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Canada
Copper Mountain Expansion Project (Copper Mountain)

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 Location:
14 km S from Princeton, British Columbia, Canada

  Project Contacts:
Copper Mountain Rd 20 km south (of Highway #3) PO Box 1400
Princeton
British Columbia, Canada
V0X 1W0
Phone  ...  Subscription required
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
Commodities
  • Copper
  • Silver
  • Gold
Mining Method
  • Truck & Shovel / Loader
Mine Life32 years (as of Jan 1, 2022)
The new life of Copper Mountain mine plan supports an updated mill expansion scenario to 65,000 tpd, producing a total of 4.1 billion pounds of copper equivalent over a mine life of 32 years and inclusion of the NI Pit in the production plan commencing in 2028.


Owners

Source: p. 14
CompanyInterestOwnership
Mitsubishi Materials Corp. 25 % Indirect
Copper Mountain Mining Corp. 75 % Indirect
Copper Mountain Mining Corporation owns 75% and Mitsubishi Materials Corp. owns 25% in the Copper Mountain mine. All claims are controlled by Copper Mountain Mine (BC) Ltd., which is a subsidiary of Copper Mountain Mining Corporation.

Contractors

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Deposit Type

  • Porphyry


Summary:

The Copper Mountain (CM) deposit is an example of an alkalic porphyry deposit, in which copper–gold mineralization is spatially and genetically associated with multiple pulses of volumetrically restricted, and compositionally varied, alkaline porphyry intrusions.

Mineralization
The bulk of the known copper mineralization at Copper Mountain occurs in a northwesterly trending belt of Nicola Group rocks, approximately 5 km long and 2 km wide, that is bounded in the south by the CMS and in the west side by the northernly trending Boundary Fault system. Here copper mineralization occurs as structurally controlled, multidirectional veins and vein stockworks, with peripheral disseminations. Mineralization had been subdivided into four types, as follows: 1) disseminated and stockwork chalcopyrite, bornite, chalcocite, and pyrite in altered Nicola Group volcanic rocks and LHIC rocks; 2) bornite-chalcopyrite associated with pegmatite-like veins (coarse masses of orthoclase, calcite, and biotite; 3) magnetite-(±hematite)-chalcopyrite replacements and/or veins); and 4) chalcopyrite-bearing magnetite breccias (Fahrni et al., 1976; Klue et al., 2020; Preto, 1972; and Stanley et al., 1995). All mineralization types can be found in each pit area, but each pit is unique with respect to the relative quantities and character of mineralization type.

Disseminated and stockwork chalcopyrite–bornite–chalcocite-(±pyrite) mineralization formed much of the core of the depos ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

Copper Mountain Mine (BC) Ltd. (CMML) employs conventional open pit mining methods composed of blasthole drilling, blasting, shovel loading, and rigid-frame, rear-dump truck haulage. Blastholes (270 mm or 311 mm diameter) are drilled on a grid pattern, with blasthole spacing between 7 m and 9 m depending on hole diameter, rock hardness, and whether material is anticipated to be ore or non-economic rock (NER). The blasthole cuttings are mapped and sampled, with samples transported to the on-site analytical laboratory. Samples are pulverized and analyzed for copper. Assays are uploaded to the ore control department and combined with the exploration drill database, which is then interpolated onto bench plans together with blasthole grades and geological information. Grade boundaries are selected manually, and depending on the material, the blasting details are determined. Following blasting, the dig plans are uploaded to the shovels and dispatch system to direct mining and haulage.

Mining at the Copper Mountain Mine (CMM) is by conventional open pit methods, using a 15-m bench height. The major components of this mining method are blasthole drilling, blasting, loading, and hauling. Pit walls are designed to geotechnical specifications and vary in slope angle depending on lithology, alteration, and local ground conditions, with bench face angles of 70 degrees to 73 degrees, and berms of 9 m to 14 m, resulting in inter-ramp pit wall angles that range from 37 degrees to ........


Crushing and Grinding
Source: Subscription required

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Processing

Flow Sheet: Subscription required

Summary:

- subscription is required.


