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Canada
Carmacks Project

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 Location:
35 km NW from Carmacks, Yukon, Canada

  Project Contacts:
Suite 904-409 Granville Street
Vancouver
British Columbia, Canada
V6C 1T2
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Fax888-361-3494
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Fleet
  • Personnel
  • Filings & News

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Overview

StagePermitting
Mine TypeOpen Pit
Commodities
  • Copper
  • Gold
  • Silver
Mining Method
  • Truck & Shovel / Loader
Mine Life7 years (as of Jan 1, 2016)
Latest NewsGranite Creek Copper Files Technical Report for Preliminary Economic Assessment on High-Grade Carmacks Copper-Gold-Silver Project in Yukon, Canada     March 7, 2023


Owners

Source:
CompanyInterestOwnership
Granite Creek Copper Ltd. 100 % Indirect
In November 2020, Granite Creek Copper completed its acquisition of Copper North Mining Corp, combining its Stu Cu-Au Project (now “Carmacks North”) with the PEA-stage Carmacks Cu-Au-Ag project, thereby consolidating the southern half of the productive and highly prospective Minto Copper Belt in Canada’s Yukon Territory. This 100%-owned, 176-square-kilometer property is on trend with Pembridge Resources’ high-grade Minto Copper-Gold Mine to the north and its excellent access to infrastructure includes the paved Yukon Highway 2 within 60 km as well as grid power within 12 km.

Contractors

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Deposit Type

  • Hybrid


Summary:

The Carmacks copper-gold deposit is similar to the Minto deposit, located 50 km to the northwest (Sinclair, 1976; Pearson, 1977), except that the Minto deposit is flat lying and primarily a sulphide deposit. A number of theories for the genesis of the Carmacks deposit have been postulated over the years and by different operators. The Cu-Au- Ag metal tenor and association with Late TriassicEarly Jurassic granodiorites would appear to suggest a link between mineralization at Carmacks and the porphyry copper deposits of the same age that occur across British Columbia. However, the linear deposit shape, lack of mineralized material-stage veining and lack of porphyry alteration show clearly that the Carmacks copper deposit is not a classic porphyry system. Evidence from the drilling campaigns suggests the deposit was formed by assimilation of older, copper bearing volcano-sedimentary rocks into the Jurassic Granite Batholith. These “rafts” of mineralized rock would have been variably metamorphosed, and in places completely assimilated into the granodiorite. The volcano-sedimentary rafts would tend to pull apart along bedding planes forming large tabular sheets as observed in Zones 1, 4, 7, 7A, 8, 12, 13 and 2000S. Evidence suggests the sulphide mineralization has been remobilized out of the rafts into the surrounding diorite. At a later time, when the upper parts of the batholith where eroded and the rocks were exposed to the atmosphere and meteoric waters, the sulphide mine ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

The Carmacks project will be developed as an open pit mine. Mining will be conducted on two 12- hour shifts per day for 335 days per year. It was specified that this was to be envisioned to be conducted with three mining crews using a 20-day on/10-day off rotation.

Four mining phases were designed for the Carmacks Project. Inter-ramp slope angles are 52.6°. The design is also based on 10 m mining benches in a double bench configuration for final walls. The main road is 25 m wide at a maximum grade of 10%. This will accommodate trucks of approximately 90 t such as Caterpillar 777 class trucks.


Crushing and Grinding
Source: Subscription required

- subscription is required.


Processing

Flow Sheet: Subscription required

Summary:

- subscription is required.


Projected Production:

CommodityProductUnitsAvg. AnnualLOM
Copper Cathode M lbs 30213
Gold Metal oz  ......  Subscription required  ......  Subscription required
Silver Metal oz  ......  Subscription required  ......  Subscription required

Operational Metrics:

Metrics
Daily milling rate 4.5 kt *
Stripping / waste ratio 5.1 *
Daily mining rate 31.8 kt *
Waste tonnes, LOM 58,406 kt *
Ore tonnes mined, LOM 11,551 kt *
Total tonnes mined, LOM 69,957 kt *
Tonnes milled, LOM 11,551 kt *
Daily processing capacity 4.86 kt *
Tonnes processed, LOM 11,551 kt *
* According to 2016 study.

Reserves at June 30, 2020:

CategoryOreTypeTonnage CommodityGrade
Measured & Indicated Sulphide 4,416 kt Copper 0.62 %
Measured & Indicated Oxide 16,284 kt Copper 0.9 %
Measured & Indicated Sulphide 4,416 kt Gold 0.13 g/t
Measured & Indicated Oxide 16,284 kt Gold 0.37 g/t
Measured & Indicated Sulphide 4,416 kt Silver 2.3 g/t
Measured & Indicated Oxide 16,284 kt Silver 3.88 g/t

Commodity Production Costs:

CommodityUnitsAverage
All-in sustaining costs (AISC) Copper USD 1.16 / lb *†  
C1 cash costs Copper USD 1.08 / lb *†  
Assumed price Copper USD 2.5 / lb *  
Assumed price Silver USD 17.5 / oz *  
Assumed price Gold USD 1,300 / oz *  
* According to 2016 study / presentation.
† Net of By-Product.

Operating Costs:

Units2016
OP mining costs ($/t mined) CAD 2.63 *
OP mining costs ($/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 2016 study.
Subscription required - Subscription is required.

2016 Study Costs and Valuation Metrics :

MetricsUnitsLOM Total
Pre-Production capital costs $M CAD  ......  Subscription required
Sustaining CapEx $M CAD  ......  Subscription required
Total CapEx $M CAD  ......  Subscription required
OP OpEx $M CAD  ......  Subscription required
Processing OpEx $M CAD 268.8
G&A costs $M CAD 74.5
Total OpEx $M CAD  ......  Subscription required
Total Taxes $M CAD  ......  Subscription required
Gross revenue (LOM) $M CAD  ......  Subscription required
Net 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 @ 0% $M CAD  ......  Subscription required
Pre-tax NPV @ 8% $M CAD  ......  Subscription required
After-tax NPV @ 0% $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
Subscription required - Subscription is required.


Proposed Heavy Mobile Equipment as of November 25, 2016:
HME TypeModelSizeQuantity
Dozer ....................... Subscription required 264 kW ....................... Subscription required
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Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Nov 25, 2016
Subscription required - Subscription is required.

Staff:

EmployeesYear
Subscription required 2016

Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
Corporate Presentation 2018
Preliminary Economic Assessment 2016
Press Release 2016
Technical Report 2016
Year-end Mineral Reserves 2016
Preliminary Economic Assessment 2014
Subscription required - Subscription is required.

News:

NewsDate
Granite Creek Copper Files Technical Report for Preliminary Economic Assessment on High-Grade Carmacks Copper-Gold-Silver Project in Yukon, Canada March 7, 2023

Subscription required - Subscription is required.

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