London-listed miners popped Thursday with the coppor market in turmoil, as investors digested better economic news from China.

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

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.

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.

Fears of an upcoming 50% copper tariff have caused a spike in copper prices in the US, though the red metal’s price is falling elsewhere