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Canada
Red Chris Mine

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 Location:
17 km SE from Iskut, British Columbia, Canada
  Regional Office:
MNP Tower Suite 1180 1021 West Hastings Street
Vancouver
British Columbia, Canada
V7X1L4
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Fleet
  • Personnel
  • Filings & News
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Overview

StageProduction
Mine TypeOpen Pit
Commodities
  • Copper
  • Gold
  • Silver
Mining Method
  • Truck & Shovel / Loader
Production Start...
Mine Life37 years (as of Jan 1, 2022)
In October 2021, the Newcrest Board endorsed the Red Chris Block Cave PFS and approved its progression to the Feasibility Stage.

The Study confirms Newcrest’s original investment thesis of unlocking the underground portion of this Tier 1 deposit by leveraging Newcrest’s industry-leading block caving expertise and with the intention that the asset would become a significant component of Newcrest’s portfolio for the medium to long term.

The Feasibility Study is expected to be completed in the second half of FY23. Red Chris Block Cave first ore is expected in the second half of FY26. Red Chris first production of Block Cave gold and copper is expected in FY27.
Latest NewsPerenti secures a contract extension at Red Chris in Canada     April 17, 2023

Owners

Source: p. 22
CompanyInterestOwnershipInvestor's Info
Imperial Metals Corp. 30 % Indirect
Newcrest Mining Ltd. 70 % Indirect
Newcrest Red Chris Mining Limited (operator) 100 % Direct
Newcrest has a 70% interest in and operatorship of the Red Chris mine and surrounding tenements in British Columbia, Canada, in a joint venture with Imperial Metals Corporation (30%).

Contractors

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Deposit Type

  • Porphyry
  • Vein / narrow vein

Summary:

Mineralization
The Red Chris deposit is about 3.4 km in strike length, 0.3 km in width and over 1.3 km in vertical extent. There are two main zones, East and Main. The Main zone is 1,200 m in strike length, 300 m in width and has been drill tested to 1,300 m depth. The East zone is 1,200 m in strike length, 300 m in width and has been drill tested to 1,400 m depth.

The zone of >0.2% Cu%, is >3 km long, oriented west–southwest–east–northeast and can reach 650 m in width. Quartz–magnetite stockworks are overprinted by higher gold and copper grades. The highest copper–gold grades occur in and around the P2 porphyries and associated igneous breccias.

Mineralisation consists of thin wavy or thicker planar quartz veins containing chalcopyrite, bornite and magnetite; these minerals are also disseminated outside the veins. In the upper part of the deposit, the bornite-rich mineralisation was overprinted by sericite and clay alteration and associated sulphidation. Gold occurs as microscopic inclusions in the copper sulphides, and occasionally as free grains in high-grade zones.

Molybdenite occurs locally in quartz veins, especially deeper and outside the high-grade core.

DEPOSIT TYPES
Overview
Red Chris is considered to be an example of a porphyry copper deposit with elevated gold values, characterized by the composition of its host rocks, its alteration, and its copper–gold signature, with only minor molybdenum. It is cla ........

Mining Methods

  • Truck & Shovel / Loader

Summary:

The Red Chris Operations are a copper–gold open pit mining operation located in northwest British Columbia, Canada.

Open pit operations are conducted using conventional methods and a conventional truck and shovel fleet.

Geotechnical Considerations
The pit design parameters for Red Chris are designed to control bench scale stability and rockfall issues more than the global stability of the pit walls. In 2020, the geotechnical parameters were updated based on geotechnical and operating history at the Project.

Golder defined six geotechnical domains within the open pit. Recommended inter-ramp angles ranged from 41.9–52.8º. These were adjusted to take the pit ramps into account, leading to designed slope angles from 34–46º.

The greatest area of concern for stability is on the southern wall and in particular the Bowser Lake Group sediments. The results of the overall slope stability analyses indicated that the proposed south wall design is expected to exhibit adequate factors of safety with respect to overall slope circular type failure that involves failure from the crest of the scope through the South Boundary Domain and South Domain rock mass.

Two areas that show a factor of safety risk are associated with the Bowser Lake Group sediments near the pit crest, and are only problematic with elevated pore water pressures.

