Collective Mining Ltd.

Technical Information

Samples were cut by Company personnel at Collective Mining's core facility in Caldas, Colombia. Diamond drill core was sawn and then sampled in maximum 2-meter intervals, stopping at geological boundaries. Drill hole core diameter is a mix of PQ, HQ and NQ depending on the depth of the drill hole. Core samples were prepared and analyzed at ALS laboratory facilities in Medellín, Colombia and Lima, Peru for gold, silver, copper and tungsten assays, and multi-element ICP. ALS is an accredited laboratory which is independent of the Company. Gold assays were obtained by fire assay fusion with AAS finish on a 50 g sample (Au-AA24). Any samples returning greater than 10 g/t were reanalyzed by fire assay with gravimetric finish on a 50 g sample (Au-GRA22). Copper and silver were assayed by inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and inductively coupled plasma-mass spectrometry (ICP-MS) following a 4-acid digestion. Tungsten was analyzed with the ME-MS61 multi-element suite, while WO₃ was determined by X-ray fluorescence (XRF-15b/15c). Samples were also analyzed for a suite of 48 elements with ME-MS61 plus mercury and a sequential copper leach analysis was completed on each sample with copper greater than 10,000 parts per million. Blanks, duplicates, and certified reference standards were inserted into the sample stream to monitor laboratory performance. Crush rejects and pulps were retained and stored in a secured storage facility for future assay verification. No capping has been applied to sample composites. The Company utilizes a rigorous, industry-standard QA/QC program.

For further information regarding the Apollo Mineral Resource, including the effective date, data verification, key assumptions, parameters and methods used to estimate the Mineral Resource, and related risks, see the Company's news release dated September 8, 2026 entitled "Collective Mining Announces Maiden Mineral Resource for its Apollo Deposit at the Guayabales Project".