Green Bridge Metals wins Minnesota DNR approval for Serpentine copper-nickel drilling plan

  • Green Bridge Metals secured Minnesota DNR clearance for a Phase 1 diamond drilling program at its Serpentine copper-nickel project in St. Louis County.
  • Foraco International was hired to drill at least 1,640 meters of diamond core, with mobilization set ahead of an August 2026 start.
  • Serpentine hosts 279.9 million tonnes of inferred resources grading 0.37% Cu, 0.12% Ni, 0.007% Co at a US$ 10.25/tonne NSR cutoff.
  • The estimate includes 21.6 million tonnes indicated at 0.46% Cu, 0.16% Ni, 0.014% Co at the same US$ 10.25/tonne cutoff.
  • Work aims to tighten resource confidence, test extensions of mineralization, support potential resource updates, and guide future scoping-level studies.


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