Key Highlights

  • Solstice has reported further wide copper-gold intercepts from four diamond tails at its Nanadie project near Sandstone.
  • Hole NANRCD002A returned 34.0 metres at 1.53 per cent copper and 0.40 grams per tonne gold from 625 metres.
  • Assays are pending from a further 14 diamond holes and more than 50 RC holes.
  • Three drill rigs will continue at Nanadie and the Stark Prospect before a Christmas and New Year break.

Solstice Minerals Limited (ASX:SLS) has reported further significant assay results from ongoing drilling at its 100 per cent owned Nanadie copper-gold project, located north-west of Sandstone in the Western Australian Goldfields. The results, dated 10 November 2026, extend mineralisation beyond the boundary of the current Mineral Resource Estimate and add to the company's view that the deposit has greater Volume and grade than the resource currently reflects.

Diamond Drilling Extends Mineralisation at Depth

The new results come from step-down diamond tails designed to extend earlier reverse circulation pre-collar holes to deeper parts of the system. Hole NANRCD002A, a wedge hole that was drilled after its parent hole was blocked at the end of the hole, returned 59.2 metres at 0.54 per cent copper and 0.15 grams per tonne gold from 557.4 metres, including 9.1 metres at 1.26 per cent copper. The same hole returned 34.0 metres at 1.53 per cent copper and 0.40 grams per tonne gold from 625 metres, including 22.9 metres at 2.13 per cent copper.

Other diamond tails also returned broad zones. Hole NANRCD045, in the south of the deposit, returned 43.0 metres at 1.16 per cent copper and 0.32 grams per tonne gold from 307 metres. Hole NANRCD042 added new zones in the central part of the deposit, including 43 metres at 0.76 per cent copper and 0.32 grams per tonne gold from 382 metres. The company says these intercepts are well beyond the current resource boundary, which is a feature that drives its expectation of resource growth.

Reverse Circulation Results and Mineralised Footprint

Reverse circulation drilling has also contributed to the update. Pre-collar hole NANRC075 returned multiple intervals, including 45 metres at 0.56 per cent copper and 0.19 grams per tonne gold from 229 metres to the end of the hole. The company uses these results to argue that the mineralised footprint of the Nanadie system is extensive, although intervals from Reverse Circulation Drilling are typically used to define broader zones rather than precise grades.

Mineralisation is described as disseminated and veinlet-style copper sulphides within deformed and altered mafic intrusive rocks, including gabbro and dolerite. The company notes that some zones are separated by later felsic and mafic dykes that post-date mineralisation. Shorter intervals within wide zones may therefore vary considerably in grade, and the drilling results are not yet a resource estimate.

Program Status and Pending Assays

Assays are still pending from a further 14 diamond holes and more than 50 reverse circulation holes. Three rigs will continue operating at Nanadie and the nearby Stark Prospect before a short Christmas and New Year break, allowing laboratory results to be returned and compiled ahead of a drilling phase in 2027. The company expects that phase to advance the deposit towards an updated Mineral Resource Estimate. The first reverse circulation rig has also begun drilling at Stark, which the company describes as its first drilling at that prospect.

Solstice describes Nanadie as sitting beneath shallow cover and weathering on a granted Mining lease. The company says it has now drill tested more than 1.5 kilometres of strike length in the mineralised system, although it has not yet defined an updated resource across that distance.

Risks and Matters to Watch

The results remain exploration data. Wide intervals from partially tested zones do not confirm economic grades or continuity, and an updated resource estimate will depend on how assays from the pending holes compare with existing data. Drilling costs, the timing of the 2027 program and metallurgical and processing work are also outstanding. The company's statements about the scale and potential of the deposit are based on its interpretation of current results.

Final Word

Solstice's latest update adds a further set of wide copper-gold intersections to a project that the company is working to grow. The key measures will be the 14 diamond and more than 50 reverse circulation assays still outstanding, and whether the deeper and eastern-margin zones maintain their grades as drilling continues. Those results, and the timing of the next resource update, will shape how the Nanadie project develops over the coming year.