Mining News Flash with IsoEnergy, U.S. GoldMining, Gold X2 Mining and Southern Cross Gold

Key Concepts

• Uranium Exploration: Systematic drilling and sandstone channel interpretation.
• Mineralized Material Testing: Large-scale mining trials to assess operational efficiency and economic viability.
• Diamond Core Drilling: A method used to extract cylindrical rock samples for geological analysis.
• Shear Zones: Geological structures often associated with gold mineralization.
• Dual Metal Profile: The presence of both gold and antimony in significant quantities, increasing project value.
• Preliminary Economic Assessment (PEA): A study used to determine the potential economic viability of a mineral project.

ISO Energy: Uranium Projects in Utah

ISO Energy is advancing its uranium exploration in the Henry Mountains uranium district, specifically at the Flatron project.

• 2026 Drilling Program: The company is mobilizing equipment to complete seven surface rotary drill holes (totaling 11,000 ft) with core recovery. This follows three exploratory holes drilled in late 2025, which helped identify the sandstone channel—a critical indicator for potential mineralization.
• Historical Context: The current program builds upon regional exploration data originally gathered by Plateau Resources in the early 1980s.
• Tony M Mine Testing: In collaboration with Gen X mining contractors, ISO Energy extracted approximately 2,100 tons of mineralized material. This test was designed to gather data on:
  • Mining rates and work sequencing.
  • Equipment sizing and operational costs.
  • Dilution and grade control.
• Outcome: The data collected will be analyzed to inform a future Preliminary Economic Assessment (PEA).

US Gold Mining: Whistler Gold-Copper Project (Alaska)

US Gold Mining has initiated its 2026 exploration program at the Whistler project, focusing on expanding the resource base.

• Methodology: The company is utilizing diamond core drilling to target upward extensions near existing deposits and new targets within the Whistler-Rainree area.
• Operational Readiness: The company has completed the pre-mobilization of equipment and consumables, ensuring that summer exploration and drilling can commence immediately once environmental conditions permit.

Gold X2 Mining: Moss Gold Project

Gold X2 Mining reported positive assay results from its drilling program in the Superior Zone, aimed at delineating high-grade shear zones.

• Drilling Scope: 17 additional drill holes were completed to define shear zones within the current open-pit boundary and the area between the Superior and QES core shear zones.
• Key Results:
  • 9 meters grading 5.18 g/t gold.
  • 6.1 meters grading 10.44 g/t gold.
  • 73 meters grading 0.97 g/t gold.

Southern Cross Gold: Sunday Creek Project (Australia)

Southern Cross Gold continues to report high-grade results from its Sunday Creek gold-antimony project, specifically at the Golden Dyke deposit.

• Exceptional Grades: The project is characterized by high-grade gold and significant antimony content. One notable interval yielded 55.3 g/t gold over 1.6 meters.
• Dual Metal Value: The project is unique due to its high antimony content, which adds significant economic value. One drill hole sample reached 227 g/t gold and 10.6% antimony.
• Operational Scale: The company has increased its active drilling fleet to 11 rigs to accelerate the expansion of the Golden Dyke deposit, which remains open for further growth.

Synthesis and Conclusion

The current commodities landscape, as highlighted by these exploration updates, shows a strong focus on systematic drilling and operational testing to de-risk projects. ISO Energy is leveraging historical data to refine its uranium exploration, while US Gold Mining and Gold X2 Mining are focused on expanding their gold-copper resource pipelines through targeted drilling. Southern Cross Gold stands out for its unique dual-commodity profile (gold and antimony), which provides a strategic advantage in the critical minerals market. Collectively, these companies are moving from exploration toward economic validation, with data from these programs serving as the foundation for future economic assessments and project development.