Trump Orders 15% Tariff and Price Floor on Polysilicon Imports, Citing Production Collapse

President Trump signed an executive order imposing a 15% tariff and minimum import prices on polysilicon — the key raw material for solar panels and semiconductors — effective December. The order follows a national security investigation. Trump cited a US production collapse from 50% of global supply in 2005 to under 2% in 2024; China now holds a near-monopoly.