CSMS 5363404·Trade policy·December 29, 2025·View on csms.cbp.gov ↗

Antidumping duty order on corrosion-resistant steel products from the Socialist Republic of Vietnam (Vietnam) (A-552-843)

Plain-English explanation

CSMS 5363404 is a U.S. Customs and Border Protection (CBP) Cargo Systems Messaging Service bulletin (trade policy), published on December 29, 2025. It carries the official CBP guidance brokers and importers must follow for the topic — "Antidumping duty order on corrosion-resistant steel products from the Socialist Republic of Vietnam (Vietnam) (A-552-843)". 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-552-843

Message body

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

1. On 12/19/2025, Commerce published in the Federal Register its antidumping duty order on corrosion-resistant steel products (CORE) from Vietnam (90 FR 59494). 2. The products covered by this order are certain flat-rolled steel products, either clad, plated, or coated with corrosion-resistant metals such as zinc, aluminum, or zinc-, aluminum-, nickel- or iron-based alloys, whether or not corrugated or painted, varnished, laminated, or coated with plastics or other non-metallic substances in addition to the metallic coating. The products covered include coils that have a width of 12.7 mm or greater, regardless of form of coil (e.g., in successively superimposed layers, spirally oscillating, etc.). The products covered also include products not in coils (e.g., in straight lengths) of a thickness less than 4.75 mm and a width that is 12.7 mm or greater and that measures at least 10 times the thickness. The products covered also include products not in coils (e.g., in straight lengths) of a thickness of 4.75 mm or more and a width exceeding 150 mm and measuring at least twice the thickness. The products described above may be rectangular, square, circular, or other shape and include products of either rectangular or non-rectangular cross-section where such cross-section is achieved subsequent to the rolling process, i.e., products which have been "worked after rolling" (e.g., products which have been beveled or rounded at the edges). For purposes of the width and thickness requirements referenced above: (1) Where the nominal and actual measurements vary, a product is within the scope if application of either the nominal or actual measurement would place it within the scope based on the definitions set forth above, and (2) where the width and thickness vary for a specific product (e.g., the thickness of certain products with non-rectangular cross-section, the width of certain products with non-rectangular shape, etc.), the measurement at its greatest width or thickness applies. Steel products included in the scope of this order are products in which: (1) iron predominates, by weight, over each of the other contained elements; and (2) the carbon content is 2 percent or less, by weight. Subject merchandise also includes corrosion-resistant steel that has been further processed in a third country, including but not limited to annealing, tempering, painting, varnishing, trimming, cutting, punching and/or slitting or any other processing that would not otherwise remove the merchandise from the scope of the order if performed in the country of manufacture of the in-scope corrosion resistant steel. All products that meet the written physical description are within the scope of the order unless specifically excluded. The following products are outside of and/or specifically excluded from the scope of the order: - Flat-rolled steel products either plated or coated with tin, lead, chromium, chromium oxides, both tin and lead ("terne plate") or both chromium and chromium oxides ("tin free steel"), whether or not painted, varnished or coated with plastics or other non-metallic substances in addition to the metallic coating; - Clad products in straight lengths of 4.7625 mm or more in composite thickness and of a width which exceeds 150 mm and measures at least twice the thickness; - Certain clad stainless flat-rolled products, which are three-layered corrosion-resistant carbon steel flat-rolled products less than 4.75 mm in composite thickness that consist of a carbon steel flat-rolled product clad on both sides with stainless steel in a 20%-60%- 20% ratio; and Also excluded from the scope of the antidumping duty order on corrosion-resistant steel from the Socialist Republic of Vietnam are any products covered by the existing antidumping and countervailing duty orders on corrosion-resistant steel from the People's Republic of China and the Republic of Korea and the antidumping duty order on corrosion-resistant steel from Taiwan. See Certain Corrosion-Resistant Steel Products from India, Italy, the People's Republic of China, the Republic of Korea and Taiwan: Amended Final Affirmative Antidumping Determination for India and Taiwan, and Antidumping Duty Orders, 81 FR 48390 (July 25, 2016); see also Certain Corrosion-Resistant Steel Products from India, Italy, Republic of Korea and the