HS code 283531: Sodium Triphosphate
- Covers:
- Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates; polyphosphates…
- Listed US duty:
- 1.4% (US general rate, HTS 2026)
Official description
Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates; polyphosphates, whether or not chemically defined : Polyphosphates : Sodium triphosphate (sodium tripolyphosphate)
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 283531 covers and what it doesn’t
Official text: Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates; polyphosphates, whether or not chemically defined › Polyphosphates › Sodium triphosphate (sodium tripolyphosphate).
Nearby codes to check
- Heading 2835 Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates; polyphosphates, whether or not chemically defined: every subheading side by side.
- 283510 Phosphinates (hypophosphites) and phosphonates (phosphites)
- 283522 Phosphates — Of mono- or disodium
- 283524 Phosphates — Of potassium
- 283525 Phosphates — Calcium hydrogenorthophosphate (‘dicalcium phosphate’)
- 283526 Phosphates — Other phosphates of calcium
- 283529 Phosphates — Other
- 283539 Polyphosphates — Other
US duty rate
1.4%
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.
Who imports under 283531
EximAgent lists companies with recorded shipments under this code, built from customs records, with who they buy from and how often. See importers of 283531 →
Common questions
- What is HS code 283531?
- Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates; polyphosphates, whether or not chemically defined : Polyphosphates : Sodium triphosphate (sodium tripolyphosphate)
- What duty rates apply to 283531?
- Listed duty rates range from 1.4% across 1 country rate.
Go beyond the code
Classify a product and check the duty for your destination with the CLI, then keep researching in your own agent.