What is the US duty on trichloroisocyanuric acid from China?
The USITC extract imported on 25 September 2026 names trichloroisocyanuric acid and sodium dichloroisocyanurate together on HTS 2933.69.60.15, and that line stores no rate. The file does not use TCCA or SDIC. The parent line HTS 2933.69.60, described only as Other, stores a general rate of 3.5 percent. The file does not copy that 3.5 percent onto the named suffix. That 3.5 percent is the general rate on the parent. It is not a China total.
Additional duties on the parent are blank, so this file does not store a Section 301 percent. Case A-570-898, chlorinated isocyanurates, stores no cash-deposit percent. This page is the United States file only. It does not state an Australian duty or a ChAFTA percent.
Open 2933.69.60.15 in the duty checkWhat the file stores on the named line
Source: USITC Harmonized Tariff Schedule export, updated_at 2026-09-25T11:27:06.251Z, from hts.usitc.gov exportList chapters 28 to 39. The public schedule is at hts.usitc.gov. Heading 2933 in the file reads "Heterocyclic compounds with nitrogen hetero-atom(s) only:" and stores no rate. HTS 2933.69, described as Other, also stores no rate. The parent that stores 3.5 percent has no unit. The named suffix stores kg and stores no rate. Neither line has a footnote.
| HTS | Description | General rate | Special rate | Additional duties |
|---|---|---|---|---|
| 2933.69.60 | Other | 3.5% | Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,L,MA,OM,P,PA,PE,S,SG) | blank |
| 2933.69.60.15 | Sodium dichloroisocyanurate and trichloroisocyanuric acid | blank | blank | blank |
The other column is not shown. It does not apply to goods of China.
The special-rate text on 2933.69.60 does not name China. This page does not treat Free as a China rate, does not apply the 25 percent other rate to a China shipment, and does not paste 3.5 percent onto 2933.69.60.15. Cyanuric chloride, HTS 2933.69.60.10, also stores a blank rate.
Hexamethylenetetramine, HTS 2933.69.50.00, stores 6.3 percent general and 58 percent other. It is not this line. Melamine, HTS 2933.61.00.00, stores 3.5 percent general and 25 percent other, and the file names that line Melamine. The answer is on US duty on melamine from China. Section 301 stays on the USTR Section 301 page.
Anti-dumping file
Source: the US AD/CVD file, updated_at 2026-05-16T23:32:23.566Z, 154 entries. The chlorinated-isocyanurates row points at the USITC news release stored as its source. This page does not read a percent out of that release. The file sets duty_rate_percent to null.
| Case | Type | Product in the file | HS tag | Cash-deposit percent |
|---|---|---|---|---|
| A-570-898 | anti-dumping | Chlorinated isocyanurates | 2933 | not stored |
Exporting country is China. The manufacturer field reads "All exporters (cooperative-exporter list per case file)". Sunset status reads "five-year-review-cycle". The file does not store an order date or an expiry date. There is no countervailing row for chlorinated isocyanurates. The product text does not say trichloroisocyanuric acid. Cases A-570-020 and C-570-021 are melamine on the same heading and are not this row. Check ACCESS before you treat the blank cash-deposit field as a clearance.
Frequently asked
What is the US duty on trichloroisocyanuric acid from China?
The USITC extract imported on 25 September 2026 names trichloroisocyanuric acid and sodium dichloroisocyanurate together on HTS 2933.69.60.15, and that line stores no rate. The file does not use TCCA or SDIC. The parent line HTS 2933.69.60, described only as Other, stores a general rate of 3.5 percent. The file does not copy that 3.5 percent onto the named suffix. That 3.5 percent is the general rate on the parent, not a China total. Additional duties on the parent are blank, so this file does not store a Section 301 percent. Case A-570-898 stores no cash-deposit percent.
Does the 3.5 percent include Section 301?
No. additional_duties on 2933.69.60 is blank. The suffix 2933.69.60.15 also stores no additional duties. Section 301 list membership and the extra percent are not in this file. Read the line on hts.usitc.gov and the USTR Section 301 page before you quote.
Is melamine the same line?
No. Melamine is HTS 2933.61.00.00. It also stores 3.5 percent general and 25 percent other, but the file names that line Melamine. Its special-rate text does not include K or L. The Other line 2933.69.60 does include K and L. Neither special-rate text names China. Cases A-570-020 and C-570-021 are melamine, not this suffix.
Is there a US anti-dumping case on trichloroisocyanuric acid from China in this file?
The anti-dumping file dated 16 May 2026 lists A-570-898, product Chlorinated isocyanurates, exporting country China, heading 2933. That product text does not say trichloroisocyanuric acid or sodium dichloroisocyanurate. The row sets duty_rate_percent to null. There is no countervailing row for that product. That gap is not a finding that no order exists. The cash-deposit rate, if a case covers the shipment, is on ACCESS.
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