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Cote d'Ivoire
Bonikro Mine (Agbaou)

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 Location:
178 km NW from Abidjan, Cote d'Ivoire
  Address:
6JCJ+CQR, Hiré-Ouatta
Cote d'Ivoire
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Fleet
  • Personnel
  • Filings & News
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Overview

StageProduction
Mine TypeOpen Pit
Commodities
  • Gold
  • Silver
Mining Method
  • Truck & Shovel / Loader
Production Start...
Mine Life2030
Allied Gold has turned around the Bonikro mine since its acquisition in 2019, extending the mine life to seven years supported by gold Mineral Reserves. Ongoing drilling is focused on expanding and converting the existing Inferred Mineral Resource targeting a mine life of over 10 years.

Owners

Source: p. 9
CompanyInterestOwnership
Government of Côte d’Ivoire 10 % Indirect
Allied Gold Corp. 89.89 % Indirect
Afrique Gold (operator) 100 % Direct
In 2019, Allied purchased an 89.89% stake in Afrique Gold (the entity that owns Bonikro). The balance of ownership is held by the Côte d’Ivoire government (10%) and a minority shareholder (0.11%).

Contractors

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Deposit Type

  • Intrusion related
  • Orogenic
  • Vein / narrow vein

Summary:

The Bonikro gold mineralization shares several characteristics with intrusion-related gold deposits, such as the:
• Relatively reduced, calc-alkaline to alkaline composition of the Bonikro granodiorite (Ouatarra, 2015)
• Presence of aplite and pegmatite dykes
• Sulphide-poor mineralogy of the sheeted veins
• Narrow 0.1–1 cm-wide alteration selvages around the sheeted veins implying a low fluid/rock ratio during vein formation
• Gold ± bismuth ± tellurium ± tungsten ± lead ± molybdenum metal association (Masurel et al., 2019).

The Oumé-Féttékro greenstone belt is located in south-central Côte d’Ivoire. The greenstone belt extends ~300 km along strike, parallel to the north-northeast trending regional structural grain. The southern part of the greenstone belt hosts the Bonikro, Hiré and Dougbafla gold deposits.

The south-central part of the Oumé-Féttékro greenstone belt, in the Bonikro district, consists of Toumodi Group supracrustal rocks and the Kan River Plutonic Complex, which consists primarily of the Loukouyakro suite of TTG orthogneisses containing mafic enclaves and local migmatitic orthogneisses.

The Kan River Plutonic Complex is interpreted as the mid to lower crustal remnant of a volcanic arc, metamorphosed and unroofed during the assembly of Baoulé- Mossi Domain (Mortimer, 1990). Similar TTGlike plutonic rocks in the Dabakala area, in the northern part of the Oumé-Féttékro Greenstone Belt, were emplaced ........

Mining Methods

  • Truck & Shovel / Loader

Summary:

The Bonikro, Akissi-So and Chapelle pits are existing operations. In July 2022, the mining operation converted from owner-operated to contract mining by PW Mining. Equipment being used includes Caterpillar 6020 excavators and Caterpillar 777 haul trucks.

Mining in 2023 is being carried out at Akissi-so, Chapelle and Bonikro PB5, with process plant feed supplemented by the low-grade stockpile from Bonikro PB4 which was mined out in October 2015. From 2024 to 2026, mining is undertaken in Bonikro PB5, with the process plant feed supplemented by the lowgrade stockpile until 2029.

The mining operating methodology used is open cut mining on 10.0 m benches with flitches of 3.0–4.0 m increments. In some parts of the pits, selective mining is required with flitches reducing to 2.0–2.5 m dependant on the dip of the orebody.

Waste is taken to the designated waste dumps adjacent to each of the pit stages.

Crushing and Grinding

Processing

Flow Sheet: Subscription required

Summary:

- subscription is required.

Production:

CommodityUnits2022202120202019201820172016
Gold koz  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required117128138
Silver oz  ......  Subscription required  ......  Subscription required  ......  Subscription required
All production numbers are expressed as metal in doré.
Subscription required - Subscription is required.

Operational Metrics:

Metrics202220212020201920182017
Stripping / waste ratio  ......  Subscription required  ......  Subscription required8.2 10.5
Ore tonnes mined  ......  Subscription required  ......  Subscription required1.45 Mt0.97 Mt1,555 kt2,035 kt
Waste  ......  Subscription required  ......  Subscription required11.9 Mt10.2 Mt
Tonnes milled  ......  Subscription required  ......  Subscription required2.45 Mt2.43 Mt2.42 Mt2.5 Mt
Total tonnes mined  ......  Subscription required  ......  Subscription required7,686 kt19,383 kt
Subscription required - Subscription is required.

