Boa Resources Limited (ASX:BOA): What Does Limestone Bore Drilling Reveal About Neds Creek?

Aditi Sarkar

11 November 2026 08:00 PM AEDT

Boa Resources Limited (ASX:BOA): What Does Limestone Bore Drilling Reveal About Neds Creek?

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Highlights

An 18-hole maiden aircore programme at Limestone Bore covered 1,355 metres.
Reported copper intervals include 32 metres at 1.91% copper from 27 metres.
Two interpreted mineralised structural trends require further geological testing.
Assays from Blockley, Ward and Mueller remain relevant to target ranking.

Boa Resources Limited (ASX:BOA) explores copper targets in Western Australia, principally through its Neds Creek project in the Murchison region. Its November 2026 Limestone Bore update concerns maiden aircore drilling at a covered prospect separated from other known areas of copper mineralisation. The results expand the geological information available for planning further exploration, but do not establish the size or economic viability of any deposit.

Maiden Copper Results at Limestone Bore

The company reported 18 aircore holes totalling 1,355 metres at Limestone Bore. A significant intersection was 32 metres at 1.91% copper from 27 metres, including 18 metres at 3.03% copper. Another interval measured 29 metres at 1.73% copper from 3 metres, including 9 metres at 4.77% copper. A deeper result included 13 metres at 0.88% copper from 52 metres. These figures describe sampled drilling intervals, not mineral resources or production.

For Boa Resources Limited (ASX:BOA), the intervals provide evidence of copper encountered at several depths during the initial programme. Aircore drilling is used to screen geological targets and typically requires follow-up work before detailed geometry can be established. The reported lengths should not be interpreted as true widths without appropriate geological confirmation.

Structural Trends and Covered Ground

Limestone Bore lies more than seven kilometres west of previously identified copper mineralisation elsewhere at Neds Creek. Transported material at surface can obscure the underlying geology, making drilling important for evaluating concealed targets. Preliminary interpretation identifies two different structural trends associated with the reported copper results. Their orientations and continuity remain subjects for additional drilling and interpretation.

Boa Resources Limited (ASX:BOA) must determine whether the separate intersections relate to continuous mineralised structures or isolated zones. The difference matters because isolated high grades do not necessarily create sufficient tonnes for a development case. Identifying the extent of each trend would also help determine the most informative locations for deeper holes.

Other Prospects and Exploration Priorities

The reported campaign forms part of a wider Neds Creek exploration programme. Assays from Blockley, Ward and Mueller were still outstanding in the November update. Results from those locations may assist with comparison of prospect-scale geology and prioritisation of subsequent expenditure. They should not be treated as discoveries before their analytical results have been received and assessed.

Boa Resources Limited (ASX:BOA) indicated that follow-up work at Limestone Bore was being prioritised, with additional drilling contemplated at other project targets. Planned Reverse Circulation Drilling could test mineralisation at greater depth than the initial aircore programme, but the scope and results of such work cannot be assumed.

Funding Needs and Geological Uncertainty

The next stage requires technical interpretation, drilling access, contractor availability and funding. Each additional programme can refine a target, but it also increases exploration expenditure before a project has demonstrated commercial returns. The November intersections do not provide sufficient information to calculate a mineable inventory or to establish processing characteristics.

For Boa Resources Limited (ASX:BOA), meaningful progress will depend on repeatability of grades, continuity between holes and clarity on the host rocks and structures. Future announcements should distinguish completed drilling from proposed programmes, and report the basis of any eventual mineral resource estimate.

Key Insights

Boa Resources has reported copper intersections at a new part of Neds Creek, providing targets for further drilling. The main uncertainties concern the continuity, dimensions and metallurgical character of mineralisation, alongside the funding required for additional work. Exploration results should not be confused with an established mineral resource.

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