Collective Mining Ltd. has intersected broad, shallow zones of precious metal mineralization in six diamond drill holes testing the Shallow Halo Zone at the Apollo deposit within the Guayabales Project in Caldas, Colombia.

The drilling targeted rock surrounding the main breccia body at Apollo. All six holes returned intercepts above the open pit cutoff grade from areas previously modeled as waste within the maiden Mineral Resource open pit outline announced on September 8, 2026.

Drill hole APC-182 returned 135.15 meters at 2.12 g/t gold equivalent from 21.30 meters down hole, including 61.05 meters at 3.65 g/t gold equivalent from 70.35 meters. Additional results from Pad38 included hole APC-177, which intersected 163.95 meters at 0.47 g/t gold equivalent from 8.60 meters, and hole APC-176, which returned 107.45 meters at 0.48 g/t gold equivalent from 46.90 meters.

“These results highlight an exciting opportunity to build on Apollo's maiden Mineral Resource by identifying broad zones of shallow mineralization in areas currently modeled as waste in the recently announced Mineral Resource. The Shallow Halo Zone offers two potential benefits: adding resource ounces within the existing pit shell and reducing the modeled 3.4:1 strip ratio in a future mineral resource update.” — Ari Sussman, Executive Chairman

The Shallow Halo Zone extends from surface to approximately 150 meters below surface across an interpreted 2.4-kilometer-long and 200-meter-wide target. Approximately 80 percent of the zone within the open pit shell remains untested. Furthermore, mother hole APC-164D intersected 52.10 meters at 0.33 g/t gold equivalent from 88.20 meters approximately 120 meters northeast of the open pit outline, indicating potential for mineralization to extend beyond the boundary.

“Across Apollo, we have drilled 42,000 meters since the Mineral Resource drilling cutoff date and are awaiting a substantial backlog of assays. We expect these pending results to demonstrate further growth potential beyond the maiden Mineral Resource.” — Ari Sussman, Executive Chairman

Collective held US$93.7 million in cash as of June 30, 2026, fully funding its planned 2026 program of up to 90,000 meters of drilling. Thirteen diamond drill rigs are operating across the Guayabales Project, with three rigs dedicated to evaluating the remaining exploration potential of the Shallow Halo Zone.

Read the full announcement: Collective Mining Intersects Broad Zones of Shallow Mineralization Within Areas Modeled as Waste in the Apollo Mineral Resource Open Pit Shell Including, 135.15m @ 2.12 g/t AuEq from 21.30m