283531 — Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates;…: Sodium triphosphate (sodium tripolyphosphate)
HS code 283531 classifies Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates;…: Sodium triphosphate (sodium tripolyphosphate). It belongs to Chapter 28 (Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes) of Section VI (Products of the chemical or allied industries) of the Harmonized System. Duty rates are recorded for 1 country.
Description
Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates; polyphosphates, whether or not chemically defined : Polyphosphates : Sodium triphosphate (sodium tripolyphosphate)
Duty rates
US MFN base rate (HTS 2026, Column-1 General) — excludes Section 301 / IEEPA add-ons; not legal advice. Other countries’ rates and live duties via the EximAgent CLI.
- USUnited States1.4%MFNas of Jan 1, 2026
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
Find verified importers of 283531 — Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates;…: Sodium triphosphate (sodium tripolyphosphate) by country, with live tariff context, OFAC sanctions screening, and ready-to-send outreach — each result confidence-tagged.