Projected Production:

CommodityProductUnitsAvg. AnnualLOM
Copper Payable metal M lbs 1143,281
Copper Metal in concentrate M lbs 3,402
Copper Concentrate kt 5,512
Silver Payable metal koz  ......  Subscription required  ......  Subscription required
Silver Metal in concentrate koz  ......  Subscription required
Gold Payable metal koz  ......  Subscription required  ......  Subscription required
Gold Metal in concentrate koz  ......  Subscription required
Copper Equivalent Metal in concentrate M lbs  ......  Subscription required
Copper Equivalent Payable metal M lbs  ......  Subscription required

Operational Metrics:

Metrics
Daily milling rate  ......  Subscription required
Stripping / waste ratio  ......  Subscription required
Daily mining rate  ......  Subscription required
Daily milling capacity  ......  Subscription required
Waste tonnes, LOM  ......  Subscription required
Ore tonnes mined, LOM  ......  Subscription required
Total tonnes mined, LOM  ......  Subscription required
Tonnes milled, LOM  ......  Subscription required
Annual milling capacity  ......  Subscription required
Mining scale, tpd  ......  Subscription required
Processing scale, tpd  ......  Subscription required
* According to 2022 study.
Subscription required - Subscription is required.

Reserves at August 1, 2022:
Mineral Reserves are reported at 0.10% and 0.13% Cu cut-off grade for NI pit and CM pit, respectively.

Mineral Resources are reported at Cut-off grades 0.10% Cu.

CategoryTonnage CommodityGradeContained Metal
Proven & Probable 702,444 kt Copper 0.24 % 3,732 M lbs
Proven & Probable 702,444 kt Silver 0.71 g/t 16,010 koz
Proven & Probable 702,444 kt Gold 0.1 g/t 2,313 koz
Measured & Indicated 1,131,991 kt Copper 0.22 % 5,467 M lbs
Measured & Indicated 1,131,991 kt Silver 0.64 g/t 23,376 koz
Measured & Indicated 1,131,991 kt Gold 0.09 g/t 3,366 koz
Inferred 445,641 kt Copper 0.19 % 1,912 M lbs
Inferred 445,641 kt Silver 0.54 g/t 7,674 koz
Inferred 445,641 kt Gold 0.09 g/t 1,278 koz

Commodity Production Costs:

CommodityUnitsAverage
All-in costs Copper USD  ......  Subscription required *†
Assumed price Copper USD  ......  Subscription required&nbs
Assumed price Silver USD  ......  Subscription required&nbs
Assumed price Gold USD  ......  Subscription required&nbs
* According to 2022 study / presentation.
† Net of By-Product.
Subscription required - Subscription is required.

Operating Costs:

Units2022
OP mining costs ($/t mined) USD 1.7 *
OP mining costs ($/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
Expansion CapEx $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 2,698
Refining costs $M USD  ......  Subscription required
Transportation (haulage) costs $M USD 509.5
G&A costs $M USD 358.1
Total OpEx $M USD  ......  Subscription required
Mining Taxes $M USD  ......  Subscription required
Income Taxes $M USD  ......  Subscription required
Royalty payments $M USD  ......  Subscription required
Gross revenue (LOM) $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 @ 8% $M USD  ......  Subscription required
After-tax NPV @ 8% $M USD  ......  Subscription required
Subscription required - Subscription is required.

Water Supply
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Proposed Heavy Mobile Equipment as of August 1, 2022:
HME TypeModelSizeQuantity
Shovel (hydraulic) ....................... Subscription required 42 cu. m ....................... Subscription required
....................... Subscription required ....................... Subscription required ....................... Subscription required ....................... Subscription required
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Aug 1, 2022
....................... Subscription required ....................... Subscription required Subscription required Aug 1, 2022
....................... Subscription required ....................... Subscription required Subscription required Mar 30, 2023
....................... Subscription required ....................... Subscription required Subscription required Mar 30, 2023
....................... Subscription required ....................... Subscription required Subscription required Aug 1, 2022
Subscription required - Subscription is required.


Corporate Filings & Presentations:

DocumentYear
Press Release 2022
Technical Report 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
Subscription required - Subscription is required.

Subscription required - Subscription is required.

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