Argyle completes drilling campaign at Lac Comporte

Executive Summary

• Argyle Resources Corp. successfully completed a 2,287-metre diamond drilling campaign at its Lac Comporté silica project in Quebec during December 2025.
• The program targeted two high-priority, west-northwest-trending quartzitic units with surface grades reaching up to 98% SiO2, maintaining an average drilling rate of 104 metres per day over 23 days.
• Core samples are currently being prepared for laboratory analysis, with a full suite of assay results anticipated in early Q1 2026.

Key Details

• Total Drilling: 2,287 metres completed over a 23-day campaign in December 2025.
• Drilling Efficiency: Averaged 104 metres per day despite challenging winter weather and logistical constraints.
• Target Geology: Two west-northwest-trending, kilometre-scale quartzitic units previously identified during the 2025 summer field program.
• Surface Grades: Quartzitic units exhibit metre-scale thicknesses with surface grades up to 98% SiO2.
• Core Recovery: NQ-sized core was utilized; preliminary visual inspections indicate significant quartzitic intervals pending laboratory verification.
• Assay Timeline: All core samples are being prepared for laboratory submission, with full results expected in early Q1 2026.
• Qualified Person: George Yordanov, PGeo (Director), reviewed and approved all scientific and technical information in compliance with National Instrument 43-101.

Notable Quotes

• Jeffrey Stevens, Chief Executive Officer: "We are extremely pleased with the successful completion of our 2025 drilling campaign at the Lac Comporte silica project. We look forward to sharing these results and continuing to build value for our shareholders and stakeholders in Quebec's Bas-Saint-Laurent region."