Key Highlights

  • The 18-hole, 1,355m aircore program at Limestone Bore returned high-grade copper, including 32m at 1.91% Cu from 27m.
  • Two copper styles were identified: shallow supergene copper and deeper silver-bearing copper linked to carbonaceous structures.
  • Limestone Bore sits more than 7km from other known mineralisation and is largely concealed beneath transported sediments.
  • Assay results for the Blockley, Ward and Mueller prospects remain pending, and drilling resumes at Neds Creek this month.

BOA Resources Limited (ASX:BOA) has reported further high-grade copper intersections from maiden aircore drilling at the Limestone Bore prospect, within its 100% owned Neds Creek Copper Project in Western Australia. The announcement dated 11 November 2026 follows recent drilling success at the Ricci Lee and Rooneys prospects.

The copper intersections

The 18-hole program totalled 1,355m. Hole 26NCAC0076 returned 32m at 1.91% copper from 27m, including 18m at 3.03% copper. Hole 26NCAC0069 returned 29m at 1.73% copper from 3m, including 9m at 4.77% copper, and a separate 13m at 0.88% copper from 52m. Hole 26NCAC0071 returned 10m at 1.83% copper from 67m, including 3m at 4.62% copper.

The company identified two styles of mineralisation. The shallow zone is copper-rich supergene mineralisation, while the deeper zone is silver-bearing copper associated with carbonaceous structures, which BOA compares with the mineralisation at Ricci Lee and Rooneys.

Location and blind discovery potential

Limestone Bore is more than 7km from other known mineralisation and is largely concealed beneath transported sediments. BOA said the result highlights the potential for further blind discoveries beyond the project’s known prospects.

The results add a priority target to a growing pipeline at Neds Creek, but the prospect has only had one maiden drilling program so far, and the continuity of the mineralised structures is not yet confirmed.

Pending results and the next drilling phase

Assay results from the Blockley, Ward and Mueller prospects are still pending. The company plans follow-up drilling at Limestone Bore to test the interpreted structures and the continuity of the mineralisation.

BOA plans to recommence drilling at Neds Creek this month, testing depth extensions at Ricci Lee and additional targets at Rooneys. Aircore results are generally indicative and will need follow-up drilling to define true widths and grade continuity.

Final Word

The Limestone Bore results add to the copper picture at Neds Creek and point to a second structural system beyond the known prospects. The pending Blockley, Ward and Mueller assays and the follow-up drilling at Limestone Bore will show whether the copper mineralisation can be traced into a larger zone.