The benches are expected to be relatively free draining, and significant pore pressures a ........

Crushing and Grinding
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Processing

Flow Sheet: Subscription required

Summary:

- subscription is required.

Production:
FY2020 production outcomes are reported from date of acquisition (15 August 2019) to 30 June 2020.

CommodityUnits2023202220212020201920182017
Copper M lbs  ......  Subscription required ^  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required6375
Gold koz  ......  Subscription required ^  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Silver koz  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
All production numbers are expressed as metal in concentrate. ^ Guidance / Forecast.
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Operational Metrics:

Metrics202220212020201920182017
Tonnes milled  ......  Subscription required  ......  Subscription required  ......  Subscription required10,430,762 t10,668,313 t10,378,181 t
Total tonnes mined  ......  Subscription required  ......  Subscription required  ......  Subscription required
Ore tonnes mined  ......  Subscription required  ......  Subscription required  ......  Subscription required
Annual processing capacity  ......  Subscription required  ......  Subscription required  ......  Subscription required
Daily milling rate  ......  Subscription required  ......  Subscription required  ......  Subscription required28,577 t29,228 t28,433 t
Daily mining rate  ......  Subscription required  ......  Subscription required  ......  Subscription required130,000 t130,000 t
Daily milling capacity  ......  Subscription required  ......  Subscription required  ......  Subscription required30,000 t30,000 t
Subscription required - Subscription is required.

Reserves at June 30, 2022:
Cut-Off Assumptions:
Red Chris Open Pit and Stockpiles - Mineral Resource NSR of C$16.10/t milled; Ore Reserve NSR of C$20.33/t milled.

Red Chris Underground: Mineral Resource NSR of C$21.00/t milled; Ore Reserve variable NSR of C$22.00/t – 22.80/t milled.

CategoryOreTypeTonnage CommodityGradeContained Metal
Probable Stockpiles 9.5 M dmt Copper 0.24 % 0.023 Mt
Probable In-Situ (OP) 53 M dmt Copper 0.45 % 0.24 Mt
Probable In-Situ (UG) 410 M dmt Copper 0.45 % 1.8 Mt
Probable Stockpiles 9.5 M dmt Gold 0.15 g/t 0.047 M oz
Probable In-Situ (OP) 53 M dmt Gold 0.39 g/t 0.68 M oz
Probable In-Situ (UG) 410 M dmt Gold 0.55 g/t 7.2 M oz
Measured & Indicated Stockpiles 9.5 M dmt Copper 0.24 % 0.023 Mt
Measured & Indicated In-Situ (OP) 240 M dmt Copper 0.36 % 0.88 Mt
Measured & Indicated In-Situ (UG) 670 M dmt Copper 0.4 % 2.7 Mt
Measured & Indicated Stockpiles 9.5 M dmt Gold 0.15 g/t 0.047 M oz
Measured & Indicated In-Situ (OP) 240 M dmt Gold 0.3 g/t 2.4 M oz
Measured & Indicated In-Situ (UG) 670 M dmt Gold 0.46 g/t 10 M oz
Inferred In-Situ (OP) 8.5 M dmt Copper 0.3 % 0.026 Mt
Inferred In-Situ (UG) 180 M dmt Copper 0.3 % 0.54 Mt
Inferred In-Situ (OP) 8.5 M dmt Gold 0.25 g/t 0.069 M oz
Inferred In-Situ (UG) 180 M dmt Gold 0.32 g/t 1.8 M oz

Commodity Production Costs:

CommodityUnits202220212020201920182017
Credits (by-product) Gold USD  ......  Subscription required  ......  Subscription required  ......  Subscription required
Cash costs Copper USD  ......  Subscription required† 2.34 / lb†   1.93 / lb†  
Total cash costs Gold USD  ......  Subscription required†  ......  Subscription required†  ......  Subscription required†
All-in sustaining costs (sold) Gold USD  ......  Subscription required†  ......  Subscription required†  ......  Subscription required†
† Net of By-Product.
Subscription required - Subscription is required.

