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Canada
Kutcho Project

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 Location:
100 km SEE from Dease Lake, British Columbia, Canada
  Project Contacts:
1030 West Georgia St. Suite 717
Vancouver
British Columbia, Canada
V6E 2Y3
Phone  ...  Subscription required
EmailEmail
WebsiteWeb
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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 & Underground
Commodities
  • Copper
  • Zinc
  • Silver
  • Gold
Mining Method
  • Truck & Shovel / Loader
  • Longhole open stoping
  • Paste backfill
Mine Life10.75 years (as of Jan 1, 2021)

Owners

Source: p. 50
CompanyInterestOwnership
Kutcho Copper Corp. (operator) 100 % Indirect
Kutcho Copper Corp. was previously named Desert Star Resources Ltd (Desert Star). Desert Star signed a definitive purchase agreement dated 15 June 2017 with Capstone Mining Corp. (Capstone) to acquire the Kutcho Project. Capstone owned 100% of the Project through its wholly owned subsidiary, Kutcho Copper Corp. Desert Star completed the acquisition in December 2017 and changed its name to Kutcho Copper Corp.

Contractors

Subscription required - Subscription is required.

Deposit Type

  • VMS
  • Volcanic hosted

Summary:

Mineralization of the Project is part of the volcanogenic massive sulphide (VMS), or volcanic-hosted massive sulphide (VHMS) spectrum of deposits. The Kutcho deposits are VMS deposits of the Kuroko type or felsic volcaniclastic depending upon the classification scheme. Mineralization is related to felsic volcanism in island arc or back-arc tectonic settings. Perhaps the most significant feature of VMS deposits from an exploration perspective is their tendency to occur in clusters. The Property contains three known Kuroko-type volcanogenic massive sulphide (VMS) deposits. They are aligned in a westerly plunging linear trend and from east to west they are called the Main, Sumac, and Esso deposits.

Mineralization occurs as three deposits along a 3.5 km trend. Sulphide minerals occur in a series of massive sulphide lenses and include pyrite, sphalerite, chalcopyrite, bornite, minor chalcocite, and trace tennantite, galena, digenite, djurleite, and idaite. Gangue minerals include quartz, dolomite, ankerite, sericite, gypsum, and anhydrite.

The three deposits form a westerly plunging linear trend, termed the Main, Sumac, and Esso deposits from east to west. The Main deposit comes to surface at its eastern end, whereas the Esso deposit occurs at depths about 400 m below surface,

Main Deposit
The Main deposit has an elliptical, lenticular shape with approximate dimensions of 1,600 m long, 500 m wide (down-dip), and approaching 40 m in true thick ........

Mining Methods

  • Truck & Shovel / Loader
  • Longhole open stoping
  • Paste backfill

Summary:

Open pit mining is expected to be by conventional front-end loader and truck whereas underground mining will be done using longitudinal long-hole open stoping (LLHOS) methods.

Open pit mining of the Main deposit is expected to commence during the construction period and ramp up over a two-year period before reaching an estimated average steady production rate of 1.8 Mtpa of ore at the end of Year 1. The open pit has an estimated eight-year life with a total of 14.5 Mt of ore mined at an average strip ratio of 5.6:1. The open pit is mined in two phases, Phase 1 and Phase 2. Direct processing of higher-grade ore and stockpiling of lower-grade ore (for processing at the end of the mine life) is a significant component of the mine plan. Phase 1 waste is used in construction of the TMF embankment and excess is placed into a waste rock dump (WRD) alongside the pit. The WRD will separately store PAG (Potentially acid generating) and nPAG (not potentially acid generating) material. Once Phase 1 of the open pit mine is complete, Phase 2 PAG waste is backfilled directly into the void and excess is placed on WRD (mostly nPAG). A significant portion of the WRD (all the PAG rock component) rehandled into the Phase 2 void at the end of open pit mining operations. Including pre-production and ore/waste rehandling periods, the open pit life is 12.5 years.

The open pit mining equipment is planned to move up to 40,000tpd. The truck fleet comprises up to eight 90-tonne cla ........

Crushing and Grinding
Source: Subscription required

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Processing

Flow Sheet: Subscription required

Summary:

- subscription is required.

Projected Production:

CommodityProductUnitsLOM
Copper Payable metal M lbs 504
Copper Metal in concentrate M lbs 533
Copper Concentrate kt 936
Zinc Concentrate kt  ......  Subscription required
Zinc Payable metal M lbs  ......  Subscription required
Zinc Metal in concentrate M lbs  ......  Subscription required
Silver Payable metal M oz  ......  Subscription required
Silver Metal in concentrate M oz  ......  Subscription required
Gold Payable metal koz  ......  Subscription required
Gold Metal in concentrate koz  ......  Subscription required

Operational Metrics:

Metrics
Stripping / waste ratio  ......  Subscription required
Daily ore mining rate  ......  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 rate  ......  Subscription required
Annual ore mining rate  ......  Subscription required
* According to 2021 study.
Subscription required - Subscription is required.

