HS code 283190: Dithionites and Sulphoxylates
- Covers:
- Dithionites and sulphoxylates not listed under the other codes in this heading.
- Not covered:
- 283110 (Of sodium).
- Listed US duty:
- 5.5% (US general rate, HTS 2026)
Official description
Dithionites and sulphoxylates : Other
Find or check your HS code
Suggestions from the HS index, not a customs ruling
Describe what you ship: what it is, what it is made of, how it is processed and what it is used for. I narrow it down against the real HS hierarchy, or check a code you were given.
What 283190 covers and what it doesn’t
Official text: Dithionites and sulphoxylates › Other.
This is the “other” line of heading 2831 (dithionites and sulphoxylates). It takes goods of that heading that no more specific subheading names. These go elsewhere:
- 283110 Of sodium
Nearby codes to check
- Heading 2831 Dithionites and sulphoxylates: every subheading side by side.
US duty rate
5.5%
General (MFN) rate in the US Harmonized Tariff Schedule, 2026 edition. A range means the rate depends on the 8-digit US line your product falls under. Extra duties such as Section 301, Section 232 or anti-dumping orders can apply on top, depending on origin. Check the lines on hts.usitc.gov. Not legal advice.
Common questions
- What is HS code 283190?
- Dithionites and sulphoxylates : Other
- What duty rates apply to 283190?
- Listed duty rates range from 5.5% across 1 country rate.
Go beyond the code
Find the companies shipping under 283190 in the company directory, or classify and check duty with the CLI.