Copper Holds Above $13,000 as Tariff-Driven Supply Distortions Deepen

Copper is trading in a range most seasoned procurement professionals have never budgeted for. The metal is holding above $13,000/t on the London Metal Exchange, a level that was unthinkable two years ago when the market languished below $8,000. The rally isn't fundamentally driven by a supply deficit — the International Copper Study Group projects a surplus of roughly 200,000 tonnes in 2026. It's being driven by a tariff-induced dislocation of global copper stocks that shows no sign of resolving.

The numbers are stark. LME-registered inventories have shrunk 65% from the start of the year to roughly 361,600 tonnes. Available on-warrant tonnage is closer to 105,000 tonnes — barely enough to cover a few days of global consumption. Meanwhile, COMEX warehouses in the United States are overflowing. CME copper stocks have ballooned to 184,464 tonnes, more than double where they stood at the end of 2025. Metal is flowing in one direction: from LME warehouses into US storage, driven by the threat of tariffs that could reach 25% on copper imports.

The tariff story is now the dominant price driver, not supply-demand fundamentals. The US has not yet imposed copper-specific tariffs, but the threat alone is enough. Traders and producers have pre-positioned metal on US soil to beat any eventual levy. This creates a physical premium for copper deliverable into the US market that ripples backward through the supply chain. LME copper for delivery in Asia or Europe trades at a discount to US-deliverable metal, even though they're the same commodity.

The ICSG's latest data confirms that the underlying balance is loosening. Global refined output rose 3.1% in the first five months of 2026 compared to the same period last year, while demand growth was closer to 1.5%. China, which consumes half of the world's copper, has seen manufacturing PMIs hover at or below the 50 expansion threshold for three consecutive months. Chinese copper imports fell 4.2% in June compared to May. The country's property sector — a massive consumer of copper wiring and tubing — remains in contraction.

But the surplus is theoretical when the metal isn't where buyers need it. A European cable manufacturer sourcing from LME warehouses in Rotterdam faces a market where available tonnage is measured in the low thousands. A Chinese fabricator relying on Shanghai Futures Exchange warehouses finds stocks at multi-year lows. The surplus exists, but it's locked up in COMEX sheds in Arizona and Utah, awaiting a tariff determination that may or may not come.

Analyst views are split on where copper goes from here. The World Bank's April 2026 Commodity Markets Outlook projects an average copper price of $12,500/t for the full year — implying downside from current spot levels. Morgan Stanley sees copper averaging closer to $11,800/t in H2 as Chinese demand softens and mine supply grows. But Goldman Sachs maintains a $15,000/t target for year-end, arguing that the structural electrification story will overwhelm cyclical weakness. The disagreement isn't about direction — it's about when the structural bull thesis reasserts itself.

Mine supply is improving, which should eventually pressure prices. New capacity from the Democratic Republic of Congo, Chile, and Peru is expected to add roughly 800,000 tonnes of annual production by the end of 2026. But concentrate markets remain dysfunctional. Treatment and refining charges — the fees miners pay smelters to process ore into metal — are at record lows near $2.50 per dry metric tonne, down from $90/t in late 2023. This signals that mine output is still struggling to keep pace with smelter demand, despite the headline surplus projection.

The forward curve tells its own story. LME copper is in a shallow backwardation through the September contract, then flips to contango. The market is pricing near-term tightness and medium-term relief. For a procurement director planning Q4 purchases, this curve structure suggests waiting if possible — but the risk is that another tariff escalation, a mine strike in Chile, or a currency shock pushes prices higher before the loosening arrives.

Chinese stimulus remains the wild card. Beijing has signaled infrastructure investment acceleration in H2 2026, targeting grid expansion and EV charging networks. If these programs materialize at scale, they could absorb the surplus faster than mine supply can grow. The copper market has repeatedly underestimated Chinese policy-driven demand. A credible stimulus package would challenge every bearish forecast currently on the table.