Collective Mining advances Apollo flowsheet for 2027 licensing submission

Canada NewsWire

MIAMI , Sept. 21, 2026 /CNW/ -- Collective Mining Ltd. (NASDAQ: CNL) (TSX: CNL) ("Collective" or the "Company") is pleased to announce that it is advancing an integrated processing flowsheet for the Apollo deposit at its Guayabales Project in Caldas, Colombia, in support of its planned 2027 licensing submission. Metallurgical test work completed to date has demonstrated strong gold, silver, copper, and tungsten recoveries using conventional processing methods.

Apollo's processing strategy is designed around the distinct distribution of metals within the deposit. Higher-grade copper and tungsten mineralization is concentrated within defined sub-domains, predominantly within the Indicated portion of the Mineral Resource, while the broader deposit is predominately gold and silver with low copper and tungsten grades. Accordingly, the Company expects copper and tungsten production to come primarily from these higher-grade sub-domains, while the balance of the Mineral Resource will be processed through a conventional cyanidation circuit for gold and silver.

Table 1 : Key Metallurgical Test Work Results

The sample material used to generate the copper and tungsten results presented in Table 1 was sourced specifically from the Copper Sub-Domain and Tungsten Sub-Domain, respectively ( see Figures 1 and 2). The Apollo master composite was generated from drill core samples collected from representative locations across approximately the top 1,000 metres of the Apollo deposit .

Ned Jalil, Chief Executive Officer of Collective Mining, commented: "Apollo has a clear processing strategy that reflects the distribution of metals within the deposit. The majority of the Mineral Resource, where copper and tungsten grades are low, will be processed through a conventional cyanidation circuit with low reagent cons