Key facts
- HS code
- 2819.10
- Covers
- Chromium trioxide
- Edition
- HS2022
- Duty rates
- Set by each country’s tariff
Summary
HS code 2819.10 covers chromium trioxide. It sits in heading 28.19 (chromium oxides and hydroxides) in chapter 28 (inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes). Other goods of heading 28.19 are classified under 2819.90 (other).
What this code covers
HS code 2819.10 covers chromium trioxide.
The legal text of the subheading is “Chromium trioxide”, in HS2022.
How it is structured
2819.10 is a six-digit subheading. Its first two digits, 28, are the chapter; the first four, 2819, are heading 28.19; the last two, 10, identify the subheading within the heading.
Countries add their own digits after these six for their national tariff lines.
- Heading 28.19
- Chromium oxides and hydroxides
- Subheading 2819.10
- Chromium trioxide
In other countries
No national tariff lines under 2819.10 are live on border.bot yet. Tariffs built on the Harmonized System (HS2022) use 2819.10 at six digits and add their own digits after it.
Frequently asked questions
What does HS code 2819.10 cover?
HS code 2819.10 covers chromium trioxide.
Which heading and chapter is HS code 2819.10 in?
HS code 2819.10 is in heading 28.19 (chromium oxides and hydroxides) in chapter 28 (inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes).
Where are goods of heading 28.19 classified when 2819.10 doesn’t fit?
Other goods of heading 28.19 are classified under 2819.90 (other).
Sources and updates
The Harmonized System legal text comes from border.bot release 1 (edition HS 2022), imported from a file, and has been live since 13 October 2026.
This page was last updated on 13 October 2026.
Guidance from published tariff data, not a binding ruling. For a decision customs must follow, apply to the destination’s customs authority for a binding tariff ruling.