Futures contracts hit a record price after the president announced plans for a 50 percent tariff on the metal, driving up costs for businesses.

U.S. President Donald Trump's threat of a 50% tariff on copper imports is raising alarm in the U.S. auto sector, as it could make it even harder for carmakers and suppliers to absorb border taxes and rising costs,

Copper traders racing to get cargoes into the US are looking to shift deliveries into Hawaii and Puerto Rico to cut shipment times, as Donald Trump’s plan for 50% tariffs threatens to slam the door on a hugely profitable arbitrage trade that has gripped the industry for months.

President Trump's threatened 50% copper tariffs have boosted prices for the metal in the U.S. far ahead of anywhere else, lifting the premium to roughly one quarter. Copper futures mainly trad

Rio Tinto Plc says it has a “strong desire” to invest in US copper mining following President Donald Trump’s plans to levy imports of the critical metal.