QMines Hits 44m at 1.03% Copper as Mt Chalmers Restart Advances

QMines reported diamond drilling at its Mt Chalmers copper-gold project returned 44 metres grading 1.03% copper, 0.15g/t gold and 2.3g/t silver from 103 metres on the eastern side of the deposit, as work toward restarting the historic mine advances.

QMines has drilled a wide, consistently mineralised copper interval on the eastern side of its Mt Chalmers deposit in central Queensland, reporting 44 metres at 1.03% copper, 0.15g/t gold and 2.3g/t silver from 103 metres downhole. The diamond hole landed while the company is working toward restarting the historic mine, and the combination of width, grade and shallow depth is the kind of result that tends to matter more for a redevelopment study than for a greenfield exploration story.

Why a 44-metre intercept reads differently at a restart project

At an early-stage prospect, a single thick hit is an invitation to drill more. At a project already pointed at production, the same hit does specific work: it tests whether the deposit continues in a direction the mine plan can reach, and whether the material there is good enough to sit near the front of a schedule rather than at the back.

The numbers here are worth unpacking for readers who do not spend their days reading drill tables. "44m at 1.03% copper" means the assayed interval ran 44 metres along the length of the hole and averaged a little over one percent copper by weight — roughly ten kilograms of contained copper per tonne of rock before any processing losses. The gold and silver credits, 0.15 grams per tonne and 2.3 grams per tonne respectively, are modest on their own but are recovered alongside the copper in a concentrate and therefore reduce the effective cost of producing each pound of copper. Volcanogenic massive sulphide systems of the Mt Chalmers type are typically polymetallic in exactly this way.

The depth matters as much as the grade. Mineralisation logged from 103 metres, running to roughly 147 metres downhole on the reported interval, sits in the shallow part of the profile — the zone most amenable to open-pit extraction, where strip ratios are lowest and capital intensity is smallest. Shallow tonnes are the tonnes that pay back a restart. Intervals sitting several hundred metres down are a different conversation involving underground development and a much longer payback.

The eastern side is the part of the question that was open

QMines flagged the intersection as being on the eastern side of the deposit, and that detail carries the news. Historic mining at Mt Chalmers, which produced intermittently over the last century, concentrated on the parts of the orebody that were easiest to find and reach with the tools of the day. The flanks and extensions are where modern drilling adds tonnes, because they were never fully tested rather than because they were tested and found wanting.

A broad intercept on an eastern flank does three things for a company in QMines' position. It supports the case that the resource extends laterally beyond the historic workings. It gives the resource geologists real data in a domain that may have been carried on sparse drilling or on inference. And it potentially shifts material from the inferred category — the least confident classification, which cannot be used in a definitive mine plan — toward indicated or measured, which can. Converting resource confidence is unglamorous work, but it is what unlocks a bankable study and, with it, project finance.

The result was reported by Stockhead Resources, which framed it alongside continuing progress on the restart itself.

What a result like this does to restart economics

A restart study is an exercise in arithmetic over time: how much ore, at what grade, delivered to a mill of what size, over how many years, for what upfront capital. Every one of those inputs moves when the resource moves.

The most direct lever a grade like 1.03% copper pulls is head grade. Feed a plant richer rock and each tonne milled yields more saleable metal, which lifts revenue without lifting throughput, the largest driver of both capital and operating cost. If the eastern zone proves continuous at similar widths, it can also extend mine life — the variable that most reliably determines whether financiers treat a project as a mine or as an option on one. Lenders are far more comfortable with a longer, steadier production profile than with a short, high-grade campaign that leaves little margin for a copper price wobble.

There is a sequencing benefit too. Shallow, wide mineralisation close to existing infrastructure and historic workings can be scheduled early, which pulls cash flow forward and shortens the period during which the company is spending without earning. For a junior developer, the gap between first capital drawn and first concentrate shipped is the most dangerous stretch of the whole enterprise.

None of this is automatic. One hole does not make a domain, and the company has not published revised resource figures, recovery assumptions or updated study outputs off the back of this intercept. The honest reading is that the result is supportive of the direction of travel, not a re-rating event in itself.

