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section 301 Published 2026-03-17

Initiation of Section 301 Investigations: Acts, Policies, and Practices of Certain Economies Relating to Structural Excess Capacity and Production in Manufacturing Sectors

Origins: CN,TW,JP,VN,KH,TH,MY,SG,ID,IN,BD,MX,CH
📌 ETDETA brief — importer impact summary (educational)

Brief takeaway: The U.S. Trade Representative has opened Section 301 investigations into structural excess manufacturing capacity in several economies, an early step that could later lead to trade actions but imposes no new duties yet.

What changed: According to the notice, USTR has initiated investigations under Section 301 of the Trade Act of 1974 into acts, policies, and practices relating to structural excess capacity and overproduction in manufacturing sectors. The notice states these investigations focus on economies that appear to show large or persistent trade surpluses or underutilized capacity, and that USTR is holding public hearings and opening dockets for written comments and requests to appear.

Who's affected: The notice names economies including China, the European Union, Singapore, Switzerland, Norway, Indonesia, Malaysia, Cambodia, Thailand, Korea, Vietnam, Taiwan, Bangladesh, Mexico, Japan, and India. It references manufacturing sectors broadly but does not specify particular HTS chapters or codes in the text provided.

What to review:
- Review whether your sourcing includes any of the named economies and manufacturing sectors under scrutiny.
- Confirm with your customs broker how to monitor the USTR dockets and hearing schedule if you wish to comment.
- Check whether your supply chain could be exposed to potential future Section 301 measures from these investigations.
- Confirm with trade counsel any comment submission deadlines once dockets open.

This is general information, not legal advice and not a compliance determination — confirm specifics with a licensed customs broker or trade counsel.

Official notice

The United States Trade Representative (Trade Representative) has initiated investigations under Section 301 of the Trade Act of 1974 regarding the acts, policies, and practices of certain economies relating to structural excess capacity and production in certain manufacturing sectors. Key trading partners have developed production capacity untethered from the incentives of domestic and global demand. This excess capacity leads to, among others, overproduction and large or persistent trade surpluses, as well as underutilized and unused capacity, in manufacturing sectors. These investigations will focus on economies that appear to exhibit structural excess capacity and production in various manufacturing sectors, such as through large or persistent trade surpluses or underutilized or unused capacity: China, the European Union (EU), Singapore, Switzerland, Norway, Indonesia, Malaysia, Cambodia, Thailand, Korea, Vietnam, Taiwan, Bangladesh, Mexico, Japan, and India. The inter-agency Section 301 Committee is holding public hearings and seeking public comments in connection with these investigations. USTR will open dockets for submission of written comments and requests to appear at the hearings.
Source: Federal Register · Trade Representative, Office of United States · Read the official notice ↗

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This update is a general educational summary based on public CBP CSMS / Federal Register information. It is not legal advice, customs broker advice, a final classification, duty determination, entry instruction, or compliance determination. Importers should confirm applicability, effective dates, HTSUS/Chapter 99 reporting, rates, refunds, PSC procedures, and filing instructions with their licensed customs broker, trade counsel, and/or CBP.