Technical Study
Cantex Announces Outstanding Preliminary Flotation Results; Achieves Premium-Grade Lead and Zinc Concentrates with Strong Silver Credits at North Rackla
Cantex Announces Outstanding Preliminary Flotation Results; Achieves Premium-Grade Lead and Zinc Concentrates with Strong Silver Credits at North Rackla

Executive Summary
- Cantex announced preliminary flotation testwork results for its 100% owned North Rackla project in the Yukon.
- Conventional sulphide flotation successfully produced premium-grade lead and zinc concentrates from high-grade, low-grade, and oxide mineralization.
- High-grade sulphide lead achieved 85.1% recovery at 53.6% Pb grade with 960 g/t Ag.
- Low-grade sulphide lead achieved 91.1% recovery at 51.0% Pb grade with 532 g/t Ag.
- Oxide mineralization, previously classified as waste, now yields a saleable lead concentrate at 53.0% Pb and 410 g/t Ag.
- All results exceeded the critical commercial benchmark of >45% metal purity for final concentrates.
- The testwork de-risks the processing flowsheet and confirms commercial viability using industry-standard plant designs.
- The company is evaluating ore sorting and direct ore shipments for high-grade portions, while low-grade portions will utilize standard flotation.
Material Impact
- The June 2, 2026 announcement is a direct follow-up to the January and April 2026 metallurgical testwork announcements.
- It confirms the initial positive findings and successfully transitions the project from early-stage metallurgical testing to flowsheet confirmation.
- The ability to process oxide material as starter feed and achieve high silver credits significantly enhances the potential project economics.
- The news is positive but expected as part of the planned metallurgical study progression. It does not introduce fundamentally new surprises but validates the project's commercial potential.
- The market reaction has been muted, with the stock consolidating around $0.29-$0.31, indicating the news is priced in as routine project advancement.
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Company Overview
- Cantex Mine Development Corp. is an exploration-stage company focused on the North Rackla project in the Yukon, Canada.
- The flagship project hosts massive sulphide silver-lead-zinc-germanium mineralization.
- The company claims the highest-grade silver-lead-zinc-germanium mineralization ever found in North America.
- Drilling has defined over 2.65 km of strike length and extends beyond 700 meters in depth.
- The land package covers 14,077 hectares, providing extensive exploration potential.
- The project is in the exploration phase, with no declared reserves or resources yet.
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Jun 04, 2026 · 08:30