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Canada
Ajax Project

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 Location:
9 km SW from Kamloops, British Columbia, Canada

  Project Contacts:
#201-242 Victoria Street
Kamloops
British Columbia, Canada
V2C 2A2
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Overview

StatusInactive / Suspended
Mine TypeOpen Pit
Commodities
  • Copper
  • Gold
  • Silver
Mining Method
  • Truck & Shovel / Loader
Mine Life19 years (as of Jan 1, 2017)
In June 2018, the Government of Canada, through the Governor-in Council (Cabinet) issued a negative decision regarding the Ajax project as the project is likely to cause significant adverse environmental effects. The decisions were made through the environmental impact assessment process, and reflect the substantial engagement of provincial and federal governmental agencies, First Nations and a broad spectrum of stakeholders, including thousands of representatives of local communities.

As a result of the decision not to grant an EA Certificate, in 2021 work continued which was mainly related to monitoring and securing of the project terrain in accordance with law in force.


Owners

Source: p. 15
CompanyInterestOwnership
Abacus Mining & Exploration Corp. 20 % Indirect
KGHM Polska Miedz S.A. 80 % Indirect
KGHM INTERNATIONAL LTD. 80%; Abacus Mining and Exploration Inc. 20%

Contractors

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Deposit Type

  • Porphyry
  • Vein / narrow vein


Summary:

Ajax is an alkalic copper-gold porphyry deposit hosted within the Iron Mask Batholith. Mineralization extends to depths exceeding 700 m, widths exceeding 1,000 m, and has a strike length that exceeds 2,000 m. The mineralization in the project area is associated with structural corridors of highly fractured and albite-altered sections of Sugarloaf Diorite (SLD) and Sugarloaf Volcanic Hybrid (SVHYB) units.

The Iron Mask Batholith is host to more than 20 known mineral deposits and occurrences. Copper-gold mineralization within the Iron Mask Batholith is associated with the younger intrusive phases of CHMZ and SLD. Mineralization is generally localized along major fault zones, at the contacts with the older PHD and IMH units and associated with albite and potassium feldspar alteration.

The mineralization in the project area is associated with structural corridors of highly fractured sections of SLD and SVHYB phases of the Iron Mask Batholith. Chalcopyrite is the dominant copper mineral and occurs as veins, veinlets, fracture fillings, disseminations and isolated blebs in the host rock. Concentrations of chalcopyrite rarely exceed 5%. Accessory sulphide minerals include pyrite and molybdenite.

Copper mineralization in the Ajax area consists predominantly of chalcopyrite and is hosted primarily in the SLD and SVHYB units. This mineralization appears to have greater concentration within the Sugarloaf units near the contact with IMH. Some mineraliz ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

The proposed mine plan envisages a conventional open pit operation producing 65,000 t/d of ore to the processing facility. The pit has been designed to be developed in seven phases. The ultimate pit will be approximately 2.7 km in an east-west direction and approximately 1.3 km in a north-south direction.

Two stockpiles will be utilized to maximize the discounted cash flow of the project. A mid-grade stockpile and a low-grade stockpile will be constructed to store lower grade ore and will be reclaimed and processed later in the mine life.

A conventional truck and shovel fleet will be used to mine 15 m benches. Drilling and blasting will be required. Horizontal drains are proposed as the primary means to depressurize the pit slope. In-pit water will be removed by way of ditches, pipes, sumps, pumps, and booster pumps.

Four mine rock storage facilities (MRSFs) for waste rock are planned for the Ajax Site. The east mine rock storage facility (EMRSF) will be constructed east of the ultimate pit. Similarly the south mine rock storage facility (SMRSF), will be located south of the ultimate pit. The tailings embankment will be constructed in two parts using run-of-mine rock, the north and east sections. A north extension and buttress for the main tailings embankment called the west mine rock storage facility (WMRSF) will be constructed to increase storage capacity, reduce haul costs, and to increase the stability of the TSF Embankment. A backfill s ........


Crushing and Grinding
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Processing

Flow Sheet: Subscription required

Summary:

- subscription is required.