People's Republic of China: Countervailing Duty Order, 81 FR 48387 (July 25, 2016). This exclusion does not apply to imports of corrosion-resistant steel that are entered, or withdrawn from warehouse, for consumption in the United States for which the relevant importer and exporter certifications have been completed and maintained and all other applicable certification requirements have been met such that the entry is entered into the United States as not subject to the antidumping and countervailing duty orders on corrosion-resistant steel from the People's Republic of China, the antidumping and countervailing duty orders on corrosion-resistant steel from the Republic of Korea, or the antidumping duty order on corrosion-resistant steel from Taiwan. The products subject to the order are currently classified in the Harmonized Tariff Schedule of the United States (HTSUS) under item numbers: 7210.30.0030, 7210.30.0060, 7210.41.0000, 7210.49.0030, 7210.49.0040, 7210.49.0045, 7210.49.0091, 7210.49.0095, 7210.61.0000, 7210.69.0000, 7210.70.6030, 7210.70.6060, 7210.70.6090, 7210.90.6000, 7210.90.9000, 7212.20.0000, 7212.30.1030, 7212.30.1090, 7212.30.3000, 7212.30.5000, 7212.40.1000, 7212.40.5000, 7212.50.0000, 7212.60.0000, 7225.91.0000, 7225.92.0000, 7226.99.0110, and 7226.99.0130. The products subject to the order may also enter under the following HTSUS item numbers: 7210.90.1000, 7215.90.1000, 7215.90.3000, 7215.90.5000, 7217.20.1500, 7217.30.1530, 7217.30.1560, 7217.90.1000, 7217.90.5030, 7217.90.5060, 7217.90.5090, 7225.99.0090, 7226.99.0180, 7228.60.6000, 7228.60.8000, and 7229.90.1000. The HTSUS subheadings above are provided for convenience and customs purposes only. The written description of the scope of the order is dispositive. 3. For imports of CORE from Vietnam, CBP shall suspend liquidation of entries of subject merchandise entered, or withdrawn from warehouse, for consumption on or after 12/02/2025 (the date on which the International Trade Commission published its final determination in the Federal Register). Effective 12/02/2025, CBP shall require a cash deposit equal to the percentages for the exporter/producer combinations identified below. Exporter: Vietnam-Wide Entity Case number: A-552-843-000 Cash deposit rate: 162.96% Producer: Hoa Sen Group; Hoa Sen Nghe An One Member Limited Liabilities Company; Hoa Sen Nhon Hoi - Binh Dinh One Member Limited Liabilities Company Exporter: Hoa Sen Group; Hoa Sen Nghe An One Member Limited Liabilities Company; Hoa Sen Nhon Hoi - Binh Dinh One Member Limited Liabilities Company Case number: A-552-843-001 Cash deposit rate: 110.19% Producer: Ton Dong A Corporation Exporter: Ton Dong A Corporation Case number: A-552-843-002 Cash deposit rate: 87.07% Producer: China Steel and Nippon Steel Viet Nam Joint Stock Company Exporter: China Steel and Nippon Steel Viet Nam Joint Stock Company Case number: A-552-843-003 Cash deposit rate: 94.89% Producer: Hoa Phat Steel Sheet Limited Liability Company Exporter: Hoa Phat Steel Sheet Limited Liability Company Case number: A-552-843-004 Cash deposit rate: 94.89% Producer: Maruichi Sun Steel Joint Stock Company Exporter: Maruichi Sun Steel Joint Stock Company Case number: A-552-843-005 Cash deposit rate: 94.89% Producer: Nam Kim Steel Joint Stock Company Exporter: Nam Kim Steel Joint Stock Company Case number: A-552-843-006 Cash deposit rate: 94.89% Producer: Pomina Flat Steel Joint Stock Company Exporter: Pomina Flat Steel Joint Stock Company Case number: A-552-843-007 Cash deposit rate: 94.89% Producer: Sam Hwan Vina Co., Ltd. Exporter: Sam Hwan Vina Co., Ltd. Case number: A-552-843-008 Cash deposit rate: 94.89% Producer: Southern Steel Sheet Co., Ltd. Exporter: Southern Steel Sheet Co., Ltd. Case number: A-552-843-009 Cash deposit rate: 94.89% Producer: Tay Nam Steel Manufacturing & Trading Co., Ltd. Exporter: Tay Nam Steel Manufacturing & Trading Co., Ltd. Case number: A-552-843-010 Cash deposit rate: 94.89% Producer: TVP Steel Trading Joint Stock Company Exporter: TVP Steel Trading Joint Stock Company Case number: A-552-843-011 Cash deposit rate: 94.89% Producer: Viet Phap Steel Corrugated Joint Stock Company Exporter: Viet Phap Steel Corrugated Joint Stock Company Case number: A-552-843-012 Cash deposit rate: 94.89% 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 OVI:WB) 5. There are no restrictions on the release of this information. Alexander Amdur

Frequently asked questions

What is CSMS 5363404?

CSMS 5363404 is a U.S. Customs and Border Protection (CBP) Cargo Systems Messaging Service bulletin titled "Antidumping duty order on corrosion-resistant steel products from the Socialist Republic of Vietnam (Vietnam) (A-552-843)". 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 5363404 published?

CBP published CSMS 5363404 on December 29, 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 5363404 affect?

CSMS 5363404 references 1 AD/CVD case (A-552-843). 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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