Further High-Grade Copper Hits at Sulphide City

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Stock Qmines Ltd (QML.ASX)
Release Time 15 Sep 2025, 8:27 a.m.
Price Sensitive Yes
 Further High-Grade Copper Hits at Sulphide City
Key Points
  • Drilling at Sulphide City continues to yield broad copper-zinc-gold intersections, confirming excellent continuity of mineralisation
  • A total of 42 drill holes now completed for 7,890 metres with diamond coring continuing
  • Further high-grade intersections returned from six holes with results up to 4m @ 4.28% CuEq
Full Summary

QMines Limited (QMines or Company) (ASX:QML) is pleased to announce the latest results from its multi-rig drilling program at the Sulphide City deposit which forms part of the Develin Creek project located approximately 90km northwest of Rockhampton in Queensland. QMines has now completed a total of 81 drillholes since acquiring the Develin Creek project. At the Sulphide City deposit 42 drillholes have been completed for 7,890 metres including 4 diamond core holes from the current drilling program. The recent results from the Sulphide City and Scorpion-Window drilling are now presented as Copper Equivalent (CuEq) for ease of comparison. The drilling continues to test and confirm the deeper semi-massive and massive sulphide mineralisation as infill and resource drilling with the diamond rig now on the fourth drillhole in the diamond program. Drillholes DCRD062 to DCRC079 have yielded further broad significant intersections, confirming the presence and continuity of mineralisation which continues to exhibit tenor and style consistent with previous historical drilling for the prospect. The Sulphide City deposit geology appears to be somewhat different in style than that found at the Scorpion and Window deposits, with a complex primary depositional environment exhibiting not only distinct massive and semi-massive sulphide bodies but also stockwork and disseminated sulphide. The mineralisation at Sulphide City appears variously impacted by post-depositional deformation indicating the deposit is a structurally controlled accumulation of VMS mineralisation.

Outlook

QMines is advancing several parallel workstreams as it moves toward the delivery of an updated Pre-Feasibility Study (PFS) in 2H-2026. These upcoming activities are designed to increase project definition, extend mine life, and optimise the economics of the Company's planned centralised processing plant at Mount Chalmers. This includes ongoing drilling at the Sulphide City deposit, maiden drilling operations at the Mount Mackenzie project, open pit mine designs and plans, PFS-level metallurgical testwork, and a preliminary scoping study to evaluate the combined project's initial economic parameters.