Projected Production:

CommodityProductUnitsAvg. AnnualLOM
Copper Payable metal M lbs 1172,215
Gold Payable metal koz  ......  Subscription required  ......  Subscription required
Copper Metal in concentrate M lbs 2,313
Gold Metal in concentrate koz  ......  Subscription required

Operational Metrics:

Metrics
Stripping / waste ratio 2.65 *
Daily milling capacity 65 kt *
Daily ore mining rate 65,000 t *
Waste tonnes, LOM 1,130,200 kt *
Ore tonnes mined, LOM 426,300 kt *
Tonnes milled, LOM 426,293 kt *
Annual milling capacity 23,725 kt *
Annual production capacity 250 kt of copper concentrate *
* According to 2016 study.

Reserves at February 19, 2016:
Mineral resources and Mineral Reserve are estimated at an NSR cut-off of $7.10.

CategoryTonnage CommodityGradeContained Metal
Proven 130 Mt Copper 0.3 % 875 M lbs
Proven 130 Mt Gold 0.19 g/t 791 koz
Proven 130 Mt Silver 0.4 g/t 1,677 koz
Probable 296 Mt Copper 0.28 % 1,818 M lbs
Probable 296 Mt Gold 0.19 g/t 1,813 koz
Probable 296 Mt Silver 0.38 g/t 3,615 koz
Proven & Probable 426 Mt Copper 0.29 % 2,693 M lbs
Proven & Probable 426 Mt Gold 0.19 g/t 2,605 koz
Proven & Probable 426 Mt Silver 0.39 g/t 5,292 koz
Measured 148 Mt Copper 0.28 %
Measured 148 Mt Gold 0.18 g/t
Measured 148 Mt Silver 0.37 g/t
Indicated 420 Mt Copper 0.25 %
Indicated 420 Mt Gold 0.18 g/t
Indicated 420 Mt Silver 0.35 g/t
Measured & Indicated 568 Mt Copper 0.26 %
Measured & Indicated 568 Mt Gold 0.18 g/t
Measured & Indicated 568 Mt Silver 0.35 g/t
Inferred 29 Mt Copper 0.13 %
Inferred 29 Mt Gold 0.09 g/t
Inferred 29 Mt Silver 0.17 g/t

Commodity Production Costs:

CommodityUnitsAverage
Assumed price Copper USD 3.21 / lb *  
Assumed price Silver USD 16 / oz *  
Assumed price Gold USD 1,200 / oz *  
* According to 2016 study / presentation.

Operating Costs:

Units2016
OP mining costs ($/t mined) USD 1.5 *
Processing costs ($/t milled) USD  ......  Subscription required
G&A ($/t milled) USD  ......  Subscription required
* According to 2016 study.
Subscription required - Subscription is required.

Financials:

Units20172016
Capital expenditures M USD 3   8  

2016 Study Costs and Valuation Metrics :

MetricsUnitsLOM Total
Initial 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 1,806
G&A costs $M USD 460
Total OpEx $M USD  ......  Subscription required
Income Taxes $M USD  ......  Subscription required
Gross revenue (LOM) $M USD  ......  Subscription required
EBITDA (LOM) $M USD  ......  Subscription required
Pre-tax NPV @ 8% $M USD  ......  Subscription required
After-tax NPV @ 8% $M USD  ......  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 February 19, 2016:
HME TypeSizeQuantityLeased or
Contractor
Dozer (crawler) ....................... Subscription required Leased
....................... Subscription required ....................... Subscription required ....................... Subscription required Leased
....................... Subscription required ....................... Subscription required ....................... Subscription required Leased
....................... Subscription required ....................... Subscription required ....................... Subscription required Leased
....................... Subscription required ....................... Subscription required ....................... Subscription required Leased
....................... Subscription required ....................... Subscription required ....................... Subscription required Leased
....................... Subscription required ....................... Subscription required ....................... Subscription required Leased
....................... Subscription required ....................... Subscription required ....................... Subscription required Leased
....................... Subscription required ....................... Subscription required ....................... Subscription required Leased
....................... Subscription required ....................... Subscription required ....................... Subscription required Leased
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Jul 28, 2022
....................... Subscription required ....................... Subscription required Subscription required Jul 28, 2022
....................... Subscription required ....................... Subscription required Subscription required Jul 28, 2022
Subscription required - Subscription is required.

Staff:

Total WorkforceYear
Subscription required 2016

Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2019
Annual Report 2018
Corporate Presentation 2018
Annual Report 2017
Feasibility Study Report 2016
Annual Report 2015
Feasibility Study Report 2012
Subscription required - Subscription is required.

Subscription required - Subscription is required.

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