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U.S. Government Starts Review of Manganese Dioxide Orders from China

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The United States International Trade Commission (USITC) announced the start of a new review on June 2, 2025. The review will decide if removing the current rules on electrolytic manganese dioxide from China could hurt U.S. companies again.

Electrolytic manganese dioxide is a chemical used in products like batteries. Since 2008, the U.S. has had an antidumping duty order on this product from China. The Department of Commerce put this order in place on October 7, 2008.

The U.S. already did two reviews—in 2015 and 2020—and decided both times to keep the order. Now, this is the third five-year review. The review follows rules in the Tariff Act of 1930.

The USITC wants to know if ending the order would likely lead to harm for companies in the United States. They are asking interested parties to send information by July 2, 2025. People can also send comments about if responses are strong enough by August 13, 2025.

Who Should Respond

The USITC says interested parties can include U.S. producers, unions, importers, foreign producers, exporters, and trade groups. Those wanting to join the proceeding as a party must file an entry of appearance within 21 days after the notice was published in the Federal Register.

Companies and individuals can look at case records online through the USITC’s electronic document system. They can also find more information on the agency website.

Information Needed

The USITC is asking for detailed information. This includes:

  • Names and addresses of businesses.
  • Whether the company or person is an interested party under the law.
  • Whether the company will give information for the review.
  • Predictions about what will happen to U.S. companies if the order ends.
  • Lists of U.S. producers, U.S. importers, and foreign companies making or shipping electrolytic manganese dioxide.
  • Names of top buyers in the U.S.
  • Where to get U.S. or world price data for the product.
  • Details of production and sales for the last year.
  • Lists of changes in markets or conditions since 2018 and what might change soon.

The USITC provides a worksheet on its website to help parties organize responses. They must file electronically; paper submissions are currently not accepted.

Guidelines for Submissions

All information must be certified as true and complete. Private business information will only be shared with those who sign special confidentiality agreements. If a party cannot provide some information, it must explain why and try to offer other data. If parties do not respond fully, the Commission may decide the case using facts against the non-responding party.

Review Timeline and Authority

Key deadlines are:

  • July 2, 2025 – deadline for initial responses.
  • August 13, 2025 – deadline for comments on responses.

The USITC acts under the authority of the Tariff Act of 1930 and its own rules. The agency will decide if a full or quick review is needed, based on the responses. Their final decision could affect duties on Chinese electrolytic manganese dioxide for years to come.

For more questions, the Commission contact is Laurel Schwartz at the USITC, and further materials are available on their website.

The review started on June 2, 2025, and was announced by Lisa Barton, Secretary to the Commission.


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