Copper Mine Supply Risks First Annual Decline Since 2017 as US Warehouses Jam With Imports

Sprott Research has flagged that global copper mine supply is at risk of posting its first annual decline since 2017, the latest warning that the industry's project pipeline cannot respond quickly to record prices. The manager noted that higher prices improve project economics but cannot compress every stage of development or rapidly replenish the discovery pipeline, a constraint that feeds through to refined output only with a multi-year lag. The warning lands at a moment when benchmark prices have already tested all-time highs this year on tariff turmoil and a long-run mismatch between supply and demand.

Physical flows, meanwhile, are doing something quite different. A deluge of copper cathode has been arriving into the United States, leaving New Orleans with a logistical logjam as warehousing companies seek approval for additional capacity from Comex to handle ballooning US storage requirements. Record US imports earlier in the summer had already pushed deliveries to their highest level on record, and the concentration of metal in the US leaves the rest of the market looking tighter than headline exchange inventories suggest.

Supply-side responses are emerging but remain slow and capital intensive. Codelco, the world's largest copper producer, has said its restructuring plan could slip to the end of 2026, with job losses potentially coming from selling or shutting less profitable operations or delaying projects. Elsewhere, KCM signed a $498 million deal with a Chinese firm to build what is expected to be Africa's largest copper recovery plant using leaching technology on mine waste, a sign that marginal supply is increasingly coming from secondary and waste-stream sources rather than new greenfield mines.

Nickel is drawing regulatory scrutiny of its own. MMG has moved to ease European Union concerns over its $500 million acquisition of Anglo American's Brazilian nickel business, with regulators worried the deal could tighten ferronickel supply and raise costs for European steelmakers. For buyers, the takeaway is that concentration risk in both copper and nickel is shifting away from geology and toward processing, trade policy and logistics.