Important Update: New Import Pricing Requirements for Polysilicon and Polysilicon Derivative Products
On August 6, 2026, President Trump issued a proclamation intended to protect and strengthen U.S. semiconductor and solar-power supply chains by establishing minimum import prices (MIPs) for polysilicon and certain polysilicon derivatives.
Effective December 4, 2026, the minimum import prices will be:
The proclamation indicates that these minimum prices may be adjusted periodically based on market conditions.
Importer Documentation Requirements
Importers will be permitted to submit documentation at entry demonstrating an arm’s-length sale of the imported merchandise, or of downstream products made from the imported merchandise, provided the sale or fixed-term contract was entered into prior to August 6, 2026.
If U.S. Customs and Border Protection (CBP) determines that the required information was not submitted, or that the documented pricing is below the applicable minimum import price, the entry may be adjusted to meet the applicable minimum price.
Additionally, if CBP determines that submitted information is intentionally inaccurate or that an importer has failed to comply with the requirements, CBP may impose penalties and could permanently prohibit the importer and its affiliates from importing the covered materials.
Section 232 Duties
The proclamation also establishes a 15% Section 232 tariff on certain downstream products derived from polysilicon.
For certain countries, the total duty treatment will vary:
Potential Tariff Relief
Tariff relief may be available for countries that enter into trade agreements with the U.S. administration and adopt measures modeled after the minimum import price program. Relief may also be available where foreign producers commit to building, expanding, or refurbishing U.S. facilities to manufacture the covered products, with such projects beginning no later than January 20, 2029.
Important: Stockpiling Restrictions
One particularly important provision concerns stockpiling. Companies that CBP determines are stockpiling covered products in advance of the December 4, 2026 effective date may be subject to action restricting future imports by the company and/or its affiliates.
As additional guidance and information becomes available—including further clarification regarding the products and derivatives covered by these provisions—CV International will continue to keep our customers informed.
We encourage customers involved in the importation of polysilicon, or related downstream products, to review these requirements carefully and evaluate how they may affect upcoming shipments and purchasing arrangements.
Reference the presidential proclamation here: Adjusting Imports of Polysilicon and its Derivatives into the United States – The White House.
John Boomhover
Director of Compliance & Customs Services
CV International, Inc.