Trump Targets Polysilicon Imports with 15% Tariff and Price Floor

President Trump ordered a 15% tariff and minimum import prices on polysilicon — the raw material for solar panels and semiconductors — starting in December. A national security investigation found U.S. production fell from 50% of global supply in 2005 to under 2% in 2024, while China now holds a near-monopoly. A tariff is a tax on imports; a price floor sets a minimum sale price.