Financials:

Units2023202220212020201820172016
Capital expenditures (planned) M USD  ......  Subscription required
Sustaining costs M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required
Capital expenditures M  ......  Subscription required  ......  Subscription required  ......  Subscription required 62.9  CAD 57.8  CAD 123.1  CAD
Revenue M  ......  Subscription required  ......  Subscription required  ......  Subscription required 255.7  CAD 289.1  CAD 295.3  CAD
After-tax Income M -89.7  CAD 0.4  CAD -8.7  CAD
EBIT M  ......  Subscription required  ......  Subscription required  ......  Subscription required
EBITDA M  ......  Subscription required  ......  Subscription required  ......  Subscription required
Operating Cash Flow M  ......  Subscription required  ......  Subscription required  ......  Subscription required
Subscription required - Subscription is required

Pipelines
TypeMaterialDiameterLengthDescription

Heavy Mobile Equipment as of June 30, 2021:
HME TypeModelSizeQuantityStatus
Backhoe ....................... Subscription required Proposed
....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed
....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed
Dozer ....................... Subscription required ....................... Subscription required Existing
Dozer (crawler) ....................... Subscription required ....................... Subscription required Existing
Dozer (rubber tire) ....................... Subscription required ....................... Subscription required Existing
Drill ....................... Subscription required ....................... Subscription required Existing
Drill ....................... Subscription required ....................... Subscription required Existing
Drill ....................... Subscription required ....................... Subscription required Existing
....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed
Excavator ....................... Subscription required ....................... Subscription required Existing
Excavator ....................... Subscription required ....................... Subscription required Existing
Excavator ....................... Subscription required ....................... Subscription required Existing
Excavator ....................... Subscription required ....................... Subscription required Existing
Grader ....................... Subscription required ....................... Subscription required Existing
Grader ....................... Subscription required ....................... Subscription required Existing
Grader ....................... Subscription required ....................... Subscription required Existing
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Loader ....................... Subscription required ....................... Subscription required Existing
Loader ....................... Subscription required ....................... Subscription required Existing
Loader ....................... Subscription required ....................... Subscription required Existing
Loader ....................... Subscription required ....................... Subscription required Existing
Loader ....................... Subscription required ....................... Subscription required Existing
Loader ....................... Subscription required ....................... Subscription required Existing
Loader ....................... Subscription required ....................... Subscription required Existing
Loader ....................... Subscription required ....................... Subscription required Existing
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Shovel ....................... Subscription required ....................... Subscription required Existing
Shovel ....................... Subscription required ....................... Subscription required Existing
Shovel ....................... Subscription required ....................... Subscription required Existing
Truck (dump) ....................... Subscription required ....................... Subscription required Existing
Truck (haul) ....................... Subscription required ....................... Subscription required Existing
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Truck (water) ....................... Subscription required ....................... Subscription required Existing
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Oct 26, 2022
....................... Subscription required ....................... Subscription required Subscription required Oct 26, 2022
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....................... Subscription required ....................... Subscription required Subscription required Oct 26, 2022
....................... Subscription required ....................... Subscription required Subscription required Nov 22, 2022
Subscription required - Subscription is required.

Staff:

EmployeesContractorsTotal WorkforceYear
Subscription required Subscription required Subscription required 2022
Subscription required Subscription required Subscription required 2021
Subscription required Subscription required Subscription required 2020
Subscription required 2018
Subscription required 2017

Corporate Filings & Presentations:

DocumentYear
Annual Report 2022
Financial Review 2022
Quarterly Report 2022
Sustainability Report 2022
Year-end Mineral Reserves 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
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................................... Subscription required 2020
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................................... Subscription required 2019
................................... Subscription required 2019
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................................... Subscription required 2019
................................... Subscription required 2019
Annual Information Form 2018
Annual Report 2018
Annual Information Form 2017
Annual Report 2017
Press Release 2017
Annual Information Form 2016
Annual Report 2016
Annual Information Form 2015
Annual Report 2015
Press Release 2015
Technical Report 2015
Year-end Mineral Reserves 2015
Annual Information Form 2014
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News:

NewsDate
Perenti secures a contract extension at Red Chris in Canada April 17, 2023

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