CSMS 5274402·Trade policy·October 1, 2025·View on csms.cbp.gov ↗

Notice of affirmative preliminary determination: antidumping duty investigation of silicon metal from Angola (A-762-001)

Plain-English explanation

CSMS 5274402 is a U.S. Customs and Border Protection (CBP) Cargo Systems Messaging Service bulletin (trade policy), published on October 1, 2025. It carries the official CBP guidance brokers and importers must follow for the topic — "Notice of affirmative preliminary determination: antidumping duty investigation of silicon metal from Angola (A-762-001)". 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-762-001

Message body

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

1. On 09/30/2025, Commerce published in the Federal Register its affirmative preliminary determination of sales at less than fair value in the antidumping duty investigation of silicon metal from Angola (90 FR 46810). Note to CBP: Commerce incorrectly identified the period of investigation in the preliminary determination Federal Register notice. The correct period of investigation is 04/01/2024 to 03/31/2025. 2. The products covered by this investigation are described in message 5155411, dated 06/04/2025. 3. This proceeding has been assigned case number A-762-001. 4. For imports of silicon metal from Angola, CBP shall suspend liquidation of such shipments entered, or withdrawn from warehouse, for consumption on or after 09/30/2025. Effective 09/30/2025, CBP shall require, for such entries, a cash deposit equal to the margins for the producers and/or exporters listed below: Producer and/or Exporter: PC Silicon Co Limited Case number: A-762-001-001 Cash deposit rate: 68.45% Producer and/or Exporter: Wanhongda International Limited Case number: A-762-001-002 Cash deposit rate: 68.45% All Others Case Number: A-762-001-000 Cash Deposit Rate: 68.45% 5. If any entries of this merchandise are exported by a firm other than the producer, then the following instructions apply: A. If the exporter of the subject merchandise does not have its own rate but the producer has its own rate, the cash deposit rate will be the producer's rate. B. Where neither the exporter nor the producer has its own rate or the producer is unknown, use the all-others rate of 68.45 percent to establish the cash deposit. 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 OIX:CD.) 7. There are no restrictions on the release of this information. Alexander Amdur

Frequently asked questions

What is CSMS 5274402?

CSMS 5274402 is a U.S. Customs and Border Protection (CBP) Cargo Systems Messaging Service bulletin titled "Notice of affirmative preliminary determination: antidumping duty investigation of silicon metal from Angola (A-762-001)". 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 5274402 published?

CBP published CSMS 5274402 on October 1, 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 5274402 affect?

CSMS 5274402 references 1 AD/CVD case (A-762-001). 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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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.