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283539Chapter 28

283539Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates;…: Other

HS code 283539 classifies Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates;…: Other. 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 : Other

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 States3.1%–3.7%
    MFNas of Jan 1, 2026

Common questions

What is HS code 283539?
Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates; polyphosphates, whether or not chemically defined : Polyphosphates : Other
What duty rates apply to 283539?
Listed US duty: 3.1%–3.7% — see the duty-rates table for the full breakdown.

Browse all of Chapter 28: Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes

Go beyond the code

Find verified importers of 283539Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates;…: Other by country, with live tariff context, OFAC sanctions screening, and ready-to-send outreach — each result confidence-tagged.

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