Andina Copper Discovers Major Gold-Rich Porphyry System in Argentina

Andina Copper Corp. (TSX-V:ANDC) (FSE:FIR) (OTCQB:PMMCF) has announced a significant expansion of its copper-gold-silver discovery at the Piuquenes East project in Argentina's San Juan Province. The company's drill hole PIU09, only the third at this site, intersected a remarkable 126 meters at 0.46% copper, 0.53 g/t gold, and 2.14 g/t silver from 529 meters depth, all within a broader 402-meter mineralized interval. This discovery confirms a new vertically extensive gold-rich porphyry system within the Piuquenes-Altar cluster, with increasing gold grades and intensifying porphyry-style veining observed at depth, suggesting proximity to the mineralized core. The mineralization is hosted within strongly veined dioritic porphyry with intense sericitic alteration overprinting potassic assemblages, indicating substantial telescoping of the system and potential for a potassic gold-rich core at deeper levels.

The company is actively pursuing this promising discovery with follow-up drilling already underway. Hole PIU11 is designed to test the northern continuity of the Cu-Au-Ag mineralized porphyry system, positioned to intersect geophysical anomalies identified through Induced Polarization (IP) and Magnetotelluric (MT) surveys. Simultaneously, a second drill rig has commenced testing a strong, deep-seated MT anomaly at Piuquenes North, immediately adjacent to the Piuquenes Central deposit, as detailed in the company's previous exploration update. This anomaly, characterized by its significant vertical extent starting approximately 600 meters below surface, may represent a deeper magmatic-hydrothermal source for the mineralization observed at Piuquenes East and Central, suggesting the currently defined mineralization could be upper-level expressions of a larger system.

These developments build upon earlier successes, including the initial discovery hole PIU06 from April 2025, which intersected 98 meters at 0.49% copper and 0.16 g/t gold. The integration of MT data with existing IP datasets, drilling results, and structural interpretation has significantly improved the geological understanding of the Piuquenes project area. The company's technical team, led by Qualified Person Gustavo Zulliger, has implemented rigorous quality assurance protocols throughout the drilling and analysis process, with samples processed through independent accredited laboratories. Interested parties can access the company's corporate presentation for more detailed information about these exciting developments in one of the world's premier copper-producing regions.