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Cote d'Ivoire
APG Project (Abujar)

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 Location:
32 Km W from Daloa, Cote d'Ivoire

  Project Contacts:
Abidjan-II Plateaux 7ème tranche
Abidjan
Cote d'Ivoire
11 BP 776
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  • Geology
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  • Reserves
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Overview

StagePreliminary Economic Assessment
Mine TypeOpen Pit
Commodities
  • Gold
Mining Method
  • Truck & Shovel / Loader
Production Start...
Mine Life10 years (as of Jan 1, 2022)
The Scoping Study has been undertaken for the purpose of evaluating the potential development of a heap leach (HL) operation at the APG deposit which is part of the Abujar Gold Project in Côte d’Ivoire.

Since commencement, ore processed at Abujar has primarily been mined from the AG open pit. Mining has focused on AG Main stages 1, 2 and 3 with some contributions from AG South stage 1 pit. AG Main open pit stage 4 and stage 5 cutbacks are due to be completed in 2024 and 2025 respectively, whereafter mining will move on to AG South cutback pits. Mining in APG starts in 2026. The APG open pit is approximately 9km from the processing plant, the current LOMP assumes ore to be transported from APG to the existing Abujar processing plant.


Owners

Source: p. 1,10
CompanyInterestOwnership
Government of Côte d’Ivoire 10 % Indirect
Tietto Minerals Ltd. 88 % Indirect
In July 2020, Tietto Minerals, through its 90%-owned subsidiary Tiebaya Gold Sarl, applied for a gold mineral mining licence within the Abujar Middle Tenement, part of the Abujar Project. On 22 January 2021, Tietto Minerals increased its interest in the Abujar Gold Project’s Mining Licence to 88% with 10% for Côte D’Ivoire government and 2% for local partners. APG deposit is part of the Abujar Gold Project.

Contractors

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Deposit Type

  • Mesothermal
  • Vein / narrow vein


Summary:

The deposits making up the Abujar Gold Project are located within a NNE-SSW orientated body of granitoid migmatite and is hosted within in an interpreted regional shear structure. This is then enclosed within two mica granite bodies of similar interpreted orientation which are regionally referred to as granodiorites. Greenstones are rare in the immediate vicinity but have been mapped as isolated bodies to the south and east. Two styles of deformation are interpreted to be present within the drill cores at Abujar; these include ductile deformation and brittle deformation. The gold mineralisation is interpreted to be related to the deformed granodiorite, in shear zones, with sulphides (mainly pyrite and minor chalcopyrite) associated with visible gold. The mineralisation seems to be located within the granodiorite at the boundary between two different intensities of deformation i.e. weakly deformed and highly strained. Alteration is characterised by chlorite, sericite, calcite, secondary quartz and disseminated pyrite. This assemblage is well developed in schistose, foliated rocks with the presence of quartz veins or veinlets. Deposits within the Abujar Project resemble typical shear zone deposits of the West African granite-greenstone terrane. The Abujar deposit (AG) is associated with a major regional shear zone and is developed in granodiorite hosts similar to that which hosts the Pischon & Golikro deposits (APG) and the interpreted extension areas in the Gamina deposits ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

The mining method for the extraction of ore is to be selective open cut mining utilising hydraulic excavator and off-highway rear dump truck. Contractor operation for mining is underway at the AG deposit.

To account for loss and dilution the in situ Mineral Resource model was converted to a run-of-mine mining model by regularisation of the subblocks to a size 2.5 m east-west, 6.5m north-south and 2.5 m vertical for APG deposit.

Mining regions were sub-divided into domains and varying parameters assigned based on material characteristics. In general, oxide rock had an overall slope angle of ~40 degrees, while in fresh and transition rock this was ~50 degrees.

The ROM (mining) model used to determine quantities and grades was calculated to have a global ore tonnage loss of 15% loss and 13% dilution for the APG deposit. Local ore loss and dilution will vary slightly throughout the deposits.

In terms of infrastructure to support the mining operation it is planned that the bulk of the mining supporting infrastructure will be provided by the mining contractor.


Crushing and Grinding
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Processing

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Summary:

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Projected Production:

CommodityUnitsAvg. AnnualLOM
Gold koz 85852
All production numbers are expressed as metal in doré.

Operational Metrics:

Metrics
Annual mining rate  ......  Subscription required
Annual processing capacity  ......  Subscription required
Stripping / waste ratio  ......  Subscription required
Waste tonnes, LOM  ......  Subscription required
Ore tonnes mined, LOM  ......  Subscription required
Total tonnes mined, LOM  ......  Subscription required
Tonnes processed, LOM  ......  Subscription required
* According to 2022 study.
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Reserves at February 28, 2022:
APG Mineral Resources are reported at 0.3 g/t Au cut off within a 2,000 USD pit shell; and 1.1 g/t Au cut off below the pit shell.

Ore Reserves at Marginal cut-off grades for APG: Oxide 0.32 g/t Au, Transition 0.32 g/t Au and Fresh 0.33 g/t Au.

CategoryTonnage CommodityGradeContained Metal
Probable 3.2 Mt Gold 0.7 g/t 0.07 M oz
Indicated 8.5 Mt Gold 0.7 g/t 0.2 M oz
Inferred 33.3 Mt Gold 0.7 g/t 0.76 M oz
Total Resource 41.9 Mt Gold 0.7 g/t 0.96 M oz

Commodity Production Costs:

CommodityUnitsAverage
All-in sustaining costs (AISC) Gold USD  ......  Subscription required
Assumed price Gold USD  ......  Subscription required
* According to 2022 study / presentation.
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Operating Costs:

Units2022
OP mining costs ($/t mined) USD 2.3 *  
* According to 2022 study.

2022 Study Costs and Valuation Metrics :

MetricsUnitsLOM Total
Pre-Production capital costs $M USD  ......  Subscription required
Sustaining CapEx $M USD  ......  Subscription required
Gross revenue (LOM) $M USD  ......  Subscription required
EBITDA (LOM) $M USD  ......  Subscription required
Pre-tax Cash Flow (LOM) $M USD  ......  Subscription required
After-tax Cash Flow (LOM) $M USD  ......  Subscription required
Pre-tax NPV @ 5% $M USD  ......  Subscription required
After-tax NPV @ 5% $M USD  ......  Subscription required
Pre-tax IRR, %  ......  Subscription required
After-tax IRR, %  ......  Subscription required
After-tax payback period, years  ......  Subscription required
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Water Supply
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Heavy Mobile Equipment:

Mine Management:

Job TitleNamePhoneProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Jan 27, 2023
....................... Subscription required ....................... Subscription required ....................... Subscription required Subscription required Jan 27, 2023
....................... Subscription required ....................... Subscription required ....................... Subscription required Jan 27, 2023
....................... Subscription required ....................... Subscription required Subscription required Jan 27, 2023
....................... Subscription required ....................... Subscription required Subscription required Jan 27, 2023
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Corporate Filings & Presentations:

DocumentYear
Operations & Technical Update 2023
Other 2022
Preliminary Economic Assessment 2022
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