HS Code 7903
Zinc Dust, Powders, and Flakes
HS code 7903 covers zinc dust, powders, and flakes used for industrial protective coatings and chemical processing in the metallurgical sector.
HS Code 7903 — Zinc Dust, Powders, and Flakes
This code covers zinc in finely divided forms, including dust, powders, and flakes. These materials are primarily used in the manufacture of anti-corrosion paints, chemical catalysts, and in metallurgical processes such as gold extraction.
What's included
- Zinc dust (blue powder)
- Atomised zinc powder
- Zinc flakes
- Spherical zinc powders
What's excluded
- Zinc oxide → use
2817(Chemical compounds are classified under inorganic chemicals.) - Pigments based on zinc dust → use
3206(Prepared pigments for the paint industry are classified in Chapter 32.)
Common examples
- Ultra-fine zinc dust for primers
- Lamellar zinc flakes for coating
- Distilled zinc dust
- Metallic zinc powder for gold recovery
Frequently asked questions
What is the difference between zinc dust and zinc powder?
Zinc dust is typically obtained by condensation of zinc vapour, resulting in finer particles than standard powders produced by atomisation.
Trade & shipping notes
- Typical duty range: 0% - 5%
- Documentation: Requires a Certificate of Analysis (CoA) to verify particle size and purity.
- Typical shipping mode: FCL
- Top exporters: Republic of Korea, Belgium, Malaysia, China
- Top importers: United States, India, Germany, Vietnam
Related HS codes
Key takeaway
Classification depends on particle form; highly reactive and often treated as hazardous for ocean freight.
Related HS codes
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