McEwen Copper

McEwen Copper, a subsidiary of McEwen Mining, is advancing two key assets: the Los Azules Project in San Juan, Argentina, and the Elder Creek Properties in Nevada, USA. Los Azules is one of the world’s top 10 undeveloped copper projects by resource size, with 1.2 billion tonnes of Indicated resources grading 0.40% Cu and 4.5 billion tonnes of Inferred resources grading 0.31% Cu, plus gold and silver credits. Located in a mining-friendly jurisdiction, Los Azules offers scale, stability, and long-term value. Our 2023 NI 43-101 Preliminary Economic Assessment (PEA) highlights a compelling investment case: • Pre-production CAPEX: $2.5B • Payback: 3.2 years • Mine life: 27 years • After-tax NPV (8%): $2.7B • IRR: 21.2% • Average production: 321 million lbs copper cathode/year Designed for the future, Los Azules uses heap leach SX/EW processing, eliminating the need for a tailings dam and reducing fresh water use and electricity consumption by ~75% versus conventional milling. GHG emissions are projected to drop by 57%, with a clear pathway to net-zero by 2038—positioning Los Azules as a benchmark for responsible, low-carbon copper production. The project’s upside is enhanced by continuous high-grade mineralization and exploration potential. It also offers optionality through the potential application of Rio Tinto’s Nuton™ technology for leaching primary sulphide copper, further increasing recovery and sustainability performance. Recognized as Argentina’s 2023 Exploration Company of the Year, McEwen Copper is driving innovation, transparency, and environmental stewardship across all stages of development. Follow us to stay informed on how we’re building the copper project of the future.