Prospect Extends Copper at Mumbezhi, Scoping Study Advances

Prospect Resources (ASX:PSC) has extended copper mineralisation beyond the known resource limits at its Mumbezhi project in Zambia. The company completed ten Phase 3 diamond extensional holes at the Nyungu Central deposit. Geological logging shows copper sulphide minerals outside the current Indicated and Inferred Resource boundaries.

One hole, NCDD026, returned 40 metres of visually mineralised chalcopyrite-chalcocite from 271 metres depth. Portable X-ray fluorescence over a 4.5-metre interval within that section estimated a copper grade of 0.5% Cu. All laboratory assays are pending, with initial results expected in the coming weeks. If those assays confirm the pXRF estimate, the resource envelope for Nyungu Central could expand substantially to the south. The company plans to extend drilling into the broader Nyungu Hub, including Nyungu West and Nyungu South, within the month. Two diamond rigs are currently active.

Aircore drilling has identified two new near-surface copper trends. Prospect completed 81 shallow vertical aircore holes over a 2-square-kilometre area west of the West Mwombezhi deposit in June. The program defined two parallel north-striking corridors of anomalous copper mineralisation, each extending over one kilometre and separated by 650 metres. Top intersections include 25 metres at 0.05% Cu from two metres and nine metres at 0.10% Cu from 17 metres. The grades are low. The scale and continuity of the corridors are enough to classify them as walk-up targets. Depth continuity testing is scheduled for the second half of 2026 to determine if grades improve at depth.