Official-source tariff data · 2026 HTS Rev 19 · synced · Operational
SkuWatch tariff intelligence
Section 232 measure · effective 2026-12-04

Adjusting Imports of Polysilicon and Its Derivatives Into the United States

Federal Register · Final action

Plain-language explainer

Written to help non-specialists understand this page. Rates, dates, and legal facts come from the official records above and on the linked source.

A Section 232 measure is a U.S. trade action based on a finding that certain imports may affect national security. A measure titled “Adjusting Imports of Polysilicon and Its Derivatives Into the United States” may cover polysilicon itself and specified downstream products, depending on the official scope. “Derivatives” generally means products made from, containing, or further processed from the named material, but the legal text controls what is included.

This type of measure typically affects manufacturers, distributors, and importers whose goods match the covered product descriptions or Harmonized Tariff Schedule of the United States (HTSUS) provisions. It matters because covered goods may require additional entry reporting, documentation, or an applicable trade remedy payment, separate from ordinary customs duty. Classification, country of origin, exclusions, and any stated exceptions must be reviewed against the official measure and Customs and Border Protection (CBP) instructions; a customs broker or trade counsel may be needed for difficult products.

What to check

Basis Section 232
Source Federal Register
Current legal effect Final action
Lifecycle Final adopted
Effective date 2026-12-04
Linked codes 12

Legal basis

Section 232 of the Trade Expansion Act of 1962; section 604 of the Trade Act of 1974

Open official source

Affected HTS entries

Only leaf-linked HTS entries open to full code pages; smaller code scopes are grouped upstream.

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