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South Africa
Barberton Operation (Barberton Mine, BTRP Mine)

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 Location:
11.6 km NE from Barberton, South Africa

  Regional Office:
The Firs Office Building 1st Floor, Office 101 Cnr. Cradock and Biermann Avenues
Johannesburg
South Africa
2146
Phone  ...  Subscription required
Fax+27-(0)-11-880-1240
WebsiteWeb
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeOpen Pit / Underground
Commodities
  • Gold
Mining Method
  • Mechanized Cut & Fill
Processing
  • Bacterial oxidation (BIOX)
  • Carbon in leach (CIL)
  • Solvent Extraction & Electrowinning
  • Cyanide (reagent)
Mine Life20 years (as of Jan 1, 2019)
The Barberton Mines operation has various components, including three working underground mines: Fairview, Sheba and New Consort, the BIOX® gold processing plant and the Barberton tailings retreatment plant (BTRP).


Owners

Source: p. 9
CompanyInterestOwnership
Pan African Resources plc 74 % Indirect

Deposit Type

  • Hydrothermal
  • Tailings


Summary:

The mineralisation at Barberton Mines is classified as Achaean epigenetic hydrothermal lode gold deposits within a granite greenstone terrain. The distribution and localisation of these orebodies in the Barberton Greenstone Belt can be largely attributed to the combined influence of thermal metamorphism and structural deformation.

The Barberton ores are mineralised shears with gold occluded in sulphide minerals. The sulphides often occur as massive assemblages in the shear structure. Lower-grade ore, in the wall rock, form as a result of the alteration process during fluid flow and is associated with disseminated sulphide minerals. A late stage of gold mineralisation occurred in brittle fractures with the formation of quartz veins. These quartz veins often contain free gold in visible clusters.


Mining Methods

  • Mechanized Cut & Fill


Summary:

The mining methods used at Barberton Mines’ underground operations are semi-mechanised up-dip cut and fill and up-dip room and stick. An estimated 16% to 18% of gold is recovered by sweeping and vamping contractors focusing on worked-out areas and mining high-grade pillars.

Fairview Mine produces approximately 45% of the combined gold, Sheba Mine and New Consort Mine produce 25% and 10%, respectively, and the BTRP contributes 19% of Barberton Mines’ gold production.


Crushing and Grinding


Processing

  • Bacterial oxidation (BIOX)
  • Carbon in leach (CIL)
  • Solvent Extraction & Electrowinning
  • Cyanide (reagent)

Source: Subscription required

Summary:

Gold is extracted using the BIOX® gold extraction process, an environmentally friendly process which uses bacteria to release gold from the sulphide ore.

The BTRP has been designed to treat tailings through a Carbon in Leach circuit using electro-winning and smelting to produce a saleable product.

Recoveries & Grades:

CommodityParameter20192018201720162015
Gold Head Grade, g/t 2.23.343.73.3

Production:

CommodityUnits20192018201720162015
Gold oz  ......  Subscription required  ......  Subscription required98,508113,281105,776
Subscription required - Subscription is required.

Operational Metrics:

Metrics20192018201720162015
Annual mining capacity  ......  Subscription required  ......  Subscription required  ......  Subscription required1.5 Mt1.5 Mt
Annual production capacity  ......  Subscription required  ......  Subscription required  ......  Subscription required125 koz of gold metal120 koz of gold metal
Tonnes processed  ......  Subscription required  ......  Subscription required  ......  Subscription required1,227,598 t1,232,376 t
Subscription required - Subscription is required.

Reserves at June 30, 2019:

CategoryOreTypeTonnage CommodityGradeContained Metal
Proven & Probable In-Situ (UG) 8 Mt Gold 5.65 g/t 1.4 M oz
Proven & Probable Tailings 9.9 Mt Gold 1.66 g/t 0.54 M oz
Proven & Probable Total 18.11 Mt Gold 3.42 g/t 2 M oz
Total Resource In-Situ (UG) 12.1 Mt Gold 7.85 g/t 3.1 M oz
Total Resource Tailings 21.6 Mt Gold 1.28 g/t 0.9 M oz
Total Resource Total 34.4 Mt Gold 3.66 g/t 4.05 M oz

Commodity Production Costs:

CommodityUnits20192018201720162015
Cash costs Gold USD  ......  Subscription required  ......  Subscription required 797 / oz 599 / oz 758 / oz
All-in sustaining costs (AISC) Gold USD  ......  Subscription required  ......  Subscription required 942 / oz 746 / oz 902 / oz
All-in costs Gold USD  ......  Subscription required  ......  Subscription required 1,001 / oz 760 / oz 916 / oz
Subscription required - Subscription is required.

Operating Costs:

Units20192018201720162015
Total operating costs ($/t milled) ZAR 9281,045998801744

Financials:

Units20192018201720162015
Capital expenditures M ZAR  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 112.6  
Revenue M ZAR  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 1,469  
EBITDA M ZAR  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 505.5  
Subscription required - Subscription is required


Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Mar 12, 2020
....................... Subscription required ....................... Subscription required Subscription required Mar 12, 2020
....................... Subscription required ....................... Subscription required Subscription required Mar 12, 2020
Subscription required - Subscription is required.

Staff:

EmployeesContractorsTotal WorkforceYear
Subscription required Subscription required Subscription required 2019
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

Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2018
................................... Subscription required 2018
Annual Report 2017
Annual Report 2016
Annual Report 2015
Year-end Mineral Reserves 2013
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Aerial view:

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