The funding question sits behind everything

Small-cap developers move through a familiar sequence: drill, update the resource, update the study, then raise the money. Each step is meant to lower the cost of the next. A stronger resource narrative widens the menu of funding options beyond straight equity dilution to include debt, streaming arrangements on the gold and silver credits, or an offtake-linked prepayment from a trader or smelter wanting concentrate.

Copper's structural demand case — grid rebuilding, electrification, data centre power infrastructure — has kept strategic capital interested in advanced-stage projects in low-risk jurisdictions, and central Queensland qualifies on the jurisdiction test. Brownfield restarts hold particular appeal because permitting pathways and disturbed ground are already established, which can compress timelines against a greenfield build.

The wider market backdrop has been constructive for risk assets. At the most recent close on Friday, 25 September 2026, the S&P 500 tracker SPY finished at $771.35, up 0.54% on the day, with the Nasdaq 100 proxy QQQ at $744.50, up 0.46%, and the Dow 30 fund DIA at $517.49, up 0.94%. Broad appetite for equities does not put money in a junior miner's treasury by itself, but raising capital is materially easier in a firm tape than a falling one.

What to watch from here

Three things will tell investors whether this intercept mattered. First, follow-up assays from the eastern zone: does the width hold across adjacent holes, or is this a single fat lens? Second, a resource statement — the tonnage, the grade, and crucially the share carried in indicated or measured rather than inferred. Third, any restart study revision that translates the geology into throughput, mine life, capital cost and operating cost.

Until those arrive, the result stands as what it is: a broad, shallow, well-graded copper interval in the part of the deposit where QMines most needed one, at a point in the project's life when resource additions convert directly into schedule and financing leverage rather than merely into future drilling targets.

Key facts

• Drill intercept: 44m at 1.03% copper, 0.15g/t gold, 2.3g/t silver
• Depth from: 103 metres downhole, eastern side of the deposit
• Project: Mt Chalmers copper-gold project, central Queensland; restart advancing
• Market backdrop: SPY closed at $771.35, +0.54%, as of Fri 25 Sep 2026 20:00 GMT

Frequently asked questions

What did QMines' latest drilling at Mt Chalmers return?

Diamond drilling returned 44 metres grading 1.03% copper, 0.15 grams per tonne gold and 2.3 grams per tonne silver, starting from 103 metres downhole. The intersection was made on the eastern side of the Mt Chalmers deposit in central Queensland, an area that sits beyond the focus of historic mining at the project.

Why does the eastern side of the deposit matter?

Historic mining at Mt Chalmers concentrated on the most accessible parts of the orebody, leaving the flanks comparatively under-tested. A broad intercept on the eastern side suggests mineralisation continues laterally and gives geologists fresh data in a domain that may previously have been carried on limited drilling, which can improve resource confidence.

Is 1.03% copper a good grade?

It means roughly ten kilograms of contained copper per tonne of rock before processing losses. For an open-pit-style copper project, a grade above one percent over a 44-metre width is a substantial interval, and the accompanying gold and silver are recovered in concentrate, which lowers the effective cost of producing each pound of copper.

Does this result change the Mt Chalmers restart economics?

Not on its own. QMines has not published revised resource figures or updated study outputs tied to this intercept. A result like this supports the case for better head grade and potentially longer mine life, but those changes only become real once they appear in a formal resource statement and a revised restart study.

Why is the depth of the intercept significant?

Mineralisation logged from 103 metres sits in the shallow part of the deposit profile, the zone most suited to open-pit mining. Shallow ore carries lower strip ratios and lower capital intensity than material several hundred metres down, which would require underground development and a considerably longer payback period.

What should investors watch next?

Three markers: follow-up assays showing whether the width holds across adjacent holes on the eastern flank; an updated resource statement, especially the share classified as indicated or measured rather than inferred; and any revision to the restart study covering throughput, mine life, capital cost and operating cost.

Sources

• QMines punches into broad copper zone as Mt Chalmers restart advances — Stockhead Resources