Prospect Resources has reported thick, high-grade copper intercepts beyond the existing resource at Nyungu Central, underscoring the deposit's growth potential within the Mumbezhi Copper Project in Zambia.
- 44m at 0.60% Cu and 17m at 0.57% Cu intercepts extend mineralisation southeast
- New drill results lie outside current Mineral Resource Estimate boundary
- Phase 3 drilling ongoing with six priority assay results pending
- Exploration expanding to Nyungu West and regional targets
- Infill drilling to upgrade resource confidence slated for late July
High-Grade Copper Intercepts Expand Nyungu Central
Prospect Resources (ASX:PSC) has unveiled compelling new drill results from its flagship Nyungu Central deposit within the Mumbezhi Copper Project in Zambia. Two recent step-out diamond holes returned thick, high-grade copper intersections; 44.0 metres at 0.60% Cu from 270 metres and 17.0 metres at 0.57% Cu from 186 metres; extending mineralisation well beyond the existing May 2026 Mineral Resource Estimate (MRE) boundary. These intercepts, located at the deposit’s southern end, remain open to the southeast, signalling further growth potential.
Strategic Drilling Targets Shallow, High-Value Zones
The Phase 3 diamond drilling campaign, focused on high-growth zones at the southern edges of Nyungu Central, is delivering results that enhance both the scale and economic profile of the deposit. Notably, the new intersections come from relatively shallow, up-plunge positions, where copper mineralisation approaches the surface before being truncated by a fault system. Prospect’s CEO Sam Hosack emphasised that these wide, high-grade intercepts validate the company’s exploration model and hint at a latent potential across the broader Mumbezhi tenure.
Ongoing Assays and Expanding Exploration Footprint
To date, thirteen Phase 3 diamond holes have been completed at Nyungu Central, totaling over 4,000 metres, with assays pending for six holes exhibiting visible copper sulphides. The company has also commenced exploratory drilling at Nyungu West and plans to test a large geophysical conductor near Nyungu South and other regional targets such as Kamafamba and Chipimpa later this quarter. Concurrently, a 6,000-metre infill drilling programme is set to start in late July to upgrade Inferred Mineral Resources to Indicated, supporting upcoming scoping and feasibility studies.
Mumbezhi Project Positioned for Large-Scale Open Pit Development
The Mumbezhi Copper Project, located in the prolific Central African Copperbelt, already hosts a substantial resource base, with the May 2026 MRE reporting 208.1 million tonnes at 0.42% copper equivalent. The new drill results bolster the prospect of expanding this footprint, particularly in near-surface zones amenable to open-pit mining. Metallurgical testing has also confirmed the potential for producing high-grade copper concentrates with excellent recoveries, underpinning the economic viability of the project.
Technical Rigor and Ongoing Validation
The drilling and sampling adhere to rigorous industry standards, with comprehensive geological logging, quality control measures including certified reference materials, and independent verification by qualified Competent Persons. Prospect Resources continues to leverage geophysical data, including airborne electromagnetic anomalies, to guide targeting and validate mineralisation continuity. These disciplined approaches provide a solid foundation for resource upgrades and subsequent development planning.
Bottom Line?
Prospect Resources’ latest drilling results at Nyungu Central reinforce the deposit’s growth trajectory, but the full extent of new mineralisation awaits pending assays and further infill drilling.
Questions in the middle?
- Will pending assay results confirm the continuity and grade of new mineralisation beyond current boundaries?
- How will expanding exploration at Nyungu West and regional targets impact the overall project scale?
- What timelines and milestones can be expected for the upcoming scoping and feasibility studies?