction & Electrowinning
  • Cyanide (reagent)

Source: Subscription required

Summary:

Ore mined is processed at the Target plant.

Target Gold Plant was designed and commissioned in November 2001 to treat ore from Target 1 Shaft. The plant was designed to treat a 105 000 tons per month with a potential to expand to 160 000 tons for future demand. Currently, the plant treats ore from Target 1 shaft, Target 3 shaft, and waste dump with the majority being from Target 1 shaft and Target 3 shaft material. The plant was recently modified by installing a run of mine mill (ROM) to replace the two stage milling circuit, due to steel ball costs.

Ore is treated by run of mine milling, with part of the mill product directed to the gravity concentrator to recover the gravity recoverable gold which is then leached through the Intense Leach Reactor, followed by electrowinning and gold smelting using induction furnace. The other mill product is directed to the thickener for densification, followed by leaching through 6 of the 7 mechanical agitated leach tanks. The ........

Recoveries & Grades:

CommodityParameter20152014
Gold Head Grade, oz/ton 0.160.14

Production:

CommodityUnits20152014
Gold oz 15,52945,429
All production numbers are expressed as metal in doré.

Operational Metrics:

Metrics20152014
Tonnes milled 99 k tons331 k tons

Reserves at June 30, 2020:

CategoryTonnage CommodityGradeContained Metal
Measured 0.6 Mt Gold 9.19 g/t 178 koz
Indicated 2.9 Mt Gold 10.17 g/t 965 koz
Inferred 1.2 Mt Gold 8.66 g/t 340 koz
Total Resource 4.8 Mt Gold 9.66 g/t 1,483 koz

Commodity Production Costs:

CommodityUnits20152014
Cash costs Gold USD 958 / oz 1,185 / oz
All-in sustaining costs (sold) Gold USD 1,114 / oz 1,514 / oz

Financials:

Units20152014
Capital expenditures M USD 1.78   12.4  
Revenue M USD 19.4   58.8  
Gross profit M USD 3.96   4.99  


Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Jan 26, 2021
Subscription required - Subscription is required.


Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2020
................................... Subscription required 2019
Year-end Mineral Reserves 2018
Annual Report 2016
Form 20-F 2016
Year-end Mineral Reserves 2016
Other 2014
Subscription required - Subscription is required.

Aerial view:

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