Andina Copper Reports up to 9.43% Cu and 2.2 g/t Au from Rock-Chip Samples at Mantau, Antofagasta, Chile

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[{"type":"text","content":"November 13, 2025  – TheNewswire - Vancouver, British Columbia - Andina Copper Corporation (Andina) (the Company) (CSE:ANDC) (FSE:FIR) (OTCQB:PMMCF) is pleased to report key findings and results from its initial geological field evaluation and sampling program at the Mantau copper-gold project in northern Chile’s Antofagasta region. Mantau Cu-Au Project Highlights: Multiple historical copper workings occur within a 4,500ha tenement package located in the low-altitude Coastal Cordillera of Chile with excellent access and nearby infrastructure.  Highly prospective district hosts multiple significant deposits including Marimaca Copper’s MOD Deposit (200Mt @ 0.45% Cu) and Antofagasta PLCs Cachorro discovery (300Mt @ 1% Cu, 4g/t Ag). (referFigure 1)  Rock chip sampling returned further high-grade gold and copper results including 9.32% Cu, 0.40 g/t Au 9.43% Cu, 0.21 g/t Au and 5.81% Cu, 2.2 g/t Au. Results significantly expand the footprint of anomalous copper-gold mineralization to over 3km and outline new areas for follow-up exploration (refer Figures 2 and 3).  Potential identified for IOCG and stratabound Manto style copper and gold mineralization similar to Marimaca Copper Corp’s (TSX-V:MARI) recent nearby Pampa Medina sulphide copper discovery1 (refer Figure 1)  Field Evaluation and Sampling Highlights: Andina Copper has completed an initial geological review, including mapping and reconnaissance rock-chip sampling, to validate historical results and outline new mineralized areas where previous work by Rugby Resources returned rock chip samples of up to 28.6% Cu, 5.91g/t Au. Rock chip sampling returned five additional assays > 1% Cu and eight >0.1g/t Au. A drone-based photogrammetry survey was completed to produce a new high-resolution Digital Elevation Model (DEM) in support of follow-up mapping and geophysics. An orientation survey successfully refined soil sampling techniques suitable for use across the weathered terrains typical of the area. Planning for a follow-up exploration program incorporating grid-based soil sampling and geophysical surveys (mag, IP and MT) to define drill targets has commenced. President & CEO Joseph van den Elsen commented: “We are very pleased to have validated historical high-grade Cu and Au results and to have significantly expanded the area of interest at...

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