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Tanzania
Buzwagi Mine

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 Location:
8 km E from Kahama, Tanzania

  Regional Office:
Tan House Tower, Plot Number 34/1 Ursino South, New Bagamoyo Road Post Office Box 1081
Dar Es Salaam
Tanzania
Phone  ...  Subscription required
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
Commodities
  • Gold
  • Copper
Mining Method
  • Truck & Shovel / Loader
Processing
  • Gravity separation
  • Flotation
  • Concentrate leach
  • Carbon in leach (CIL)
  • Solvent Extraction & Electrowinning
  • Cyanide (reagent)
Mine Life2021
Buzwagi commenced commercial production in 2009, and the mill is now solely processing stockpiles until mid-2021.


Owners & OPERATOR

Source: p. 59
CompanyInterestOwnership
Government of Tanzania 16 % Indirect
Barrick Gold Corp. 84 % Indirect
Twiga Minerals Corporation Ltd. (operator) 100 % Direct
On September 17, 2019, Barrick acquired all of the Acacia Mining plc. Acacia became a wholly-owned subsidiary of Barrick called Barrick TZ Limited. On January 24, 2020, Barrick announced that the Company had ratified the creation of Twiga Minerals Corporation. The Government of Tanzania will receive a free carried shareholding of 16% in each of the former Acacia mines (Bulyanhulu, Buzwagi and North Mara).

Deposit Type

  • Vein / narrow vein


Summary:

The operation previously mined a low grade shear-hosted quartz-veined deposit, hosted in porphyritic granite.


Mining Methods

  • Truck & Shovel / Loader


Summary:

The Buzwagi site is located in north-western Tanzania, East Africa. Buzwagi is the second largest mining operation in Tanzania and the largest single open pit in the country, which is one of the fastest emerging gold producers in Africa and the continent’s third-largest gold producer after South Africa and Ghana.

The mining of the open pit will use an owner-operated fleet of three excavators, fifteen 150-tonne haul trucks and three blast hole rigs.


Crushing and Grinding


Processing

  • Gravity separation
  • Flotation
  • Concentrate leach
  • Carbon in leach (CIL)
  • Solvent Extraction & Electrowinning
  • Cyanide (reagent)

Source: Subscription required

Summary:

The process plant will treat oxide ore by gravity, flotation and carbon-in-leach (CIL) and will produce gold in the form of gold ore and a copper/gold concentrate to be transported for further refining.

The process plant is designed with a throughput capacity of 12,000 tonnes of ore per day (c. 4.4 million tonnes per year) and produces both doré (approximately 45% of production) and a gold/copper concentrate (approximately 55% of production).

Recoveries & Grades:

CommodityParameter2019201820172016201520142013
Gold Recovery Rate, %  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Gold Head Grade, g/t 0.871.12.11.21.41.71.5
Subscription required - Subscription is required.

Production:

CommodityProductUnits202020192018201720162015
Gold Metal in doré koz  ......  Subscription required ^  ......  Subscription required  ......  Subscription required
Gold Metal in conc./ doré koz 269162171
Copper Metal in concentrate k lbs  ......  Subscription required  ......  Subscription required  ......  Subscription required
^ Guidance / Forecast.
Subscription required - Subscription is required.

Operational Metrics:

Metrics201920182017201620152014
Total tonnes mined  ......  Subscription required  ......  Subscription required  ......  Subscription required21,585 kt24,989 kt24,510 kt
Ore tonnes mined  ......  Subscription required  ......  Subscription required  ......  Subscription required5,317 kt5,658 kt4,692 kt
Waste  ......  Subscription required  ......  Subscription required  ......  Subscription required
Tonnes milled  ......  Subscription required  ......  Subscription required  ......  Subscription required4,404 kt4,085 kt4,086 kt
Annual processing capacity  ......  Subscription required  ......  Subscription required  ......  Subscription required4.4 Mt
Daily processing capacity  ......  Subscription required  ......  Subscription required  ......  Subscription required12,000 t
Stripping / waste ratio  ......  Subscription required  ......  Subscription required  ......  Subscription required2
Subscription required - Subscription is required.

Reserves at December 31, 2019:
The Numbers in the Annual Report 2019 are given on 84% basis.

CategoryOreTypeTonnage CommodityGradeContained Metal
Probable In-Situ (OP) 6.07 Mt Gold 0.84 g/t 0.166 M oz
Indicated In-Situ (OP) 9.404 Mt Gold 0.99 g/t 0.2976 M oz
Inferred In-Situ (OP) 23.81 Mt Gold 0.9 g/t 0.67 M oz

Commodity Production Costs:

CommodityUnits20202019201820172016
Cash costs (sold) Gold USD  ......  Subscription required† 594 / oz† 1,031 / oz†
Total cash costs Gold USD  ......  Subscription required
Total cash costs Gold USD  ......  Subscription required ^†  ......  Subscription required†
All-in sustaining costs (AISC) Gold USD  ......  Subscription required
All-in sustaining costs (AISC) Gold USD  ......  Subscription required ^†  ......  Subscription required†
All-in sustaining costs (sold) Gold USD  ......  Subscription required† 667 / oz† 1,095 / oz†
All-in costs Gold USD  ......  Subscription required
All-in costs Gold USD  ......  Subscription required†
^ Guidance / Forecast.
† Net of By-Product.
Subscription required - Subscription is required.

Financials:

Units201820172016201520142013
Capital expenditures M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 4.97   43   82.5  
Sustaining costs M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 10.9   12.8   31.6  
Revenue M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 213.31   296.23   284.19  
EBIT M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required -163.97   68.5   -674.19  
EBITDA M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 1.47   80.3   56.2  
Subscription required - Subscription is required


Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Aug 4, 2020
....................... Subscription required ....................... Subscription required Subscription required Aug 4, 2020
Subscription required - Subscription is required.


Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2018
Annual Report 2017
Quarterly Report 2017
Annual Report 2016
Project Description 2015
Annual Report 2014
Project Description 2014
Press Release 2011
Subscription required - Subscription is required.

Aerial view:

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