Copper prices have surged to near-record levels as markets continue to price in the possibility of new U.S. import tariffs. The rush to move material into the United States has tightened global supplies and pushed physical market indicators higher, but any deviation from current tariff expectations could challenge the premium built into prices.
Copper Near Historic Highs as Physical Market Tightens
Copper is currently trading above $14,000 per tonne, close to an all-time high. At the same time, inventories on the London Metal Exchange (LME) have continued to decline, while the cash-to-three-month spread has moved further into backwardation, signalling increasingly constrained near-term supplies.
Over recent months, traders have positioned aggressively ahead of potential U.S. tariffs, with the impact becoming increasingly evident across inventories, trade flows and physical market dynamics.
Tariff Expectations Continue to Shape the Market
Imports of copper into the United States have accelerated as buyers seek to secure supplies before any new duties take effect. COMEX inventories have climbed to record levels, while U.S. imports exceeded 200,000 tonnes in July alone, marking the highest monthly total in at least 12 years.
Meanwhile, conditions in the London market have tightened considerably. LME inventories have fallen to their lowest level in five months, and the cash-to-three-month spread has widened to approximately $120 per tonne in backwardation, compared with around $40 only a week earlier. The spread is now at its widest since October, reflecting growing pressure on immediate supply.
Strong Fundamentals Continue to Support Copper
Although tariff expectations have played a major role in the recent rally, they are not the only factor underpinning prices.
Mine supply growth remains limited, while persistently low treatment charges continue to indicate tight availability of copper concentrate. Demand from electrification projects, power grid expansion and artificial intelligence infrastructure also continues to provide structural support.
Current forecasts still point to a global refined copper deficit of around 35,000 tonnes in 2026.
Policy Outcome Could Trigger a Repricing
A significant portion of the latest price gains reflects the assumption that tariffs will be introduced largely as expected.
However, if the final measures are delayed, prove more limited than anticipated or exclude refined copper, some of the tariff-related premium could quickly unwind. Stockpiling into the United States would likely slow, inventory movements could begin to normalise, and supply tightness outside the U.S. may gradually ease.
Any reversal could be magnified if investors unwind positions that were established primarily in anticipation of tariff measures.
Fundamentals Likely to Regain Centre Stage
The prospect of U.S. tariffs has already reshaped the global copper market, influencing inventory flows, tightening physical supplies and driving prices back towards record territory.
With much of that repricing already complete, attention is likely to return to the underlying supply-and-demand balance once the tariff decision is announced.
While that could result in a short-term correction if expectations are not met, it would not necessarily alter the longer-term outlook. Instead, any pullback would more likely reflect a reassessment of tariff-related pricing rather than a deterioration in copper’s fundamental market outlook.