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Canada
Lac des Iles Mine

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 Location:
90 km NW from Thunder Bay, Ontario, Canada

  Address:
1136 Alloy Drive, Suite 100
P.O. Box 10547
Thunder Bay
Ontario, Canada
P7B 6M9
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Fax(416)-360-7709
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  • Overview
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  • Mining
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  • Costs & Financials
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Overview

StageProduction
Mine TypeOpen Pit & Underground
Commodities
  • Palladium
  • Gold
  • Platinum
  • Copper
  • Nickel
Mining Method
  • Sub-level shrinkage
  • Truck & Shovel / Loader
  • Sub-level caving
  • Longhole open stoping
  • Backfill
Production Start...
Mine Life10 years (as of Jan 1, 2022)


Owners

Source: p. 19
CompanyInterestOwnership
Impala Canada Ltd. (operator) 100 % Direct
Impala Platinum Holdings Ltd. 100 % Indirect
Impala Platinum Holdings Limited (Implats) acquired North American Palladium Limited in 2019 to form Impala Canada Limited, a wholly owned subsidiary of Implats. Impala Canada Limited owns and operates the Lac des Iles Mine.

Contractors

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Deposit Type

  • Magmatic
  • Intrusion related


Summary:

The Lac des Iles Mine property captures the known extents of two discrete intrusive complexes, including the South Lac des Iles Intrusive Complex (IC) comprising the former Mine block, South Lac des Iles and Camp Lake intrusions, and the North Lac des Iles Intrusive Complex (IC).

Intrusive contacts between the two complexes suggest that the southern part of the North Lac des Iles IC was younger than the northern margin of the South Lac des Iles IC.

The North Lac des Iles IC consists of layered ultramafic rocks distributed within two types of cyclic units, including an orthopyroxenebearing cyclic unit and an orthopyroxene-free cyclic unit. Historical surface prospecting, mapping, limited trenching and diamond drilling have identified several areas in the North Lac des Iles IC hosting PGE occurrences exceeding 1.0g/t of combined Pd+Pt+Au. These PGM occurrences are interpreted to represent stratiform or reef-type magmatic PGM mineralisation.

The South Lac des Iles IC was emplaced into predominantly intermediate composition orthogneiss basement rocks. Four major intrusive sequences (series) are recognised in the complex. Mapping and drilling have shown that the central-east part of the South Lac des Iles IC is an upright, homoclinal sequence (south-facing igneous stratigraphy) with a general north-easterly strike direction and steep southerly dips. In contrast, the major units in the western end of the complex that host most of the palladium miner ........


Mining Methods

  • Sub-level shrinkage
  • Truck & Shovel / Loader
  • Sub-level caving
  • Longhole open stoping
  • Backfill


Summary:

Mine production at Lac des Iles occurs from three areas: Surface Pit, Roby Zone, and the Offset Zone. These areas are broken down further by mining method, mineralisation zone and/or spatial location.

Most of the Roby Zone’s planned production involves sub-level caving (SLC) targeting ore below and southwest of the current dormant pit. Production from these near-surface zones will involve a gradual ramping up of the caving operations culminating in steady-state production in 2024. Ore tonnes from the Roby Zone are transported via haul truck through a ramp to the south portal.

Production from the Offset Zone includes production by the open hole stoping (OHS) and sub-level shrinkage (SLS) methods. The SLS production represents the bulk of the Offset Zone production. Production from each of the lower mine zones will remain relatively constant over the LoM. With the exception of the near-surface Sheriff South Zone, the ore is typically hoisted to the surface through the shaft.

Sub-Level Shrinkage (SLS) and Sub-Level Caving (SLC)
The SLC mining method and the modified version called SLS are modern, highly mechanized, high tonnage, low operating cost mining methods. Sub-level shrinkage is sub-level caving with waste rock added on top of the broken ore blanket to fill the air gap between the top of the cave and the ore blanket in zones where the rock will not cave reliably. The introduced backfill serves to provide some confinement to the cave w ........


Crushing and Grinding
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Processing

Flow Sheet: Subscription required

Summary:

- subscription is required.


Production:
2020 Data reflects results for six months and 18 days.

CommodityProductUnits2022202120202019201820172016
6E (Pt,Pd,Rh,Au,Ir,Ru) Metal in concentrate koz  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Palladium Metal in concentrate koz  ......  Subscription required  ......  Subscription required  ......  Subscription required
Platinum Metal in concentrate koz  ......  Subscription required  ......  Subscription required  ......  Subscription required
Nickel Metal in concentrate kt  ......  Subscription required  ......  Subscription required
Palladium Concentrate kt  ......  Subscription required  ......  Subscription required  ......  Subscription required
Palladium Payable metal koz  ......  Subscription required  ......  Subscription required  ......  Subscription required
Gold Payable metal oz  ......  Subscription required  ......  Subscription required  ......  Subscription required
Platinum Payable metal koz  ......  Subscription required  ......  Subscription required  ......  Subscription required
Copper Payable metal lbs  ......  Subscription required  ......  Subscription required  ......  Subscription required
Nickel Payable metal kt  ......  Subscription required  ......  Subscription required
^ Guidance / Forecast.
Subscription required - Subscription is required.

Operational Metrics:

Metrics202220212020201920182017
Tonnes milled  ......  Subscription required  ......  Subscription required4,237,734 dmt2,780,119 dmt
Annual milling capacity  ......  Subscription required  ......  Subscription required  ......  Subscription required4,470,000 t
Daily milling capacity  ......  Subscription required  ......  Subscription required  ......  Subscription required13,500 t15,000 dmt15,000 dmt
Ore tonnes mined  ......  Subscription required  ......  Subscription required  ......  Subscription required4,342,335 wmt2,859,174 wmt
Subscription required - Subscription is required.

