NewsCommodities & ForexCopper Hits New All-Time High as Tariff Uncertainty and Mine Supply Cuts Squeeze Market

Copper Hits New All-Time High as Tariff Uncertainty and Mine Supply Cuts Squeeze Market

Author: Tron Weekly·

Key Takeaways

  • LME three-month copper reached a record $14,533 per metric ton on September 7, trading 0.9% higher at $14,510 and surpassing the previous January peak.
  • CME warehouses held 58% of global visible exchange stocks by the end of July, draining LME availability and creating a backwardated market structure.
  • Global mine production fell 1.1% year-on-year in the first half of 2026, with concentrate output down 2.6%, while refined production rose 2.4% and remained in surplus of roughly 131,000 tons.
  • US copper imports exceeded 220,000 tons in July, with the Congo shipping a record 53,290 tons, or 23.9% of the total.
  • Traders await clarity on whether the Trump administration will extend tariffs to refined copper imports, a decision that could sustain or erode the current price premium.
Copper Hits New All-Time High as Tariff Uncertainty and Mine Supply Cuts Squeeze Market

Copper prices on the London Metal Exchange reached a record high on Monday, September 7, with the benchmark three-month contract peaking at $14,533 per metric ton. Futures later traded 0.9% higher at $14,510, surpassing the previous record set in January. The metal has now gained 16% in 2026 and nearly 47% over the past twelve months.

The surge has been driven by a combination of US tariff uncertainty and weakening mine production, which has intensified competition for copper outside the United States.

Why Did Copper Reach a Record?

The rally reflects more than increased industrial consumption. Fears of potential tariffs on imported refined materials have placed a premium on New York COMEX copper, prompting traders to ship LME copper to the United States. Copper is a widely traded benchmark industrial metal, and its price is often watched as a gauge of broader manufacturing and construction activity.

US copper imports surpassed 220,000 tons in July. Congo shipped a record 53,290 tons, accounting for 23.9% of total imports — a sharp rise from the country's expected annual 2024 import volume of below 32,000 tons.

By the end of July, CME warehouses held 58% of global visible exchange stocks. This inflow of metal into America reduced LME availability, causing nearby London contracts to trade above deferred ones and creating a backwardated market structure — a configuration that typically signals immediate scarcity of deliverable metal.

The result is a price increasingly shaped by the geographical location of inventories rather than global supply alone. Cristián Cifuentes, an analyst at Cesco, described the situation as a local shortage rather than a global surplus of demand.

What Is Happening to Global Mine Supply?

According to preliminary International Copper Study Group data, total mine production fell 1.1% year-on-year in the first six months of 2026, while concentrate output — the major raw material source for smelting — dropped 2.6%.

Output cuts in Chile, Indonesia, and Congo exceeded gains in Peru and Mongolia, according to the WSJ. Bringing new copper mines into production typically takes many years, which limits how quickly supply can respond to higher prices.

Reduced mine output has helped support prices even as the refined sector remains in oversupply. Refined copper production rose 2.4% in the first half of the year, producing an excess of roughly 131,000 tons relative to demand, compared with a surplus of 114,000 tons last year.

August marked Chile's lowest level of copper export earnings in more than a year. Without a second-half recovery, total global mined supply could fall on an annual basis for the first time since 2017.

How Are US Tariffs Reshaping Copper Trade?

Washington has already levied duties on covered copper items and derivatives. Traders are now seeking clarity on whether President Donald Trump will extend the tariffs to refined copper imports.

According to Reuters, a Commerce Department recommendation that was due before the summer has not led to any public announcement. This has kept the COMEX premium alive and encouraged stockpiling in the US, though prices remain vulnerable to any new announcement. ING has noted that an exclusion for refined copper could reduce the tariff premium.

Is the Copper Rally Relevant to Crypto?

The Bull Theory highlighted copper's record run on the London Metal Exchange in a post on X, citing tariffs and supply pressures, and noted copper's use in smartphones, electric cars, and electrical circuits.

https://x.com/BullTheoryio/status/2097039701492568276

BREAKING: Copper just hit an all time high on the London Metal Exchange, the world's benchmark market for metals. It's up 17% in the past year alone, driven by expectations that Trump will expand tariffs on refined copper imports. Copper powers everything from smartphones to… pic.twitter.com/lPUkrf5G4Q — Bull Theory (@BullTheoryio) September 7, 2026

Bitcoin miners require large power connections, and copper is also used throughout electrical cables and transformers. Cryptocurrency mining is among the factors contributing to rising power demand, according to the United States Energy Information Administration. The International Energy Agency recognizes copper as one of the key metals in power grids.

Outlook

Copper pricing in the near term will be influenced by US tariff certainty, mine productivity, and the dispersion of exchange stocks. High prices, financing expenses, and manufacturing weakness could weigh on demand, while continued demand from grids, data centers, and electrification may keep supply concerns in focus. How policymakers resolve the refined-copper tariff question, and whether mining output stabilizes in the second half, are likely to determine whether the current dislocation between US and global copper markets persists or unwinds.