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Canada
Sisson Project

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 Location:
53 km NW from Fredericton, New Brunswick, Canada

  Project Contacts:
47 Avonlea Court
Fredericton
New Brunswick, Canada
E3C 1N8
Phone  ...  Subscription required
Fax506 455-0533
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
  • Tungsten
  • Molybdenum
Mining Method
  • Truck & Shovel / Loader
Mine Life27 years (as of Jan 1, 2013)


Owners

Source: p. 7
CompanyInterestOwnership
Todd Minerals Ltd. 11.5 % Indirect
Northcliff Resources Ltd. 88.5 % Indirect
Sisson Partnership 100 % Direct
Northcliff Resources Ltd. holds an 88.5% economic interest in the Sisson Tungsten and Molybdenum Project, located in New Brunswick, Canada. Todd Minerals Ltd. holds the remaining 11.5% interest in the Sisson Project.

The Sisson Partnership is owned by Northcliff Resources Ltd. of Vancouver, Canada and Todd Minerals Ltd. of New Zealand.

Contractors

Subscription required - Subscription is required.


Deposit Type

  • Hydrothermal
  • Vein / narrow vein


Summary:

The Sisson deposit can be defined as an intrusion related, structurally controlled, bulk tonnage tungstenmolybdenum deposit. Deposits of this type have general hydrothermal similarities to porphyry copper deposits. These types of deposit form in convergent margin to collisional tectonic environments and are related to highly evolved granitic melts formed from continental crust.

A larger granitic pluton as a source for mineralizing hydrothermal fluids at Sisson has not been intersected by drilling thus far, but the numerous, albeit narrow, granitic dykes allow the presence of such a body to be confidently inferred at depth below the deposit.

Structures focused the ascent from depth of the intrusion derived hydrothermal fluids which formed the Sisson deposit. The physical relationship between QS and SX veins exposed in exploration Trench 1 in Zone I and the concentration of mineralization along the disrupted contact between gabbro and the Turnbull Mountain Formation suggest the possible nature of this control. Trench 1 is cut by several broadly north trending, approximately vertical QS veins that are between 0.3 m and 1.5 m in width. Kinematic indicators support long-lived to episodic, sinistral movement along the structures which host the QS veins. Sheeted arrays of northwest trending, steeply dipping, narrow SX veins, as well as fewer but larger, lensoidal quartz extension veins, form an envelope at approximately conjugate angles to the larger QS veins. ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

Mining operations for the Sisson Project are typical of open pit, truck-and-shovel mining methods for year round operations in Canadian climates.

The mining fleet consists of 136-t trucks, 16.5 m3 hydraulic shovels and support equipment. The mining fleet will excavate, on average, approximately 23.7 million tonnes per year (Mt/a) over the life of the Sisson Project, including 10.5 Mt/a of mill feed, nominal 30,000 tonnes per day (tpd), 10.6 Mt/a of barren open pit rock and mid-grade stockpile and 2.6 Mt/a of quarry material for construction of the tailings facility embankments. The mine life is estimated to be 27 years.


Crushing and Grinding


Processing

Flow Sheet: Subscription required

Summary:

- subscription is required.


Projected Production:

CommodityProductUnitsAvg. AnnualLOM
Molybdenum Metal in concentrate M lbs 4.1111
WO3 Crystals kt  ......  Subscription required  ......  Subscription required

Operational Metrics:

Metrics
Stripping / waste ratio 1 *
Daily milling capacity 30,000 t *
Daily ore mining rate 30,000 t *
Annual mining capacity 23.7 Mt *
Waste tonnes, LOM 270,290 kt *
Ore tonnes mined, LOM 298,357 kt *
Total tonnes mined, LOM 568,647 kt *
Tonnes milled, LOM 281,489 kt *
Annual milling capacity 10.5 Mt *
Annual ore mining rate 10.5 Mt *
* According to 2013 study.

Reserves at January 22, 2013:
Mineral Reserves are estimated at a net smelter return (NSR) cut-off grade of $US8.83/t
Mineral Resources are estimated at a net smelter return (NSR) cut-off grade of $US9.00/t.

CategoryTonnage CommodityGradeContained Metal
Proven 105,415 kt Molybdenum 0.023 % 53.1 M lbs
Proven 105,415 kt WO3 0.069 % 7.3 M mtu
Probable 228,948 kt Molybdenum 0.02 % 101.7 M lbs
Probable 228,948 kt WO3 0.065 % 14.9 M mtu
Proven & Probable 334,363 kt Molybdenum 0.021 % 154.8 M lbs
Proven & Probable 334,363 kt WO3 0.066 % 22.2 M mtu
Measured 108 Mt Molybdenum 0.023 % 55.3 M lbs
Measured 108 Mt WO3 0.072 % 7.7 M mtu
Measured 108 Mt WO3Eq 0.096 %
Indicated 279 Mt Molybdenum 0.02 % 122 M lbs
Indicated 279 Mt WO3 0.065 % 18 M mtu
Indicated 279 Mt WO3Eq 0.086 %
Measured & Indicated 387 Mt Molybdenum 0.021 % 178 M lbs
Measured & Indicated 387 Mt WO3 0.067 % 25.7 M mtu
Measured & Indicated 387 Mt WO3Eq 0.089 %
Inferred 187 Mt Molybdenum 0.02 % 82.6 M lbs
Inferred 187 Mt WO3 0.05 % 9.41 M mtu
Inferred 187 Mt WO3Eq 0.074 %

2013 Study Costs and Valuation Metrics :

MetricsUnitsLOM Total
Initial CapEx $M CAD  ......  Subscription required
Sustaining CapEx $M CAD  ......  Subscription required
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 @ 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 @ 10% $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 22, 2013:
HME TypeSizeQuantity
Dozer 433 kW ....................... Subscription required
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Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required May 10, 2022
Subscription required - Subscription is required.


Corporate Filings & Presentations:

DocumentYear
Feasibility Study Report 2013
Subscription required - Subscription is required.

Subscription required - Subscription is required.

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