Tandom
About
Sign inCreate a free account →
Tandom

The building blocks of global trade.

hello@tandom.ai

Proud to partner with

Microsoft for Startups

NVIDIA

Inception Program

Products

  • Tariff Calculator
  • AD/CVD Intelligence
  • HTS Classification
  • Document Intelligence
  • Entry Filing
  • Excel Plugin
  • Email Plugin

Catalogs

  • AD/CVD Catalog
  • HTS Catalog
  • Pending Investigations Directory
  • Rate Change Feed

Developers

  • API
  • AI Agent Workflows
  • MCP Connector
  • API Reference
  • API Pricing
  • API Changelog

Resources

  • Resource Center
  • Guides
  • Roadmap

Company & Legal

  • About
  • Privacy Policy
  • Terms of Service
  • Acceptable Use

© 2026 Fintora Technologies, Inc. d/b/a Tandom. All rights reserved.

Plain-English explanationLinked AD/CVD casesMessage bodyFrequently asked questionsLearn more
  1. AD/CVD Catalog
  2. ›
  3. CSMS
  4. ›
  5. CSMS 4166411
CSMS 4166411·Trade policy·June 14, 2024·View on csms.cbp.gov ↗

Final determination of circumvention - antidumping duty order on hydrofluorocarbon blends from the People's Republic of China (A-570-028) (Third Country Case Number A-557-300)

Plain-English explanation

CSMS 4166411 is a U.S. Customs and Border Protection (CBP) Cargo Systems Messaging Service bulletin (trade policy), published on June 14, 2024. It carries the official CBP guidance brokers and importers must follow for the topic — "Final determination of circumvention - antidumping duty order on hydrofluorocarbon blends from the People's Republic of China (A-570-028) (Third Country Case Number A-557-300)". It links to 2 AD/CVD cases 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(2)

Cases referenced or affected by this CSMS message

A-557-300A-570-028

Message body

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

1. On 06/12/2024, Commerce issued a final circumvention determination that hydrofluorocarbon blends R-410A and R-407C, from Malaysia, completed in Malaysia using People's Republic of China-origin components R-32 (difluoromethane), R-125 (pentafluoroethane), and R-134a (1,1,1, 2 tetrafluoroethane) and subsequently exported from Malaysia to the United States (products covered by the determination) are circumventing the antidumping duty (AD) order on hydrofluorocarbon blends from the People's Republic of China (A-570-028). See 89 FR 49842. 2. Specifically, Commerce determined that the products covered by the determination are covered by the scope of the AD order on hydrofluorocarbon blends from the People's Republic of China because (i) the products imported into the United States from Malaysia are within the same class or kind of merchandise subject to the AD order on hydrofluorocarbon blends from the People's Republic of China; (ii) the products covered by the determination are being completed and assembled, in part, from parts and components produced in the People's Republic of China; (iii) the totality of the factors indicates the process of assembly or completion in Malaysia is minor or insignificant; (iv) the value of People's Republic of China-origin hydrofluorocarbon components R-32, R-125, and R-134a is a significant portion of the total value of the merchandise made from these components in Malaysia and exported to the United States; and (v) action is appropriate to prevent evasion of the order on hydrofluorocarbon blends from the People's Republic of China. 3. This final circumvention determination is applicable on a country-wide basis, regardless of foreign producer, exporter, or importer. 4a. Continue to suspend liquidation of entries of products covered by the determination already subject to the suspension of liquidation under the antidumping duty order on hydrofluorocarbon blends from the People's Republic of China at the cash deposit rate(s) in effect on the date of entry in accordance with message 3199408, dated 07/18/2023 (initiation message), and message 3348401, dated 12/14/2023 (affirmative preliminary circumvention determination message). 4b. Commerce has determined that evidence exists for suspension of liquidation of entries preceding the initiation date of this circumvention inquiry for imports of subject merchandise from the producers and/or exporters identified below (see 89 FR 49842). Accordingly, for all entries of products covered by the determination, CBP should suspend liquidation of such shipments entered, or withdrawn from warehouse, for consumption on or after 11/04/2021, (the date set in the final determination) and shall require, for such entries, a cash deposit equal to the percentage of entered value for the producer and/or exporter listed below. Commerce established a third-country case number to allow products covered by the determination to be properly reported as subject to the order on hydrofluorocarbon blends from the People's Republic of China (A-570-028) upon entry. Third Country: Malaysia Case Number: A-557-300 Exporter: Country-Wide Case Number: A-557-300-000 Cash Deposit Rate: 216.37% The third country AD case number above has been assigned for CBP purposes. 4c. Entries of products covered by subparagraph(s) 4a and 4b should not be liquidated until specific liquidation instructions are issued. Any entries which are set for liquidation must be unset immediately. 5. In accordance with 19 CFR 351.226(l)(5), this instruction does not affect or otherwise limit CBP's independent authority to take any additional action with respect to the suspension of liquidation or related measures. 6. 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 OII: JX.) 7. There are no restrictions on the release of this information. Alexander Amdur

Frequently asked questions

What is CSMS 4166411?

CSMS 4166411 is a U.S. Customs and Border Protection (CBP) Cargo Systems Messaging Service bulletin titled "Final determination of circumvention - antidumping duty order on hydrofluorocarbon blends from the People's Republic of China (A-570-028) (Third Country Case Number A-557-300)". 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 4166411 published?

CBP published CSMS 4166411 on June 14, 2024. 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 4166411 affect?

CSMS 4166411 references 2 AD/CVD cases (A-557-300, A-570-028). 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?

Yes — for at-the-border filing and entry collection. CSMS messages translate Commerce's Federal Register determinations into operational CBP instructions that ACE/ACS systems and brokers execute. The Federal Register notice is the underlying legal authority; the CSMS is the operational implementation. Both should be read together when reconciling a rate or scope change.

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.

Open resource →

Determine if a product is in scope of an AD/CVD order

Scope text is authoritative; the HTS list is illustrative. Read scope, find past rulings, and file a 19 CFR 351.225 inquiry. Worked example on case A-570-106 (wooden cabinets from China).

Open resource →

Subscribe to and triage CBP CSMS messages

How to subscribe to CBP Cargo Systems Messaging Service and triage the messages that change broker filing behavior, without losing the ones that matter.

Open resource →

Real-time alerts when a CSMS message changes a duty rate

Set up alerts when a CBP CSMS message changes a duty rate on an HTS code you depend on. Built for brokers, forwarders, and importer compliance teams.

Open resource →

Check AD/CVD exposure by HTS code

A practical workflow for checking antidumping and countervailing duty exposure on a US entry. For brokers and ops teams who need the answer before filing.

Open resource →