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    Los Bronces–Andina JV: integrated mine plan implications for planners and geotechs

    June 25, 2026|

    Reviewed by Tom Sullivan

    Los Bronces–Andina JV: integrated mine plan implications for planners and geotechs

    First reported on International Mining – News

    30 Second Briefing

    Anglo American, via its 50.1%-owned Anglo American Sur SA, and Codelco have finalised a definitive agreement to run a joint mine plan for the adjacent Los Bronces and Andina copper operations in central Chile, after securing all competition and regulatory approvals. The integrated planning covers two large-scale open pits sharing the same Andean district, enabling coordinated sequencing of ore bodies, waste dumps and tailings storage across property boundaries. For mine planners and geotechnical teams, this opens scope for shared slope design, haul road rationalisation and potentially consolidated infrastructure for high-altitude water and power supply.

    Technical Brief

    • Governance will require joint technical committees for mine planning, geotechnical design, and long-term resource scheduling across both assets.
    • Data sharing on geology, geotechnical domains and hydrogeology becomes formalised, enabling unified block models across the district.
    • Cross-boundary planning is expected to influence future tailings site selection, closure sequencing and long-term landform design.

    Our Take

    The related joint mine plan article dated 24 June 2026 indicates Los Bronces–Andina is targeting 2.7 Mt of additional copper over 21 years with minimal new capex, signalling that this JV is primarily about optimising existing Chilean infrastructure rather than greenfield expansion.

    Regulatory clearance for the Joint Mining Plan noted in the 26 March 2026 piece, including sign-off from China’s SAMR, suggests Anglo American Sur SA’s 50.1% ownership structure has already been stress-tested for competition concerns in key copper offtake markets.

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    Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.

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