Copper is used in a wide variety of products from electronics, wiring, machinery and cars. The U.S. produces a majority of the copper it uses but still imports large quantities, primarily from

US President Donald Trump’s promised 50% copper tariffs are set to include all refined metal, indicating the president’s far-reaching efforts to bolster American production of one of the world’s most ubiquitous materials.

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,