#Mexico #Luca Mining #High-Grade Gold #Durango #Tahuehueto Mine

High-Grade Breccia Zone Discovery at Tahuehueto Mine

Luca Mining Corp. has made significant strides in its exploration efforts at the Tahuehueto mine, located in Durango, Mexico. In its latest drilling program, the company announced the discovery of a previously unrecognized high-grade breccia zone, showcasing promising assay results that suggest potential resource expansion in the area.

Exploration and Drilling Success

On July 7, 2026, Luca Mining Corp. (TSXV: LUCA) confirmed the successful intersection of high-grade gold mineralization in new breccia zones near existing mine workings. The results indicate the continuity of mineralization, particularly within the Creston vein system. Highlights from the latest drilling results include:

• - 4.7 meters of 6.73 g/t Gold Equivalent (AuEq), comprising 3.35 g/t Au and valuable silver, copper, lead, and zinc indicators, from hole DDH26-246.
• - 4.5 meters of 4.21 g/t AuEq from hole DDH26-SU-14, reflecting a blend of gold and silver resources.
• - Discovery of previously untested areas located between 20 to 35 meters below Level 20, confirming the extension of high-grade breccia zones at depth.

The drilling program's outcomes are anticipated to significantly bolster the resource identification efforts as they indicate mineralization near existing underground infrastructures, which can be integrated into near-term mine planning. According to Paul D. Gray, VP of Exploration, these findings confirm the management's theory regarding the continuance of valuable mineralization below Level 20.

Operational Expansion

At present, Luca Mining employs two diamond drill rigs on-site: one for underground operations and the other focusing on surface drills. So far, the program has completed 54 underground and 25 surface holes, significantly advancing the appraisal of mineral resources at various levels.

These efforts have led to the intersection of valuable vein structures, confirming the high-grade breccia zones already identified in prior drilling. The results from this new undeveloped area propelled the decision to increase the number of drill holes to further delineate this promising target.

Future Outlook at Tahuehueto

The Tahuehueto mine offers a diverse mineralization opportunity. The epithermal gold and silver vein system consists of approximately 11 kilometers of vein structures, where mineralization is still open along strike and depth. This exploration endeavor represents the first significant drilling on this site in over a decade and comes with a renewed commitment to expanding the resource model while potentially integrating new vein structures into existing operations.

As Luca Mining progresses with its 2026 exploration program, the focus remains on identifying additional high-grade mineral zones and testing underexplored veins. Through diligent exploration, the company aims to enhance its resource base significantly and establish a sustainable growth trajectory in the mining sector.

Conclusion

The ongoing developments at the Tahuehueto Mine affirm Luca Mining's position as a prominent player in the resource extraction industry, capitalizing on high-grade discovery opportunities while continually evaluating and expanding its operations. As they forge ahead with this promising drilling program, stakeholders can expect more potential high-value mineralization results from the company’s exploration efforts.