# HTS 2815: Sodium hydroxide (Caustic soda); potassium hydroxide (Caustic potash); peroxides of sodium or potassium:

https://geopax.app/tariffs/catalog/28/2815

Source: [2026 HTS Revision 21 (October 9, 2026)](https://hts.usitc.gov/search?query=2815). Additional duties by country of origin may apply; estimate a shipment's full duty with the tariff calculator: https://geopax.app/tariffs/calculator

## 2815: Sodium hydroxide (Caustic soda); potassium hydroxide (Caustic potash); peroxides of sodium or potassium:

| Code | Description | General | Special | Column 2 | Units |
| --- | --- | --- | --- | --- | --- |
| 2815 | Sodium hydroxide (Caustic soda); potassium hydroxide (Caustic potash); peroxides of sodium or potassium: |  |  |  |  |
|  |   Sodium hydroxide (Caustic soda): |  |  |  |  |
| 2815.11.00.00 |     Solid | Free |  | 1.1¢/kg | kg |
| 2815.12.00.00 |     In aqueous solution (Soda lye or liquid soda) | Free |  | 1.1¢/kg | kg, NaOH kg |
| 2815.20.00 |   Potassium hydroxide (Caustic potash) | Free |  | 2.2¢/kg |  |
| 2815.20.00.50 |     In solid form | Free |  | 2.2¢/kg | kg |
| 2815.20.00.90 |     Other | Free |  | 2.2¢/kg | kg |
| 2815.30.00.00 |   Peroxides of sodium or potassium | 3.7% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 25% | kg |