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Canada
Schaft Creek Project

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 Location:
132 km SW from Dease Lake, British Columbia, Canada

  Project Contacts:
Suite 3300, Bentall 5 550 Burrard Street
Vancouver
British Columbia, Canada
V6C 0B3
Phone  ...  Subscription required
Fax604-699-4750
WebsiteWeb
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Fleet
  • Filings & News

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Overview

StageFeasibility
Mine TypeOpen Pit
Commodities
  • Copper
  • Molybdenum
  • Gold
  • Silver
Mining Method
  • Truck & Shovel / Loader
Processing
  • Flotation
  • Concentrate leach
Mine Life21 years (as of Jan 1, 2013)


Owners

Source:
CompanyInterestOwnership
Copper Fox Metals Inc. 25 % Indirect
Teck Resources Ltd. 75 % Direct
Copper Fox is a 25% partner in the Schaft Creek Joint Venture (the "Joint Venture") with Teck Resources Limited ("Teck"). Teck is the operator of the Joint Venture.

Deposit Type

  • Porphyry


Summary:

Schaft Creek is described as a calc-alkalic copper-molybdenum-gold-silver porphyry deposit.

The Schaft Creek deposit is hosted by Stuhini Group (Stikine Terrane) basaltic to andesitic volcanic rocks of the Mess Lake facies. These volcanics are intruded by dacite to granodiorite dikes, whose origin is interpreted to be the nearby Hickman batholith. The Mess Lake facies is a vent-proximal, submarine to sub-aerial volcanic assemblage, and the whole volcanic sequence is estimated to be upwards of 800 m thick. There is an abundance of overlapping alteration zones, as well as a complex series of predominantly brittle structures.

The Schaft Creek deposit is considered a calc alkalic copper-molybdenum porphyry system related to an elongate, high-energy, structurally controlled breccia system. The deposit has historically been divided into three zones; the Liard (Main) Zone, the Paramount Zone, and the West Breccia Zone. For estimation purposes, and due to the geometry of the mineralization, the West Breccia Zone has been included within the Paramount Zone. The Liard Zone is related to the intrusion of feldspar quartzporphyry dikes, while the Paramount Zone is closely related to a north-south trending breccia zone.

Mineralization in the Liard Zone consists of irregular sulphide stockworks (chalcopyrite, bornite, molybdenite, and lesser pyrite) forming a tabular zone overlapping all rock types, though preferentially hosted in coarse fragmental volcanic rocks. In the Paramount Zone, mineralization consists of fine veinlets and disseminated patches of sulphides (chalcopyrite, bornite, and molybdenite) hosted predominantly in the altered fine-grained groundmass within the breccia system.


Mining Methods

  • Truck & Shovel / Loader


Summary:

The Project will be a conventional open pit truck-shovel operation, using large-scale equipment to gain economies of scale. Ore and waste will be drilled by diesel and electric powered rotary drills and blasted using bulk explosives. Mill feed and waste will be loaded into 227 t and 354 t mine trucks by 80 t electric cable shovels, 50 t diesel hydraulic shovels and a 35 t wheel loader. Waste will be placed in waste storage facilities adjacent to the pit.

Ore will be hauled to the primary crushers located near the pit rim, and then conveyed to the mill site in the adjacent valley. Low-grade ROM ore will be stockpiled south of the open pit and mid-grade ROM ore will be stockpiled within the west dump footprint. Bulldozers will cut roads into competent rock from the top down to provide access for mining equipment to the upper benches. The bulldozer development will be conducted in two stages: the south phase during the pre-development years and the north phase during the first three years of production.


Crushing and Grinding


Processing

  • Flotation
  • Concentrate leach

Source: Subscription required

Summary:

A conventional flotation process is proposed for the Project. The processing plant will consist of:
• primary crushing at the mine site; the crushed ore will be delivered to the plant site via conveyors, including one overland conveyor; the process plant will be located approximately 8 km northeast of the pit
• a crushed ore stockpile
• a main processing plant, including:
- two primary grinding circuits, consisting of SAG mills, ball mills and
pebble crushers (SABC circuits)
- two copper-gold-silver-molybdenum bulk flotation circuits
- one copper-gold-silver/molybdenum separation circuit, including
molybdenum concentrate leaching to reduce copper/lead contents
- concentrate dewatering
• tailings disposal.

There will be four trains of copper-gold silver/molybdenum rougher/scavenger flotation. The products from the primary grinding circuits will feed to the rougher/scavenger flotation circuits which will produce a high-grade ro ........

Recoveries & Grades:

CommodityParameterAvg. LOM
Copper Recovery Rate, %  ......  Subscription required
Copper Head Grade, % 0.27
Copper Concentrate Grade, %  ......  Subscription required
Molybdenum Recovery Rate, %  ......  Subscription required
Molybdenum Head Grade, % 0.018
Molybdenum Concentrate Grade, %  ......  Subscription required
Gold Recovery Rate, %  ......  Subscription required
Gold Head Grade, g/t 0.19
Silver Recovery Rate, %  ......  Subscription required
Silver Head Grade, g/t 1.72
Subscription required - Subscription is required.

