U.S. tariff threats have triggered a panic-driven “rush to export,” and global copper inventories are undergoing a heart-stopping transoceanic great migration. For the first time, the market has drawn an equals sign between “national security” and the red metal, copper. As 2025 approaches its curtain call, the copper market has stolen the spotlight with an unprecedented upward frenzy. On December 22, copper prices on the London Metal Exchange (LME) refreshed the historical record, at one point nearing the USD 12,000-per-ton threshold. The market is sprinting toward the largest annual gain since 2009.
Price Sprint
Copper’s year-end sprint has been spectacular and turbulent. With only a few trading days left in 2025, LME copper prices staged a nerve-racking year-end surge. Both bulls and bears in the market have fixed their gaze on USD 12,000 per ton—an unprecedented psychological threshold. Data shows that as of the morning of December 22, Shanghai time, copper prices rose 0.7% to USD 11,966.50 per ton. This price is nearly 50% higher than the year’s low, making 2025 one of the strongest years for the copper market in more than a decade.
Turn the clock back seven months, and a hurricane sweeping through the global copper market had already taken shape in the making. On July 8, 2025, a piece of news instantly detonated the global metals market—U.S. President Trump announced on social media that he planned to impose a new 50% tariff on all imported copper. Although the specific effective date was not determined, the Commerce Secretary later hinted that the new tariff might be implemented in late July or early August. This news was like a heavy bombshell, and the market immediately reacted in panic. New York copper futures prices spiked 13% in a single day, setting the largest increase in nearly 56 years. Even more shocking, the premium of New York copper prices over London once reached as high as 25%, forming an “unprecedented” price spread.
The market’s instinctive reaction was arbitrage. Global traders moved swiftly, setting off an unprecedentedly large “transoceanic great migration” of copper metal. Traders bought spot cargo, sold short on the LME to lock in risk, and then shipped copper to the United States, attempting to earn the spread from the rise in spot prices. This series of operations led to dramatic changes in the distribution of global copper inventories. The market’s response to this was rapid: the COMEX–LME spread expanded quickly, at one point nearing USD 3,000 per ton, far exceeding their stable spread average of USD 300 per ton.
The Supply “Ceiling”
The abnormal movement of global inventories quickly sounded the alarm. The core driving force behind this transoceanic arbitrage frenzy was the sharply intensifying worry that global supply would tighten further. LME copper inventories have plunged since mid-February, falling from about 270,900 tons to 97,400 tons, a drop of more than 64%. By contrast, COMEX copper inventories surged from under 100,000 tons to over 221,000 tons. But this is only the surface; deeper supply–demand imbalances are fermenting. Copper concentrate supply has entered a historic-level squeeze.
Global copper mine supply is facing an unprecedented “ceiling effect,” forming a stark contrast with booming demand. In the first half of 2025, production at multiple large copper mining companies fell short of expectations, and they successively lowered full-year production guidance. The combined output of major global copper miners in the first half rose only 1.28% year-on-year, far below expectations at the beginning of the year.
Unexpected events further intensified the supply tightness. According to Futures Daily, the Grasberg mine operated by Freeport-McMoRan began halting production in September; output in the fourth quarter alone is expected to drop sharply by about 200,000 tons, accounting for 0.9% of global copper mine supply. More severe still, production at the mine in 2026 is also expected to decrease by 270,000 tons.
The Bargaining Power of Copper Mines
The most direct manifestation of tight supply is that copper mining companies have unprecedented initiative at the negotiating table. This reality was dramatically reflected in the mid-2025 negotiations: the treatment charge for copper concentrate agreed between Antofagasta, one of the world’s major copper miners, and Chinese smelters was set at USD 0.0 per dry metric ton and 0.0 cents per pound. Market analysts pointed out that this indicates global copper miners have absolute pricing power in a tight-supply environment. Even if treatment charges turn negative, smelters can still maintain production at present through revenue from by-products such as sulfuric acid.
