Highlights

  • About 2,926m was drilled across 13 holes at three projects.
  • Diamond drilling at the Mandacaru and Campo Grande lithium projects in Brazil totalled about 2,236m, with assays pending.
  • Drilling began at the Cinto Copper Project in Peru, targeting porphyry mineralisation.
  • Mobilisation started for a 5,000m diamond program at the Cucho Copper Project, with 34 holes permitted.

Solis Minerals Limited (ASX:SLM) has released its quarterly activities report for the period ended 30 September 2026. The company began drilling across its lithium projects in Brazil and its copper projects in Peru, with about 2,926m drilled across 13 holes at three projects by the report date.

Brazil Lithium Drilling

At Mandacaru, seven diamond holes totalling 1,454m were completed, testing an LCT anomaly corridor of about 800m. Pegmatites were intersected at around 30m to 40m depth, broadly as the geological model predicted. At Campo Grande, four holes totalling 782m tested part of a lithium corridor defined by earlier work, and a new pegmatite swarm with three outcrop zones was mapped.

The Brazil Lithium Project covers about 93,000 hectares in the Araçuaí–Salinas Lithium Valley in Minas Gerais. Assays are pending for both projects, and more than 170 soil samples have been collected across five regional areas.

Peru Copper Projects

At the Cinto Copper Project, an initial five-hole, 2,500m program has started, following surface samples of up to 8.7% copper. The first hole was completed at 608.9m, testing the down-dip extension of a mineralised hydrothermal breccia and its possible link to a deeper porphyry. Eleven drill pads are permitted.

After the quarter, mobilisation began for a 5,000m diamond drilling program at the Cucho Copper Project, where Solis has the right to earn up to 100%. The program will test three target zones: a south-western molybdenum corridor, a northern stockwork zone and an eastern intrusive target.

Corporate and Next Steps

Cash stood at about A$4.0 million at 30 September 2026. Daniel Coletta was appointed Company Secretary effective 14 October 2026. CEO Mitch Thomas said, "The September quarter marked an important step in advancing our lithium and copper portfolio."

Next steps include receiving and interpreting assays from Mandacaru, Campo Grande and Cinto, assaying the regional soil samples, starting drilling at Cucho and completing the transfer of the Brazil lithium concessions. Mr Thomas added, "We look forward to providing updates as drilling progresses and assay results become available."

Key Takeaways

  • Solis has started drilling across both its Brazilian lithium and Peruvian copper portfolios.
  • Pegmatites were intersected at Mandacaru broadly as predicted, with assays pending.
  • Drilling at Cinto and Cucho targets porphyry copper systems.
  • Assay results over the coming months will guide follow-up drilling decisions.