CSMS 5036403·Trade policy·February 5, 2025·View on csms.cbp.gov ↗

Countervailing duty order on melamine from Trinidad and Tobago (C-274-811)

Plain-English explanation

CSMS 5036403 is a U.S. Customs and Border Protection (CBP) Cargo Systems Messaging Service bulletin (trade policy), published on February 5, 2025. It carries the official CBP guidance brokers and importers must follow for the topic — "Countervailing duty order on melamine from Trinidad and Tobago (C-274-811)". 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

C-274-811

Message body

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

1. On 01/31/2025, Commerce published in the Federal Register its countervailing duty order on melamine from Trinidad and Tobago (90 FR 8698). 2. The merchandise covered by this order is melamine (Chemical Abstracts Service (CAS) registry number 108-78-01, molecular formula C3 H6 N6). Melamine is also known as 2,4,6- triamino-s-triazine; 1,3,5-Triazine-2,4,6- triamine; Cyanurotriamide; Cyanurotriamine; Cyanuramide; and by various brand names. Melamine is a crystalline powder or granule. All melamine is covered by the scope of this order irrespective of purity, particle size, or physical form. Melamine that has been blended with other products is included within this scope when such blends include constituent parts that have been intermingled, but that have not been chemically reacted with each other to produce a different product. For such blends, only the melamine component of the mixture is covered by the scope of this order. Melamine that is otherwise subject to this order is not excluded when commingled with melamine from sources not subject to this order. Only the subject component of such commingled products is covered by the scope of this order. The subject merchandise is provided for in subheading 2933.61.0000 of the Harmonized Tariff Schedule of the United States (HTSUS). Although the HTSUS subheading and CAS registry number are provided for convenience and customs purposes, the written description of the scope is dispositive. 3. For imports of melamine from Trinidad and Tobago, CBP shall suspend liquidation of entries of subject merchandise entered, or withdrawn from warehouse, for consumption on or after 01/29/2025 (date of publication of the International Trade Commission final determination in the Federal Register). Effective 01/29/2025, CBP shall require a cash deposit equal to the percentages identified below. Producer and/or Exporter: All-Others Case Number: C-274-811-000 Cash Deposit Rate: 7.43% Producer and/or Exporter: Methanol Holdings (Trinidad) Ltd. Case Number: C-274-811-001 Cash Deposit Rate: 7.43% 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 OV: MG) 5. There are no restrictions on the release of this information. Alexander Amdur

Frequently asked questions

What is CSMS 5036403?

CSMS 5036403 is a U.S. Customs and Border Protection (CBP) Cargo Systems Messaging Service bulletin titled "Countervailing duty order on melamine from Trinidad and Tobago (C-274-811)". 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 5036403 published?

CBP published CSMS 5036403 on February 5, 2025. 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 5036403 affect?

CSMS 5036403 references 1 AD/CVD case (C-274-811). 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?

Learn more

Tandom guides relevant to CBP CSMS messages

Trade compliance APIs in broker workflows

Where trade compliance APIs fit in a broker's filing pipeline: HTS classification, duty calculation, AD/CVD scope match, and post-summary corrections.

Open resource

Find the right manufacturer or exporter rate in an AD/CVD order

Cash deposit cascade, separate rates, all-others, and PRC-wide rates. Worked example on case A-570-910 (galvanized welded steel pipe from China) with three exporter-specific rates.