HS code 7903.90: Zinc dust, powders and flakes
Last updated
Key facts
- HS code
- 7903.90
- Covers
- Zinc dust, powders and flakes
- Edition
- HS2022
- Duty in the United States
- See its 2 lines
Summary
HS code 7903.90 covers zinc dust, powders and flakes, other than those classified in 7903.10. It sits in heading 79.03 (zinc dust, powders and flakes) in chapter 79 (zinc and articles thereof). Other goods of heading 79.03 are classified under 7903.10 (zinc dust). National tariff lines under 7903.90 are live on border.bot for the United States (2 lines, also used by 1 other country).
What this code covers
HS code 7903.90 covers zinc dust, powders and flakes, other than those classified in 7903.10.
The legal text of the subheading is “Other”, in HS2022.
What it doesn’t cover
Other goods of heading 79.03 are classified under 7903.10 (zinc dust).
- 7903.10Zinc dust
How it is structured
7903.90 is a six-digit subheading. Its first two digits, 79, are the chapter; the first four, 7903, are heading 79.03; the last two, 90, identify the subheading within the heading.
Countries add their own digits after these six for their national tariff lines.
- Chapter 79
- Zinc and articles thereof
- Heading 79.03
- Zinc dust, powders and flakes
- Subheading 7903.90
- Other
In other countries
National tariff lines under 7903.90 are live on border.bot for the United States (2 lines, also used by 1 other country).
- United States2 lines, used by 1 other country
Frequently asked questions
What does HS code 7903.90 cover?
HS code 7903.90 covers zinc dust, powders and flakes, other than those classified in 7903.10.
Which heading and chapter is HS code 7903.90 in?
HS code 7903.90 is in heading 79.03 (zinc dust, powders and flakes) in chapter 79 (zinc and articles thereof).
Where are goods of heading 79.03 classified when 7903.90 doesn’t fit?
Other goods of heading 79.03 are classified under 7903.10 (zinc dust).
Which countries’ tariffs list national lines under HS code 7903.90?
National tariff lines under 7903.90 are live on border.bot for the United States (2 lines, also used by 1 other country).
Sources and updates
The Harmonized System legal text comes from border.bot release 2 (edition HS 2022), imported from a file, and has been live since 11 October 2026.
This page was last updated on 11 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.