Global copper traders are offering cargoes to Chinese buyers as they look to offload metal no longer able to reach the U.S. before President Donald Trump's 50% copper tariff deadline. Trump said late on Wednesday he would impose the new tariff from August 1 to promote domestic production of everything from semiconductors to ammunition.

President Donald Trump says he will put a 50% tariff on copper imports before noting the value of the versatile metal.

President Donald Trump said his 50% tariff on copper imports will take effect on Aug. 1, noting he made the decision after a national security assessment.