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Office of Trade Remedy Compliance
Supporting U.S. companies facing foreign antidumping, countervailing duty and safeguard investigations and ensuring foreign governments comply with their international trade obligations

EU Initiates Antidumping Duty Investigation into 1,4-Butanediol from the United States, Saudi Arabia, and China

The European Union Initiates Antidumping Duty Investigation into 1,4-Butanediol from the United States, Saudi Arabia, and China  

On June 6, 2025, the European Commission (the Commission) initiated an antidumping duty (AD) investigation into imports of 1,4-Butanediol (BDO) from the United States, Saudi Arabia, and China. If an affirmative decision is issued in this investigation, duties may be imposed on subject U.S. exports.   

What is an antidumping duty (AD) investigation?  

An AD investigation assesses whether foreign goods imported into a country are being sold at less than fair value (below prices or costs) in the domestic market (i.e., being dumped) and whether this is causing or threatening to cause injury to the domestic industry.  

How can I participate?  

U.S. companies involved in the production, sale, or distribution of the subject goods should register as interested parties as soon as possible. Registration is the first step in protecting your rights in a foreign trade remedy proceeding. Doing so allows you to access the case records and submit information and comments, ensuring that your views are considered. Please follow the directions outlined in section 5.8 of the Initiation Notice for instructions on how to register as an interested party. Please note that the Commission invites interested parties to make all submissions and requests, including requests to register as an interested party, via its electronic case record system referred to as TRON.tdi (https://tron.trade.ec.europa.eu/tron/TDI). 

 

KEY DATES
Period of InvestigationJanuary 1, 2024, through December 31, 2024
Initial Questionnaire Response Deadline  June 13, 2025
Preliminary Determination* January 8, 2026
Final Determination*August 5, 2026

*Estimated

Product Under Investigation 

The product subject to this investigation is 1,4-Butanediol (BDO) usually falling under the Chemical Abstracts Service’s registration (CAS) number 110-63-4 and usually classified in the European Inventory of Existing Commercial Chemical Substances (EINECS) under EC-number 203-786-5. 
BDO is used as a solvent and in the manufacture of plastics and polyurethanes. The merchandise under investigation is currently classified under Harmonized Tariff Schedule (HS) codes: 29.0539.26, 29.0539.28. See page 1 of the Initiation Notice for further information.

Contact Us

The U.S. Department of Commerce’s Office of Trade Remedy Compliance supports U.S. companies facing foreign trade remedy proceedings (antidumping duty, countervailing duty, and safeguard actions) and ensures foreign governments comply with their international trade obligations. Should you have any questions, please contact TRCS@trade.gov. For more information, visit Office of Trade Remedy Compliance.