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Cote d'Ivoire
Koné (Kone) Project

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 Location:
85 N from Séguéla, Cote d'Ivoire

  Project Contacts:
885 West Georgia Street, Suite 2000
Vancouver
British Columbia, Canada
V6C 3E8
Phone  ...  Subscription required
Fax+1-(604)-689-4250
WebsiteWeb
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Overview

StagePermitting
Mine TypeOpen Pit
Commodities
  • Gold
Mining Method
  • Truck & Shovel / Loader
Mine Life14.8 years (as of Jan 1, 2022)
Permitting process well underway; all requisite approvals expected in Q3 2022.
Latest NewsMontage Releases First Results from Satellite Drill Program including 78m of 2.70g/t Gold at Gbongogo and 20m of 7.22g/t Gold at Lokolo Main     January 23, 2023


Owners

Source: p. 2
CompanyInterestOwnership
Avant Minerals Inc. 30 % Indirect
Perseus Mining Ltd. 31.5 % Indirect
In Côte d’Ivoire, Orca Gold created Montage Gold Corp. (“Montage”) on July 23, 2019, transferring its permits and permit applications in Côte d’Ivoire to Montage and subsequently on August 27, 2019, entered into a share purchase agreement with Avant Minerals Inc. pursuant to which Avant transferred its assets in Côte d’Ivoire and Burkina Faso to Montage. Following the completion of the Avant transaction, the ownership of Montage was Orca 45%, Avant 30% and investors in the private placement 25%. Orca’s ownership in Montage decreased from an initial 45% to 31.5% following Montage’s initial public offering on October 23, 2020.

Perseus Mining Limited is pleased to announce that its acquisition of all of the outstanding common shares of Orca Gold Inc. not already owned by Perseus, by way of a statutory plan of arrangement under the Canada Business Corporations Act (the “Arrangement”) completed on 19 May 2022. As a result of the Arrangement, Orca is a wholly-owned subsidiary of Perseus.

Contractors

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Deposit Type

  • Orogenic
  • Vein / narrow vein
  • Mesothermal


Summary:

The Koné deposit is considered to be an orogenic lode gold-style system, hosted by brittle ductile shearing within a quartz diorite/mafic volcaniclastic package in a Birimian Greenstone sequence of the West Africa Craton.

Koné is a mesothermal, structurally controlled gold deposit hosted within a north-south trending, westerly dipping (50?), composite package of sheeted 20-30m thick diorite intrusions which have been emplaced by multiple intrusive pulses. These diorite intrusions are of the same composition and genetically associated but display a variety of textures. The package as a whole is up to 350m in true thickness and can currently be traced along strike for 2.4km

The Koné Gold deposit is hosted by the composite diorite body and is characterised by very large mineralised true widths, averaging >200m over the southern half of the deposit, with a maximum of up to 330m (MDD015B, 330.7m grading 0.58g/t) i.e. almost the entire width of the composite diorite body.

Higher grades (1-1.5 g/t) are associated with high density “swarms” of 2-5mm thick, foliation parallel, translucent white to smoky quartz veinlets containing fine grained sulphide. Lower grades are related to dissminated fine grained pyrite. Importantly, no significant silicification of the host rocks is associated with the mineralisation resulting in positive comminution characteristics.

Mineralisation at Koné is interpreted to be controlled by a major thrust shear at t ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

Based on the geometry of the deposit and the proximity to surface, the deposit will be mined via an open pit mining using a conventional truck and shovel mining fleet.

Pit optimizations were run using processing cost and recovery data. Mining costs were broken into base and incremental mining costs. Costs were based on West African mining contractor bids. The operating strategy assumes that mining operations will be carried out by a contractor on a cost per tonne basis, utilising a mining fleet comprised of 145t rigid body haul trucks with suitably sized loading units.

The Koné deposit will be exploited through a two pits, a smaller northern pit which reaches a depth of 130m and a larger southern pit which extends to a depth of 470 metres deep. The overall strip ratio for the pits is 0.93:1. Based on the assumed mining equipment, a bench height of 5 meters in the oxide, 10 metres in the transition and 15m in the fresh rock was designed, although geotechnical conditions allowed for up to two benches to be excavated between safety berms, within the fresh rock. There may be some opportunity to mine to higher bench heights in areas of bulk waste.

