Copper Prices Break All-Time High on LME: Supply Crunch, Falling Inventories Drive Record Rally

Copper prices surged to a fresh record on the London Metal Exchange (LME) on Monday as traders grew increasingly concerned about the availability of metal outside the United States. A softer US dollar provided an additional lift to dollar-denominated commodities, while shifting inventories and persistent uncertainty over US tariff policy kept the market firmly in focus.

Copper Prices Break Record High on LME: Supply Fears Fuel Rally

Benchmark copper on the LME climbed to $14,533 per metric ton, surpassing its previous record of $14,527.50 touched in January. The contract later pared part of the gain to trade at $14,518 by 1515 GMT, but remained 0.7% higher on the day.

Trading activity was expected to remain relatively subdued because of a US holiday. Even so, copper and zinc emerged as the key movers across the base-metals complex as traders assessed the implications of increasingly uneven global inventories.

Copper Rally Driven by Supply Relocation Rather Than Demand Surge

The latest leg of copper's rally is being driven primarily by the changing geography of available metal rather than an abrupt acceleration in global demand.

Large quantities of copper have been directed towards the United States since President Donald Trump first indicated the possibility of import tariffs in February last year. Market participants cited by Reuters said the movement has resulted in a substantial build-up of copper stocks in US warehouses.

Comex copper inventories have now reached a record 766,795 short tons, equivalent to around 695,624 metric tons. While supplies have accumulated in the US, inventories in other major trading locations have tightened, creating a growing imbalance in the physical market.

US Tariff Uncertainty Reshapes Global Copper Flows

The uncertainty surrounding US trade policy has become increasingly important for the copper market because the metal is integral to several major industrial sectors.

Copper is extensively used in manufacturing, construction, electricity infrastructure, electric vehicles and renewable-energy systems. Expectations of tariffs can therefore trigger precautionary stockpiling, with traders seeking to move material into the US before potential import restrictions take effect.

Such flows can temporarily pull metal away from other markets, tightening regional availability even when global production has not changed dramatically.

The result is a market where the overall quantity of copper may be adequate, but the location of those supplies becomes increasingly important for determining prices.

LME Copper Market Signals Physical Tightness

The structure of copper futures is providing another indication that the market is facing tighter near-term availability. Nearby copper contracts have been trading at a premium to later-dated contracts, a market structure known as backwardation. The phenomenon generally indicates that buyers are placing a greater premium on immediate supplies rather than future deliveries.

Higher prompt premiums have encouraged some metal to move back into LME warehouses. However, a significant portion of the material remains earmarked for withdrawal.

Cancelled warrants, which indicate metal scheduled to leave exchange warehouses, accounted for 51% of LME copper stocks. This suggests that more than 121,000 tons of copper could potentially leave the warehouse system in the coming weeks.

The pressure on prompt supplies became particularly pronounced in August, when the premium for cash copper over the three-month contract climbed above $430 a ton. That was the highest level since 2021. Although the premium had narrowed to around $74 by Friday, the market remains highly sensitive to further changes in warehouse stocks and physical availability.

Shanghai Copper Stocks Fall 85% From March Peak

Developments in China are reinforcing concerns over near-term copper availability. Copper inventories held in warehouses monitored by the Shanghai Futures Exchange stood at around 63,000 tons. That represents an 85% decline from the level recorded in mid-March and puts stocks at their lowest since January 2024.

Copper contracts on the SHFE are also trading in backwardation, indicating that buyers in China are placing greater value on immediate supplies.

China remains the world's largest copper consumer, making movements in its warehouse inventories an important indicator for global traders. A sustained drawdown in stocks can signal stronger physical demand or tighter availability, particularly when accompanied by premiums in nearby contracts.