Zinc; dust, powders and flakes
In plain English
This category includes zinc in various physical forms, specifically dust, powders, and flakes. The items are separated into two groups based on their specific shape. One group covers only zinc dust. The other group includes zinc powders and flakes.
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.
Chapter 79 classification notes
Chapter 79 dominated by Chinese / Australian / Peruvian zinc. Galvanising and die-casting are dominant uses.
Frequent misclassification in this chapter
Galvanised steel (Chapter 72) vs. zinc articles (79).
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