MCILVENNA BAY (CANADA)
McIlvenna Bay is part of the prolific Flin Flon Greenstone Belt located in east-central Saskatchewan
This underground copper-zinc-gold-silver mine produced its first copper concentrate in June 2026, followed by its first zinc concentrate in July 2026.
The operation is now ramping up toward commercial production and expected to be achieved in Q3 2026.
McIlvenna Bay Progress
Updated in February 2026 by Foran Mining.
Advancing McIlvenna Bay
As of June 30, 2026, the operating team is now focused on optimizing current operations and increasing throughput to full design capacity, with a ramp up to commercial production.
Primary Crusher Building
More than 400 kt of copper and zinc mineralized material is available on surface for processing. The primary crusher is operating at design capacity, material transfer to the fine ore bin is expected, and ore-sorting and metal separation practices continue to be refined.
Process Plant
The SAG and ball mill circuits are ramping up well and continue to demonstrate increasing throughput as commissioning advances. As expected for a new processing plant, we contnue to work through equipment, instrumentation and other availability-related challenges associated with ramp-up. Throughput is expected to continue increasing through the third quarter as the operation progresses toward commercial production.
Flotation
All flotation circuits are fully commissioned and have successfully produced copper, zinc and pyrite concentrates. FInal commissioning of the regrind circuit is underway and expected to be completed in early August, supporting further improvements in concentrate quality as ramp-up progresses.
Thickening & Filtration
The thickening and filtration circuits are key to the ramp up of production. The teams are working to optimize the sequence of filtration and the thickening control circuit.
Underground Development
Underground development conitnues to advance well. In addition to the 400 kt of ore stockpiled on surface, the mine has approximately 20 kt of blasted inventory, more than 330 km of drilling, and approximately 2 million tonnes of fully developed reserves within Block 1.
Study Commenced on Processing Expansion, Including Throughput Increase and Silver-Lead Circuit
The Company has commenced a study to evaluate an expansion of the processing facility, which includes an increase in throughput as well as the incorporation of a silver-lead circuit. The expansion will evaluate a potential increase of processessing capacity at McIlvenna Bay from 4,900 tonnes per day to approximately 7,000 tonnes per day. The addition of a dedicated silver-lead circuit into the flowsheet is expected to enable recovery of lead into a seperate concentrate and improve payable silver recoveries related to the current design.
This initial study will assess the technical, economic, environmental and permitting considerations associated with the expansion. Any future development would be subject to completion of the project evaluation, receipt of required permits, Indigenous and Stakeholder engagement, and a positive final investment decision. The Company is targeting commissioning of the silver-lead circuit in 2028 and the expansion in 2030.
Positioned as the Foundation for Long-Term District Growth
The McIlvenna Bay Mine is core to our view of the district-scale geological potential to deliver future satelite development opportunities. Ongoing exploration will target additional resources, which could support further expansion or a saparate processing facility over time. The 2026 exploration program includes approximately 14,000 metres of diamond drilling focused on resource expansion, high grade extensions, and advancing regional targets.
In parallel, core scanning programs will enhance geological modelling and orebody characterization. Airborne and ground geophysical surveys are expceted to help refine known deposit footprints and identify new targets across the broader land package.
KEY HIGHLIGHTS
Location
Mine type
Metals mined
Expected mine life
Deposit type
Ownership
* Historical reports related to mineral reserve and mineral resource for Foran Mining can be found on sedarplus.ca.
GEOLOGY AND MINERALIZATION
The McIlvenna Bay is a volcanic‑hosted polymetallic deposit located within the Flin Flon Greenstone Belt, one of Canada’s most prolific base metal mining districts. Mineralization is characteristic of a volcanogenic massive sulphide (VMS) system and occurs as stratabound massive to semi‑massive sulphide lenses, underlain by copper‑rich stringer and stockwork zones within altered felsic volcanic rocks. Copper and zinc are the primary metals, with associated gold and silver, and the deposit remains open along strike and at depth, supporting potential for future resource growth.
TESLA ZONE TARGET
The Tesla Zone forms part of the McIlvenna Bay and is located adjacent to the mine area, offering strong potential for resource expansion and extended mine life. Ongoing exploration has delivered consistent high‑grade drill results with thick mineralized intervals, supporting its growth potential.
Discovered in 2022, the Tesla Zone was identified through drilling that intersected significant copper, zinc, and precious‑metal‑rich mineralization. Mineralization occurs as massive sulphides, stringers, and breccia zones, extending over approximately 1,350 metres of strike length and 500 to 700 metres down‑dip.
The target represents a significant near‑mine exploration opportunity, with an estimated exploration target of 28 to 45 million tonnes. It benefits from immediate access to existing infrastructure and remains open down‑dip, highlighting the potential for continued growth. An initial Mineral Resource for Tesla is expected to be published in Q4 2026. An updated Technical Report is expected to be released in Q1 2027.
Image gallery
Governance Reports
| REPORT TITLE | LINK |
|---|---|
| ESTMA 2024 | Download PDF |
| ESTMA 2023 | Download PDF |
| ESTMA 2022 | Download PDF |
| Annual Information Form 2025 | Download PDF |
| Annual Information Form 2024 | Download PDF |
| Annual Information Form 2023 | Download PDF |
| Annual Information Form 2022 | Download PDF |
| Annual Information Form 2021 | Download PDF |
| Annual Information Form 2020 | Download PDF |
| Annual Information Form 2014 | Download PDF |
| Reports on Supply Chain Act 2025 | Download PDF |
Technical Report
| REPORT TITLE | LINK |
|---|---|
| McIlvenna Bay Technical Report - June 2026 | Download PDF |
Historical technical reports for McIlvenna Bay and Foran's financial statements and MD&A can be found at sedarplus.ca under Foran Mining.
Disclaimer:
*All project economics and related parameters presented on this page are derived from historical technical reports prepared by the project's previous owner. Historical technical reports for McIlvenna Bay can be found at sedarplus.ca.