What is the US duty on potassium hydroxide from China?
The USITC extract imported on 25 September 2026 stores a general rate of Free on HTS 2815.20.00, described as potassium hydroxide (caustic potash). The other rate on that line is 2.2¢/kg. The special rate is blank. That Free general rate is not a China total.
The solid and other suffixes store no rate. Additional duties on 2815.20.00 are blank, so this file does not store a Section 301 percent. The anti-dumping file dated 16 May 2026 has no heading 2815 row and stores no cash-deposit percent for it. This page is the United States file only. It does not state an Australian duty or a ChAFTA percent.
Rate stored on the caustic potash 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. HTS 2815.20.00 has no unit and no footnote. The two suffixes store the unit kg, and they store no rate and no footnote.
| HTS | Description | General rate | Special rate | Additional duties |
|---|---|---|---|---|
| 2815.20.00 | Potassium hydroxide (Caustic potash) | Free | blank | blank |
| 2815.20.00.50 | In solid form | blank | blank | blank |
| 2815.20.00.90 | Other | blank | blank | blank |
The other column is not shown. It does not apply to goods of China.
The other rate is stored as text. This page does not turn 2.2¢/kg into a dollar figure, and it does not add it to Free. Sodium hydroxide is a different product. Its answer is on US duty on caustic soda from China.
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 potassium hydroxide from China?
The USITC extract imported on 25 September 2026 stores a general rate of Free on HTS 2815.20.00, described as potassium hydroxide (caustic potash). The other rate on that line is 2.2¢/kg. The special rate is blank. That Free general rate is not a China total. Additional duties are blank, so this file does not store a Section 301 percent. The anti-dumping file has no heading 2815 row.
Does Free include Section 301?
No. additional_duties on 2815.20.00 is blank. 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.
Do the solid and other suffixes store Free?
No. HTS 2815.20.00.50, in solid form, stores a blank rate. HTS 2815.20.00.90, other, stores a blank rate. Both store the unit kg and no footnote. The file does not copy Free from 2815.20.00 onto those suffixes.
Is there a US anti-dumping case on potassium hydroxide from China in this file?
The anti-dumping file dated 16 May 2026 has 154 entries and no row for potassium hydroxide or heading 2815. 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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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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