Analysis
Heading 7903 of the Harmonized Tariff Schedule covers zinc dust, powders and flakes. It divides into 2 six-digit subheadings and 3 eight-digit tariff lines, with 3 ten-digit statistical suffixes below them.
None of its 3 lines is duty-free at the general rate. Rates run from 3% to 3% with a median of 3%, so the line you choose sets the duty.
2 of the lines carry specific or compound rates (per kilogram, per dozen and so on) rather than a percentage, so their burden depends on the unit value of the goods.
The largest subheadings are 7903.90 (other, 2 lines) and 7903.10 (unnamed, 1 line).
Its median rate of 3% sits at the 64th percentile of the headings in chapter 79.
By Census's concordance, most of its statistical lines are made by Secondary Smelting, Refining, and Alloying of Nonferrous Metal (except Copper and Aluminum) (331492) and Nonferrous Metal (except Aluminum) Smelting and Refining (331410). Those are the NAICS industries a US producer of these goods would report under.
Tariff lines
| Line | Description | General rate |
|---|---|---|
| 7903.10.00 | Zinc dust, powders and flakes: zinc dust | 0.7¢/kg |
| 7903.90.30 | Other: powders | 0.5¢/kg |
| 7903.90.60 | Other: other | 3% |