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    SiTration–BHP Arizona copper pilot: recovery and tailings value notes for engineers

    August 20, 2026|

    Reviewed by Joe Ashwell

    SiTration–BHP Arizona copper pilot: recovery and tailings value notes for engineers

    First reported on International Mining – News

    30 Second Briefing

    SiTration and BHP have launched two pilot deployments at the historic Copper Cities site in Arizona’s Globe-Miami district to trial SiTration’s copper valorisation technology on legacy material. The programme starts this month with a small-scale pilot focused on validating continuous, autonomous copper production, targeting low-grade or previously uneconomic resources. If successful, the approach could offer a route to recover additional copper from historic waste streams at similar brownfield sites without major new excavation.

    Technical Brief

    • Pilot is located at BHP’s Copper Cities operation within Arizona’s historic Globe-Miami copper district.
    • SiTration’s process is framed as a “valorisation” technology, targeting value recovery from legacy or secondary materials.
    • Continuous, autonomous operation is a stated design goal, implying minimal operator intervention and high process automation.
    • Collaboration structure pairs a technology start-up (SiTration) with a major copper producer (BHP) on BHP-owned ground.

    Our Take

    SiTration’s Arizona pilot with BHP follows the earlier five‑week BHP Invent/Copper South Australia trial on copper waste streams, signalling that the electro‑extraction tech is moving from short bench‑scale campaigns into site‑specific field deployments across multiple continents.

    The US Department of Energy’s commitment of up to $162 million for tailings and abandoned mine recovery projects, which also lists SiTration among the participants, suggests that work at historic sites like Copper Cities could be well positioned to tap complementary federal support if the pilot scales.

    With copper prices in our database recently flagged around $14,500/t and described as a ‘structural squeeze’, pilots in legacy Arizona districts such as Globe‑Miami are strategically timed to monetise low‑grade or stranded copper units that were uneconomic at earlier price regimes.

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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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