Analysis
HTS 2849.20.10 covers of silicon: crude under heading 2849 (carbides, whether or not chemically defined).
Within this group the rate runs from 0.5% to 5.5%. Compared with 2849.90.30 (other: of tungsten), which pays 5.5%, a misclassification either way moves the duty by 5.5 percentage points.
The normal trade relations rate here is zero, shared by about 29% of the 274 tariff lines in chapter 28, a useful check when a neighbouring dutiable line is a candidate. Chapter 99 measures such as Section 301 or 232 can still apply on top, depending on where the goods come from.
Census statistics map these goods to NAICS 327910 (Abrasive Product Manufacturing), an industry of 264 US establishments employing 10,976 people. That concordance is how imports of this line are compared with US output.
Every edition we compared, from Jan 2023 to Oct 2026 (Rev. 22), shows the same general rate of Free.
Neighbouring lines
| Line | Description | General rate |
|---|---|---|
| 2849.10.00 | Carbides, whether or not chemically defined: of calcium | 1.8% |
| 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% |