SummaryCompaniesTrade moves target a key material in solar and chipmakingMeasures could benefit domestic producers but raise costs for solar developers and chip buyersUS pushing to strengthen domestic semiconductor and AI-related supply chainsAug 4 (Reuters) - The Trump administration is preparing to set a price floor ​and impose tariffs on polysilicon and related products, according to four people familiar with the plan, putting a material critical to solar panels and ‌semiconductors at the cen...