Reserves at June 30, 2022:

CategoryTonnage CommodityGradeContained Metal
Proven & Probable 40.4 Mt Palladium 2.48 M oz
Proven & Probable 40.4 Mt Platinum 0.23 M oz
Proven & Probable 40.4 Mt Copper 0.06 %
Proven & Probable 40.4 Mt Nickel 0.06 %
Proven & Probable 40.4 Mt 3E (Pt, Pd, Au) 2.22 g/t 2.88 M oz
Total Resource 91.2 Mt Palladium 6.07 M oz
Total Resource 91.2 Mt Platinum 0.59 M oz
Total Resource 91.2 Mt Copper 0.06 %
Total Resource 91.2 Mt Nickel 0.07 %
Total Resource 91.2 Mt 3E (Pt, Pd, Au) 2.42 g/t 7.09 M oz

Commodity Production Costs:

Commodity2022202120202019201820172016
Cash costs 6E (Pt,Pd,Rh,Au,Ir,Ru)  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Cash costs (sold) Palladium 531 / oz†  USD 509 / oz†  USD 572 / oz†  USD
All-in sustaining costs (AISC) Palladium 690 / oz†  USD 694 / oz†  USD 728 / oz†  USD
^ Guidance / Forecast.
† Net of By-Product.
Subscription required - Subscription is required.

Operating Costs:

Units20202018201720162015
Total operating costs ($/t milled) USD 5245576767

Financials:

Units202320222021201820172016
Capital expenditures (planned) M CAD  ......  Subscription required
Capital expenditures M CAD  ......  Subscription required  ......  Subscription required 54.6   52.7   47.5  
Sustaining costs M CAD 32   27.6   10  
Revenue M  ......  Subscription required  ......  Subscription required 396.8  CAD 272.4  CAD 166.9  CAD
Gross profit M  ......  Subscription required  ......  Subscription required
Pre-tax Income M  ......  Subscription required  ......  Subscription required
After-tax Income M  ......  Subscription required  ......  Subscription required 119.2  CAD 30.3  CAD -37.5  CAD
EBITDA M 167.8  CAD 86.3  CAD 0.1  CAD
Operating Cash Flow M  ......  Subscription required  ......  Subscription required
Subscription required - Subscription is required



Heavy Mobile Equipment as of October 2, 2018:
HME TypeModelSizeQuantityStatusLeased or
Contractor
ANFO Loader ....................... Subscription required Existing Leased
Concrete sprayer ....................... Subscription required Existing Leased
Dozer ....................... Subscription required ....................... Subscription required Existing
Dozer ....................... Subscription required ....................... Subscription required Existing
Drill ....................... Subscription required Existing Leased
....................... Subscription required ....................... Subscription required Proposed
Drill (long hole) ....................... Subscription required Existing Leased
Drill jumbo (two boom) ....................... Subscription required Existing Leased
....................... Subscription required ....................... Subscription required Proposed
Excavator ....................... Subscription required ....................... Subscription required Existing
Excavator ....................... Subscription required ....................... Subscription required Existing
Grader ....................... Subscription required ....................... Subscription required Existing
Grader ....................... Subscription required Existing Leased
Loader ....................... Subscription required ....................... Subscription required Existing
Load-Haul-Dump (LHD) 8 cu. yd ....................... Subscription required Existing Leased
....................... Subscription required ....................... Subscription required Proposed
Personnel Carrier ....................... Subscription required Existing Leased
Scissor Lift ....................... Subscription required Existing Leased
Scoop Tram 3.5 cu. yd ....................... Subscription required Existing Leased
Scoop Tram 4 cu. yd ....................... Subscription required Existing Leased
Trans Mixer ....................... Subscription required Existing Leased
Truck (haul) ....................... Subscription required ....................... Subscription required Existing
Truck (haul) ....................... Subscription required ....................... Subscription required Existing
Truck (underground) 40 t ....................... Subscription required Existing Leased
....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed
Truck (water) 50 t ....................... Subscription required Existing Leased
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Nov 30, 2022
....................... Subscription required ....................... Subscription required Subscription required Nov 30, 2022
....................... Subscription required ....................... Subscription required Subscription required Nov 30, 2022
....................... Subscription required ....................... Subscription required Subscription required Nov 30, 2022
....................... Subscription required ....................... Subscription required Subscription required Nov 30, 2022
....................... Subscription required ....................... Subscription required Subscription required Nov 30, 2022
....................... Subscription required ....................... Subscription required Subscription required Nov 30, 2022
....................... Subscription required ....................... Subscription required Subscription required Nov 30, 2022
....................... Subscription required ....................... Subscription required Subscription required Nov 30, 2022
....................... Subscription required ....................... Subscription required Subscription required Nov 30, 2022
....................... Subscription required ....................... Subscription required Subscription required Nov 30, 2022
Subscription required - Subscription is required.

Staff:

EmployeesContractorsTotal WorkforceYear
Subscription required Subscription required Subscription required 2022
Subscription required Subscription required Subscription required 2021
Subscription required 2020
Subscription required 2017

Corporate Filings & Presentations:

DocumentYear
Annual Result 2022
Financial Review 2022
Integrated Report 2022
Sustainability Report 2022
Year-end Mineral Reserves 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
Feasibility Study Report 2018
Management Discussion & Analysis 2018
Annual Report 2017
Feasibility Study Report 2017
Press Release 2017
Annual Report 2016
Management Discussion & Analysis 2016
Annual Report 2015
Subscription required - Subscription is required.

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