High-Grade Sediment Hosted Mineralization Extended at Pampa Medina – 300m Western Step-out SMRD-16 Intersects 10m of 4.2% Cu within 70m of 1.0% Cu

Core Insights - Marimaca Copper Corp. has successfully extended the high-grade sediment-hosted manto system at the Pampa Medina deposit by 300 meters to the west through further drilling, indicating significant potential for resource expansion [1][3][11] - The ongoing drilling program consists of 10,000 meters with three rigs currently operational, focusing on both extensional and infill drilling to define the limits of the mineralized system [1][7][9] Exploration Results - Hole SMRD-16 reported significant intersections, including 70 meters of 1.0% Cu from 434 meters downhole, with high-grade zones exceeding 4.2% Cu [3][4][11] - The mineralized area is confirmed to extend over 1.2 km by 1.2 km, with an average true thickness of 50 to 100 meters, suggesting continuity of mineralization [5][11] - Hole SMRD-15 also demonstrated near-surface oxide mineralization, intersecting 42 meters of 0.51% Cu from 158 meters [3][11] Geological Context - Pampa Medina is characterized as a stratiform or manto-style copper deposit, primarily hosted in Jurassic-Triassic sedimentary units, with mineralization types including both oxides and sulphides [9][10][39] - The geological model has been updated to focus on lower sedimentary units, which are identified as productive horizons for future drilling [10][39] Infrastructure and Development Potential - The proximity of Pampa Medina to existing mines and infrastructure, including powerlines and water pipelines, is expected to facilitate development and reduce permitting risks [3][9] - The low-altitude, flat terrain of the "pampa" valley provides ample space for future facilities and infrastructure, enhancing the project's viability [3][9] Strategic Objectives - The company aims to establish a significant copper production operation, leveraging the advanced-stage asset at the Marimaca Oxide Deposit (MOD) and the exploration potential at Pampa Medina and Madrugador [8][9] - Future plans include advancing the Pampa Medina and Madrugador Oxide projects to increase copper cathode production and extend the mine life [9]