Copper prices reached record highs on global exchanges this week, driven by concerns over potential US tariffs and tightening supply conditions amid strong demand from several key industries. On the London Metal Exchange (LME), three-month copper futures hit an intraday peak above $14,600 per tonne, while prices on the New York Commodity Exchange (Comex) climbed more than 2%, approaching $6.74 per pound. Year-to-date gains for copper stand at roughly 16 to 20%, reflecting sustained upward momentum.
Market participants are closely watching the possibility of new US import tariffs on refined copper. Although refined copper was excluded from tariff measures enacted last year, the US Department of Commerce has previously proposed imposing a 15% tariff starting January 2027, escalating to 30% in 2028. This prospect has prompted American buyers to accelerate stockpiling in anticipation of higher costs, contributing to increased demand for copper imports in the near term. The resulting arbitrage between Comex and LME contracts has encouraged shipments to the US, with inventories on Comex rising significantly, while LME and Shanghai Futures Exchange warehouse stocks have declined to multi-month lows.
Supply constraints have also played a central role in tightening the market. Chile, the world’s largest copper producer, has experienced reduced output due to extreme weather events disrupting mining operations and shipments. Chilean copper production is forecasted to decrease by about 2.6% this year to approximately 5.27 million tonnes. Export values from Chile have reportedly fallen in recent months compared to both the previous month and the prior year. While some recovery in outbound shipments has begun, low inventories and expectations of peak demand leading into October are sustaining price pressures.
Analysts note that although supply interruptions may ease and US stockpiling demand could moderate after the peak season, longer-term fundamentals remain supportive of elevated copper prices. Investment in new mining capacity has been insufficient, and ore grades at existing mines are declining, limiting supply elasticity. At the same time, demand drivers tied to expanding data-center infrastructure, power grid upgrades, electric vehicles, renewable energy projects, and artificial intelligence developments are expected to continue growing over the next several years.
In summary, the copper market is currently shaped by a complex interplay of tariff-related demand surges, weather-related supply disruptions, and structural factors influencing future production and consumption. The metal’s critical role across diverse industrial sectors underscores its importance amid evolving global economic and geopolitical conditions.