Copper futures in New York surged after US President Donald Trump said he planned to implement a 50% tariff on imports of the commodity, a move that’s likely to spark massive supply-chain ripples through global metal markets.

President Donald Trump said Tuesday he’s imposing a new 50% tariff on all copper imported into the US. However, it’s unclear when the new tariff would take effect. “Today we’re doing copper,” he said at a Cabinet meeting,

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.