U.S. copper prices are trading at records ahead of the 50% tariff that the president has promised to impose on imports.

U.S. President Donald Trump's threat of a 50% tariff on copper imports is raising alarm in the U.S. auto sector, as it could make it even harder for carmakers and suppliers to absorb border taxes and rising costs,

The U.S. copper industry is in crisis — and Washington is finally taking notice. With President Donald Trump’s recent announcement of 50% tariffs on copper imports under Section 232 of the Trade Expansion Act,