Guayabales Project Diamond Drilling Program

TORONTO – Collective Mining Ltd. reported on ten diamond drill holes at the Guayabales project. Six holes were designed to test the Apollo system while the remaining four holes tested greenfield targets across the rest of the project area, which resulted in the discovery of outcropping lower grade porphyry mineralization at the Plutus target. The Company’s flagship discovery is the Apollo system and is classified geologically as a large, partially Reduced Intrusion Related System enriched in gold, silver, copper and tungsten. Drilling to date at Apollo has outlined continuous mineralization from surface to more than 1,400 vertical metres and is open along strike to the north and at depth. Apollo anchors the Company’s flagship Guayabales Project–a district-scale, multi-target and infrastructure-rich project in Caldas, Colombia.
To date, Collective has completed 155,500 metres of diamond drilling across the Guayabales and San Antonio projects, including 108,500 metres at Apollo. The Company intends to drill between 80,000-100,000 metres in 2026 with a maximum of 14 diamond drill rigs operating at any one time. Multiple high-priority holes remain in the lab, with additional assay results anticipated in the near term.
Ari Sussman, Executive Chairman,said, “These latest results underscore the remarkable scale and continuity of the Apollo system, with strong infill drilling enhancing our internal block model and extending mineralization in key areas. The intersection of the Hanging Wall Vein Zone in a step-out hole and the new porphyry-style discovery at Plutus further highlights the district-scale potential of the Guayabales Project. With substantial cash on hand and an expanding fleet of drill rigs, we are well positioned to deliver significant value through continued aggressive exploration in 2026.”