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Canada
Thierry Project

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 Location:
11 km NW from Pickle Lake, Ontario, Canada

  Project Contacts:
2520 – 16 St NW
Calgary
Alberta, Canada
T2M 3R2
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Overview

StagePreliminary Economic Assessment
Mine TypeUnderground
Commodities
  • Copper
  • Nickel
  • Platinum
  • Palladium
  • Gold
  • Silver
Mining Method
  • Longhole stoping
  • Longitudinal retreat
  • Paste backfill
Mine Life14 years (as of Jan 1, 2021)


Owners

Source: p. 1
CompanyInterestOwnership
Canadian Critical Minerals Inc. 100 % Indirect
December 23, 2020- Braveheart has purchased all the shares of Cadillac Ventures Holdings Inc., Cadillac Ventures Inc. wholly-owned subsidiary which owns the Thierry Project.

Contractors

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Deposit Type

  • Breccia pipe / Stockwork
  • Magmatic


Summary:

Early investigations of the Thierry Deposit by workers such as Bowdidge (1970), Patterson (1980), and Patterson and Watkinson (1983, 1984) concluded that the ores at the Thierry Deposit had undergone intense modification after their initial deposition as magmatic sulphides. This observation also applies to the K1-1 area.

Any model of mineralized rock genesis at the Thierry Project must take into account the unusual Cu/Ni, Pt/Pd and chalcopyrite pyrrhotite ratios in the rocks. According to Naldrett and Cabri (1976), intrusive complexes similar to those at Thierry Deposit contain sulphides with a coppernickel ratio of 2:1, a platinum-palladium ratio of 1:4, and a chalcopyrite/pyrrhotite ratio of 1:10.These ratios at the Thierry Deposit are approximately: copper-nickel 8:1, platinum/palladium 1:4 and chalcopyrite/pyrrhotite 1:1.

Mineralization at the main Thierry and adjacent K1-1 deposits, is more or less coincident with what is best characterized as a chlorite biotite-hornblende altered mylonitic shear zone (the “CBS shear zone”). The shear zone extends across the ultramafic intrusive along a strike length of about one kilometre and a width up to 50 m. Within the shear zone mineralization is hosted by highly schistose rocks containing stringer sulphides to less schistose ultramafic rocks containing massive stringers or veins and disseminated sulphides. Primary sulphides, listed in approximate order of decreasing abundance are pyrrhotite, chalcopyrite, ........


Mining Methods

  • Longhole stoping
  • Longitudinal retreat
  • Paste backfill


Summary:

The Thierry underground Deposit will be mined by underground long-hole retreat method.

Access to the Thierry Deposit would be via a 6.5 m diameter, concrete lined 965 m (3,160 ft) deep fresh air shaft and a -15% ramp from surface to a depth of 1,260 m (4,130 ft). There will be two shaft loading pocket stations, one at a depth of 475 m (1,550 ft) and a second at a depth of 920 m (3,010 ft). Two hoists would be configured to transport workers and skip mineralized rock between surface and the underground loading pocket levels. Operating materials would be transported to and from the mine via the ramp from surface.

A conceptualized mining plan has been developed using mechanized trackless mining equipment. The primary mining method would be conventional longitudinal long-hole retreat with paste backfill. Above the 490 m (1,610 ft) elevation sub-levels will be developed at 15 m (50 ft) vertical intervals. Below the 490 m (1,610 ft) elevation sub-levels will be developed at 21 m (70 ft) vertical intervals. Drifts in mineralization would be developed to the full length of the Thierry Deposit. These drifts would provide access for the successive operations of slot raise development, blasthole drilling and blasting, and backfill placement. The average thickness of the mineralization is 6.7 m (22.1 ft). Remote-operated underground load/haul/dump (“LHD”) units would remove broken mineralization from the stope and from the excavated drifts in mineralized rock. ........


Crushing and Grinding
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Processing

Flow Sheet: Subscription required

Summary:

- subscription is required.


