HS Chapter 28 — Inorganic chemicals
Harmonized System classification guide · last updated 2026-10-14
HS Chapter
Chapter number
Section
Section name
Typical duty
By subheading & market
HS headings
4-digit headings
What Chapter 28 covers
Inorganic compounds: halogens, sulphides, oxides, hydroxides, salts, rare-earth metals.
Common HS headings in Chapter 28
- 2801 Fluorine, chlorine
- 2811 Inorganic acids
- 2827 Chlorides
Classification notes
Chemical composition and whether element or compound determines the heading.
Frequently asked questions about HS Chapter 28
What Chapter 28 covers
Inorganic compounds: halogens, sulphides, oxides, hydroxides, salts, rare-earth metals.
Which products are classified under HS Chapter 28?
Common HS headings in Chapter 28 include: 2801 Fluorine, chlorine; 2811 Inorganic acids; 2827 Chlorides.
How do I find the import duty for HS Chapter 28 goods?
Determine the precise 6-digit HS subheading for your product, then check the MFN rate and any preferential rate for your destination market (e.g., China, the United States, the EU). 169e’s country tariff pages list rates per HS chapter.
What should I watch for when classifying HS Chapter 28 products?
Chemical composition and whether element or compound determines the heading.