• Indicated Mineral Resources grew 46% to 4.22Mt @ 0.98% Cu and 1.08% Zn
• Total Mineral Resources increased 14% to 4.70Mt with mineralisation remaining open
• Optimisation studies have commenced accelerating Develin Creek toward development readiness

QMines Limited (QMines or the Company) is pleased to report an upgraded Mineral Resource Estimate (MRE) for the Develin Creek Copper-Zinc-Gold-Silver Project. The updated MRE has been completed by Hyland Geological and Mining Consultants (HGMC) in accordance with the JORC Code (2012). The upgrade reflects a significant increase in Indicated Mineral Resources, supported by the 2024-2025 infill and extension drilling programs. It also incorporates a revised geological interpretation that better defines the stacked and locally discontinuous volcanogenic hosted massive sulphide (VHMS) lens geometry. The Indicated Mineral Resources grew 46% to 4.22Mt @ 0.98% Cu and 1.08% Zn, materially de-risking the project and strengthening the pathway toward future production. Total Mineral Resources increased 14% to 4.70Mt with mineralisation remaining open along strike and at depth demonstrating further upside potential. The high proportion of Indicated Mineral Resources strongly supports robust design and scheduling decisions once appropriate modifying factor work is completed. QMines intends to progress a study-aligned program of work to build on the upgraded confidence profile and assess pathways for potential integration of Develin Creek into the Mt Chalmers development schedule.

QMines intends to progress a study-aligned program of work to build on the upgraded confidence profile and assess pathways for potential integration of Develin Creek into the Mt Chalmers development schedule, including extension and exploration drilling, geotechnical drilling, and dedicated metallurgical sampling.