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Canada
Marban Project

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 Location:
12 km NW from Val-d’Or, Quebec, Canada

  Project Contacts:
1440 – 155 University Ave
Toronto
Ontario, Canada
M5H 3B7
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  • Overview
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  • Mining
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  • Reserves
  • Costs & Financials
  • Fleet
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  • Filings & News

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Overview

StagePermitting
Mine TypeOpen Pit
Commodities
  • Gold
Mining Method
  • Truck & Shovel / Loader
Mine Life9.6 years (as of Jan 1, 2022)
Latest NewsO3 Mining Releases Outlook 2023     January 16, 2023


Owners

Source: p. 24
CompanyInterestOwnership
O3 Mining Inc. 100 % Direct
The Marban property contains six past-producing mines (Marban, Norlartic, Kierens, Malartic Hygrade, Orion No.8 and Camflo (below 800 metres (m) from the surface)), which collectively produced 879,000 ounces of gold between 1959 and 1992. O3 Mining owns 100% of the Marban property.

Contractors

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Deposit Type

  • Vein / narrow vein
  • Mesothermal
  • Orogenic


Summary:

The various mineralization styles present on the Marban property can be characterized as sub-types of the orogenic class of gold deposits, most commonly shear-zone hosted gold mineralization within greenstone terrains.

Greenstone-hosted quartz-carbonate vein deposits occur as quartz and quartz-carbonate veins, with valuable amounts of gold and silver in faults and shear zones located within deformed terrains of ancient to recent greenstone belts commonly metamorphosed at greenschist facies (Dubé and Gosselin, 2007). Greenstone-hosted quartz-carbonate vein deposits are a subtype of lode gold deposits (Poulsen et al., 2000). They are also known as mesothermal, orogenic. They consist of simple to complex networks of gold-bearing, laminated quartz-carbonate fault-fill veins in moderately to steeply dipping, compressional brittle-ductile shear zones and faults, with locally associated extensional veins and hydrothermal breccias.

The Marban property lies within the Archean Abitibi greenstone belt of the Superior Province, Quebec, which consists of alternating east-trending metavolcanic-plutonic and sedimentary belts that are bounded by crustal-scale faults. The Abitibi belt has been divided into a Northern Volcanic Zone (NVZ) and a Southern Volcanic Zone (SVZ) (Chown et al., 1992). The Marban property is located in the southern portion of the SVZ, where the Parfouru fault separate the Blake River segment to the west from Malartic segment to the east (Daigne ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

Mining of the Marban project will be carried out using conventional open pit techniques using 10 m benches. An owner mined open pit operation is planned with hydraulic shovels and mining trucks, including the outsourcing of certain support activities such as blasting.

Production drilling of the 10 m benches will be carried out by 6.5-inch (165.1 mm) production drills with the capabilities of rotary drilling and down the hole (DTH) drilling. Blast holes are loaded with high energy bulk emulsion. The majority of the loading of the pit will be carried out by three 16 m3 electric hydraulic shovels, one 12 m3 diesel electric shovel, and a 10.7 m3 diesel front end loader. The loading fleet with be augmented with 60 t shovels that will handle overburden material and scaling. The primary loading fleet with service a fleet of 150 t trucks and the secondary overburden loading units wills service a fleet of 100 t trucks.

The mining of the Marban project will occur in five separate pits. The Marban pit is the largest and contains three nested phases. The Norlartic pit is the second largest and is composed of two nested pits. The four remaining pits are small, singlephased pits. Waste rock will be sent to the primary waste dump which is phased into two sections to reduce initial footprint and hauling from pits. Overburden material will go to one of two overburden stockpiles located adjacent to each of the pit groups. The pits generate 237.3 Mt of waste rock and 48.9 ........


Crushing and Grinding
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Processing

Flow Sheet: Subscription required

Summary:

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Projected Production:

CommodityProductUnitsAvg. AnnualLOM
Gold Payable metal koz 1,551
Gold Metal in doré koz 1611,552

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
Daily processing rate  ......  Subscription required
Tonnes processed, LOM  ......  Subscription required
Annual processing rate  ......  Subscription required
Annual ore mining rate  ......  Subscription required
* According to 2022 study.
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Reserves at August 17, 2022:
Mineral reserve cut-off grade is 0.3 g/t Au for all materials.
The lower cut-off used to report open-pit mineral resources is 0.30 g/t Au. Underground mineral resources have been reported using a 3.0 g/t lower cut-off at Marban, and a 2.5 g/t lower cut-off at Kierens-Norlartic.

