Heading 2815: Sodium hydroxide (Caustic soda); potassium hydroxide (Caustic potash); peroxides of sodium…
Every line of heading 2815 in the U.S. Harmonized Tariff Schedule, with its general (column 1) duty rate. Open a code for the landed cost calculator, trade agreement rates and email alerts if the rate changes.
Sodium hydroxide (Caustic soda); potassium hydroxide (Caustic potash); peroxides of sodium or potassium
Chapter 28: Inorganic chemicals. Schedule checked on November 8, 2026.
Not always the total: additional chapter 99 duties (such as Section 232 or Section 301), antidumping or countervailing duties may apply depending on the country of origin. See recent chapter 99 changes →
Tariff lines
| HTS code | Official description | General rate |
|---|---|---|
| 2815.11.00.00 | Solid | Free |
| 2815.12.00.00 | In aqueous solution (Soda lye or liquid soda) | Free |
| 2815.20.00 | Potassium hydroxide (Caustic potash) | Free |
| 2815.20.00.50 | In solid form | |
| 2815.20.00.90 | Other | |
| 2815.30.00.00 | Peroxides of sodium or potassium | 3.7% |
Exporting this product from the U.S.?
Exports are reported with Schedule B numbers. Heading 2815 has 5 of them. Schedule B lookup →
- 2815.11.0000SOLID SODIUM HYDROXIDE (CAUSTIC SODA)
- 2815.12.0000SODIUM HYDROXIDE IN AQUEOUS SOLUTION (SODA LYE OR LIQUID SODA)
- 2815.20.0050POTASSIUM HYDROXIDE (CAUSTIC POTASH), IN SOLID FORM
- 2815.20.0090POTASSIUM HYDROXIDE (CAUSTIC POTASH), NESOI
- 2815.30.0000PEROXIDES OF SODIUM OR POTASSIUM
Source: U.S. International Trade Commission, Harmonized Tariff Schedule; Schedule B: U.S. Census Bureau. Information only, not legal or customs advice; U.S. Customs and Border Protection decides the classification and the duty. Confirm with a licensed customs broker before you ship.
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