BHP is working with SiTration on a two-stage pilot to recover copper from mining-affected water at Copper Cities in Arizona’s Globe-Miami district. BHP says earlier laboratory testing demonstrated production of LME Grade A copper.
An initial stage beginning in August was designed to test continuous, autonomous production over about a month. A larger deployment planned later in 2026 would seek to produce up to two tonnes of copper cathodes.
Copper Cities operated as an open-pit mine from 1954 to 1975, with leaching continuing until 1982. The announcement concerns a pilot and planned expansion, rather than established commercial output.
This brief is based on BHP’s announcement of August 20, 2026. Company statements and forecasts are attributed to their source. This is a summary of the announcement, prepared by Mining Brief, rather than independent on-site reporting.
