Collective Mining Expands Ramp Zone by Drilling 83.75 Meters at 21.14 g/t Gold Beginning at 1,355 Meters Below Surface

TSX: CNL | NYSE American: CNL

Overview

Collective Mining Ltd. announced on March 29, 2026, that hole APC150-D1 at the Ramp Zone within its flagship Guayabales Project in Caldas, Colombia, returned three bulk zones of high-grade gold mineralization. The headline intercept returned 83.75 meters grading 21.14 g/t gold and 17 g/t silver beginning at 649 meters downhole, or approximately 1,335 meters below surface. This interval included 20.80 meters at 51.36 g/t gold and 35 g/t silver, and a further 1.15 meters at 734.00 g/t gold and 465 g/t silver.

According to Executive Chairman Ari Sussman, "APC150-D1 is a remarkable hole cutting three bulk zones of high-grade mineralization at Ramp as well as expanding the footprint of the system." The results demonstrate continuous mineralization from surface to over 1,450 meters vertical depth at the Apollo system.

Key Highlights

• 83.75 meters at 21.14 g/t Au, 17 g/t Ag from 649.00 meters downhole (1,335 meters below surface), including 20.80 meters at 51.36 g/t Au and 1.15 meters at 734.00 g/t Au
• 54.55 meters at 7.04 g/t Au, 16 g/t Ag from 378.65 meters downhole (1,132 meters below surface), including 17.85 meters at 11.37 g/t Au
• 81.50 meters at 4.24 g/t Au, 8 g/t Ag from 469.50 meters downhole (1,200 meters below surface), including 26.00 meters at 8.85 g/t Au
• The Ramp Zone mineralized envelope now spans 315 meters along strike, 100 meters in width, and 350 meters vertically
• The Company reported a cash position of US$135 million as of December 1, 2025, with 45.3% insider ownership of outstanding shares
• A total of 169,500 meters of drilling has been completed to date, with 111,000 meters at the Apollo system
• The 2026 drill program targets up to 100,000 meters with 14 rigs authorized, including an increase from 5 to 7 rigs at Ramp

Strategic Context

The Ramp Zone is a key component of the broader Apollo system at Guayabales. The results from APC150-D1 expand the known footprint of high-grade mineralization at depth and confirm the continuity of the system from near surface through to over 1,450 meters below surface. The Ramp Zone sits at approximately 1,000 meters above sea level.

The Company also reported results from hole APC143-D4, which returned 69.25 meters at 1.00 g/t gold and 4 g/t silver from 11.10 meters downhole (978 meters below surface). The Company continues to advance its aggressive drilling campaign with the addition of two new rigs dedicated to the Ramp Zone, bringing the total to seven rigs targeting this area.

What to Watch Next

• Continued assay results from the 2026 drill program, which targets up to 100,000 meters
• Expansion of the Ramp Zone mineralized envelope as additional rigs are deployed
• Further delineation of the Apollo system at depth and along strike
• Progress toward a resource estimate incorporating the latest drill results

About Collective Mining Ltd.

Collective Mining Ltd. is a gold exploration company headquartered in Miami, Florida, with operations focused on the Guayabales Project in the Department of Caldas, Colombia. The Company's flagship Apollo system hosts multiple high-grade zones, including the Ramp Zone. Collective Mining also holds the optionable San Antonio Project. The Company trades on the TSX and NYSE American under the ticker CNL.

Read the full press release here.

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