Prospect Resources Mumbezhi Copper Project Delivers 772,000 Tonnes Resource

Prospect Resources Delivers Outstanding Quarter with 63% Resource Expansion at Flagship Mumbezhi Copper Project

Prospect Resources Limited (ASX: PSC) has released its quarterly activities report for the March 2026 quarter, showcasing remarkable progress at its flagship Prospect Resources Mumbezhi Copper Project in Zambia. According to the report, the company delivered a 63% increase in tonnage and 50% increase in contained copper through an updated Mineral Resource Estimate (MRE), establishing the project as a significant copper development story in the world-class Zambian Copperbelt.

Major Resource Expansion Transforms Mumbezhi's Scale

The updated MRE represents a watershed moment for Prospect Resources, with the Prospect Resources Mumbezhi Copper Project now hosting 174 million tonnes at 0.44% Cu (0.50% CuEq) for 772,000 tonnes of contained copper. This dramatic expansion from the March 2025 estimate establishes Mumbezhi as a tier-one copper asset.

Key Resource Metrics

The resource upgrade demonstrates exceptional geological confidence, with over 41% now classified as Indicated, providing a robust foundation for near-term development studies.

"I am very pleased with the strong progress we've delivered at Mumbezhi during the March quarter, underpinned by a substantial upgrade to the Mumbezhi MRE, increasing total contained copper by 50% to approximately 772kt and delivering a meaningful uplift in Indicated Resources." – Sam Hosack, Managing Director and CEO

What Makes the Gold Discovery So Significant?

Perhaps the quarter's most exciting development was the widespread identification of gold mineralisation at Nyungu Central. Furthermore, through systematic re-assaying of existing drill samples, Prospect has unlocked substantial potential by-product value.

Significant Gold Intersections

The company reported impressive results from 55 of 64 holes re-tested to date:

The maiden gold resource now totals 127,100 ounces across Nyungu Central. Moreover, receipt of results from an additional 26 re-assayed holes is expected in late April. All new gold results will be incorporated into an updated MRE expected during Q2 2026.

West Mwombezhi Reveals Shallow Copper Potential

The quarterly report also saw completion of assay results from diamond drilling at West Mwombezhi. In addition, the drilling revealed continuous near-surface copper sulphide mineralisation extending over more than 1km of strike length. This discovery opens another front for resource growth at the Prospect Resources Mumbezhi Copper Project.

Notable West Mwombezhi Intersections

• 8.9m @ 0.78% Cu from 54.6m, including 7.0m @ 0.93% Cu (MWDD004)
• 6.7m @ 0.57% Cu from 86.0m, including 4.2m @ 0.75% Cu (MWDD009)
• 5.8m @ 0.44% Cu from 145.0m (MWDD001)
• 5.0m @ 0.47% Cu from 85.0m, including 2.7m @ 0.78% Cu (MWDD002)

Soil sampling has outlined strong copper anomalism extending 1km south of existing drilling. Consequently, this supports potential for additional mineralised extensions. A maiden MRE for West Mwombezhi is expected in Q2 2026.

Understanding Copper Equivalent (CuEq) – Why This Metric Matters

Copper Equivalent is a critical metric for multi-commodity projects like Mumbezhi. Specifically, it expresses the total economic value of all metals as if they were copper. The report states that Prospect calculates CuEq using conservative pricing assumptions:

• Copper: US$11,500/tonne
• Gold: US$3,500/ounce
• Cobalt: US$40,000/tonne

The 0.50% CuEq grade across Mumbezhi demonstrates how by-product gold and cobalt meaningfully enhance the project's economics. This premium reflects the additional revenue streams that can significantly improve project returns and reduce mining costs per pound of copper produced.

CuEq grades help investors compare multi-metal projects on an equivalent basis. Furthermore, they provide understanding of the total value potential beyond the primary commodity. For mining projects, higher CuEq grades typically indicate more valuable ore that can support higher margins and longer mine life.