A ramp up period of 12 months was assumed at the start of the schedule the total optimised production tonnage is 35 million tonnes per year. The target for Year 1 was 9.9mt and 11.0 mt of high grade crusher feed respectively, with all subsequent years targeting 11.0 mtpa inclusive of the lower grade stoc ........


Crushing and Grinding
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Processing

Flow Sheet: Subscription required

Summary:

- subscription is required.


Projected Production:

CommodityUnitsAvg. AnnualLOM
Gold koz 2073,059
All production numbers are expressed as metal in doré.

Operational Metrics:

Metrics
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
Annual processing capacity  ......  Subscription required
Annual mining rate  ......  Subscription required
* According to 2022 study.
Subscription required - Subscription is required.

Reserves at February 14, 2022:
The Mineral Reserve cut off grade range from 0.19 g/t to 0.31g/t.
The Mineral Resources cut off grade 0.2g/t cut-off.

CategoryTonnage CommodityGradeContained Metal
Probable 161.1 Mt Gold 0.66 g/t 3.42 M oz
Indicated 225 Mt Gold 0.59 g/t 4.27 M oz
Inferred 22 Mt Gold 0.45 g/t 0.32 M oz

Commodity Production Costs:

CommodityUnitsAverage
Total cash costs (sold) Gold USD  ......  Subscription required&nbs
All-in sustaining costs (sold) Gold USD  ......  Subscription required&nbs
Assumed price Gold USD  ......  Subscription required&nbs
* According to 2022 study / presentation.
Subscription required - Subscription is required.

Operating Costs:

Units2022
OP mining costs ($/t mined) USD 2.73 *
OP mining costs ($/t milled) USD  ......  Subscription required
Processing costs ($/t milled) USD  ......  Subscription required
G&A ($/t milled) USD  ......  Subscription required
Total operating costs ($/t milled) USD  ......  Subscription required
* According to 2022 study.
Subscription required - Subscription is required.

2022 Study Costs and Valuation Metrics :

MetricsUnitsLOM Total
Pre-Production capital costs $M USD  ......  Subscription required
Sustaining CapEx $M USD  ......  Subscription required
Total CapEx $M USD  ......  Subscription required
OP OpEx $M USD  ......  Subscription required
Processing OpEx $M USD 1,295
G&A costs $M USD 150
Total OpEx $M USD  ......  Subscription required
Total Taxes $M USD  ......  Subscription required
Royalty payments $M USD  ......  Subscription required
Net 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
Subscription required - Subscription is required.


Proposed Heavy Mobile Equipment as of February 14, 2022:
HME TypeModelQuantityLeased or
Contractor
Backhoe ....................... Subscription required ....................... Subscription required Leased
....................... Subscription required ....................... Subscription required ....................... Subscription required Leased
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....................... Subscription required ....................... Subscription required ....................... Subscription required Leased
....................... Subscription required ....................... Subscription required ....................... Subscription required Leased
....................... Subscription required ....................... Subscription required ....................... Subscription required Leased
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....................... Subscription required ....................... Subscription required ....................... Subscription required Leased
....................... Subscription required ....................... Subscription required ....................... Subscription required Leased
....................... Subscription required ....................... Subscription required ....................... Subscription required Leased
Subscription required - Subscription is required.

Mine Management:

Job TitleNamePhoneEmailProfileRef. Date
....................... Subscription required ....................... Subscription required ....................... Subscription required Subscription required Feb 14, 2022
....................... Subscription required ....................... Subscription required Subscription required Feb 14, 2022
....................... Subscription required ....................... Subscription required ....................... Subscription required ....................... Subscription required Subscription required Mar 28, 2022
Subscription required - Subscription is required.


Corporate Filings & Presentations:

DocumentYear
Corporate Presentation 2022
Feasibility Study Report 2022
Press Release 2022
Press Release 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
Subscription required - Subscription is required.

News:

NewsDate
Montage Releases First Results from Satellite Drill Program including 78m of 2.70g/t Gold at Gbongogo and 20m of 7.22g/t Gold at Lokolo Main January 23, 2023

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