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Ghana
Bibiani Mine

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 Location:
1 km NE from Bibiani, Ghana

  Address:
Old Mill Area
P.O. Box 98
Bibiani
Ghana
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WebsiteWeb
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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
Mining Method
  • Truck & Shovel / Loader
Production Start...
Mine Life2030
The Bibiani Mine has completed its commissioning, with the first gold pour announced on July 7, 2022.

Gold production ramp-up is progressing, to produce 225 to + 340Koz/ year through 2032 (with underground mining to commence 2025).
Latest NewsAsante Provides Operations and Corporate Update     September 21, 2023


Owners

Source: p. 3
CompanyInterestOwnership
Government of Ghana 10 % Indirect
Asante Gold Corp. 90 % Indirect
Asante Gold Corp. acquired the Bibiani Gold Project in Ghana from Resolute Mining Limited (“Resolute”) through the purchase of all the issued and outstanding common shares of Mensin Bibiani Pty. Ltd, with the Ghanaian Government retaining 10% free carried interest in the mining operations.

Contractors

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Deposit Type

  • Mesothermal
  • Breccia pipe / Stockwork
  • Vein / narrow vein


Summary:

The gold deposits at Bibiani are structurally controlled mesothermal lode-type deposits. The mineralization is associated with quartz veins and quartz stockworks which are hosted within a sequence of Lower Birimian fine to medium grained turbiditic sandstones. The sedimentary turbidite sequence is tightly folded, with west-dipping axial planes and localised development of steep west-northwest dipping shear zones which have acted as conduits for the initial gold mineralization. Gold is closely associated with arsenopyrite and pyrite. Sericite alteration is also commonly observed, both along mineralized structures, and associated with the felsic intrusives. High-grade veins often occur within graphitic shales which generally contain significant sedimentary/metamorphic pyrite.

The Bibiani deposit is hosted within a thick sequence of fine-grained graded turbidites with localised thin interbeds of fine to medium- grained turbiditic sandstones. The orebody is a mesothermal lode type deposit which is similar to the lode deposits in the Konongo Axim belt hosting the significant Obuasi deposit. The Bibiani orebody geometry is structurally controlled by a steep, north to north-east trending shear corridor 200 - 400m wide, within Lower Birimian sediments and close to the \ eastern contact of the Upper Birimian. The shear zone includes quartz infill as massive veins and quartz stock works. In the widest parts of the orebody, two and locally three individual quartz reefs or lod ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

Mining at Bibiani will be by conventional open pit mining methods involving drilling, blasting, loading and hauling with diesel driven equipment. Bench heights for drilling and blasting will be 6.0m. Loading of the blasted mineralised material and waste will take place in two by three metre flitches on each bench.

The open pit mining operation will be undertaken by a mining contractor, who has been engaged and has commenced mining operations.

The Bibiani mining operation is planned to sustain a steady state production rate of 4.0Mtpa. The current LoM plan includes mining from three pits; the Main pit and two satellite pits; namely Walsh and Straus Pits.

The mining strategy that will be followed at Bibiani is to commence pre-stripping at the Bibiani Main Pit and Walsh simultaneously. This work started in March 2022. Mineralised material will be produced from the Satellite Pits (Walsh and Strauss) while waste stripping continues in the Bibiani Main Pit and production from the Bibiani Main Pit is built up. In the early years of operation production will be from a combination of the Satellite Pits and the Bibiani Main Pit. Once the Satellite Pits are mined out the full production rate will be produced from the Bibiani Main Pit.

On February 28, 2022, Open Pit Mining Operations have started, with focus on delivery of ore from the Strauss and Walsh satellite pits. The #1 Cutback at the Main Pit has also started. Refurbishment of mine haula ........


Crushing and Grinding
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Processing

Flow Sheet: Subscription required

Summary:

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Production:
The first gold pouring at the Bibiani gold mine took place in July 2022.

CommodityUnits2023
Gold oz
Gold Equivalent oz  ......  Subscription required
All production numbers are expressed as metal in doré. ^ Guidance / Forecast.

Operational Metrics:

Metrics2023
Annual ore mining rate
Annual processing capacity  ......  Subscription required
Ore tonnes mined  ......  Subscription required
Tonnes processed  ......  Subscription required
^ Guidance / Forecast.
Subscription required - Subscription is required.

Reserves at February 28, 2022:
The Mineral Reserves are stated at a price of US$1850/oz as at 28 February 2022.

Mineral Resources: A 0.5g/t gold cut-off has been applied and constrained by a RPEEE US$1,950 (metal price) Resource pit shell.

CategoryTonnage CommodityGradeContained Metal
Proven 0.258 Mt Gold 2.16 g/t 0.018 M oz
Probable 28.151 Mt Gold 2.14 g/t 1.932 M oz
Proven & Probable 28.409 Mt Gold 2.14 g/t 1.95 M oz
Measured & Indicated 31.57 Mt Gold 2.24 g/t 2.286 M oz
Inferred 4.02 Mt Gold 2.74 g/t 0.358 M oz

Commodity Production Costs:

CommodityUnits2023
All-in sustaining costs (sold) Gold Equivalent CAD  ......  Subscription required
Subscription required - Subscription is required.

Financials:

Units20232019201820172016
Capital expenditures M AUD  ......  Subscription required 9.8   17.7   9.3  
Revenue M  ......  Subscription required
Subscription required - Subscription is required


Water Supply
Source: Subscription required

- subscription is required.


Proposed Heavy Mobile Equipment as of February 28, 2022:
HME TypeModelSizeQuantityLeased or
Contractor
Bulldozer ....................... Subscription required ....................... Subscription required Leased
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Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Sep 7, 2023
....................... Subscription required ....................... Subscription required Subscription required Sep 7, 2023
....................... Subscription required ....................... Subscription required Subscription required Sep 7, 2023
....................... Subscription required ....................... Subscription required Subscription required Sep 8, 2023
....................... Subscription required ....................... Subscription required Subscription required Sep 7, 2023
....................... Subscription required ....................... Subscription required Subscription required Sep 7, 2023
Subscription required - Subscription is required.

Staff:

Total WorkforceYear
Subscription required 2019

Corporate Filings & Presentations:

DocumentYear
Corporate Presentation 2023
Annual Information Form 2022
Corporate Presentation 2022
Management Discussion & Analysis 2022
Technical Report 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2019
Annual Report 2018
Fact Sheet 2018
Feasibility Study Report 2018
Quarterly Report 2018
Year-end Mineral Reserves 2018
Annual Report 2017
Feasibility Study Report 2016
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News:

NewsDate
Asante Provides Operations and Corporate Update September 21, 2023
Asante Announces South Russel Maiden Resource and Starter Pit Development at Bibiani Gold Mine September 14, 2023

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