CSMS 6009414·Trade policy·January 9, 2026·View on csms.cbp.gov ↗

Antidumping duty order on hexamethylenetetramine from Germany (A-428-854)

Plain-English explanation

CSMS 6009414 is a U.S. Customs and Border Protection (CBP) Cargo Systems Messaging Service bulletin (trade policy), published on January 9, 2026. It carries the official CBP guidance brokers and importers must follow for the topic — "Antidumping duty order on hexamethylenetetramine from Germany (A-428-854)". It links to 1 AD/CVD case in Tandom's catalog. CSMS messages are the operational layer between Commerce determinations and at-the-border collections: when Commerce publishes a new rate, scope ruling, or instruction, CBP turns it into a CSMS that ACE/ACS systems and brokers act on.

Linked AD/CVD cases(1)

Cases referenced or affected by this CSMS message

A-428-854

Message body

Full text as published by U.S. Customs and Border Protection

1. On 01/07/2026, Commerce published in the Federal Register its antidumping duty order on hexamethylenetetramine (hexamine) from Germany (91 FR 501). 2. The merchandise covered by this order includes hexamine in granular form, with a particle size of 5 millimeters or less, whether stabilized or unstabilized, whether or not blended, mixed, pulverized, or grounded with other products, containing 50 percent or more hexamine by weight. Hexamine is the common name for hexamethylene tetramine (Chemical Abstract Service # 100-97-0), and is also referred to as 1,3,5,7-tetraazaadamantanemethenamine; HMT; HMTA; 1,3,5,7-tetraazatricyclo {3.3.1.13,7} decane; 1,3,5,7-tetraaza adamantane; hexamethylenamine. Hexamine has the chemical formula C6H12N4. Granular hexamine that has been blended with other product(s) is included in this scope when the resulting mix contains 50 percent or more of hexamine by weight, regardless of whether it is blended with inert additives, co-reactants, or any additives that undergo self-condensation. Subject merchandise includes merchandise matching the above description that has been processed in a third country, including by commingling, diluting, adding or removing additives, or performing any other processing that would not otherwise remove the merchandise from the scope of this order if performed in the subject country. Merchandise covered by the scope of this order can be classified in the Harmonized Tariff Schedule (HTSUS) of the United States under the subheading 2933.69.5000. The HTSUS subheading and Chemical Abstracts Service registry number are provided for convenience and customs purposes only; however, the written description of the scope is dispositive. 3. For imports of hexamine from Germany, CBP shall suspend liquidation of entries of subject merchandise entered, or withdrawn from warehouse, for consumption on or after 12/30/2025 (date of publication of the International Trade Commission final determination in the Federal Register). Effective 12/30/2025, CBP shall require a cash deposit equal to the percentages identified below. Producer and/or Exporter: Fiberpipe GFK Vertriebsgesellschaft Case number: A-428-854-001 Cash deposit rate: 102.14% Producer and/or Exporter: Prefere Paraform GmbH & Co Kg Case number: A-428-854-002 Cash deposit rate: 59.29% All Others Case Number: A-428-854-000 Cash Deposit Rate: 59.29% 4. If there are any questions by the importing public regarding this message, please contact the Call Center for the Office of AD/CVD Operations, Enforcement and Compliance, International Trade Administration, U.S. Department of Commerce at (202) 482-0984. CBP ports should submit their inquiries through authorized CBP channels only. (This message was generated by OIX:MMP) 5. There are no restrictions on the release of this information. Alexander Amdur

Frequently asked questions

What is CSMS 6009414?

CSMS 6009414 is a U.S. Customs and Border Protection (CBP) Cargo Systems Messaging Service bulletin titled "Antidumping duty order on hexamethylenetetramine from Germany (A-428-854)". CSMS bulletins are the operational instructions CBP issues to brokers, importers, and ACE filers covering rate changes, system updates, scope guidance, and other day-to-day customs-operations changes.

When was CSMS 6009414 published?

CBP published CSMS 6009414 on January 9, 2026. The bulletin's instructions are typically operative as of the publication date unless the body specifies a different effective date.

Which AD/CVD cases does CSMS 6009414 affect?

CSMS 6009414 references 1 AD/CVD case (A-428-854). The links on this page take you to each linked order with its current scope, rates, and history.

Is the CBP CSMS the legally binding instruction?

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