HS code 2815.20: Potassium hydroxide (caustic potash)
Last updated
Key facts
- HS code
- 2815.20
- Covers
- Potassium hydroxide (caustic potash)
- Edition
- HS2022
- Duty rates
- Set by each country’s tariff
Summary
HS code 2815.20 covers potassium hydroxide (caustic potash). It sits in heading 28.15 (sodium hydroxide (caustic soda); potassium hydroxide (caustic potash); peroxides of sodium or potassium) in chapter 28 (inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes). Other goods of heading 28.15 are classified under 2815.11 (sodium hydroxide (caustic soda), solid), 2815.12 (sodium hydroxide (caustic soda), in aqueous solution (soda lye or liquid soda)) or 2815.30 (peroxides of sodium or potassium).
What this code covers
HS code 2815.20 covers potassium hydroxide (caustic potash).
The legal text of the subheading is “Potassium hydroxide (caustic potash)”, in HS2022.
What it doesn’t cover
Other goods of heading 28.15 are classified under 2815.11 (sodium hydroxide (caustic soda), solid), 2815.12 (sodium hydroxide (caustic soda), in aqueous solution (soda lye or liquid soda)) or 2815.30 (peroxides of sodium or potassium).
How it is structured
2815.20 is a six-digit subheading. Its first two digits, 28, are the chapter; the first four, 2815, are heading 28.15; the last two, 20, identify the subheading within the heading.
Countries add their own digits after these six for their national tariff lines.
- Heading 28.15
- Sodium hydroxide (caustic soda); potassium hydroxide (caustic potash); peroxides of sodium or potassium
- Subheading 2815.20
- Potassium hydroxide (caustic potash)
In other countries
No national tariff lines under 2815.20 are live on border.bot yet. Tariffs built on the Harmonized System (HS2022) use 2815.20 at six digits and add their own digits after it.
Frequently asked questions
What does HS code 2815.20 cover?
HS code 2815.20 covers potassium hydroxide (caustic potash).
Which heading and chapter is HS code 2815.20 in?
HS code 2815.20 is in heading 28.15 (sodium hydroxide (caustic soda); potassium hydroxide (caustic potash); peroxides of sodium or potassium) in chapter 28 (inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes).
Where are goods of heading 28.15 classified when 2815.20 doesn’t fit?
Other goods of heading 28.15 are classified under 2815.11 (sodium hydroxide (caustic soda), solid), 2815.12 (sodium hydroxide (caustic soda), in aqueous solution (soda lye or liquid soda)) or 2815.30 (peroxides of sodium or potassium).
Sources and updates
The Harmonized System legal text comes from border.bot release 1 (edition HS 2022), imported from a file, and has been live since 13 October 2026.
This page was last updated on 13 October 2026.
Guidance from published tariff data, not a binding ruling. For a decision customs must follow, apply to the destination’s customs authority for a binding tariff ruling.