# 283525 — Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates;…: Calcium hydrogenorthophosphate (‘dicalcium phosphate’)

HS code 283525 classifies Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates;…: Calcium hydrogenorthophosphate (‘dicalcium phosphate’). 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.

> Section VI · Products of the chemical or allied industries
> Chapter 28 · Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes

**HS code:** `283525`

## Description

Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates; polyphosphates, whether or not chemically defined : Phosphates : Calcium hydrogenorthophosphate (‘dicalcium phosphate’)

## Duty rates

| Country | Rate | Programme |
| --- | --- | --- |
| US United States | 0% | MFN |

Rates effective as of 2026-01-01.

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Source: https://hscode.eximagent.ai/28/283525
Last updated: 2026-06-03
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