Prospect Resources Expands Mumbezhi Copper Resource by 63%, Raises A$45 Million for Phase 3 Drilling
Prospect Resources has significantly boosted its Mumbezhi Copper Project resource base by 63%, lifted contained copper by 50%, and secured A$45 million in fresh capital to fund an aggressive drilling campaign starting May 2026.
- Mumbezhi Mineral Resource Estimate grows to 174Mt at 0.50% CuEq
- Contained copper rises 50% to 772,000 tonnes with maiden gold and cobalt by-products
- Ownership in Mumbezhi increased to 90% after US$4.25 million acquisition
- West Mwombezhi drilling reveals continuous near-surface copper mineralisation
- A$45 million equity placement funds extensive Phase 3 drilling programme
Mumbezhi Resource Expansion and By-Product Upside
Prospect Resources Ltd (ASX:PSC) delivered a substantial upgrade to its flagship Mumbezhi Copper Project in Zambia, reporting a 63% increase in mineral resource tonnage to 174 million tonnes at 0.50% copper equivalent (CuEq). This translates to a 50% jump in contained copper, now estimated at 772,000 tonnes, underpinning the project’s growing scale and quality. The upgraded resource notably includes maiden Indicated and Inferred gold and cobalt components, introducing valuable by-product credits that could enhance future project economics.
More than 41% of the resource is now classified as Indicated, providing a stronger foundation for near-term development. The copper grades, averaging 0.44% Cu and 0.50% CuEq, align with those of world-class mines in the Zambian Copperbelt, a globally prolific copper-producing region. The updated Mineral Resource Estimate (MRE) was compiled by independent expert Steve Rose and reflects extensive Phase 2 drilling completed in 2025.
Gold Mineralisation Broadens at Nyungu Central
This expanded gold footprint was first highlighted in earlier metallurgical test work and has been confirmed through detailed re-assaying, which Prospect has been systematically undertaking to better define the multi-commodity potential of the deposit. The presence of gold and cobalt by-products may provide meaningful upside to project value and help reduce operating costs in any future mining scenario.
Ownership Boost and West Mwombezhi Exploration Progress
In a strategic move to consolidate control, Prospect increased its stake in Mumbezhi to 90% by acquiring an additional 5% interest for US$4.25 million from Global Development Cooperation Consulting Zambia Limited. This acquisition was completed in March 2026 following regulatory approvals, enhancing Prospect’s ability to direct project development.
Meanwhile, drilling at the nearby West Mwombezhi prospect has revealed a continuous near-surface copper sulphide system extending over more than 1 kilometre of strike, with significant intersections such as 8.9 metres at 0.78% copper. These results support the potential for a maiden resource estimate, expected in Q2 2026. Soil sampling further indicates copper anomalism extending beyond drilled areas, suggesting room for expansion. The company is also investigating gold distribution at West Mwombezhi, with re-assaying underway to evaluate by-product potential.
These developments build on Prospect’s earlier confirmation of continuous copper mineralisation at West Mwombezhi, highlighting the growing regional scale of Mumbezhi’s mineral system and the company’s systematic approach to exploration targeting.
Capital Raising and Upcoming Phase 3 Drilling
Prospect successfully raised approximately A$45 million through a strongly supported equity placement priced at A$0.38 per share, attracting both existing and new institutional investors. The company closed the quarter with a robust cash position of A$33.7 million and zero debt, positioning it well to execute an ambitious Phase 3 drilling programme.
Set to commence in early May 2026, Phase 3 drilling will focus on regional growth targets across the Mumbezhi licence area, including Chipimpa, Sharamba, and Kamafamba. This 50,000-metre campaign will leverage integrated geological, geochemical, and geophysical data to prioritise high-potential targets, aiming to convert resources and drive further expansion.
Metallurgical test work is also advancing, with samples from Kabikupa and Nyungu Central undergoing analysis to refine recovery estimates for copper, gold, and cobalt. Preliminary results are expected in May 2026, which will be critical for assessing the project’s economic viability given the growing importance of by-product credits.
Exploration Scale-Back at Omaruru Lithium Project
While Mumbezhi remains the company’s primary focus, Prospect has scaled back exploration at its Omaruru Lithium Project in Namibia, reducing expenditure to minimum holding levels. The company is exploring commercialisation options for Omaruru, having established a Technical Data Room and signed several non-disclosure agreements with interested parties.
This strategic pivot reflects Prospect’s prioritisation of its copper assets, where recent drilling success and resource upgrades signal stronger near-term development potential.
Financial Position and Outlook
Prospect’s quarterly cash flow report shows operating cash outflows of A$1.3 million and investing outflows of A$12.4 million, primarily related to development expenditure and a 12-month term deposit. Financing activities contributed A$36.9 million, reflecting the recent equity raise. The company estimates it has over 13 quarters of funding at current expenditure rates, providing a comfortable runway for exploration and development activities.
The company’s capital structure includes over 814 million ordinary shares on issue, with no debt liabilities, supporting financial flexibility.
Prospect’s Managing Director Sam Hosack emphasised the company’s confidence in Mumbezhi’s scale and multi-commodity potential, highlighting the upcoming Phase 3 drilling as a key catalyst. The recent boost to Mumbezhi stake and drilling plans complement the earlier confirmation of widespread gold mineralisation at Nyungu Central, reinforcing the project’s evolving value proposition.
Bottom Line?
Prospect Resources is well-capitalised and poised to leverage its expanded Mumbezhi resource base, but upcoming assay results and metallurgical tests will be pivotal in shaping the project’s economic outlook.
Questions in the middle?
- Will the pending gold assay results materially alter the Nyungu Central resource and economics?
- How will metallurgical recovery rates for gold and cobalt influence Mumbezhi’s development strategy?
- Can Phase 3 drilling confirm further resource growth across the broader Mumbezhi licence area?
