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Aldebaran Reports 513 m of 1.06% CuEq (1.01% Cu, 0.08 g/t Au & 3.58 g/t Ag), Within 1,257.30 m of 0.66% CuEq (0.62% Cu, 0.05 g/t Au & 1.94 g/t Ag) at the Altar Copper-Gold Project in San Juan, Argentina

  • Aldebaran Resources Inc. released drill results from six holes (ALD-26-267, ALD-26-261, ALD-25-262, ALD-26-182EXT, ALD-26-263, ALD-26-264) completed during the 2025-2026 infill and geotechnical program at the Altar project in San Juan, Argentina.
  • The primary objective of the drilling was to upgrade resource blocks from the Inferred category to Measured & Indicated categories, with some holes also serving geotechnical purposes to constrain 3D geological models for future mine design.
  • Hole ALD-26-267 returned 1,257.30 m of 0.66% CuEq, including a high-grade interval of 214 m of 1.57% CuEq.
  • Hole ALD-26-261 returned 1,323.20 m of 0.50% CuEq, including a significant interval of 555 m of 0.71% CuEq.
  • Hole ALD-25-262 returned 939.30 m of 0.58% CuEq, including an interval of 420.30 m of 0.76% CuEq.
  • Hole ALD-26-182EXT (an extension) returned 1,354 m of 0.41% CuEq, including 162 m of 0.61% CuEq.
  • Hole ALD-26-263 returned 1,336 m of 0.38% CuEq, including 124 m of 0.69% CuEq.
  • Hole ALD-26-264 reported a total depth of 400.40 m with no reportable intervals.
  • CuEq calculations utilized metal prices of US$3.00/lb for copper, US$1,400/oz for gold, US$18/oz for silver, and US$10/lb for molybdenum, with specific recovery rates applied to supporting metals.
  • Assay turnaround delays have pushed the updated mineral resource estimate completion to October 2026, though the pre-feasibility study remains on track for Q2/Q3 2027.
  • The updated resource estimate will provide the foundation for the upcoming pre-feasibility study, while oriented drilling data enhances the geological model for both open pit & potential underground designs.