# United States tariff lines under HS 2815.20

> The United States tariff splits HS 2815.20 (potassium hydroxide (caustic potash)) into 2 national lines: 2815.20.00.50 (in solid form) and 2815.20.00.90 (other). Every United States line under 2815.20 is free of general (MFN) duty.

Source: https://border.bot/countries/united-states/hs-codes/281520
Last updated: 9 October 2026

[Countries](https://border.bot/countries) / [United States](https://border.bot/countries/united-states) / [Chapter 28](https://border.bot/countries/united-states/hs-codes/28) / [2815.20](https://border.bot/countries/united-states/hs-codes/281520)

## Key facts

- HS subheading: [2815.20](https://border.bot/hs-codes/281520)
- Duty (MFN): Free
- National lines: 2
- Tariff: [United States](https://border.bot/countries/united-states)
- Chapter: 28: Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes

## United States lines under 2815.20

The United States tariff splits HS 2815.20 (potassium hydroxide (caustic potash)) into 2 national lines: 2815.20.00.50 (in solid form) and 2815.20.00.90 (other).

Every United States line under 2815.20 is free of general (MFN) duty.

- [2815.20.00.50](https://border.bot/countries/united-states/hs-codes/2815200050) Potassium hydroxide (Caustic potash), In solid form. Duty (MFN): free
- [2815.20.00.90](https://border.bot/countries/united-states/hs-codes/2815200090) Potassium hydroxide (Caustic potash), Other. Duty (MFN): free

## In other countries

No other national tariff on border.bot has live lines under 2815.20 yet.

- [The Harmonized System text for 2815.20](https://border.bot/hs-codes/281520)

- Previous subheading: [2815.12](https://border.bot/countries/united-states/hs-codes/281512) Sodium hydroxide (Caustic soda); potassium hydroxide (Caustic potash); peroxides of sodium or potassium
- Next subheading: [2815.30](https://border.bot/countries/united-states/hs-codes/281530) Sodium hydroxide (Caustic soda); potassium hydroxide (Caustic potash); peroxides of sodium or potassium

## Frequently asked questions

### How many national tariff lines does the United States tariff have under HS 2815.20?

The United States tariff splits HS 2815.20 (potassium hydroxide (caustic potash)) into 2 national lines: 2815.20.00.50 (in solid form) and 2815.20.00.90 (other).

### What is the duty on HS 2815.20 in the United States?

Every United States line under 2815.20 is free of general (MFN) duty.

## Sources and updates

The tariff lines for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.

The duty rates for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.

The trade programmes for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.

This page was last updated on 9 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.

Official source files:

- https://hts.usitc.gov/reststop/exportList?from=0000000000&to=9999999999&format=CSV&styles=false

Machine-readable: https://border.bot/countries/united-states/hs-codes/281520.json