HS code 283340: Peroxosulphates
- Covers:
- Sulphates; alums; peroxosulphates (persulphates): Peroxosulphates (persulphates).
- Listed US duty:
- 3.1%–3.7% (US general rate, HTS 2026)
Official description
Sulphates; alums; peroxosulphates (persulphates) : Peroxosulphates (persulphates)
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Suggestions from the HS index, not a customs ruling
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What 283340 covers and what it doesn’t
Official text: Sulphates; alums; peroxosulphates (persulphates) › Peroxosulphates (persulphates).
Nearby codes to check
- Heading 2833 Sulphates; alums; peroxosulphates (persulphates): every subheading side by side.
- 283311 Sodium sulphates — Disodium sulphate
- 283319 Sodium sulphates — Other
- 283321 Other sulphates — Of magnesium
- 283322 Other sulphates — Of aluminium
- 283324 Other sulphates — Of nickel
- 283325 Other sulphates — Of copper
- 283327 Other sulphates — Of barium
- 283329 Other sulphates — Other
- 283330 Alums
US duty rate
3.1%–3.7%
General (MFN) rate in the US Harmonized Tariff Schedule, 2026 edition. A range means the rate depends on the 8-digit US line your product falls under. Extra duties such as Section 301, Section 232 or anti-dumping orders can apply on top, depending on origin. Check the lines on hts.usitc.gov. Not legal advice.
Who imports under 283340
EximAgent lists companies with recorded shipments under this code, built from customs records, with who they buy from and how often. See importers of 283340 →
Common questions
- What is HS code 283340?
- Sulphates; alums; peroxosulphates (persulphates) : Peroxosulphates (persulphates)
- What duty rates apply to 283340?
- Listed US duty: 3.1%–3.7% (US general rate, HTS 2026).
Go beyond the code
Classify a product and check the duty for your destination with the CLI, then keep researching in your own agent.