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U.S. Antidumping and Countervailing Duties
Information and Resources for U.S. Trade Remedy Laws and Ongoing Proceedings.
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Preliminary Affirmative Determination in the Antidumping Duty Investigation of Monomers and Oligomers from Taiwan

Preliminary Affirmative Determination in the Antidumping Duty Investigation of Monomers and Oligomers from Taiwan

On September 4, 2025, the U.S. Department of Commerce (Commerce) announced its preliminary affirmative determination in the antidumping duty (AD) investigation of monomers and oligomers from Taiwan 

Preliminary Dumping Rates

Exporter/ProducerWeighted- Average Dumping Rate Margin (percent)
Eternal Materials Co., Ltd286.12*
Qualipoly Chemical Corporation286.12*
Synth-Edge Advanced Material Co., Ltd.286.12*
All Others199.47

* This rate is based on facts available with adverse inferences.

Import Statistics

Taiwan202220232024
Volume (KG)40,137,91232,676,56428,931,989
Value (USD)$204,195,026$97,705,543$79,384,212 

Source: U.S. Census Bureau, accessed through S&P Global Trade Atlas (Harmonized Tariff Schedule of the United States (HTSUS) subheadings 2916.12.5050, 2916.14.2050, 3824.99.2900, 3907.29.0000 and 3907.30.0000). Imports of certain monomers and oligomers enter under HTSUS subheadings that may cover subject and non-subject merchandise.

Next Steps

  • The final determination of this AD investigation is scheduled to be announced on November 18, 2025.
  • Commerce is conducting a concurrent CVD investigation on monomers and oligomers from Taiwan.
  • The U.S. International Trade Commission (ITC) is running a concurrent injury determination investigation.  For more information related to the ITC’s timeline, please refer to the ITC’s calendar.
     

Other Case Information

  • The petitioner is Arkema, Inc. (King of Prussia, PA)
  • For general information and next steps, please refer to a list of preliminary FAQs.

  • Additional case information, including the scope of the investigations, are on file electronically via Enforcement and Compliance’s Antidumping and Countervailing Duty Centralized Electronic Service System (ACCESS). Once you log in, please refer to case number:

    Trading PartnerAD Case Number
    TaiwanA-583-879
  • To date, Commerce maintains 779 AD and countervailing duty orders that provide relief to American companies and industries impacted by unfair trade.

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Global Business Navigator Chatbot Beta

Welcome to the Global Business Navigator, an artificial intelligence (AI) Chatbot from the International Trade Administration (ITA). This tool, currently in beta version testing, is designed to provide general information on the exporting process and the resources available to assist new and experienced U.S. exporters. The Chatbot, developed using Microsoft’s Azure AI services, is trained on ITA’s export-related content and aims to quickly get users the information they need. The Chatbot is intended to make the benefits of exporting more accessible by understanding non-expert language, idiomatic expressions, and foreign languages.

Limitations

As a beta product, the Chatbot is currently being tested and its responses may occasionally produce inaccurate or incomplete information. The Chatbot is trained to decline out of scope or inappropriate requests. The Chatbot’s knowledge is limited to the public information on the Export Solutions web pages of Trade.gov, which covers a wide range of topics on exporting. While it cannot provide responses specific to a company’s product or a specific foreign market, its reference pages will guide you to other relevant government resources and market research. Always double-check the Chatbot’s responses using the provided references or by visiting the Export Solutions web pages on Trade.gov. Do not use its responses as legal or professional advice. Inaccurate advice from the Chatbot would not be a defense to violating any export rules or regulations.

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Translation

The Chatbot supports a wide range of languages. Because the Chatbot is trained in English and responses are translated, you should verify the translation. For example, the Chatbot may have difficulty with acronyms, abbreviations, and nuances in a language other than English.

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