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GOODS ACROSS BORDERS

HS HEADING 2830

Sulphides; polysulphides whether or not chemically defined

In plain English

This category covers sulphides and polysulphides, regardless of whether they are chemically defined. The goods are split into two groups based on their chemical composition. One group includes sulphides of sodium, whether or not they are chemically defined. The other group includes all other sulphides and polysulphides that are not sulphides of sodium.

PARAPHRASE OF THE OFFICIAL HS 2022 TEXTS BELOW — NOT LEGAL ADVICE

6-digit subheadings (2)

Official HS 2022 subheading texts. National tariff schedules subdivide these further (8-10 digit lines) and set the actual duty rates.

2830.10

Sulphides; of sodium, whether or not chemically defined

2830.90

Sulphides and polysulphides; whether or not chemically defined, other than sulphides of sodium

Chapter 28 classification notes

Chapter 28 contains many DG-class 8 corrosive substances and class 6 toxic substances. Personal-import effectively zero; commercial imports require IATA shipper's declaration + destination MSDS compliance.

Frequent misclassification in this chapter

Pharmaceutical-grade vs. industrial-grade chemistry — same molecule, different chapter (Chapter 30 vs. 28).

Classification certainty

The 6-digit level shown here is the internationally harmonised layer. Duty rates attach to national 8-10 digit tariff lines, which differ by country — use the duty calculator for lane estimates. For binding certainty, request a ruling from the destination customs authority.

Binding tariff ruling database

Other headings in Chapter 28

RULES5,339COUNTRIES85ITEMS111CARRIERS28GUIDES46UNIQUE SOURCES645LATEST VERIFICATION2026-07-26MethodologyChangelog