C-570-963: countervailing duty order on Potassium Phosphate Salts from China

C-570-963 is the US Department of Commerce case number for the countervailing duty order on Potassium Phosphate Salts from China, in force since 22 July 2010 and continued after a sunset review on 12 July 2021. Goods in scope entered under this case carry a countervailing cash deposit at entry on top of the normal duty.

Reviewed September 2026 against the ITA order list and the Federal Register.

Case numberC-570-963Countervailing duty (CVD)
Companion antidumping duty caseA-570-962 antidumping →the same product from the same country under the other duty law; both deposits apply to one entry
ProductPotassium Phosphate Salts ITA commodity group: Chemicals and Allied Industries
CountryChina
StatusCurrent Order
Order date22 July 2010 75 FR 42682
Latest continuation12 July 2021 86 FR 36524
Next sunset reviewJune 2026 month Commerce is due to initiate the five-year review

Rates

The rate table for this case is not carried on this page. The cash deposit an entry pays is the rate assigned to the exporter or producer on the invoice in the latest administrative review; look it up in Commerce's ACCESS case record or ask your broker.

HTS numbers named in the scope

The subheadings the notice lists as the ones subject merchandise may enter under. They are given for convenience; the written scope is what decides whether goods are covered, and goods under other numbers can still be in scope.

  • 2835.39.1000
  • 2835.24.0000

Scope, from the order notice

Scope of the Order The phosphate salts covered by this order include anhydrous Dipotassium Phosphate (DKP) and Tetrapotassium Pyrophosphate (TKPP), whether anhydrous or in solution (collectively ``phosphate salts''). TKPP, also known as normal potassium pyrophosphate, Diphosphoric acid or Tetrapotassium salt, is a potassium salt with the formula K<INF>4</INF>P<INF>2</INF>O<INF>7</INF>. The CAS registry number for TKPP is 7320-34-5. TKPP is typically 18.7% phosphorus and 47.3% potassium. It is generally greater than or equal to 43.0% P<INF>2</INF>O<INF>5</INF> content. TKPP is classified under heading 2835.39.1000, Harmonized Tariff Schedule of the United States (HTSUS). DKP, also known as Dipotassium salt, Dipotassium hydrogen orthophosphate or Potassium phosphate, dibasic, has a chemical formula of K<INF>2</INF>HPO<INF>4</INF>. The CAS registry number for DKP is 7758-11-4. DKP is typically 17.8% phosphorus, 44.8% potassium and 40% P<INF>2</INF>O<INF>5</INF> content. DKP is classified under heading 2835.24.0000, HTSUS. The products covered by this order include the foregoing phosphate salts in all grades, whether food grade or technical grade. The product covered by this order includes anhydrous DKP without regard to the physical form, whether crushed, granule, powder or fines. …

Excerpt from 75 FR 42682. Scopes are amended by later scope rulings and circumvention findings; the notice list below has them.

What C-570-963 means when you import

Cash deposit at entry. For every entry of goods in scope, CBP collects an estimated countervailing duty cash deposit at the rate assigned to the exporter or producer on the entry, on top of the Column 1 duty and any Chapter 99 trade-remedy lines. Because a companion antidumping case exists, an entry of Potassium Phosphate Salts from China carries both deposits. The same product from two plants in China can deposit at different rates, so ask the supplier which legal entity will appear as exporter and as producer on the invoice before you price the order.

Deposit now, final duty later. The deposit is not the final duty. The entry stays unliquidated until Commerce completes the administrative review for the period it was entered in, then CBP liquidates it at the rate that review sets, and bills or refunds the difference with interest. AD/CVD entries therefore stay open for years, and the importer of record carries the difference. Commerce must be asked for a review each anniversary month of the order; if nobody asks, entries liquidate at the deposit rate.

Reimbursement certificate. Before liquidation the importer files a certificate under 19 CFR 351.402(f)(2) stating whether the exporter has paid or reimbursed the antidumping duty. If it is not filed, Commerce may presume reimbursement and deduct the duty a second time in the margin calculation. Brokers file it with the entry summary; make sure yours does.

Entry reporting. The AD/CVD case number goes on the 7501 line alongside the HTS number, and any Chapter 99 lines the goods carry are reported in the order CBP prescribes; the tariff updates tracker carries the current Chapter 99 sequence and the actions behind it. Goods finished, cut or packaged in a third country stay in scope if the notice's written scope covers them, so a change of shipping origin is not a change of AD/CVD origin.

Estimating the stack. The tariff simulator returns the Column 1 rate and the Chapter 99 additional duties for an HTS number and origin; it does not add antidumping or countervailing deposits. Add the deposit at your supplier's current rate on top of what it shows. Airlift USA does not hold a US customs broker licence; entries on cargo we move are filed through our licensed broker network.

Federal Register notices

All 10 notices on docket C-570-963 at federalregister.gov → · Case record in Commerce's ACCESS →

Other AD/CVD cases on goods from China

A-570-045 1-Hydroxyethylidene-1, 1-Diphosphonic Acid (HEDP) ADC-570-046 1-Hydroxyethylidene-1, 1-Diphosphonic Acid (HEDP) CVDA-570-044 1,1,1,2-Tetrafluoroethane (R-134a) ADA-570-160 2,4-Dichlorophenoxyacetic Acid ADC-570-161 2,4-Dichlorophenoxyacetic Acid CVDA-570-904 Activated Carbon ADA-570-168 Alkyl Phosphate Esters ADC-570-169 Alkyl Phosphate Esters CVDA-570-104 Alloy and Certain Carbon Steel Threaded Rod ADA-570-967 Aluminum Extrusions ADC-570-968 Aluminum Extrusions CVDA-570-053 Aluminum Foil AD

All orders in place, searchable by product, country and case →

Case list: AD/CVD Orders and Suspension Agreements, International Trade Administration, Enforcement and Compliance — ITA dashboard, export of September 2026. Notices, rates and HTS numbers: Federal Register API v1. Both are US Government works in the public domain. This page is a reference, not legal or customs advice.

Importing potassium phosphate salts from China under C-570-963?

Tell us the product, the exporter and producer named on the invoice, the load port, the US delivery point and the ready date. We come back with the ocean freight, the destination charges and how the entry is filed through our licensed broker network; the AD/CVD cash deposit itself is set by the rate on the entry, not by us.

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