Projected Production:

CommodityProductUnitsAvg. AnnualLOM
Copper Concentrate kt 7,897
Copper Metal in concentrate M lbs 2324,875
Molybdenum Concentrate kt  ......  Subscription required
Molybdenum Metal in concentrate M lbs  ......  Subscription required  ......  Subscription required
Gold Metal in concentrate koz  ......  Subscription required  ......  Subscription required
Silver Metal in concentrate koz  ......  Subscription required  ......  Subscription required

Operational Metrics:

Metrics
Stripping / waste ratio 2 *
Daily ore mining rate 130,000 t *
Waste tonnes, LOM 1,890 Mt *
Annual milling capacity 47.5 Mt of ore *
Daily processing capacity 130,000 t of ore *
Tonnes processed, LOM 940,807 kt of ore *
* According to 2013 study.

Reserves at March 30, 2016:

CategoryTonnage CommodityGradeContained Metal
Proven 135.4 Mt Copper 0.31 % 0.92 B lbs
Proven 135.4 Mt Molybdenum 0.018 % 53.72 M lbs
Proven 135.4 Mt Gold 0.25 g/t 1.08 M oz
Proven 135.4 Mt Silver 1.81 g/t 7.88 M oz
Probable 805.41 Mt Copper 0.27 % 4.72 B lbs
Probable 805.41 Mt Molybdenum 0.018 % 319.52 M lbs
Probable 805.41 Mt Gold 0.19 g/t 4.96 M oz
Probable 805.41 Mt Silver 1.7 g/t 44.04 M oz
Proven & Probable 940.81 Mt Copper 0.27 g/t 5.64 B lbs
Proven & Probable 940.81 Mt Molybdenum 0.018 g/t 372.24 M lbs
Proven & Probable 940.81 Mt Gold 0.19 g/t 6.04 M oz
Proven & Probable 940.81 Mt Silver 1.72 g/t 51.92 M oz
Measured 146.62 Mt Copper 0.31 % 1 B lbs
Measured 146.62 Mt Molybdenum 0.017 % 54.92 M lbs
Measured 146.62 Mt Gold 0.24 g/t 1.16 M oz
Measured 146.62 Mt Silver 1.78 g/t 8.4 M oz
Indicated 1,082 Mt Copper 0.26 % 6.12 B lbs
Indicated 1,082 Mt Molybdenum 0.017 % 405.4 M lbs
Indicated 1,082 Mt Gold 0.18 g/t 6.24 M oz
Indicated 1,082 Mt Silver 1.68 g/t 58.32 M oz
Measured & Indicated 1,229 Mt Copper 0.26 % 7.12 B lbs
Measured & Indicated 1,229 Mt Molybdenum 0.017 % 460.32 M lbs
Measured & Indicated 1,229 Mt Gold 0.19 g/t 7.4 M oz
Measured & Indicated 1,229 Mt Silver 1.69 g/t 66.8 M oz
Inferred 597.19 Mt Copper 0.22 % 2.88 B lbs
Inferred 597.19 Mt Molybdenum 0.02 % 202.92 M lbs
Inferred 597.19 Mt Gold 0.17 g/t 3.36 M oz
Inferred 597.19 Mt Silver 1.65 g/t 31.6 M oz

Commodity Production Costs:

CommodityUnitsAverage
Cash costs Copper CAD 1.15 / lb *
Total cash costs Copper CAD 2.09 / lb *
Assumed price Molybdenum USD 14.6 / lb *
Assumed price Copper USD 3.25 / lb *
Assumed price Silver USD 27.7 / oz *
Assumed price Gold USD 1,445 / oz *
* According to 2013 study / presentation.

Operating Costs:

Units2013
OP mining costs ($/t mined) CAD 2.2 *
OP mining costs ($/t milled) CAD  ......  Subscription required
Processing costs ($/t milled) CAD  ......  Subscription required
Total operating costs ($/t milled) CAD  ......  Subscription required
* According to 2013 study.
Subscription required - Subscription is required.

2013 Study Costs and Valuation Metrics :

MetricsUnitsLOM Total
Pre-Production capital costs $M CAD  ......  Subscription required
Total Taxes $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 @ 10% $M CAD  ......  Subscription required
Pre-tax NPV @ 8% $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.

Proposed Heavy Mobile Equipment as of January 23, 2013:
HME TypeSizeQuantity
Crane 40 t 2
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Subscription required - Subscription is required.

Subscription required - Subscription is required.


Corporate Filings & Presentations:

DocumentYear
Press Release 2016
Feasibility Study Report 2013
Subscription required - Subscription is required.

Subscription required - Subscription is required.

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