Reserves at July 30, 2021:
The projected cut-off grade for Mineral Resources considered amenable to open pit extraction methods at the Main deposit is determined to be 0.45% CuEqR. For Mineral Resources considered amenable to underground extraction methods, the cut-off grade at the Main and Sumac deposits is 1.05% CuEqR and at Esso it is 0.95% CuEqR.

Underground Mineral Reserve cut-off was C$129.45/t NSR. Open pit Mineral Reserve cut-off was C$38.40/t NSR for oxide ore and C$55.00/t NSR for sulphide ore. The sulphide grade is an operational cut-off and is above the breakeven cut-off of C$38.40/t NSR.

CategoryTonnage CommodityGradeContained Metal
Proven & Probable 17.34 kt Copper 1.58 % 603.2 M lbs
Proven & Probable 17.34 kt Zinc 2.31 % 882.3 M lbs
Proven & Probable 17.34 kt Silver 27.9 g/t 15.5 M oz
Proven & Probable 17.34 kt Gold 0.39 g/t 214.7 koz
Measured 7,213 kt Copper 1.64 %
Measured 7,213 kt Zinc 2.35 %
Measured 7,213 kt Silver 24.7 g/t
Measured 7,213 kt Gold 0.36 g/t
Measured 7,213 kt Copper Equivalent 2.31 %
Indicated 15,590 kt Copper 1.46 %
Indicated 15,590 kt Zinc 2.11 %
Indicated 15,590 kt Silver 29.6 g/t
Indicated 15,590 kt Gold 0.41 g/t
Indicated 15,590 kt Copper Equivalent 2.23 %
Measured & Indicated 22,802 kt Copper 1.52 %
Measured & Indicated 22,802 kt Zinc 2.18 %
Measured & Indicated 22,802 kt Silver 28.1 g/t
Measured & Indicated 22,802 kt Gold 0.39 g/t
Measured & Indicated 22,802 kt Copper Equivalent 2.26 %
Inferred 12,886 kt Copper 1.1 %
Inferred 12,886 kt Zinc 1.58 %
Inferred 12,886 kt Silver 20 g/t
Inferred 12,886 kt Gold 0.25 g/t
Inferred 12,886 kt Copper Equivalent 1.62 %

Commodity Production Costs:

CommodityUnitsAverage
Total cash costs Copper Equivalent USD  ......  Subscription required&nbs
All-in sustaining costs (AISC) Copper Equivalent USD  ......  Subscription required&nbs
Assumed price Zinc USD  ......  Subscription required&nbs
Assumed price Copper USD  ......  Subscription required&nbs
Assumed price Silver USD  ......  Subscription required&nbs
Assumed price Gold USD  ......  Subscription required&nbs
* According to 2021 study / presentation.
Subscription required - Subscription is required.

Operating Costs:

Units2021
OP mining costs ($/t mined) CAD 4.11 *
OP mining costs ($/t milled) CAD  ......  Subscription required
UG 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 2021 study.
Subscription required - Subscription is required.

2021 Study Costs and Valuation Metrics :

MetricsUnitsLOM Total
Initial CapEx $M CAD  ......  Subscription required
Sustaining CapEx $M CAD  ......  Subscription required
Total CapEx $M CAD  ......  Subscription required
OP OpEx $M CAD  ......  Subscription required
UG OpEx $M CAD  ......  Subscription required
Processing OpEx $M CAD 482.6
G&A costs $M CAD 150.3
Total OpEx $M CAD  ......  Subscription required
Total Taxes $M CAD  ......  Subscription required
Royalty payments $M CAD  ......  Subscription required
Net revenue (LOM) $M CAD  ......  Subscription required
Net Operating Income (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 @ 7% $M CAD  ......  Subscription required
After-tax NPV @ 7% $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 8, 2021:
HME TypeSizeQuantityLeased or
Contractor
Bolter 100 HP ....................... Subscription required Leased
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Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Nov 7, 2022
....................... Subscription required ....................... Subscription required Subscription required Nov 8, 2021
....................... Subscription required ....................... Subscription required Subscription required Nov 8, 2021
....................... Subscription required ....................... Subscription required Subscription required Nov 7, 2022
Subscription required - Subscription is required.

Staff:

Total WorkforceYear
Subscription required 2021

Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2019
Pre-Feasibility Study Report 2017
Press Release 2017
Corporate Presentation 2016
Pre-Feasibility Study Report 2011
Subscription required - Subscription is required.

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