Copper Surges as Supply Tightens and Mining Outlook Weakens

Copper prices advanced sharply on Thursday as tightening global supplies and concerns over weakening mine production boosted market sentiment. The rally also gained support after the US Federal Reserve kept interest rates unchanged, easing fears of tighter monetary conditions, while investors looked past the absence of fresh economic stimulus measures from China.

The most active September copper contract on the COMEX exchange rose by nearly 3% during the session before settling around 2.2% higher at $6.45 per pound. The metal has appreciated more than 14% since the beginning of 2026 and is now trading close to the record highs achieved in early June. On the London Metal Exchange (LME), copper also recorded healthy gains, with prices rising to approximately $13,753 per metric ton, maintaining a significant premium for US copper over international benchmarks.

Market fundamentals continue to indicate tightening availability. LME copper contracts for immediate delivery traded above three-month futures, creating a backwardation structure that typically reflects strong near-term demand and limited supply. Exchange inventories have declined by more than 10,000 metric tons this week, while import premiums in China recently reached their highest level since 2022, highlighting robust physical demand in the world's largest copper-consuming nation.

Supply concerns remain a major driver of the rally. Chilean state-owned miner Codelco, the world's largest copper producer, acknowledged that restoring production to pre-pandemic levels is no longer achievable within its earlier timeline. Company leadership warned that output will remain constrained, with projected 2026 production expected to stay well below previous long-term targets.

Additional disruptions have emerged from severe storms in Chile, which have affected mining operations and logistics. At the same time, the International Energy Agency warned that shortages of sulphuric acid, a key input used in copper extraction, could threaten more than one-seventh of global copper production. One potential source of supply relief could come from the planned restart of the Cobre Panama mine, where progress toward reopening continues.

On the macroeconomic front, the US Federal Reserve maintained interest rates, although several policymakers favored a rate increase due to inflation concerns linked to geopolitical tensions. Stable borrowing costs generally provide support to industrial metals by improving expectations for manufacturing and construction activity.

Meanwhile, Chinese policymakers signaled continued support for economic growth during the latest Politburo meeting but stopped short of unveiling new stimulus measures. Markets remain hopeful that additional spending aimed at boosting manufacturing and domestic consumption will eventually support industrial metal demand. Until then, persistent supply constraints continue to dominate the copper market and keep prices elevated.

Impact on Products and Chemical Commodity Prices

Higher copper prices are expected to increase production costs for electrical wires, cables, transformers, motors, electronics, renewable energy equipment, and construction materials that rely heavily on refined copper. Manufacturers may pass these higher input costs to downstream industries if supply tightness persists. For chemical commodities tracked by ChemAnalyst, the direct impact is expected to remain limited. However, prolonged disruptions in mining operations and sulphuric acid shortages could strengthen sulphuric acid prices due to rising demand from copper leaching operations. Elevated mining activity costs may also indirectly support prices of industrial chemicals and mining reagents used across metal extraction and processing sectors.