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McEwen Mining Inc. (NYSE: MUX) (TSX: MUX) Announces 2023 Preliminary Economic Assessment and New Base Case Development Strategy for Los Azules Project

  • McEwen’s new PEA presents a new strategy that converts from conventional milling to a heap leach process
  • Three principal reasons for changing the implementation strategy include the company’s environmental footprint, reduced permitting risk, and the advantages associated with the production of fine copper cathodes
  • The copper cathode process eliminates the dependency on third-party smelters, allowing for direct industrial use

McEwen Mining (NYSE: MUX) (TSX: MUX), an asset-rich, diversified gold and silver producer in the Americas with large exposure to copper through its subsidiary, McEwen Copper, owner of the Los Azules copper deposit in Argentina, recently released the results of an updated Preliminary Economic Assessment (“PEA”) on a copper leaching phase of development at the Los Azules project. The 2023 PEA evaluates the economic potential of the project from the perspective of heap leaching with cathodes production. PEAs are completed before pre-feasibility and feasibility studies, which are important parts of the developmental process for mining projects (

The 2023 PEA includes an updated independent mineral resource estimate, which increased to 10.9 billion pounds of copper (Cu) indicated at a grade of 0.40% and 26.7 billion pounds of copper inferred at a grade of 0.31%. McEwen Copper’s Los Azules project is 52% owned by McEwen Mining and is expected…

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