2840.30.00.10
Borates; peroxoborates (perborates) / Peroxoborates (perborates) / Sodium perborate
Classification path
- Borates; peroxoborates (perborates)
- Peroxoborates (perborates)
- Sodium perborate
Rates of duty
- General (MFN)
- 3.7%
- Column 2Cuba, North Korea, Russia, Belarus
- 25%
- Unit of quantity
- kg
Trade agreement rates
Related lines in heading 2840
About heading 2840
Borates; peroxoborates (perborates)
Heading 2840 covers borates, which are salts of boric acid, and peroxoborates (perborates), which are boron compounds carrying a peroxo group. The heading first splits disodium tetraborate (refined borax) into an anhydrous line and an other line, then provides a single line for all other borates. The last split separates sodium perborate from other peroxoborates.
Full guide to heading 2840Products in this heading
- Refined borax, anhydrous (disodium tetraborate with no water of crystallization)
- Refined borax decahydrate and borax pentahydrate
- Sodium metaborate and other sodium borate salts
- Zinc borate used as a flame retardant additive
- Ammonium pentaborate and potassium borate salts
- Sodium perborate monohydrate and tetrahydrate
- Other peroxoborates used as bleaching agents
Frequently asked questions
What is the HTS code for anhydrous refined borax?
Anhydrous disodium tetraborate (refined borax) is 2840.11.00.00, dutiable at a general (MFN) rate of 0.3%.
What is the duty on sodium perborate?
Sodium perborate is 2840.30.00.10, dutiable at a general (MFN) rate of 3.7%.
How do I classify borax decahydrate?
Refined borax that contains water of crystallization, such as the decahydrate, is 2840.19.00.00, dutiable at a general (MFN) rate of 0.1%.
Source: USITC Harmonized Tariff Schedule, retrieved October 21, 2026.