Infini Resources Confirms Major Uranium Discovery at Portland Creek

Infini Resources Strikes Major Uranium Discovery at Portland Creek

In a significant development for uranium exploration in Newfoundland, Infini Resources (ASX: I88) has announced extensive uranium mineralisation in its Phase 2 drilling program at the Portland Creek Project, validating the company's exploration model and potentially signaling a district-scale uranium discovery by Infini Resources.

Breakthrough Drill Results Confirm Uranium System

Infini Resources has made a game-changing discovery with drillhole PCDD25-012 intersecting widespread uranium mineralisation across multiple zones between 28.0m and 312.0m downhole depth, with portable XRF readings indicating high-grade uranium values primarily along fractures and cavity zones within intensely altered granites.

The breakthrough discovery includes:

• Uraninite identified at 270.0m and 289.0m, recording exceptional values of 1.2% uranium and 1.17% uranium respectively via portable XRF
• Multiple uranium-bearing fracture zones with values consistently ranging from 1,000 ppm to 12,000 ppm uranium
• Widespread hydrothermal alteration confirming the company's structural model

What makes this discovery particularly significant is that hole PCDD25-012 is situated approximately 1.5km from a previously identified peak soil anomaly of 74,997 ppm U₃O₈, suggesting a large and potentially economic uranium hydrothermal system.

"These first drillholes are a game-changer for Portland Creek. We have intersected extensive zones of elevated uranium, confirming widespread hydrothermal alteration and validating our exploration model. With Phase 2 drilling still in the early stages, the scale of the opportunity at Portland Creek is becoming increasingly clear. With every hole, we are uncovering more indications of a potential district-level polymetallic uranium system in Newfoundland, at a time when uranium and critical minerals are central to the global energy transition," said Rohan Bone, Infini's Chief Executive Officer.

Evidence of a Polymetallic Mineral System

Beyond uranium, the drilling program has revealed compelling evidence of a district-scale polymetallic system:

• Hole PCDD25-009A intersected high-grade molybdenum with a pXRF spot sample detecting 2.38% Mo within a 4m albitised granite interval
• Hole PCDD25-008 returned 14% titanium within a cavity at 175.5m with elevated vanadium, niobium, copper and zinc
• Multiple holes have shown extensive alteration including hematite, chlorite and albitic alteration, indicating a robust hydrothermal system

These results point to a potentially significant polymetallic system containing uranium, molybdenum, zinc, and other critical minerals that are essential for the global energy transition.

Understanding Uranium Mineralisation in Fracture Zones

One of the key discoveries at Portland Creek is the clear relationship between uranium mineralisation and fracture zones. The Portland Creek uranium is primarily found along fractures and joint surfaces within intensely altered granite.

For investors new to uranium exploration, fracture-controlled uranium deposits are significant because they often represent pathways for mineralising fluids. The presence of uraninite (a primary uranium mineral) along these fractures at Portland Creek is particularly encouraging, as it suggests a primary hydrothermal uranium source rather than secondary enrichment.

Uraninite is a uranium-rich mineral (primarily uranium oxide) that contains up to 85% uranium and is one of the most important ore minerals for uranium production. Its presence in primary deposits is typically associated with hydrothermal processes where uranium-bearing fluids have moved through fractures and deposited uranium minerals. The identification of uraninite in drill core at Portland Creek is significant because:

1. It represents a primary uranium mineral rather than secondary uranium minerals that form through weathering processes
2. It generally contains higher uranium concentrations than secondary minerals
3. Its presence suggests a robust mineralising system capable of concentrating uranium to potentially economic levels

The extensive alteration observed in the drill core—including hematite, chlorite, and albite alteration—further supports the presence of a substantial hydrothermal system capable of transporting and depositing uranium and associated metals.

Exploration Progress and Next Steps

The Phase 2 drilling program has made significant progress:

• Six drillholes completed or in progress (PCDD25-007, 008, 009A, 010, 011A and 012), totaling 1,421 meters
• Only 2 of 12 priority targets have been partially drill-tested to date
• All targets are situated within a >6km corridor of uranium-in-soil anomalies

Looking ahead, Infini Resources has indicated plans to:

• Continue drilling at Target 2 to test for extensions of the uranium mineralisation
• Expand the minimum 2,500m Phase 2 drill program to test additional high-priority uranium targets
• Conduct systematic sampling, geochemical assays and structural analysis to vector towards potential high-grade zones

Laboratory assay results from the Phase 2 drilling program are expected in Q4 2025, which will provide definitive confirmation of the grades indicated by portable XRF readings.

Portland Creek Project: A Strategic Asset

The Portland Creek Uranium Project spans 149 km² within the Precambrian Long-Range Complex of Newfoundland. The project area covers a large regional uranium anomaly first identified in the 1970s through government lake sediment sampling.

Key features of the project include:

• A 6km zone of anomalous uranium and radon gas in lake sediments, soils and airborne radiometrics
• A defined ~800m x 100m high-grade uranium soil anomaly with a peak result of 74,997 ppm U₃O₈
• Multiple high-priority targets along prominent East-West fault structures
• Proximity to the historic Daniel's Harbour zinc mine (10km away), providing an analogue for large-scale hydrothermal activity in the district

Investment Potential

The latest drilling results significantly enhance the investment case for Infini Resources for several reasons:

1. Scale and Potential: The widespread uranium mineralisation across multiple zones suggests a district-scale system with significant tonnage potential

2. Critical Minerals Focus: The polymetallic nature of the discovery aligns with growing global demand for uranium and critical minerals essential for the energy transition

3. Exploration Upside: With only 2 of 12 priority targets tested to date, the project offers substantial exploration upside

4. Strategic Location: Newfoundland represents a tier-one mining jurisdiction with excellent infrastructure and supportive mining policies

The confirmation of uraninite in drill core represents a significant milestone, as this primary uranium mineral is typically associated with economic uranium deposits globally.

Why Investors Should Watch Infini Resources

For investors looking for exposure to the uranium sector, Infini Resources presents a compelling opportunity:

• Early-Stage Discovery: The Portland Creek Project represents a genuine new uranium discovery in a jurisdiction not traditionally known for uranium mining
• Polymetallic Potential: The presence of multiple metals (uranium, molybdenum, titanium) enhances the economic potential
• Defined Exploration Plan: With systematic drilling of identified targets, the company has a clear path to potentially defining a significant resource
• Timing in Uranium Cycle: The discovery comes at a time of strengthening uranium fundamentals, with increasing nuclear power development globally

With a JORC 2012 Inferred Resource already established at its Des Herbiers Project (162 Mt @ 123ppm U3O8 for 43.95mlb), Infini has demonstrated its ability to define uranium resources. The Portland Creek discovery potentially represents a higher-grade complement to this existing resource base.

As drilling continues at Portland Creek and assay results become available in Q4 2025, Infini Resources represents an exciting uranium exploration story with the potential to deliver significant shareholder value as the project advances.

Want to Invest in a Potential District-Scale Uranium Discovery?

Discover more about Infini Resources' breakthrough uranium mineralisation at Portland Creek and their strategic uranium assets as they continue to uncover what could be a significant polymetallic uranium system in Newfoundland. With substantial exploration upside, multiple high-priority targets, and favourable uranium market fundamentals, now is the time to consider the investment potential. For more detailed information about Infini Resources and the Portland Creek project, visit their website at infiniresources.com.au.