This U.S. tariff action is different from ordinary trade protection; it originates from an investigation conducted in the name of “national security.” This investigation, launched under Section 232 of the Trade Expansion Act, assesses the impact of imported copper on U.S. defense, the economy, and industrial resilience. This is the first time the United States has examined copper within a national security framework. A White House document noted that U.S. dependence on imported copper has increased, while its own smelting and refining capacity is insufficient, constituting a national security risk. However, officials from China’s Ministry of Commerce clearly pointed out that the U.S. move is “unilateralism and protectionism implemented in the name of national security.”
Demand Illusion and Truth
Against the backdrop of tight supply, the market’s judgment of demand has shown clear divergence. In the first half of the year, amid the rush-to-export wave, copper demand appeared unusually strong. This concern is not without reason. In the first half of 2025, influenced by news that the United States planned to impose additional tariffs, the market indeed saw a “rush to export.” China’s data reflects this trend: in the first six months, cumulative copper demand grew 12% year-on-year, and in June alone it grew 21% year-on-year. However, beneath the surface, the composition of demand in the U.S. market is equally intriguing. In the first half of the year, U.S. inventory-building demand did not exceed 540,000 tons. Incremental consumption from industry made the inventory build-up roughly equivalent to two months of consumption, which is at a reasonable level amid countries’ increasing decoupling at present, rather than an overdraft-style demand surge.
As tariff policy partially took effect, the market found that the initial panic had eased somewhat, and the real condition of the industry began to surface. The tariff announcement ultimately signed by the United States actually targeted imported copper semi-finished products and derivative products with high copper content, and did not involve raw materials such as electrolytic copper.
Downstream industries have already shown a clearly cautious attitude toward elevated prices. Procurement has mainly focused on meeting rigid, essential needs, and the market has entered the traditional off-season for consumption. Under the dual pressure of high copper prices and the off-season effect, demand in some areas has shown signs of weakness. But certain specific sectors have still demonstrated resilience—for example, demand for new-energy-vehicle connectors has been strong, with growth far exceeding expectations at the beginning of the year.
Swinging Macro Factors
Beyond supply-and-demand fundamentals, macro factors have also played a key role in copper’s roller-coaster (market movement). A shift in the Federal Reserve’s monetary policy provided unexpected support for copper prices. Since late August, the U.S. labor market has shown signs of weakening. Minutes from the September FOMC meeting showed that risks facing the U.S. labor market had increased to a degree sufficient to support rate cuts. The Federal Reserve cut rates by 25 basis points as scheduled in September. At the same time, the U.S. dollar index has continued to weaken since the beginning of the year, retreating from a high of 110 and falling below the 100 round-number threshold. This weakness in the dollar likewise provided upward momentum for the U.S.-dollar-priced commodity copper.
Standing before the historical high of USD 12,000 per ton, the market’s views on the future trajectory have diverged significantly. Citigroup made a bold forecast: as various parties scramble to ship copper metal to the United States, copper prices may rise to USD 13,000 per ton in the second quarter of 2026. Goldman Sachs also listed copper as its most favored metal for next year. Other institutions are more cautious, believing that in the short term the copper market faces pullback pressure.
Copper prices are charging toward the lofty height of USD 12,000 per ton, but market traders have no time to celebrate. Traders are still watching the unpredictable spread between COMEX and the LME; smelters are struggling to balance zero treatment charges and by-product revenue; and builders of electric vehicles and power grids have already begun worrying about next year’s metal bill.
What 2025 leaves behind is not only a record-setting price number, but also a vignette of violent turbulence in the basic raw-materials market, under the combined forces of a reshaping global trade map, accelerating energy transition, and geopolitical games.
[Disclaimer]: The above content reflects analysis of publicly available information, expert insights, and BCC research. It does not constitute investment advice. BCC is not responsible for any losses resulting from reliance on the views expressed herein. Investors should exercise caution.