| http://www.w3.org/ns/prov#value | - ge trading houses, producers, users, hedge funds, commodities funds, governments or other investors and speculators. ?? changes in expectations regarding the availability and cost of copper, which is influenced by such factors as: (i) changes in technology used in the extraction and processing of copper ore and the recovery and recycling of copper from above ground stock; (ii) changes in law and r
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