The Apollo system, which initiates at the surface, has now been traced vertically over 1,300 meters and remains open for expansion at depth.

Drill Program Results and Expansion

The reported assay results stem from two holes designed to extend the high-grade Ramp Zone laterally and vertically. The Ramp Zone is a key component of the Apollo system, located at the Guayabales Project.

The first hole, APC103-D6, was a shallower intercept that extended the system approximately 50 meters laterally to the northeast.

APC103-D6 intersected 50.50 meters grading 5.66 g/t gold and 13 g/t silver from 526.10 meters downhole.

This includes 8.80 meters at 10.56 g/t gold and 23 g/t silver.

A second high-grade sub-interval measured 17.95 meters at 9.48 g/t gold and 18 g/t silver.

The second hole, APC106-D2, represents the deepest drilling to date into the Ramp Zone. This intersection expanded the zone approximately 200 meters to the east and 50 meters vertically beyond previous drilling, reaching approximately 1,300 meters below surface.

APC106-D2 cut 70.00 meters grading 2.00 g/t gold and 5 g/t silver from 693.80 meters downhole.

This included 25.05 meters at 3.44 g/t gold and 7 g/t silver.

The Ramp Zone has been defined through localized drilling over a horizontal area of 275 meters of strike and 200 meters vertically. The zone remains open in all directions, and the total vertical dimension of the Apollo system has now been traced from the surface.

Comparative Geology and Operations

The Ramp Zone, which begins at approximately 1,000 meters below the surface, is characterized as a reduced intrusion-related gold system. The mineralization exhibits similarities to the Marmato Deeps deposit, owned by Aris Mining Corporation (ARIS), located 1.75 kilometers to the southeast. Both systems share similar gold-bearing sulfide mineral assemblages and commence at comparable elevations. The Marmato Deeps deposit has an NI43-101 resource estimate of 3.76 million ounces of gold (Measured plus Indicated) at 2.54 g/t gold.

Collective Mining attributes the comparatively higher gold grades observed thus far at the Ramp Zone to two primary factors:

• Mineralization is primarily hosted within a breccia structure, which offers greater porosity for metal-bearing fluid deposition than the porphyry host rock observed at Marmato Deeps.
• The Ramp Zone mineralization is locally overprinted by high-grade late-stage porphyry veins (CBM veins), which contribute to the overall grade.

The company is currently utilizing two new large-capacity rigs in its Ramp Zone drilling efforts, including the first directional hole (APC-140D1), which has cut mineralization visually assessed as consistent with the Ramp Zone target. The stated objective of the ongoing drilling program is to extend the Ramp Zone by at least an additional 200 meters both vertically and laterally along strike.

Seven rigs are focused on the Guayabales Project, targeting both the expansion of the Ramp Zone and new greenfield prospects. The company reported a treasury of approximately $70.6 million USD as of the end of Q2 2025.

Acquisitions and Infrastructure Development

Collective Mining announced the acquisition of additional surface and mineral rights within and surrounding the Guayabales Project area.

The acquired surface rights cover the entirety of the Apollo system and are intended for future infrastructure development. Payments for the surface rights are scheduled through 2029, beginning with a Q4 2025 payment of $4.75 million USD.

The acquired mineral rights predominantly consist of licensed mining titles, intended to consolidate gaps within the project area. Payments for the mineral rights are scheduled through 2030, with an initial Q4 2025 payment of $2.8 million USD.

Collective Mining site. Photo: Loren Moss

The Ramp Zone discovery shares characteristics with reduced or partially reduced intrusion-related systems, similar to Aris Mining’s Marmato Deeps gold deposit, located 1.75 kilometers southeast. The Marmato Deeps deposit hosts a National Instrument 43-101 compliant resource estimate of 3.76 million ounces of gold in the measured and indicated category at 2.54 g/t gold and 2.54 million ounces of inferred gold at 2.39 g/t gold.

Drilling efforts are ongoing in the Ramp Zone, with two holes in progress and a third drill pad under construction. The zone remains open in all directions for potential expansion. Collective Mining’s 2025 drilling program includes up to three rigs targeting the Ramp Zone as part of a fully funded 60,000-meter campaign. The company has also contracted two additional rigs, with drilling commencing in February.

Section highlighting how the Apollo System’s Ramp Zone discovery and Marmato Deeps deposit are only 1.75 kilometers apart and begin at a similar elevation. Photo credit: Collective Mining Ltd.

The Ramp Zone mineralization is between 1,050 and 1,200 meters below the surface. Gold and silver mineralization is associated with sulfides of bismuth and tellurium, along with pyrite and pyrrhotite in veins and stockwork. The company has dispatched samples for microscopic evaluation to better understand the genesis of the Ramp Zone.

Collective Mining Ltd. is a gold, silver, copper, and tungsten exploration company with projects in Caldas, Colombia. The company’s flagship project, Guayabales, is anchored by the Apollo system, which hosts large-scale, bulk-tonnage, and high-grade mineralization.

The company is listed on the NYSE and TSX under the trading symbol “CNL” and on the FSE under the trading symbol “GG1”.

Apollo System Section: High-Grade Continuity from the surface for over 1,200 meters and open. The Ramp Zone begins at the proposed underground access tunnel at approximately 1,000 meters above sea level. Photo credit: Collective Mining Ltd.

Table 1: Ramp Zone Assays Results for Drill Holes APC103-D1 and APC103-D2

The discovery, revealed in drill hole APC99-D5, highlights a 57.65-meter section averaging 8.18 grams per ton (g/t) of gold equivalent, including a 18.85-meter interval at 20.21 g/t. This new zone, located about 1,000 meters below the surface, marks a significant deep-seated mineralization in an area close to a planned tunnel that may later connect the site to mining infrastructure, pending future project developments.

The Ramp Zone, similar in some geological aspects to Aris Mining’s nearby Marmato Deeps deposit, includes veins bearing bismuth, tellurium, and copper, which are characteristic of Reduced Intrusion-Related Gold Systems. The proximity to the Marmato Deeps and its specific mineral composition suggests a robust potential for extending the resource base in the Apollo project area.

Collective Mining currently has five active drill rigs within the Guayabales Project as part of its 2024 exploration program, which aims to complete 40,000 meters of drilling. Expansion plans include additional drilling in the Ramp Zone and surrounding areas, with assay results expected by late 2024.

For more technical details, see the company’s official press release.

Above image: Plan View of the High-Grade Ramp Zone Discovery (CNW Group/Collective Mining Ltd.)