Commerce sets out polysilicon stockpiling limits ahead of Dec. 4 tariffs

Commerce sets out polysilicon stockpiling limits ahead of Dec. 4 tariffs

The Commerce Department will begin restricting polysilicon imports by companies it deems to be “stockpiling” the material to avoid duties, in preparation for the imposition of 15 percent tariffs on Dec. 4 under the Trade Expansion Act of 1962, according to a “temporary” rule slated for formal publication on Thursday. The temporary final rule, which Commerce posted online on Sept. 22, two days before it is slated to appear in the Federal Register…

Commerce is watching polysilicon imports to stop stockpiling

To prevent stockpiling polysilicon and its derivatives ahead of Sec. 232 tariff initiation, the Dept. of Commerce’s Bureau of Industry and Security (BIS) has issued a temporary final rule explaining how it will monitor imports. In August, the Trump administration announced tariffs and minimum import prices on polysilicon and its derivatives under Sec. 232 of…

US introduces polysilicon import limits ahead of Section 232 tariffs coming into force in December

The US has published new limits on polysilicon imports to the US ahead of new tariffs coming into force on 4 December.

U.S. Imposes 15% Section 232 Tariff on Polysilicon and Its Derivatives

Latest Update: CBP issued guidance on an import ban for certain polysilicon products when Commerce determines that an importer of record exceeds historic import volumes or applicable weekly quantity limits. Affected importers cannot make further entries before December 4, 2026, but may apply to Commerce for a waiver of the prohibition.