Proclamation 11052 Imposes a 15 Percent §232 Duty on Polysilicon and Derivatives From December 4, 2026
Proclamation 11052 of August 6, 2026 (91 FR 51975), under §232 of the Trade Expansion Act of 1962 (19 U.S.C. 1862), imposes an additional 15 percent ad valorem duty on polysilicon ingots and polysilicon derivatives (wafers, solar cells and solar modules per Annexes I and II) effective 12 01 a.m. ET December 4, 2026, together with minimum import prices set in the proclamation.
What changed
The White House issued a proclamation adjusting tariff rates or import restrictions on polysilicon and derivative products entering the United States. Polysilicon is a critical feedstock for solar-photovoltaic and semiconductor manufacturing. The action likely reflects ongoing US supply-chain security and renewable-energy policy priorities, potentially targeting imports from specific countries or implementing.