CategoryOreTypeTonnage CommodityGradeContained Metal
Probable In-Situ (OP) 56,437 kt Gold 0.91 g/t 1,647 koz
Indicated In-Situ (OP) 67,232 kt Gold 1.07 g/t 2,318 koz
Indicated In-Situ (UG) 460 kt Gold 3.75 g/t 55 koz
Indicated Total 67,692 kt Gold 1.09 g/t 2,374 koz
Inferred In-Situ (OP) 2,106 kt Gold 1.2 g/t 81 koz
Inferred In-Situ (UG) 1,043 kt Gold 4.25 g/t 142 koz
Inferred Total 3,149 kt Gold 2.21 g/t 223 koz

Commodity Production Costs:

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

Units2022
OP mining costs ($/t mined) CAD 2.6 *
OP mining costs ($/t milled) CAD  ......  Subscription required
Processing costs ($/t milled) CAD  ......  Subscription required
G&A ($/t milled) CAD  ......  Subscription required
Total operating costs ($/t milled) CAD  ......  Subscription required
* According to 2022 study.
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2022 Study Costs and Valuation Metrics :

MetricsUnitsLOM Total
Initial CapEx $M CAD  ......  Subscription required
Sustaining CapEx $M CAD  ......  Subscription required
Closure costs $M CAD  ......  Subscription required
Total CapEx $M CAD  ......  Subscription required
OP OpEx $M CAD  ......  Subscription required
Processing OpEx $M CAD 442.5
Refining costs $M CAD  ......  Subscription required
G&A costs $M CAD 78.1
Total OpEx $M CAD  ......  Subscription required
Total Taxes $M CAD  ......  Subscription required
Royalty payments $M CAD  ......  Subscription required
Gross revenue (LOM) $M CAD  ......  Subscription required
Pre-tax Cash Flow (LOM) $M CAD  ......  Subscription required
After-tax Cash Flow (LOM) $M CAD  ......  Subscription required
Pre-tax NPV @ 5% $M CAD  ......  Subscription required
Pre-tax NPV @ 10% $M CAD  ......  Subscription required
Pre-tax NPV @ 8% $M CAD  ......  Subscription required
After-tax NPV @ 5% $M CAD  ......  Subscription required
After-tax NPV @ 10% $M CAD  ......  Subscription required
After-tax NPV @ 8% $M CAD  ......  Subscription required
Pre-tax IRR, %  ......  Subscription required
After-tax IRR, %  ......  Subscription required
Pre-tax payback period, years  ......  Subscription required
After-tax payback period, years  ......  Subscription required
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Heavy Mobile Equipment as of August 24, 2022:
HME TypeSizeQuantityStatusLeased or
Contractor
Dozer (crawler) 436 HP ....................... Subscription required Proposed Leased
....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed Leased
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Forklift 4 t ....................... Subscription required Existing Leased
....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed Leased
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....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed Leased
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Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Aug 24, 2022
....................... Subscription required ....................... Subscription required Subscription required Aug 24, 2022
....................... Subscription required ....................... Subscription required Subscription required Dec 17, 2022
....................... Subscription required ....................... Subscription required Subscription required Dec 17, 2022
....................... Subscription required ....................... Subscription required Subscription required Dec 17, 2022
Subscription required - Subscription is required.

Staff:

Total WorkforceYear
Subscription required 2022

Corporate Filings & Presentations:

DocumentYear
Corporate Presentation 2022
Pre-Feasibility Study Report 2022
................................... Subscription required 2020
Subscription required - Subscription is required.

News:

NewsDate
O3 Mining Releases Outlook 2023 January 16, 2023
O3 Mining Inc.: Notice of Public Consultation for the Marban Engineering Project January 4, 2023
O3 Mining - Marban Continues To Show Growth Potential December 22, 2022
O3 Mining Inc. : Marban Gold Mine Project - Comments Invited on the Summary of the Initial Project Description December 1, 2022

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