Key Takeaways:
London copper climbed to a record $14,533 a tonne Monday, up 0.8 percent, as metal shipments to the US drained available LME warehouse stocks and tightened spot supply.
The rally is driven more by tariff-triggered metal transfers than strong end demand — a localized shortage rather than a global demand surplus — Cristián Cifuentes, senior analyst at Chilean copper industry think tank Cesco, said.
Comex copper has held a premium over LME since Trump first proposed tariffs last February, opening an arbitrage window that has moved tens of thousands of tonnes to the US. LME available inventories fell to crisis lows in August, forcing a large-scale short squeeze, and London spot metal still trades above the three-month contract in backwardation.
Copper is up 17 percent this year and 47 percent over 12 months, surpassing January's prior record. Chile's August export revenue fell to its lowest in over a year, and global mine supply is on track for its first annual decline since 2017 unless the second half recovers.
The record print came even as US exchanges were closed for Labor Day and broader risk appetite was under pressure, showing the strength of the tariff trade. The Commerce Department's report to the White House on whether duties are warranted was due roughly two months ago but remains pending, keeping the market pricing the possibility of primary copper import tariffs.
While total global copper inventories remain relatively ample, their geographic distribution has shifted heavily toward the US, sharply reducing the metal available across LME's global warehouse network. That imbalance has compressed short-term market liquidity, pressuring holders of short positions even as end demand stays subdued.
Strong demand growth combined with supply challenges should push the market's supply-demand balance tighter and support elevated prices, Michael Cuoco, head of metals at StoneX Financial Inc., wrote in a note.
Supply-side pressure is building even as high prices lift miner earnings. Rio Tinto Group, BHP Group, Glencore Plc and Zijin Mining Group all posted strong profit growth in their latest results, driven by copper.
Yet several large miners have faced operational setbacks this year, and structural pressure has not eased with prices. An aging global mine fleet and capacity that cannot keep pace with demand from data centers, renewable energy and power infrastructure underpin the long-running deficit narrative.
High prices themselves pose a demand-side risk, as buyers may seek substitutes, though such pressure has not yet formed a clear obstacle to the rally. Rising US borrowing costs and geopolitical tensions add potential headwinds to the outlook.
This article is for informational purposes only and does not constitute investment advice.
