Overview
Stage | Production |
Mine Type | Open Pit & Underground |
Commodities |
- Palladium
- Gold
- Platinum
- Copper
- Nickel
|
Mining Method |
- Sub-level shrinkage
- Sub-level caving
- Truck & Shovel / Loader
- Longhole open stoping
- Unconsolidated rockfill
|
Production Start | ... |
Mine Life | 2028 |
Impala Canada’s single operating asset, Lac des Iles (LDI), is in the Canadian province of Ontario. The operation comprises underground and surface mining operations and a concentrator.
A mill decoupling project at Impala Canada was commissioned during the 2023 FY. The C$29 million facility is delivering a more consistent feed rate, in a tighter size range, to the concentrator’s SAG mill. |
Source:
p. 10,42
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:
All of the PGE-Cu-Ni mineralization documented on the Property is classified as magmatic sulphide mineralization. Conventional magmatic sulphide deposits are defined as disseminated to massive sulphide deposits hosted by ultramafic or mafic rocks that contain economic concentrations of base metals and/or precious metals (PGE, Au, Ag). These deposits can occur in intrusions or lava flows (Naldrett, 2004). Recent advances in the understanding of the relationships between the geology, structure, alteration intensity, metal grades, geochemistry and geophysical characteristics at LDI show that the majority of the known mineral zones can be explained by physical sorting of dense sulphide liquid droplets and high-temperature orthopyroxene crystals from aluminum- and volatilerich residual magma. Increasingly, the importance of pre-magmatic structures in directing the upward flow of magma into the host intrusive complex and in determining the physical location of metal-rich sulphide trap sites is being recognized.
The Lac des Iles property captures the known extents of two discrete intrusive complexes.
These complexes include 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 is younger than the northern margin of the South Lac des Ile ........
Mining Methods
- Sub-level shrinkage
- Sub-level caving
- Truck & Shovel / Loader
- Longhole open stoping
- Unconsolidated rockfill
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 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, as hoisting to the surface through the shaft is maximised. 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 walls for stabil ........
Source:
Source:
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Flow Sheet:
Summary:
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Source:
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Production:
2020 Data reflects results for six months and 18 days.
Commodity | Product | Units | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 |
6E (Pt,Pd,Rh,Au,Ir,Ru)
|
Metal in concentrate
|
koz
| ...... ^ | ...... | ...... | ...... | ...... | ...... | |
Palladium
|
Metal in concentrate
|
koz
| | ...... | ...... | ...... | ...... | | |
Platinum
|
Metal in concentrate
|
koz
| | ...... | ...... | ...... | ...... | | |
3E (Pt, Pd, Au)
|
Metal in concentrate
|
oz
| | | ...... | ...... | ...... | | |
Nickel
|
Metal in concentrate
|
kt
| | | | ...... | ...... | | |
Palladium
|
Concentrate
|
kt
| | | | | | | ...... |
Palladium
|
Payable metal
|
koz
| | | | | | | ...... |
Gold
|
Payable metal
|
oz
| | | | | | | ...... |
Platinum
|
Payable metal
|
koz
| | | | | | | ...... |
Copper
|
Payable metal
|
lbs
| | | | | | | ...... |
Nickel
|
Payable metal
|
kt
| | | | | | | |
^ Guidance / Forecast.
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Operational Metrics:
Metrics | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 |
Hourly processing capacity
| ...... | | | | | |
Annual milling capacity
| ...... | ...... | ...... | ...... | | 4,470,000 t |
Tonnes milled
| ...... | ...... | ...... | ...... | | 4,237,734 dmt |
Daily milling capacity
| ...... | ...... | ...... | ...... | 13,500 t | 15,000 dmt |
Ore tonnes mined
| ...... | ...... | ...... | ...... | | 4,342,335 wmt |
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Reserves at June 30, 2023:
The Mineral Resources take into consideration, variable palladium grade cut-offs that reflect the identified mining method, and the consideration of existing underground excavations and other mining-related challenges. The cut-off grades range from 0.68g/t Pd for surface deposits and 1.0g/t Pd to 1.8g/t Pd for underground deposits.
Mineral Resources are reported inclusive of Mineral Reserves.
Category | Tonnage | Commodity | Grade | Contained Metal |
Proven & Probable
|
22 Mt
|
Palladium
|
|
1.62 M oz
|
Proven & Probable
|
22 Mt
|
Platinum
|
|
0.14 M oz
|
Proven & Probable
|
22 Mt
|
Copper
|
0.07 %
|
|
Proven & Probable
|
22 Mt
|
Nickel
|
0.06 %
|
|
Proven & Probable
|
22 Mt
|
3E (Pt, Pd, Au)
|
2.64 g/t
|
1.87 M oz
|
Total Resource
|
76.2 Mt
|
Palladium
|
|
5.46 M oz
|
Total Resource
|
76.2 Mt
|
Platinum
|
|
0.53 M oz
|
Total Resource
|
76.2 Mt
|
Copper
|
0.08 %
|
|
Total Resource
|
76.2 Mt
|
Nickel
|
0.07 %
|
|
Total Resource
|
76.2 Mt
|
3E (Pt, Pd, Au)
|
2.61 g/t
|
6.38 M oz
|
Mine Management:
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Staff:
Employees | Contractors | Total Workforce | Year |
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2023
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2022
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2021
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2020
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2017
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Corporate Filings & Presentations:
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