Analysis
Heading 7603 of the Harmonized Tariff Schedule covers aluminum powders and flakes. It divides into 2 six-digit subheadings and 2 eight-digit tariff lines, with 2 ten-digit statistical suffixes below them.
None of its 2 lines is duty-free at the general rate. Rates run from 3.9% to 5% with a median of 4.45%, so the line you choose sets the duty.
The largest subheadings are 7603.10 (unnamed, 1 line) and 7603.20 (unnamed, 1 line).
By Census's concordance, most of its statistical lines are made by Secondary Smelting and Alloying of Aluminum (331314). Those are the NAICS industries a US producer of these goods would report under.
Its median rate of 4.45% sits at the 60th percentile of the headings in chapter 76.
The heading text decides whether a product belongs here at all (General Rule of Interpretation 1); the subheadings and lines below it only apply once that is settled. Section and chapter notes can override the heading wording, so read them for borderline goods.
Tariff lines
| Line | Description | General rate |
|---|---|---|
| 7603.10.00 | Powders of non-lamellar structure | 5% |
| 7603.20.00 | Powders of lamellar structure; flakes | 3.9% |