Analysis
Heading 2849 of the Harmonized Tariff Schedule covers carbides, whether or not chemically defined. It divides into 3 six-digit subheadings and 7 eight-digit tariff lines, with 7 ten-digit statistical suffixes below them.
1 of its 7 lines with a percentage rate are duty-free at the general rate (14%) and 6 are dutiable, from duty-free up to 5.5%. The median line pays 3.7%.
The spread of 5.5 percentage points between the cheapest and dearest lines makes misclassification expensive here. The highest rate, 5.5%, applies to 2849.90.30 (other: of tungsten).
The largest subheadings are 2849.90 (other, 4 lines), 2849.20 (of silicon, 2 lines) and 2849.10 (unnamed, 1 line).
Its median rate of 3.7% sits at the 67th percentile of the headings in chapter 28.
By Census's concordance, most of its statistical lines are made by Abrasive Product Manufacturing (327910) and Other Basic Inorganic Chemical Manufacturing (325180). Those are the NAICS industries a US producer of these goods would report under.
Tariff lines
| Line | Description | General rate |
|---|---|---|
| 2849.10.00 | Carbides, whether or not chemically defined: of calcium | 1.8% |
| 2849.20.10 | Of silicon: crude | Free |
| 2849.20.20 | In grains, or ground, pulverized or refined | 0.5% |
| 2849.90.10 | Other: of boron | 3.7% |
| 2849.90.20 | Other: of chromium | 4.2% |
| 2849.90.30 | Other: of tungsten | 5.5% |
| 2849.90.50 | Other: other | 3.7% |