Reserves at December 31, 2022:
The cut-off grades used for Mineral Reserves reporting were informed by a $1,500/oz gold price and vary from 0.60 to 0.85 g/t Au for different ore types due to differences in recoveries, costs for ore processing and ore haulage.
The Mineral Resource estimate for Bonikro and Hire is listed at 0.5 g/t Au cut-off grade, constrained within an $1,800/oz pit shell and depleted to December 31, 2022.

CategoryTonnage CommodityGradeContained Metal
Proven 4,773 kt Gold 0.76 g/t 117 koz
Probable 10,641 kt Gold 1.54 g/t 528 koz
Proven & Probable 15,413 kt Gold 1.3 g/t 645 koz
Measured 7,212 kt Gold 1.02 g/t 236 koz
Indicated 17,525 kt Gold 1.52 g/t 855 koz
Measured & Indicated 24,737 kt Gold 1.37 g/t 1,091 koz
Inferred 17,543 kt Gold 1.32 g/t 747 koz

Commodity Production Costs:

CommodityUnits2022202120182017
Total cash costs (sold) Gold USD  ......  Subscription required  ......  Subscription required
All-in sustaining costs (sold) Gold USD  ......  Subscription required  ......  Subscription required 801 / oz†   1,105 / oz†  
† Net of By-Product.
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Operating Costs:

Units2022202120202019
OP mining costs ($/t mined) 3.38 &nb2.7 &nb4.26 &nb4.65 &nb
Processing costs ($/t milled)  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
G&A ($/t milled)  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Subscription required - Subscription is required.

Financials:

Units20222021201820172016
Sustaining costs M USD  ......  Subscription required  ......  Subscription required 4   11   15  
Capital expenditures M USD  ......  Subscription required  ......  Subscription required 16   25   32  
Revenue M USD  ......  Subscription required  ......  Subscription required 136   162   162  
Gross profit M USD  ......  Subscription required  ......  Subscription required
EBIT M USD 20   9   28  
EBITDA M USD 69   48   63  
Operating Cash Flow M USD 52   65   76  
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Water Supply
Source: Subscription required

- subscription is required.

Heavy Mobile Equipment as of July 5, 2023:
HME TypeModelSizeQuantityLeased or
Contractor
Dozer (crawler) ....................... Subscription required ....................... Subscription required Leased
Dozer (crawler) ....................... Subscription required ....................... Subscription required Leased
Dozer (crawler) ....................... Subscription required ....................... Subscription required Leased
Dozer (rubber tire) ....................... Subscription required ....................... Subscription required Leased
Dozer (rubber tire) ....................... Subscription required ....................... Subscription required Leased
Drill ....................... Subscription required ....................... Subscription required Leased
Excavator ....................... Subscription required ....................... Subscription required Leased
Excavator ....................... Subscription required ....................... Subscription required Leased
Excavator ....................... Subscription required ....................... Subscription required Leased
Excavator ....................... Subscription required ....................... Subscription required Leased
Grader ....................... Subscription required ....................... Subscription required Leased
Grader ....................... Subscription required ....................... Subscription required Leased
Loader ....................... Subscription required ....................... Subscription required Leased
Loader ....................... Subscription required ....................... Subscription required Leased
Loader ....................... Subscription required ....................... Subscription required Leased
Loader ....................... Subscription required ....................... Subscription required Leased
Loader ....................... Subscription required ....................... Subscription required Leased
Tipper truck ....................... Subscription required ....................... Subscription required Leased
Truck (dump) ....................... Subscription required 90 t ....................... Subscription required Leased
Truck (dump) ....................... Subscription required 90 t ....................... Subscription required Leased
Truck (dump) ....................... Subscription required 90 t ....................... Subscription required Leased
Truck (dump) ....................... Subscription required 90 t ....................... Subscription required Leased
Truck (water) ....................... Subscription required ....................... Subscription required Leased
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Sep 5, 2023
....................... Subscription required ....................... Subscription required Subscription required Sep 5, 2023
....................... Subscription required ....................... Subscription required Subscription required Sep 5, 2023
....................... Subscription required ....................... Subscription required Subscription required Sep 5, 2023
Subscription required - Subscription is required.

Staff:

EmployeesContractorsTotal WorkforceYear
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 2017
Subscription required Subscription required 2016

Corporate Filings & Presentations:

DocumentYear
Corporate Presentation 2023
Press Release 2023
Technical Report 2023
Annual Information Form 2022
Financial Review 2022
Management Discussion & Analysis 2022
Sustainability Report 2022
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
Annual Report 2018
Corporate Presentation 2018
Year-end Mineral Reserves 2018
Annual Report 2017
Corporate Presentation 2017
Press Release 2017
Year-end Mineral Reserves 2017
Corporate Presentation 2016
Fact Sheet 2016
Financial Review 2016
Year-end Mineral Reserves 2016
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