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281520Chapter 28

HS code 281520: Potassium Hydroxide

Covers:
Sodium hydroxide (caustic soda); potassium hydroxide (caustic potash); peroxides of sodium…
Listed US duty:
0% (US general rate, HTS 2026)

Official description

Sodium hydroxide (caustic soda); potassium hydroxide (caustic potash); peroxides of sodium or potassium : Potassium hydroxide (caustic potash)

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Suggestions from the HS index, not a customs ruling

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What 281520 covers and what it doesn’t

Official text: Sodium hydroxide (caustic soda); potassium hydroxide (caustic potash); peroxides of sodium or potassium › Potassium hydroxide (caustic potash).

Nearby codes to check

  • Heading 2815 Sodium hydroxide (caustic soda); potassium hydroxide (caustic potash); peroxides of sodium or potassium: every subheading side by side.
  • 281511 Sodium hydroxide (caustic soda) — Solid
  • 281512 Sodium hydroxide (caustic soda) — In aqueous solution (soda lye or liquid soda)
  • 281530 Peroxides of sodium or potassium

US duty rate

0%

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 281520

EximAgent lists companies with recorded shipments under this code, built from customs records, with who they buy from and how often. See importers of 281520 →

Common questions

What is HS code 281520?
Sodium hydroxide (caustic soda); potassium hydroxide (caustic potash); peroxides of sodium or potassium : Potassium hydroxide (caustic potash)
What duty rates apply to 281520?
Listed duty rates range from 0% across 1 country rate.

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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