Analysis
Subheading 2931.90 covers other, within heading 2931. The first six digits are shared by every country that uses the Harmonized System, so this part of the code is the same in the US, UK and EU schedules; the 9 US tariff lines below it are national.
The spread of 6.5 percentage points between the cheapest and dearest lines makes misclassification expensive here. The highest rate, 6.5%, applies to 2931.90.10 (4,4'-Diphenylbisphosphonous acid…) and 2931.90.22 (other: drugs).
2 of its 9 lines with a percentage rate are duty-free at the general rate (22%) and 7 are dutiable, from duty-free up to 6.5%. The median line pays 6.5%.
Its 9 lines start with 2931.90.05 (diphenyldichlorosilane; and phenyltrichlorosilane), 2931.90.10 (4,4'-Diphenylbisphosphonous acid…), 2931.90.15 (sodium tetraphenylboron) and 2931.90.22 (other: drugs); the full list is in the table below.
By Census's concordance, most of its statistical lines are made by All Other Basic Organic Chemical Manufacturing (325199) and Pharmaceutical Preparation Manufacturing (325412). Those are the NAICS industries a US producer of these goods would report under.
Tariff lines
| Line | Description | General rate |
|---|---|---|
| 2931.90.05 | Diphenyldichlorosilane; and phenyltrichlorosilane | Free |
| 2931.90.10 | 4,4'-Diphenylbisphosphonous acid, di(2',2",4',4"-di-tert-butyl)phenyl ester | 6.5% |
| 2931.90.15 | Sodium tetraphenylboron | 5.8% |
| 2931.90.22 | Other: drugs | 6.5% |
| 2931.90.26 | Other: pesticides | 6.5% |
| 2931.90.30 | Products described in additional U.S. note 3 to section VI | 6.5% |
| 2931.90.60 | Other: other | 6.5% |
| 2931.90.70 | N,N'-Bis(trimethylsilyl) urea; 3-(Hydroxymethylphosphinyl)-1-propanoic acid, 2-hydroxyethyl ester; and 2-Phosphonobutane-1,2,4-tricarboxylic acid and its salts | Free |
| 2931.90.90 | Other: other | 3.7% |