Prospect Resources Limited (ASX:PSC) has reported high-grade copper intercepts from an extensional drill hole on the eastern flank of its Nyungu Central deposit at the Mumbezhi Copper Project in north-west Zambia, with hole NCDD052 returning 24m @ 0.78% Cu from 276m and 20m @ 0.91% Cu from 375m, in positions where no copper Mineral Resources are presently defined.

Key Points

  • Extensional hole NCDD052 returned 24m @ 0.78% Cu from 276m and 20m @ 0.91% Cu from 375m on the eastern flank of Nyungu Central, outside the existing Mineral Resource.
  • Infill drilling continues to deliver significant intersections, including 39m @ 0.64% Cu from 127m (NCDD046) and 37m @ 0.52% Cu from 228m (NCDD042).
  • Forty-five Phase 3 diamond holes have been completed at Nyungu Central for 14,128m, with assays pending for ten infill holes and fifteen extensional holes.
  • Four diamond drill rigs are currently operating on site, with two at Nyungu Central and two completing regional exploration at Kamafamba and Chipimpa.
  • The Mumbezhi Scoping Study remains on track for completion and release in Q1 2027, preceded by Mineral Resource updates for Nyungu Central and Kabikupa.

Eastern Flank Step-Out Drilling at Nyungu Central

Hole NCDD052 was initially designed to target copper mineralisation up dip from existing holes on cross section 8630150mN in the southern part of the Nyungu Central deposit. The hole first returned an intersection of 32.8m @ 0.54% Cu from 28m before being extended to test airborne electromagnetic anomalies at further depth. The two subsequent high-grade intercepts at 276m and 375m depth are located in a geometry and position the company said closely resembles a recently discovered southeastern lobe associated with similar anomalies, located approximately 450m southeast of the new intersections. The mineralisation remains open in multiple directions, according to the filing.

Re-Entry of Historical Hole NCDD003 Extends Known Mineralisation

A re-entry of hole NCDD003, initially completed by Prospect in 2024, returned 12.7m @ 0.67% Cu, including 0.09g/t Au and 0.03% Co, from 511m after transecting a mafic intrusive unit. According to the filing, this result indicates that orebody continuity is open at depth to the west and up-plunge to the south towards surface. Prospect disclosed it has re-allocated extensional diamond drilling metres from the Phase 3 programme to follow up the emerging eastern zone, with pending assays from holes NCDD056, NCDD057, NYDD055, NYDD056 and NCDD040 also expected to test the extent and continuity of this lightly drilled area.

Infill Drilling Delivers Multiple Strong Copper Intersections

Infill drilling across several sections of Nyungu Central continued to return significant copper grades. Hole NCDD042 produced 37m @ 0.52% Cu from 228m and 8.0m @ 0.50% Cu from 217m, while NCDD044 returned 9.2m @ 0.81% Cu from 467m and 7.4m @ 0.73% Cu from 133m. On section 8629700mN, where no historical work had previously taken place, holes NCDD043 and NCDD046 both proved well mineralised, with NCDD043 returning 30m @ 0.53% Cu from 90m and NCDD046 returning 38.7m @ 0.64% Cu from 127m. The company said these results will help refine interpretations for the Nyungu Central Mineral Resource in that area.