Strategic Ownership Increase and Strong Financial Position

According to the quarterly activities report, Prospect strengthened its position during the quarter. Notably, they acquired an additional 5% interest in Mumbezhi for US$4.25 million, increasing ownership to 90%. This move demonstrates management's confidence in the project's value and consolidates control over this world-class asset.

Robust Financial Foundation

The company successfully raised approximately A$45 million through an equity placement, ending the quarter with:

• A$33.7 million in cash (A$38.7 million including term deposits)
• Zero debt
• Strong institutional support from both existing and new investors

This financial strength provides over 13 quarters of funding at current expenditure levels. As a result, it ensures adequate capital for the ambitious exploration and development programmes ahead.

How Will the Phase 3 Drilling Programme Drive Further Growth?

Looking ahead, the report indicates Prospect is well-positioned to advance value through its upcoming Phase 3 drilling programme. The programme is set to commence in early May 2026 and will focus on several key targets.

Regional Growth Targets

• Chipimpa
• Sharamba
• Nyungu South
• Kamafamba

The company plans an aggressive 50,000-metre drilling programme over 2026-2027. Furthermore, this targets systematic regional exploration across multiple high-priority electromagnetic geophysical targets exhibiting similar characteristics to Nyungu Central.

Near-Term Catalysts

• Updated Nyungu Central MRE incorporating additional gold results (Q2 2026)
• West Mwombezhi maiden MRE (Q2 2026)
• Metallurgical test results for gold and cobalt recoveries (May 2026)
• Phase 3 drilling commencement (early May 2026)

Investment Thesis: A Tier-One Copper Development Story

The quarterly activities report positions Prospect Resources as one of the most compelling copper development stories in the market. Consequently, it offers investors exposure to multiple value drivers across the Prospect Resources Mumbezhi Copper Project.

Scale and Quality

• 772,000 tonnes of contained copper in a tier-one jurisdiction
• Grades directly comparable to world-class operating mines in the Zambian Copperbelt
• 41% Indicated resources providing development confidence

Multi-Commodity Value

• 127,100 ounces of contained gold providing by-product credits
• 38,600 tonnes of contained cobalt exposure to battery metals demand
• Meaningful potential to enhance project economics and reduce copper production costs

Growth Pipeline

• Multiple regional targets with similar geological signatures
• Extensive drilling programme funded through 2027
• Potential for continued resource expansion across a 356 square kilometre land package

Strategic Location

• Located in the globally significant Zambian Copperbelt
• Proximity to major operating mines including First Quantum's Sentinel operation
• Established infrastructure and mining expertise in the region

Why Should Investors Follow Prospect Resources?

According to the quarterly report, Prospect Resources represents a rare opportunity to gain exposure to a large-scale copper development project. Moreover, it's located in one of the world's premier copper districts. The company's systematic approach to exploration, combined with strong financial backing and technical expertise, positions it to deliver substantial value.

Key Differentiators

With multiple catalysts approaching in Q2 2026 and a fully-funded exploration programme extending through 2027, Prospect Resources offers investors leveraged exposure. This includes both copper price appreciation and significant resource growth potential.

"Prospect Resources has established Mumbezhi as a tier-one copper asset with exceptional scale, grade, and growth potential. With 90% ownership, strong financial backing, and multiple value catalysts approaching, the company represents one of the most compelling copper development opportunities in the market."

The systematic progression from exploration to resource definition, combined with the emergence of significant by-product potential, positions Prospect Resources strategically. In conclusion, this makes it a company that warrants close attention from investors seeking exposure to the copper electrification theme.

Ready to Capitalise on the Next Major Mineral Discovery?

Discovery Alert's proprietary Discovery IQ model delivers real-time notifications on significant ASX mineral discoveries like Prospect Resources' outstanding resource expansion, instantly empowering subscribers to identify actionable opportunities ahead of the broader market. Understand why historic discoveries can generate substantial returns by exploring major mineral finds, then begin your 14-day free trial today to position yourself ahead of the market.