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281129Chapter 28

281129 — Other inorganic acids and other inorganic oxygen compounds of non-metals: Other

Covers:
Other inorganic acids and other inorganic oxygen compounds of non-metals not listed under the other codes in this heading.
Not covered:
281111 (Other inorganic acids — Hydrogen fluoride…); 281112 (Other inorganic acids — Hydrogen cyanide…); 281119 (Other inorganic acids — Other); and others.
Listed US duty:
0%–4.2% (US general rate, HTS 2026)

Official description

Other inorganic acids and other inorganic oxygen compounds of non-metals : Other inorganic oxygen compounds of non-metals : Other

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What 281129 covers and what it doesn’t

Official text: Other inorganic acids and other inorganic oxygen compounds of non-metals › Other inorganic oxygen compounds of non-metals › Other.

This is the “other” line of heading 2811 (other inorganic acids and other inorganic oxygen compounds of non-metals). It takes goods of that heading that no more specific subheading names. These go elsewhere:

  • 281111 Other inorganic acids — Hydrogen fluoride (hydrofluoric acid)
  • 281112 Other inorganic acids — Hydrogen cyanide (hydrocyanic acid)
  • 281119 Other inorganic acids — Other
  • 281121 Other inorganic oxygen compounds of non-metals — Carbon dioxide
  • 281122 Other inorganic oxygen compounds of non-metals — Silicon dioxide

Nearby codes to check

  • Heading 2811 Other inorganic acids and other inorganic oxygen compounds of non-metals: every subheading side by side.

US duty rate

0%–4.2%

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 281129

EximAgent lists companies with recorded shipments under this code, built from customs records, with who they buy from and how often. See importers of 281129 →

Common questions

What is HS code 281129?
Other inorganic acids and other inorganic oxygen compounds of non-metals : Other inorganic oxygen compounds of non-metals : Other
What duty rates apply to 281129?
Listed US duty: 0%–4.2% (US general rate, HTS 2026).

Browse all of Chapter 28: Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes →

Go beyond the code

Classify a product and check the duty for your destination with the CLI, then keep researching in your own agent.

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