Diablo’s US Critical Minerals Push Gains Momentum Amid Pending Assay Results

Diablo Resources has wrapped up its maiden drilling at the Phoenix Copper Project in Utah, with assay results pending and plans underway for further exploration at the Fair Dinkum Prospect. The company is also eyeing expansion across the US critical minerals sector amid supportive government initiatives.

  • Maiden drilling completed at 100%-owned Phoenix Copper Project, Utah
  • Assay results from initial drilling and soil sampling expected soon
  • Fair Dinkum Prospect drilling scheduled for Q4 2025 with high-grade surface copper
  • Active evaluation of expansion into US critical minerals including cobalt and rare earths
  • US government backing a $5 billion mining investment fund supporting domestic supply
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Drilling Milestone at Phoenix Copper Project

Diablo Resources Limited has successfully completed its inaugural drilling campaign at the Phoenix Copper Project in Utah, a strategic asset located along strike from the producing Lisbon Valley Copper Mine. This maiden program, comprising nine drill holes totaling 646 meters, targeted priority zones including the Philadelphia and Trenton prospects, areas not recently drilled. Samples from this campaign have been dispatched to laboratories, with assay results anticipated in the coming weeks, setting the stage for a clearer understanding of the project's potential.

Soil Sampling and Upcoming Fair Dinkum Drilling

Complementing the drilling, a comprehensive soil sampling program was completed over the southwest extensions of the Philadelphia Fault, a key mineralised structure within the project area. These results, also pending, will inform further exploration strategies. Meanwhile, Diablo is preparing for a maiden drilling program at the Fair Dinkum Prospect, slated for the fourth quarter of 2025. This prospect is notable for its high-grade copper mineralisation exposed at surface, with assays previously recording peak copper grades of 2.76% and significant silver content, underscoring its promise as a flagship target.

Strategic Expansion into US Critical Minerals

Beyond Phoenix, Diablo is actively assessing additional opportunities within the US critical minerals sector, including copper, cobalt, antimony, and rare earth elements. This diversification aligns with broader market dynamics and the US government's push to secure domestic supply chains for critical minerals. Notably, discussions are underway to establish a US$5 billion mining investment fund, a development that could provide substantial financial and policy support to companies like Diablo aiming to expand their footprint in North America.

Positioning Amidst a Growing Market

CEO Lyle Thorne emphasised the significance of these developments, highlighting the momentum building towards a high-impact exploration campaign and the company's strategic intent to capitalise on favourable macroeconomic and policy tailwinds. With the Phoenix Project drilling complete and Fair Dinkum drilling imminent, Diablo is positioning itself as a key player in the evolving US critical minerals landscape, a sector increasingly critical to global supply chains and clean energy transitions.

Bottom Line?

As assay results loom and new drilling approaches, Diablo’s US critical minerals ambitions are poised for a defining phase.

Questions in the middle?

  • What will the assay results reveal about the scale and grade of copper mineralisation at Phoenix?
  • How might the upcoming Fair Dinkum drilling reshape Diablo’s resource potential and project prioritisation?
  • What specific opportunities and timelines are involved in Diablo’s broader US critical minerals expansion plans?