- Hole MD-052 expands the porphyry-related high-grade core, intercepting 208-metres grading 0.68% CuEq* (0.47% Cu and 0.04% Mo), starting at 768-metres and within a broader interval of 343-metres grading 0.53% CuEq* (0.36% Cu and 0.03% Mo), starting at 692-metres. Hole ended at drill capacity over strong mineralization.
- The recently discovered third high-grade zone remains open laterally and at depth, with targeted step-out drilling planned for the 2026 campaign to continue expanding this zone.
Copper Giant Resources Corp. (“Copper Giant” or the “Company”) (TSXV: CGNT, OTCQB: LBCMF, FRA: 29H0) is pleased to report assay results from drill hole MD-052, successfully expanding the recently discovered porphyry-related high-grade mineralized zone at depth and southward toward the Estrella zone. This new intercept provides better constraints on Cu–Mo grade distribution and confirms that this high-grade zone remains open laterally and at depth. Two drill rigs continue operating as part of Copper Giant’s 14,000-metre resource expansion program at the flagship Mocoa copper-molybdenum project in Putumayo, Colombia.
“MD-052 builds directly on the success of MD-047 and MD-050, extending the recently discovered third high-grade zone and reinforcing the geometry of this emerging porphyry center. The zone remains open laterally and at depth, supporting continued improvements to the copper and molybdenum grade profile. These results demonstrate strong continuity of mineralization and meaningful potential for future resource growth within this multi-phase system. Notably, the high-grade trend also projects southward toward the La Estrella target, indicating potential extension of this zone into a shallower area and opening an important new front for expansion” – Edwin Naranjo Sierra, Vice-President of Exploration.
Hole MD-052 shares the same strategic objectives of previous hole MD-050:
(1) to connect East Valley geology with the Mocoa porphyry system,
(2) to extend at depth the high-grade Cu-Mo mineralization seen at the end hole MD-047 (refer to news release dated 2025-07-30) and
(3) to connect the high-grade copper-moly mineralization observed in hole MD-046 (refer to news release dated 2025-05-06) to the recently discovered high grade mineralization of the East Zone and strengthening the model that the high-grade corridor may continue south and connect with the Estrella zone (Figure 1 and 2).
These results build directly on the Company’s recent 2025 Mocoa Mineral Resource Estimation (MRE)1 update of Inferred Mineral Resources of 12.7 billion pounds (Blbs) copper-equivalent (CuEq*) at an average grade of 0.51% CuEq*, including 7.6 Blbs of copper at 0.31% Cu and 1.0 Blbs of molybdenum at 0.039% Mo, within a total of 1,120 million tonnes (Mt).
Drilling continues with two rigs as the Company advances the 2025/2026 drilling plan, which will focus on expanding this high-grade zone through targeted step-outs and directional drilling. This approach is designed to enhance efficiency and cost effectiveness while enabling Copper Giant to test highly prospective areas outside the current MRE footprint, further unlocking the full potential of Mocoa.
Figure 1. Plan view of the exploration targets and the Mocoa porphyry Cu-Mo deposit.*Black dotes denotes drill pads.
Hole MD-052
MD-052 was collared east of the previously drilled area at Mocoa, using the same permitted pad as holes MD-048 and MD-050 in the East Valley zone. The upper 400-metres of the hole intersected a strong chlorite altered late-stage and low-grade porphyry intrusion with (Figure 3A) cutting a low-grade volcanic sequence of the Saldaña Formation, consistent with the transitional units observed elsewhere on the eastern flank of the system. Below this depth, the hole entered the characteristic Mocoa pyrite- to phyllic-halo alteration, with sericite-altered inter-mineral porphyry hosting multiple generations of D-type veinlets overprinting predominantly early B-type veinlets (Figure 3B).
At 859-metres downhole, MD-052 intercepted a strongly potassic-altered (secondary biotite) early microdiorite porphyry (Figure 3C), with dense stockwork-style A- and B-type veinlets marking the core of the mineralized system. Due to drill-rig capacity, the hole was terminated in a brecciated porphyry exhibiting intense chlorite–sericite alteration overprinted early potassic (K-feldspar) alteration. The breccia contains fragments completely obliterated due the intensity of the hydrothermal alteration, with molybdenite and minor chalcopyrite occurring as matrix and veinlet in-fill (Figure 3D).
Integrated with results from MD-046 (refer to news release dated 2025-05-06), MD-047 (refer to news release dated 2025-07-30), and MD-050 (refer to news release dated October 7, 2025), MD-052 extends the recently discovered high-grade porphyry-related zone by approximately 200-metres at depth (Figure 4) and 250-metres southward close to past hole M20 (Figure 2), which was a short hole that did not reach this target zone. This southward and downward expansion suggests the system is more extensive than earlier drilling indicated, with mineralization remaining open in multiple directions.
Most importantly, the orientation and consistency of the high-grade trend now clearly project toward the La Estrella area, significantly reinforcing the geological interpretation that a second porphyry center may be present south of the existing Mocoa resource footprint. This emerging vector not only highlights a previously untested target corridor but also underscores the potential multi-centered porphyry nature of the Mocoa system, significantly expanding the exploration potential southward into an area where the system is expected to occur at shallower depths.
Figure 2. Plan view of MD-052 and previous holes mentioned in this release, with the interpreted extension of the recently discovered high-grade porphyry-related zone at Mocoa. White shadow denotes position of the cross-section shown in figure 4 *For MD-052: azimuth of 275-degrees and dipping 73-degrees. Hole collar is 314329E, 137929N and 1669 m.a.s.l. Coordinates are UTM system, zone 18N and WGS84 projection. Copper equivalent (CuEq) for drill hole interceptions is calculated as: CuEq (%) = Cu (%) + 5.278 × Mo (%), utilizing metal prices of Cu – US$4.00/lb and Mo – US$20.00/lb and metal recoveries of 90% Cu and 95% Mo. Grades are uncut. Mineralized zones at Mocoa are bulk porphyry-style zones and drilled widths are interpreted to be very close to true widths.
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