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Canada
Coffee Project

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 Location:
130 km S from Dawson, Yukon, Canada

  Project Contacts:
3260-666 Burrard Street
Vancouver
British Columbia, Canada
V6C 2X8
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WebsiteWeb
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  • Overview
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  • Geology
  • Mining
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  • Production
  • Reserves
  • Costs & Financials
  • Fleet
  • Personnel
  • Filings & News

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Overview

StagePermitting
Mine TypeOpen Pit
Commodities
  • Gold
Mining Method
  • Truck & Shovel / Loader
Mine Life10 years (as of Jan 1, 2016)
The Coffee Mine Project is a proposed open-pit and heap leach gold development project located in west-central Yukon.

Newmont continues to work cooperatively with the Yukon Government, Canada and First Nations to progress development of the Coffee Mine Project.

On March 17, 2022, the Governments of Yukon and Canada, after consultation with Yukon First Nations, jointly accepted the recommendation the Coffee Gold Project be allowed to proceed by the Yukon Environmental Socioeconomic Assessment Board’s (YESAB).


Owners

Source: p. 8
CompanyInterestOwnership
Newmont Corp. 100 % Indirect
Kaminak Gold Corp.'s key asset is the 100%-owned Coffee gold project.

On July 19, 2016, Goldcorp Inc. Kaminak Gold Corp. was acquired by Goldcorp Inc.

On April 18, 2019, Newmont completed the business acquisition of Goldcorp, Inc.

Contractors

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Deposit Type

  • Orogenic
  • Breccia pipe / Stockwork
  • Vein / narrow vein
  • Hydrothermal


Summary:

Coffee is interpreted to represent a shallow-level (epizonal) structurally controlled orogenic gold deposit (Buitenhuis et al., 2015; Allan et al., 2013). Mineralization textures are described below for the four deposits which comprise the Coffee resources and reserves, namely Supremo, Latte, Double Double, and Kona.

Supremo.
Narrow gold-bearing brittle fault structures with gold hosted in intense fracture zones, immature clast supported breccia and in zones of most intense deformation matrixsupported breccia. Mineralization commonly on the margin of and within dacite dykes which intruded along the fracture zones premineralization. Gold mineralization and accompanying quartz-sericite-pyrite alteration associated with later reactivation of structures. Complete oxidation up to 250m below surface.

Latte.
Gold is hosted in zones of brecciation and strong fracturing as well as areas with pervasive sericite alteration and strongly disseminated sulphides. Some high-grade zones associated with quartz vein breccias. Dolomite-illite/sericite-arsenian pyrite sulphidizes foliaform biotite laths. Potential remobilization of gold to other structures. Complete oxidation up to 75m below surface.

Double Double.
Narrow gold-bearing brittle structures hosted in matrix-supported breccia including dacite porphyry fragment breccia. Anastomosing quartz vein networks and microbreccia associated with high-grade. Local intense silicification and stron ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

The Coffee Gold Project comprises the Latte, Double Double, Supremo and Kona pits which are planned to be extracted by open pit shovel and truck mining methods.

Mining of the deposit is planned to produce a total of 46.4 Mt of heap leach feed and 265 Mt of waste (at a 5.7:1 overall strip ratio) over a nine and a half year mine production life (including one year of preproduction). The current life of mine (LOM) plan focuses on achieving consistent heap leach production rates, and mining of higher value material early in the production schedule, as well as balancing grade and strip ratios.

Given that the crusher and heap leach facility will only be operated between April and December of each year, a ROM stockpile will be used when necessary for stockpiling of ore from the open pit.

The open pit mining is envisioned to be undertaken by Kaminak, the project owner.

Mining will begin at the Coffee Gold Project in Year -1 at Latte and Double Double pits to provide waste rock for construction and enable the stockpiling of high-grade ore prior to the start of leach processing. Leachate processing will commence in Q3 Year -1 and ramps up rapidly in Q4 of Year -1. Open pit mining will then transition sequentially to the Kona and Supremo pits. Open pit mining and loading of the heap leach facility will be completed in the first half of Year 9.

Open pit mining operations will use a fleet comprising 16 m3 shovels, 12 m3 front-end loa ........


Crushing and Grinding
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Processing

Flow Sheet: Subscription required

Summary:

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Projected Production:

CommodityUnitsAvg. AnnualLOM
Gold koz 2021,858

Operational Metrics:

Metrics
Stripping / waste ratio 5.72 *
Waste tonnes, LOM 265,361 kt *
Ore tonnes mined, LOM 46,356 kt *
Total tonnes mined, LOM 311,717 kt *
Tonnes milled, LOM 46,356 kt *
* According to 2016 study.

Reserves at December 31, 2022:

CategoryTonnage CommodityGradeContained Metal
Indicated 53,900 kt Gold 1.23 g/t 2,140 koz
Measured & Indicated 53,900 kt Gold 1.23 g/t 2,140 koz
Inferred 7,200 kt Gold 1.01 g/t 230 koz

Commodity Production Costs:

CommodityUnitsAverage
Cash costs Gold USD 482 / oz *  
All-in sustaining costs (AISC) Gold USD 550 / oz *  
Pre-tax break-even price Gold USD 707 / oz *  
Assumed price Gold USD 1,150 / oz *  
* According to 2016 study / presentation.

Operating Costs:

Units2016
OP mining costs ($/t milled) CAD 15.3 *
Processing costs ($/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
Initial CapEx $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 230.3
Site services costs $M CAD 45.2
G&A costs $M CAD 134.2
Total OpEx $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 @ 5% $M CAD  ......  Subscription required
Pre-tax NPV @ 8% $M CAD  ......  Subscription required
After-tax NPV @ 0% $M CAD  ......  Subscription required
After-tax NPV @ 5% $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.

Pipelines and Water Supply
Source: Subscription required

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Proposed Heavy Mobile Equipment as of January 6, 2016:
HME TypeModelSizeQuantity
Dozer (crawler) ....................... Subscription required ....................... Subscription required
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Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Feb 20, 2023
....................... Subscription required ....................... Subscription required Subscription required Feb 20, 2023
Subscription required - Subscription is required.

Staff:

Total WorkforceYear
Subscription required 2016

Corporate Filings & Presentations:

DocumentYear
Corporate Presentation 2022
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
Other 2018
Year-end Mineral Reserves 2018
Annual Information Form 2017
Feasibility Study Report 2016
Subscription required - Subscription is required.

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