VANCOUVER, BC — January 12, 2026 — Leads & Copy — Luca Mining Corp. (TSXV: LUCA, OTCQX: LUCMF, Frankfurt: Z68) has announced promising drill results from its Phase 2 exploration at the Campo Morado polymetallic VMS mine in Guerrero State, Mexico.
The drilling program continues to define wide, high-grade, gold-rich VMS mineralization at the Reforma Deposit and near active underground workings. Surface drillhole CMRF25-13 intersected 25.1 meters of 8.31 g/t AuEq, including 4.9 meters of 11.32 g/t AuEq. Surface drillhole CMRF25-15 returned 55.8 meters of 5.90 g/t AuEq, including 7.7 meters of 10.09 g/t AuEq. Underground drillhole CMUG-25-25 intersected 4.0 meters of 1.04% Cu from a previously unmined zone within approximately 60 meters of existing underground workings.
The latest drilling at the Reforma Deposit and adjacent near-mine targets confirms robust, gold-rich VMS mineralization, laterally extensive and positioned close to existing underground development. According to Luca Mining, this combination supports the potential for near-term conversion of exploration success into mineable resources, increased precious-metal contribution to mill feed, and incremental mine-life extension with limited new infrastructure requirements.
Surface drillholes CMRF25-12 through CMRF25-16 were collared within and around the Reforma Deposit and intersected significant intervals of massive sulfide mineralization, including:
CMRF25-13: 25.1 meters of 8.31 g/t AuEq, including 4.9 meters of 11.32 g/t Au.
CMRF25-15: 55.8 meters of 5.90 g/t AuEq, including 7.7 meters of 10.09 g/t AuEq, with strong copper and zinc.
CMRF25-12: 9.1 meters of 7.11 g/t AuEq, highlighting high precious-metal enrichment.
CMRF25-14: Multiple zinc-rich massive sulfide intervals, including 3.3 meters of 4.29 g/t AuEq.
Underground drillholes CMUG-25-25 and CMUG-25-26 targeted extensions of the C752 and C108 mineralized bodies, both currently under mine development, successfully intersecting mineralization from previously unmined areas, including:
CMUG-25-25: 4.0 meters of 1.04% Cu, with associated gold and silver, from a zone located within approximately 60 meters of existing underground workings.
A second surface drill rig was mobilized in December to test previously undrilled, high-priority VMS targets across the Campo Morado camp. 7,218 meters of surface drilling completed across Reforma, El Rey and a new previously undrilled target – Reforma Deeps. 8,440 meters of underground drilling completed to date as part of the 10,000-meter Phase 1 and Phase 2 near-mine expansion program. Metallurgical samples from Reforma and El Rey collected for recovery testing. Drilling continues at Reforma and El Rey, with additional underground drilling planned to target the Largo, Naranjo and Fish deposits, which form part of the 2026–2028 mine plans.
Luca’s VP of Exploration, Paul D. Gray, stated that the results confirm Reforma hosts a larger and more gold-rich VMS system than previously understood and that Luca has expanded drilling at Reforma and mobilized a second surface rig to accelerate testing of additional high-priority targets across the Campo Morado camp.
To date, 36 underground diamond drillholes totaling 8,440 meters are complete at the Campo Morado mine using “HQ” and/or “NQ” sized diamond drill core. In addition, 7,218 meters have been drilled from 26 surface drillholes at the Reforma, El Rey and Reforma Deeps targets using “HQ” and/or “PQ” sized diamond drill core. Based on the strength of surface drilling results to date, Luca has added a second drill rig and an additional 10,000 meters to the exploration campaign.
Luca Mining Corp. is a Canadian mining company with two wholly owned mines located in the Sierra Madre mineralized belt in Mexico. These mines produce gold, copper, zinc, silver, and lead.
Paul D. Gray, P.Geo., Vice-President Exploration at Luca Mining, is the qualified person who reviewed and approved the technical information in this release.
Contact:
Paul D. Gray, P.Geo., Vice-President Exploration at Luca Mining.
Source: Luca Mining Corp.