Projected Production:

CommodityProductUnitsDailyLOM
Copper Payable metal M lbs 567
Copper Concentrate kt  ......  Subscription required880
Nickel Payable metal M lbs  ......  Subscription required
Copper-Nickel Concentrate kt  ......  Subscription required  ......  Subscription required

Operational Metrics:

Metrics
Daily mining rate  ......  Subscription required
Ore tonnes mined, LOM  ......  Subscription required
Daily processing capacity  ......  Subscription required
Daily processing rate  ......  Subscription required
Annual processing rate  ......  Subscription required
* According to 2021 study.
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Reserves at January 21, 2021:
Thierry mineral resource estimate at CDN$60/T NSR cut-off
K1-1 PIT constrained inferred mineral resource estimate at CDN$12/T NSR cut-off

CategoryOreTypeTonnage CommodityGrade
Measured & Indicated In-Situ (UG) 8,815 kt Copper 1.66 %
Measured & Indicated In-Situ (UG) 8,815 kt Nickel 0.19 %
Measured & Indicated In-Situ (UG) 8,815 kt Platinum 0.04 g/t
Measured & Indicated In-Situ (UG) 8,815 kt Palladium 0.13 g/t
Measured & Indicated In-Situ (UG) 8,815 kt Gold 0.05 g/t
Measured & Indicated In-Situ (UG) 8,815 kt Silver 4 g/t
Inferred In-Situ (OP) 53,614 kt Copper 0.38 %
Inferred In-Situ (UG) 14,922 kt Copper 1.64 %
Inferred In-Situ (OP) 53,614 kt Nickel 0.1 %
Inferred In-Situ (UG) 14,922 kt Nickel 0.16 %
Inferred In-Situ (OP) 53,614 kt Platinum 0.05 g/t
Inferred In-Situ (UG) 14,922 kt Platinum 0.07 g/t
Inferred In-Situ (OP) 53,614 kt Palladium 0.14 g/t
Inferred In-Situ (UG) 14,922 kt Palladium 0.21 g/t
Inferred In-Situ (OP) 53,614 kt Gold 0.03 g/t
Inferred In-Situ (UG) 14,922 kt Gold 0.1 g/t
Inferred In-Situ (OP) 53,614 kt Silver 1.83 g/t
Inferred In-Situ (UG) 14,922 kt Silver 6.4 g/t

Commodity Production Costs:

CommodityUnitsAverage
Cash costs Copper Equivalent USD  ......  Subscription required *†
All-in sustaining costs (AISC) Copper Equivalent USD  ......  Subscription required *†
Assumed price Palladium USD  ......  Subscription required&nbs
Assumed price Platinum USD  ......  Subscription required&nbs
Assumed price Nickel USD  ......  Subscription required&nbs
Assumed price Copper USD  ......  Subscription required&nbs
Assumed price Silver USD  ......  Subscription required&nbs
Assumed price Gold USD  ......  Subscription required&nbs
* According to 2021 study / presentation.
† Net of By-Product.
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Operating Costs:

Units2021
UG mining costs ($/t mined) CAD 40 *
UG mining costs ($/t milled) CAD  ......  Subscription required
Processing costs ($/t milled) CAD  ......  Subscription required
G&A ($/t milled) CAD  ......  Subscription required
Total operating costs ($/t milled) CAD  ......  Subscription required
* According to 2021 study.
Subscription required - Subscription is required.

2021 Study Costs and Valuation Metrics :

MetricsUnitsLOM Total
Pre-Production capital costs $M CAD  ......  Subscription required
Sustaining CapEx $M CAD  ......  Subscription required
Closure costs $M CAD  ......  Subscription required
Total CapEx $M CAD  ......  Subscription required
UG OpEx $M CAD  ......  Subscription required
Processing OpEx $M CAD 263.3
Backfill costs $M CAD  ......  Subscription required
Transportation (haulage) costs $M CAD 167.4
G&A costs $M CAD 96.5
Total OpEx $M CAD  ......  Subscription required
Total Taxes $M CAD  ......  Subscription required
Net revenue (LOM) $M CAD  ......  Subscription required
EBITDA (LOM) $M CAD  ......  Subscription required
After-tax Cash Flow (LOM) $M CAD  ......  Subscription required
After-tax NPV @ 5% $M CAD  ......  Subscription required
After-tax NPV @ 10% $M CAD  ......  Subscription required
After-tax NPV @ 6% $M CAD  ......  Subscription required
After-tax IRR, %  ......  Subscription required
After-tax payback period, years  ......  Subscription required
Subscription required - Subscription is required.


Proposed Heavy Mobile Equipment as of January 21, 2021:
HME TypeModelSizeQuantity
Alimak climber ....................... Subscription required
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Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Aug 18, 2021
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Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
Annual Report 2016
Corporate Presentation 2015
Preliminary Economic Assessment 2012
Subscription required - Subscription is required.

Subscription required - Subscription is required.

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