In this article Copper rods in storage at the Aurubis AG metal refinery in Hamburg, Germany, on Wednesday, July 16, 2025. Bloomberg | Bloomberg | Getty Images A major exemption to President Donald Trump's 50% copper tariff has shocked traders and sent U.S. market prices plummeting. The final order on copper tariffs, which the Trump administration says will boost the domestic copper production industry, applies to semi-finished products such as pipes, rods, sheets and wires. It also impacts copper-intensive ...