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• Initial Mineral Resource for the Apollo deposit, which is the flagship of a series of discoveries made by Collective Mining on its 100% owned Guayabales Project:
  • Indicated Mineral Resources of 37.0 Mt @ 2.17 g/t AuEq for 2.58 million oz AuEq
  • Inferred Mineral Resources of 48.2 Mt @ 1.83 g/t AuEq for 2.83 million oz AuEq
• High-grade, open pit resource at an attractive strip ratio of 3.4:1:
  • 22.5 Mt @ 2.06 g/t AuEq Indicated, for 1.49 million oz AuEq
  • 25.9 Mt @ 0.86 g/t AuEq Inferred, for 0.71 million oz AuEq
  • Gold contributes approximately 50% of the calculated AuEq grade of the Indicated open-pit resource, with silver, copper and tungsten contributing the balance under the stated assumptions
  • Smaller conceptual pit shells illustrate higher-grade and lower strip-ratio scenarios
• A high-grade, underground Mineral Resource for the Ramp Zone:
  • 6.04 Mt @ 5.37 g/t AuEq Inferred for 1.04 million oz AuEq
  • 1.29 Mt @ 4.74 g/t AuEq Indicated for 0.20 million oz AuEq
• Growth opportunities extend beyond the current Mineral Resource boundaries, with approximately 40,000 meters of drilling completed since the database cut-off, including reported assay results and intervals awaiting assays
• The Company is accelerating environmental and technical studies at Apollo and is targeting submission of an environmental license application in H2 2027

MIAMI, Sept. 8, 2026 /CNW/ -- Collective Mining Ltd. (NASDAQ:CNL) (TSX:CNL) ("Collective" or the "Company") is pleased to announce a maiden Mineral Resource (the "Mineral Resource" or "MR") for the Apollo deposit ("Apollo"), the most advanced in a series of discoveries made at the Company's Guayabales Project in Caldas, Colombia.

Ari Sussman, Executive Chairman, commented: "The scale and grade of Apollo's maiden Mineral Resource establish a strong foundation for what we believe will become a major mining project. Importantly, this is the largest new mineral resource stage discovery in Colombia since we discovered Buriticá for Continental Gold more than a decade ago. Similar to Buriticá, where the resource grew over time with continued drilling, I see substantial opportunity to expand Apollo through our ongoing aggressive drill program. Results announced since the resource database cut-off demonstrate extensions to mineralization at multiple elevations including the near-surface Shallow Halo Zone, the new Northern Breccia Extension and the western side of the Ramp Zone. These results reinforce our confidence in Apollo's potential to grow both laterally and at depth.  With thirteen rigs operating across Guayabales, drilling at Apollo is focused on testing these extensions and increasing confidence in the existing resource."