International Copper Prices Swing Sharply in September 2026
Copper, a strategic mineral used in traditional industry and in emerging sectors such as new energy and artificial intelligence, has risen in price internationally in 2026. On September 10, 2026, international copper prices fell by nearly 4% at one point. On September 11, 2026, London Metal Exchange copper futures rose then retreated, closing about 0.1% lower, while New York copper prices fell about 0.06%.
Copper is one of the strategic mineral resources, used in traditional industrial sectors and in emerging industries such as new energy and artificial intelligence. Since the start of 2026, international copper prices have risen.
Recently, international copper prices have seen sharp swings. On September 10, 2026, international copper prices fell by nearly 4% at one point. On September 11, 2026, London Metal Exchange copper futures surged and then pulled back, ending about 0.1% lower, while copper prices on the New York Commodity Exchange fell about 0.06%.
With the United States midterm elections approaching, the White House is still weighing whether to introduce this tariff.