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

Copper prices in the United States jumped more than 12% to a record high above $12,330 per metric ton after U.S. President Donald Trump said he would announce a 50% tariff on imports of the metal on Tuesday.

Copper futures rose dramatically following President Trump's plan for a 50% import tariff, pushing domestic prices to a 25% premium over global markets amid growing demand.

Ivanhoe Mines founder Robert Friedland said the tariffs would cut America’s dependence on imported critical minerals at a time when self-sufficiency was crucial.

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