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

The price of copper moved upward sharply yesterday after Trump said he thought imports should be taxed at 50%. He also said pharmaceuticals should be tariffed at 200%. The U.S. is not self-sufficient in either product—which would make life more expensive for Americans if Trump follows through with his plans.

Comex copper turns lower a day after President Trump announced a higher than expected 50% tariff on copper imports that caused a record spike in US futures and a drop in the global benchmark