What is the US duty on sodium thiohydrate from China?
The USITC extract imported on 25 September 2026 does not use the words sodium thiohydrate. This page does not state a rate for that name.
Sodium sulfides, HTS 2830.10.00.00, is a different description. It stores 3.7 percent general and 25 percent other. That is not a sodium thiohydrate rate. Heading 2830 stores no rate. The anti-dumping file dated 16 May 2026 has no heading 2830 row. This file does not store a Section 301 percent for a name it does not list. This page is the United States file only. It does not state an Australian duty or a ChAFTA percent.
What the extract stores instead
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. A search of the descriptions does not find sodium thiohydrate. The extract also does not use the words hydrogen bromide, so this page does not state a rate for that name and does not copy the hydrobromic acid line onto it. Confirm the live schedule before you quote. Section 301 stays on the USTR Section 301 page.
| HTS | Description in the file | General rate | Additional duties |
|---|---|---|---|
| 2830 | Sulfides; polysulfides, whether or not chemically defined | blank | blank |
| 2830.10.00.00 | Sodium sulfides | 3.7% | blank |
| 2830.90 | Other | blank | blank |
| 2830.90.90.00 | Other | 3% | blank |
| 2832.30.10.00 | Sodium thiosulfate | 1.5% | blank |
The other column is not shown. It does not apply to goods of China.
Sodium sulfides stores the unit kg. It has no footnote. Its special-rate text is Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG). That text does not name China. None of that makes 3.7 percent a sodium thiohydrate rate. The line described only as Other under heading 2830 is not this name. Sodium thiosulfate is also a different description. Its special-rate text uses A*, not the sodium sulfides text. HTS 2832.30, described as Thiosulfates, stores no rate. This page does not copy 1.5 percent onto the missing name. The anti-dumping file has no heading 2832 row. That gap is not a finding that no order exists.
The file does use the word hydrosulfite, on HTS 3824.99.32.00, described as of hydrosulfite compounds, of sulfoxylate compounds, or of both. That line stores 6.5 percent general and 35 percent other. It is not sodium thiohydrate, and this page does not copy 6.5 percent onto that name. The same offer names pyridine before sodium thiohydrate. Pyridine is a different product. The answer is on US duty on pyridine from China.
The anti-dumping file, updated_at 2026-05-16T23:32:23.566Z, has no heading 2830 row. Check ACCESS before you treat that gap as a clearance.
A list of codes, three free and up to 50 on Pro, is on the China duty list. Subscribe for the longer list and the copyable report. A rate there is shown only when the file stores it.
Frequently asked
What is the US duty on sodium thiohydrate from China?
The USITC extract imported on 25 September 2026 does not use the words sodium thiohydrate. This page does not state a rate for that name. It does not copy a sulfide line, a thiosulfate line, or a hydrosulfite line onto it. Heading 2830 stores no rate. The anti-dumping file has no heading 2830 row. This page does not add a Section 301 percent.
Is sodium sulfide the same rate?
No. Sodium sulfides, HTS 2830.10.00.00, stores a general rate of 3.7 percent and an other rate of 25 percent. That description is not sodium thiohydrate. This page does not treat 3.7 percent as a rate for the missing name, and it does not treat 3.7 percent as a China total.
Is sodium thiosulfate the same line?
No. Sodium thiosulfate, HTS 2832.30.10.00, stores 1.5 percent general and 4.5 percent other. HTS 2832.30, described as Thiosulfates, stores no rate. This page does not copy 1.5 percent onto sodium thiohydrate.
Does the hydrosulfite line fill the gap?
No. HTS 3824.99.32.00 is described as of hydrosulfite compounds, of sulfoxylate compounds, or of both. It stores 6.5 percent general and 35 percent other. Hydrosulfite is not the words sodium thiohydrate. This page does not copy 6.5 percent onto that name.
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Sourzi shows what official files say. It is not customs or legal advice. For a binding answer, ask a licensed customs broker, a CBP ruling or an Australian Border Force Tariff Advice.
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