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Gold mining

Rox Resources Limited Announces Significant Increase in Youanmi Gold Project Mineral Resource Estimate

Strategic Insights

— 1 min read

Rox Resources Limited has reported a substantial increase in the mineral resource estimate for its Youanmi Gold Project in Western Australia, highlighting its position as one of the highest-grade emerging gold projects of scale in Australia. The updated estimate reveals a total mineral resource of 2.2 Moz at 5.6 g/t Au, with a significant increase in contained gold and grade in the underground resource compared to the 2024 MRE update. The underground Indicated resource has grown by 396 Koz, a 36% increase, to 1.5 Moz, representing 71% of the total underground resource.

Key Takeaways:

  • The Youanmi Gold Project has been confirmed as one of the highest-grade emerging gold projects of scale in Australia, with a total mineral resource of 2.2 Moz at 5.6 g/t Au.
  • The underground Indicated resource has grown by 396 Koz, a 36% increase, to 1.5 Moz, representing 71% of the total underground resource.
  • The drop in open pit resources aligns with Rox's strategy to develop Youanmi as a high-grade underground mine from the outset.
  • 71% of the underground resource is now in the Indicated category, providing a strong platform for the upcoming Definitive Feasibility Study.
  • The company has successfully increased the Indicated resource through targeted drill programs and historic data compilation, with the total Indicated resource growing by 1.07 Moz or 225% since acquiring the project.
  • The updated mineral resource estimate will underpin DFS workstreams, including new mine design and schedules, economic models, and budget, delivering an updated ore reserve and production target in Q4 CY2025.

Statistics:

  • Total mineral resource: 2.2 Moz @ 5.6 g/t Au
  • Underground Indicated resource: 1.5 Moz (71% of total underground resource)
  • Underground resource grade increase: 6.0 g/t Au (from 5.5 g/t Au)
  • Contained gold increase: 0.4 Moz (21% increase)
  • Drill campaigns: 35,000m extensional and 11,000m in-fill drilling
  • Number of surface diamond holes: 391
  • Number of underground diamond holes: 392
  • Total number of RC holes: 5,815
  • Total number of open pit grade control samples: 4,511
  • Total number of underground grade-control samples: 12,012

Sources:

  • Rox Resources Limited, ASX: RXL
  • JORC Code (2012)
  • Youanmi Gold Project geology and geological interpretation and domaining
  • Mineralisation and ore zone widths
  • Drilling techniques and sampling methodologies
  • Sample preparation and assaying

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