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283330Chapter 28

283330Sulphates; alums; peroxosulphates (persulphates): Alums

HS code 283330 classifies Sulphates; alums; peroxosulphates (persulphates): Alums. 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

Sulphates; alums; peroxosulphates (persulphates) : Alums

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 States1.6%
    MFNas of Jan 1, 2026

Common questions

What is HS code 283330?
Sulphates; alums; peroxosulphates (persulphates) : Alums
What duty rates apply to 283330?
Listed duty rates range from 1.6% across 1 country rate.

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 283330Sulphates; alums; peroxosulphates (persulphates): Alums by country, with live tariff context, OFAC sanctions screening, and ready-to-send outreach — each result confidence-tagged.

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