Global Uranium Pine Ridge Drilling Results Exceed Expectations

Global Uranium's Pine Ridge Project Delivers Fourth Set of Outstanding Drilling Results

Global Uranium and Enrichment Limited (ASX: GUE) has announced exceptional results from its fourth round of drilling at the Pine Ridge Uranium Project in Wyoming's prestigious Powder River Basin. The company continues to demonstrate the robust development potential of this flagship asset through a comprehensive 114-hole drilling programme totalling 38,000 metres (125,000 feet).

The standout result came from hole PR25-093, which intersected 2.6m at 0.101% U₃O₈ (1,010 ppm) from 257.6m depth, including a high-grade section of 2.0m at 0.124% U₃O₈ (1,240 ppm). This represents one of the strongest intercepts to date and reinforces the quality of uranium mineralisation across the property.

Outstanding Drilling Results Continue to Build Investment Case

The latest batch of 45 holes from the Pine Ridge drilling programme has returned multiple significant uranium intercepts across two distinct sandstone horizons within the Tertiary Fort Union Formation. Furthermore, these results demonstrate the consistency of mineralisation across the expanding drill programme.

High-Grade Intercepts Lead the Way

The following intercepts highlight the exceptional grades encountered across multiple drill holes:

• PR25-093: 2.6m at 0.101% U₃O₈ (1,010 ppm) from 257.6m, including 2.0m at 0.124% U₃O₈ (1,240 ppm) at 257.9m
• PR25-079: 0.8m at 0.117% U₃O₈ (1,170 ppm) from 249.3m
• PR25-080: 2.6m at 0.048% U₃O₈ (480 ppm) from 260.3m, plus 1.2m at 0.079% U₃O₈ (790 ppm) from 292.3m

Consistent Mineralisation Pattern Emerges

In addition to the high-grade intercepts, the drilling programme has revealed a consistent pattern of mineralisation across the property:

• PR25-067: 4.1m at 0.030% U₃O₈ (300 ppm) from 337.3m
• PR25-051: 2.4m at 0.030% U₃O₈ (300 ppm) from 323.5m
• PR25-062: 1.7m at 0.045% U₃O₈ (450 ppm) from 333.3m

Global Uranium Pine Ridge drilling results indicate uranium mineralisation hosted in at least two major sandstone units at depths of 200-300 metres and 335-400 metres. Crucially, these units appear geologically and hydrologically isolated, making them ideal candidates for In-Situ Recovery (ISR) development—the preferred extraction method for sandstone-hosted uranium deposits.

Managing Director Andrew Ferrier commented: "We continue to be encouraged by the positive drilling results from our Pine Ridge Project, and we look forward to releasing the full set of data in the coming weeks, highlighting the positive outcomes of this programme. This drilling programme and ongoing development at Pine Ridge comes at an important time, as the need for reliable domestic uranium to support US energy security is stronger than ever."

Understanding Roll Front Uranium Deposits: A Primer for Investors

Roll front uranium deposits represent one of the most economically viable forms of uranium mineralisation, particularly suited to low-cost ISR extraction methods. These deposits form when uranium-bearing groundwater encounters a chemical boundary (redox front) where oxidising conditions meet reducing conditions.

What Are Roll Fronts?

Roll front deposits form over geological time when uranium dissolved in groundwater precipitates at chemical boundaries within sandstone formations. The uranium concentrates where the chemistry changes from oxygen-rich to oxygen-poor environments, creating curved, roll-shaped zones of mineralisation.

Why Roll Fronts Matter to Investors

Roll front deposits offer several compelling advantages for uranium investors:

• Lower extraction costs compared to hard rock mining
• Minimal environmental impact through ISR technology
• Faster development timelines from discovery to production
• Scalable production that can respond to market demand

The Pine Ridge Project's identification of "stacked roll fronts" across multiple horizons suggests a robust, large-scale uranium system that could support sustained production over many years. However, Global Uranium Pine Ridge drilling results continue to validate this geological interpretation across the expanding drill programme.

Strategic Location in America's Premier Uranium Basin

Pine Ridge benefits from an exceptional location in Wyoming's Powder River Basin, surrounded by established uranium operations and infrastructure. The project sits just 15 kilometres from Cameco's Smith Ranch Mill, which boasts a licensed capacity of 5.5 million pounds U₃O₈ annually—one of the largest uranium production facilities in the United States.

Location Advantages Drive Economic Potential

The strategic positioning offers numerous benefits that could significantly enhance project economics:

• Proximity to existing uranium projects held by UEC and Cameco
• Access to proven ISR-suitable geology
• Established regional infrastructure for uranium processing
• Experienced local workforce familiar with uranium operations

This strategic positioning could significantly reduce future development costs and accelerate the pathway to production. For instance, Pine Ridge could potentially utilise existing regional processing infrastructure rather than building new facilities from scratch.

