US AD/CVD order record · dataset entry, not legal advice.
Source: Federal Register · data retrieved 2026-10-16T14:24:03Z
The merchandise subject to the Order is sodium hexametaphosphate (SHMP). SHMP is a water-soluble polyphosphate glass that consists of a distribution of polyphosphate chain lengths. It is a collection of sodium polyphosphate polymers built on repeating NaPO3 units. SHMP has a P2O5 content from 60 to 71 percent. Alternate names for SHMP include the following: Calgon; Calgon S; Glassy Sodium Phosphate; Sodium Polyphosphate, Glassy; Metaphosphoric Acid; Sodium Salt; Sodium Acid Metaphosphate; Graham's Salt; Sodium Hex; Polyphosphoric Acid, Sodium Salt; Glass H; Hexaphos; Sodaphos; Vitrafos; and BAC-N-FOS. SHMP is typically sold as a white powder or granule (crushed) and may also be sold in the form of sheets (glass) or as a liquid solution. It is imported under heading 2835.39.5000, HTSUS. It may also be imported as a blend or mixture under heading 3824.90.3900, HTSUS. The American Chemical Society, Chemical Abstract Service (CAS) has assigned the name ``Polyphosphoric Acid, Sodium Salt'' to SHMP. The CAS registry number is 68915-31-1. However, SHMP is commonly identified by CAS No. 10124- 56-8 in the market. For purposes of the Order, the narrative description is dispositive, not the tariff heading, CAS registry number or CAS name. The product covered by the Order includes SHMP in all grades, whether food grade or technical grade. The product covered by the Order includes SHMP without regard to chain length i.e., whether regular or long chain. The product covered by the Order includes SHMP without regard to physical form, whether glass, sheet, crushed, granule, powder, fines, or other form, and whether or not in solution. However, the product covered by the Order does not include SHMP when imported in a blend with other materials in which the SHMP accounts for less than 50 percent by volume of the finished product. Continuation of the Order As a result of the determinations by Commerce and the ITC that revocation of the Order would likely lead to continuation or recurrence of dumping and material injury to an industry in the United States, pursuant to section 751(d)(2) of the Act, Commerce hereby orders the continuation of the Order. U.S. Customs and Border Protection will continue to collect AD cash deposits at the rates in effect at the time of entry for all imports of subject merchandise. The effective date of the continuation of the Order is October 2, 2024. Pursuant to section 751(c)(2) of the Act and 19 CFR 351.218(c)(2), Commerce intends to initiate the next five-year review of the Order not later than 30 days prior to the fifth anniversary of the date of the last determination by the Commission. Administrative Protective Order (APO) This notice also serves as the only reminder to parties subject to an APO of their responsibility concerning the return or destruction of proprietary information disclosed under APO in accordance with 19 CFR 351.305(a)(3), which continues to govern business proprietary information in this segment of the proceedings. Timely written notification of the return or destruction of APO materials, or conversion to judicial protective order, is hereby requested. Failure to comply with the regulations and terms of an APO is a violation which is subject to sanction. Notification to Interested Parties This five-year (sunset) review and this notice are in accordance with sections 751(c) and 751(d)(2) of the Act, and published in accordance with section 777(i) of the Act and 19 CFR 351.218(f)(4). Dated: October 4, 2024. Ryan Majerus, Deputy Assistant Secretary for Policy and Negotiations, performing the non-exclusive functions and duties of the Assistant Secretary for Enforcement and Compliance. [FR Doc.
Scope text quoted verbatim from the Federal Register notice. Scope text retrieved: 2026-10-19T16:17:45Z. Record last fetched: 2026-10-16T14:24:03Z. Verify against the official notice before relying on it.
| HTSUS (dotted) | 8-digit | Description (USITC reference) |
|---|---|---|
| 2835.39.10 | 28353910 | Of potassium |
| 2835.39.50 | 28353950 | Other |
The scope text also references HS prefix(es) 382490 that we do not yet resolve against our USITC HTS reference table; they are shown verbatim instead of being guessed.
Quoting this shipment? Estimate its landed rate in the US tariff calculator, set up change alerts in a free ExportSonar account, or compare plan limits and pricing.
At a glance
The antidumping measure covers Sodium Hexametaphosphate, imported from China. Case number A-570-908 is one of 540 active orders tracked in the database and was established 2024-05-29; the described product range determines which ten-digit lines inherit the cash-deposit obligation. Scope language in the Federal Register document controls.
As of dataset vintage 2026-10-16T16:09:24Z, yes: importers entering covered goods post a cash deposit at the current rate until Commerce's next administrative review publishes revised margins in the Federal Register. Deposit rates can change every review cycle, so confirm the latest Federal Register notice before you quote a figure to your customs broker.
These HTS headings are recorded in the case linkage: 2835.39.10, 2835.39.50. Confirm the exact ten-digit code against the published scope language, because product descriptions rather than codes alone define the legal boundary of the order, and scope rulings occasionally widen or narrow which lines inherit the deposit obligation.
Primary sources: Federal Register — A-570-908 · USITC Harmonized Tariff Schedule — republished with provenance by exportsonar.com