Donald Trump's mooted 50% tariff on copper imports into America has sharply exacerbated what was already a dislocation between New York and London prices for the metal. The chart shows that since Trump's inauguration traders have been placing a greater premium on the COMEX contract,

The planned 50% tariff on copper imports may turn out to be the biggest own goal of U.S. President Donald Trump's ongoing trade war with the rest of the world.

London copper prices edged higher in early trading as the market weighed the impact of Trump’s 50% import tariff on the metal.

President Trump is amping up trade threats, again unveiling a new batch of letters to country leaders outlining tariffs on goods imported from their countries beginning in August and a warning to BRICS nations.

President Donald Trump announced a 50% tariff on copper imports on Tueday, a move aimed at bolstering domestic production and reducing U.S. reliance on foreign supplies, particularly from Chile, which accounts for nearly 35% of U.S. copper imports.

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

U.S. President Donald Trump's 50% tariff on copper has placed a record premium on prices of the metal in the United States that is likely to ease over the coming months as a stockpile created by traders anticipating the levy works through the system.

Although US copper prices shot higher after Trump delivered his threat on Tuesday, the global price on the London Metal Exchange sank on Wednesday as traders bet that any tariffs would ultimately hit demand for the metal.