Comprehensive Dataset Building Toward Resource Definition

With the completion of 114 holes totalling 38,000 metres, Global Uranium has now accumulated one of the most comprehensive modern datasets for the Pine Ridge Project. Combined with historical drilling totalling over 1,200 holes, the company has identified more than 140 miles of redox fronts across the property.

Drilling Programme Achievements

The systematic approach to exploration has yielded impressive results:

• 114 new holes completed in 2025 programme
• 38,000 metres of total drilling completed
• Multiple uranium horizons identified and tested
• Consistent mineralisation across expanding area

The systematic approach to drilling has revealed the continuous nature of uranium mineralisation across the property. Moreover, Global Uranium Pine Ridge drilling results support the geological interpretation of a large-scale uranium system suitable for ISR development.

Investment Thesis Strengthening Through Consistent Results

Global Uranium's Pine Ridge Project represents a compelling development opportunity in one of the world's most prolific uranium districts. The combination of consistent drilling results, strategic location, and growing dataset positions the company well within the current uranium market environment.

Investment Thesis Strengthening Factors

Several factors continue to strengthen the investment case for Pine Ridge:

• Growing resource base supported by systematic drilling programme
• Strategic location near existing uranium infrastructure
• ISR-suitable geology offering lower-cost extraction potential
• Strong uranium market fundamentals driven by nuclear energy renaissance
• US energy security focus creating supportive regulatory environment

The timing of Pine Ridge's development aligns with renewed focus on domestic uranium production to support US energy security objectives. With uranium prices remaining elevated and long-term supply contracts becoming increasingly valuable, projects like Pine Ridge that can demonstrate consistent mineralisation and development potential are attracting significant attention.

Upcoming Catalysts to Watch

Several key milestones could further enhance the project's value proposition:

• Final set of drill results from completed 114-hole programme
• Resource estimation work based on comprehensive dataset
• Potential expanded drilling programme in 2026
• ISR feasibility and development studies

Technical Drilling Programme Details

The 2025 drilling programme utilised truck-mounted mud rotary equipment with holes drilled vertically at 5-5/8 inch diameter. All holes were logged using calibrated downhole gamma sondes to measure natural gamma emission from rock formations, producing equivalent uranium grades (eU₃O₈). This represents the industry-standard method for evaluating sandstone-hosted uranium mineralisation.

Technical Specifications

The drilling programme followed rigorous technical standards:

• Drilling Method: Conventional mud rotary
• Hole Spacing: Approximately 150m (500 ft) centres
• Logging Equipment: Hawkins 9144C probe tool
• Calibration: US Department of Energy uranium test pits, Casper, Wyoming
• Grade Calculation: Natural gamma data converted to eU₃O₈

The drilling has confirmed uranium mineralisation within the Tertiary Fort Union Formation, hosted in sandstone units that appear geologically and hydrologically isolated. This geological setting supports the development potential for future ISR operations.

Looking Forward: Resource Definition and Development

Global Uranium Pine Ridge drilling results position the project for advancement toward resource definition and eventual ISR development. With comprehensive geological data now available across the property, the company can move forward with resource estimation work and preliminary economic assessments.

The consistent nature of mineralisation across multiple horizons suggests Pine Ridge could support a substantial uranium resource suitable for long-term production. Furthermore, the strategic location near existing infrastructure enhances the economic potential of future development.

Key Development Considerations

Several important factors will influence the project's development trajectory:

• Resource estimation based on 114-hole dataset plus historical drilling
• Hydrogeological studies to confirm ISR suitability
• Environmental baseline studies and permitting requirements
• Economic assessment incorporating current uranium market conditions
• Potential for additional exploration to expand resource base

Global Uranium's Pine Ridge Project continues to deliver exceptional drilling results that validate its position as a premier uranium development opportunity in Wyoming's Powder River Basin. With a comprehensive dataset now available and multiple uranium horizons confirmed, the project is well-positioned to advance toward resource definition and eventual ISR development.

Investors should monitor upcoming resource announcements and development milestones as Global Uranium builds toward production in one of America's most strategic uranium districts. The combination of exceptional Global Uranium Pine Ridge drilling results, strategic location, and favourable market conditions creates a compelling investment opportunity in the growing uranium sector.

Company Overview

Global Uranium and Enrichment Limited (ASX: GUE) is developing a portfolio of advanced uranium assets across the United States and Canada, with additional exposure to uranium enrichment technology through its investment in Ubaryon. The company's flagship Pine Ridge Project joins a portfolio that includes the Tallahassee Project (52.2 million pounds U₃O₈ resource) and strategic Athabasca Basin exploration assets.

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