QMines Limited’s Maiden RC Drilling at Sulphide City Uncovers High-Grade Copper-Zinc Intersections, Fueling Resource Expansion and VMS Growth Potential
Monday, July 28, 2025
at
8:41 am
QMines Limited’s first drilling at its Sulphide City deposit confirms high-grade copper, zinc, gold, and silver intersections. Encouraging early results, including stacked mineralised zones, bolster resource expansion plans and indicate potential for an upgrade in resource classification. Ongoing drilling further underpins the project's promising value.
QMines Limited’s recent announcement details promising results from its maiden 8,000‑metre reverse circulation drilling program at the Sulphide City deposit, part of the Develin Creek project located northwest of Rockhampton in Queensland. The company’s two drilling rigs have completed 27 holes for nearly 6,000 metres, with early assays confirming high-grade intersections. Notable drill holes include one reporting a 9‑metre intersection with 2.63% copper, 4.2% zinc, 0.12g/t gold and 5.6g/t silver, as well as another showcasing an 11‑metre zone with 1.6% copper and 3.2% zinc. These outcomes not only align with historical data but also add confidence to the continuity of the high-grade, massive sulphide mineralisation in the deposit.
The drilling program, designed to expand and infill the current resource with a view to moving more of the material into the Indicated category, has also implemented diamond tail extensions. These additional sections are intended to provide a clearer picture of the depositional geometry and structural complexity within the sulphide zones. Meanwhile, assay results from 14 further drill holes are still pending, with additional drilling announcements expected over the coming months, providing a dynamic outlook for resource updates.
Integrated into a wider strategy, QMines Limited has also delivered updated Mineral Resource Estimates across its network of projects, including Develin Creek, Mt Chalmers, and Mt Mackenzie. Recent resource estimates have shown encouraging tonnages and grades for copper, zinc, gold, and silver. The results at Sulphide City reinforce the potential for a larger volcanic-associated massive sulphide system, suggesting that the mineralisation could extend further than currently defined. The enhanced geological understanding supports future mine planning and regional development strategies that integrate open-pit optimisation studies, metallurgical test work, and scoping studies aimed at defining a blended operation across the projects.
Looking ahead, QMines Limited outlined several key milestones. These include ongoing drilling results as they enhance the existing data base, an open-pit optimisation study at the Scorpion deposit with results expected in August, and further work on underground mining potential at Sulphide City to target higher-grade material. In addition, an updated Pre-Feasibility Study is planned for the first half of 2026, which will consolidate the evolving mine plan, capital, and operating cost estimates. These developments are critical as the company moves closer to transitioning towards sustainable copper production.
The news can be interpreted with both bullish and bearish angles. From a bullish perspective, the strong, high-grade intersections and clear continuity in mineralisation support an upgraded resource estimate and attract attention from investors looking to benefit from a robust exploration program and promising regional portfolio. The introduction of diamond tail drilling and a series of upcoming studies further reinforces the company’s commitment to advancing its projects toward production. Conversely, bearish sentiment may arise from the inherent uncertainties in early-stage exploration results, including pending assay outcomes and the complexities associated with de-risking the geological model. Beginner traders should note that while the technical indicators are encouraging, the transition from exploration to commercially viable mining remains subject to further validation and comprehensive economic studies.