Trump imposes 15% tariff on key chip material to counter China BBCTrump Issues Tariffs on Key Ingredient for Electronics and Solar Panels The New York TimesTrump unveils trade actions to compete with China on solar and chips ReutersUS Weighs Delayed Collection of Planned Polysilicon Tariffs Bloomberg.comTrump to Impose 15% Tariff, Set Minimum Prices on Solar Panels and Components WSJ