10
Aug
Key Points
On August 6, 2026, President Trump signed a proclamation imposing a 15% ad valorem tariff and minimum import prices on polysilicon and its derivatives under Section 232 of the Trade Expansion Act of 1962, effective December 4, 2026.
The minimum import price program sets price floors of $21/kg for polysilicon, $100/kg for ingots and wafers, $0.22/W for solar cells, and $0.38/W for solar modules, with materially inaccurate certifications triggering a permanent import ban.
Raw polysilicon is subject only to...