Imports of certain copper products into the US face a 50% tariff from Aug. 1 as President Donald Trump seeks to revive the domestic supply chain and make the country less reliant on foreign sources of this critical material.

U.S. copper prices plunged after President Trump unveiled 50% tariffs on copper products, but not on the raw material itself. Copper prices surged to records this month after Trump said he would impos

President Donald Trump’s decision this week to impose tariffs starting Aug. 1 on imports of certain copper products, but not on refined copper itself, tanked prices for the industrial metal on Thursday — and has likely brought a halt to a popular trading strategy.