FireFly's 6%+ CuEq Drill Results Tighten the Window to August's Green Bay Study

August 2026 is the next real catalyst for Green Bay

FireFly has now set a clear near-term milestone for the project, with a August 2026 target for the updated resource and PEA/Scoping Study on Green Bay. That makes August the next hard catalyst investors can calendar.

The latest drilling gives that setup fresh relevance. FireFly says results include approximately 30 to 50 metres at grades ranging from about 4% to 6% copper equivalent inside a project that also supports early, high-margin production. The key point is not that drill intercepts prove economics on their own. It is that better drilling can make the upcoming study more credible if the high-grade core remains continuous and well supported.

The latest assays are strong, but the right read is specific: FireFly is tightening confidence in a high-grade core, not delivering a finished mine plan. The Core Zone is where upper volcanogenic massive sulphide (VMS) lenses meet the footwall stringer-style copper zone, and the newest results reinforce that area's grade and continuity.

Key intersections include 42.0 m at 6.1% CuEq, including 9.8 m at 16.5% CuEq and 51.5 m at 4.9% CuEq, including 17.0 m at 9.1% CuEq. Those results point to a high-grade core inside a larger mineralised system. If infill drilling continues to support that geometry, the study should have a stronger high-grade nucleus to build around.

Why the updated study matters more than another grade headline

The next step is straightforward: the new drill data is being fed into an updated mineral resource estimate, which will underpin the economic study. That is where the real test sits. Investors do not need another isolated grade headline; they need evidence that the high-grade material can support early, high-margin production in a practical mine sequence.

FireFly says the Core Zone contains nearly 20 million tonnes grading close to 4% copper equivalent. That scale matters because a denser, higher-confidence data set can improve mine-plan confidence. In simple terms, better drilling can reduce uncertainty around what has to be mined, how much dilution may be involved, and how much high-grade material could be available in the early years.

Funding and drilling momentum keep the August window open

This is also not a project running out of time or capital ahead of the study. FireFly ended the June quarter with approximately A$196.4 million in cash and liquid investments and roughly 9.2 quarters of funding at current expenditure rates. Management has also said eight rigs continue to run at Green Bay, so the data set is still getting denser as August approaches.

What to watch in the August release

The clean bull case is simple: FireFly is already incorporating the newest intersections into an updated mineral resource estimate for an upcoming economic study. If that study arrives on time and shows the high-grade Core Zone can support early, high-margin production, the project starts to look more like a development case investors can underwrite.

The main risk is not weak drill grades. It is a slip in timing, or a study that cannot turn promising mineralisation into a credible path from ore in the ground to cash flow.