Prospect Resources (ASX:PSC) has expanded the exploration potential of its Mumbezhi project in Zambia after a tenement-wide airborne electromagnetic (AEM) survey identified 11 strong conductors, the company said in its latest technical update. The results build on the project’s earlier datasets and mark one of the most significant geophysical steps forward for the licence to date.
The most notable anomaly is the newly defined 2.5km Chipimpa cluster, which the company said shows a shape, conductivity and strike characteristics similar to those of Nyungu Central — the most advanced mineralised zone at Mumbezhi. Prospect said the Chipimpa response “mirrors the distinctive” Nyungu signature, making it a high-priority target for upcoming exploration.
The Australian junior miner said the integration of geochemical and geophysical methods has “proven highly successful” on the licence, with broader programmes extending the Sharamba and Kamafamba prospect footprints and defining a new anomaly at Kamafamba West. Fieldwork has included soil sampling across the full licence area — with 65% of assays still pending — termite-hill geochemistry and ground-based IP surveys. Prospect said these datasets collectively support the geophysical results and refine regional targeting.
Phase 2 drilling at Mumbezhi is now complete, with around 18,200m of combined diamond and aircore drilling completed during 2025. The company is also assaying more than 1,200 historical pulp samples from Nyungu Central for gold. Full results are expected through January 2026, after which Prospect intends to finalise an updated Mineral Resource estimate for Q12026.
Managing Director and CEO Sam Hosack welcomed the geophysical outcomes. “We are incredibly pleased with these outcomes from our tenement-wide AEM surveying and we now appreciate why they were such a priority for our Technical partners FQM,” he said. “The delivery of 11 strong EM conductors is significant both in terms of defining exciting new regional exploration targets and in validating previous electromagnetic (EM) interpretations from our historical data sets.”
Hosack added that the expanded drilling and assay pipeline will underpin the next resource update. “With Phase 2 drilling now complete, we look forward to further drilling result updates once the backlog of assays are returned and feel confident that the integration of all this data and information will compellingly inform an update to the existing copper resource estimates for Mumbezhi during Q12026.”
He said Chipimpa had emerged as a priority exploration zone. “Thinking bigger, the impressive newly defined Chipimpa cluster in the southeast of the licence represents an unexplored area of immediate interest to Prospect. Chipimpa strikes over 2.5km and possesses a shape and conductivity similar to Nyungu Central, becoming a high priority for our upcoming exploration.”
Hosack said ongoing regional work — including termite-hill sampling, IP surveys and soil geochemistry — “is expected to strongly complement the receipt of the full and final results from the highly informative AEM geophysical interpretation.”
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