en.Wedoany.com Reported - On May 5, 2026, at the proEXPLO 2026 conference, Rafael Roberto, Senior Geologist at First Quantum Minerals, stated that the La Granja copper mine project located in northern Peru has copper reserves of approximately 22 million tonnes, classifying it as a large-scale copper project. The project is a copper porphyry system, composed of overlapping porphyry systems and hydrothermal breccia complexes, with mineralization controlled by northwest and northeast trending structures.

Roberto emphasized that the La Granja copper project has a high content of primary chalcocite, which helps improve copper grades, while the distribution of arsenic elements impacts metallurgical costs. He mentioned that historical drilling data contains noise, and many old drill holes failed to fully penetrate the mineralized structures. The team reinterpreted the data using new methods, refined geological unit boundaries, identified mineralization-related faults, and constructed a block model integrating geological, structural, and metallurgical variables. These advances have reduced project uncertainty and optimized evaluation and development strategies. The scale of the copper reserves further solidifies the La Granja copper project's position as a significant copper asset in Peru.

It is reported that the project's copper reserves rank among the top copper projects in Peru, and its development prospects are drawing attention.

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