The sector-specific tariffs are putting pressure on businesses and foreign nations as they try to navigate Trump's constantly evolving trade agenda.

An indicator of copper import demand in top consumer China jumped 38% on Wednesday, suggesting robust appetite for the metal, after U.S. President Donald Trump's plans for a 50% import tariff drove down benchmark prices in London.

Trump and his aides have repeatedly shifted their stance on tariffs in the weeks since the president’s “Liberation Day” announcement.

“Any Country aligning themselves with the Anti-American policies of BRICS, will be charged an ADDITIONAL 10% Tariff. There will be no exceptions to this policy,” Mr. Trump said in a Truth Social post. He did not elaborate, nor did he say what BRICS policies he was referring to.

Chile, the world's No. 1 copper producer, is in wait-and-see mode after U.S. President Donald Trump announced a surprise 50% tariff on imports of the red metal, with the Andean nation blindsided while its top miner held out hope of exemptions.