Analysis
HTS 2931.90.90 covers other: other under heading 2931 (other organo-inorganic compounds). US Customs collects import statistics for it under 8 ten-digit suffixes, reported in kilograms.
This line's footnotes point to 2 additional provisions in Chapter 99: 9903.88.04 (Section 301 duties on products of China, the duty provided in the applicable subheading + 25%); 9903.90.08 (measures on products of Russia). Chapter 99 duties are added on top of the general rate for goods of the countries they name, and they change more often than the rest of the schedule, so check the current CBP guidance before you rely on a total.
Rates on the nearby lines range from duty-free to 6.5%. The costliest confusion would be with 2931.90.70 (n,N'-Bis(trimethylsilyl) urea…) at duty-free, a difference of 3.7 points on the customs value.
The general duty rate is 3.7% of the customs value, which is in the middle of the rates in chapter 29 (34th percentile of 1050 lines with an ad valorem rate). On a shipment valued at $10,000 that is $370 in duty before any Chapter 99 additions or preference claims.
Goods that qualify under GSP, the Australia FTA, the Bahrain FTA, the Chile FTA, the Colombia TPA, and 13 others can enter duty-free instead of paying 3.7%. It is also eligible under GSP, the developing-country programme, which Congress has to renew; check whether GSP is in force on the entry date.
The ten-digit suffixes separate organo-silicon compounds, dibutyltin oxide, tetrabutyltin, 2-Chlorovinyldichloroarsine, bis(2-chlorovinyl)chloroarsine and tris(2-chlorovinyl)arsine. The duty is the same across them; the suffix matters for statistics, licensing and some quotas, and an entry needs all ten digits.
Statistical suffixes
| Code | Description | Units | NAICS |
|---|---|---|---|
| 2931.90.90.10 | Organo-silicon compounds | kg | 325199 |
| 2931.90.90.21 | Dibutyltin oxide | kg | 325199 |
| 2931.90.90.25 | Tetrabutyltin | kg | 325199 |
| 2931.90.90.29 | Other | kg | 325199 |
| 2931.90.90.30 | 2-Chlorovinyldichloroarsine | kg | |
| 2931.90.90.35 | Bis(2-chlorovinyl)chloroarsine | kg | |
| 2931.90.90.40 | Tris(2-chlorovinyl)arsine | kg | |
| 2931.90.90.52 | Other | kg |
Neighbouring 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 |
Chapter 99 provisions in the footnotes
- 9903.88.04 Section 301 duties on products of China · The duty provided in the applicable subheading + 25%
Except as provided in headings 9903.88.33, 9903.88.34, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, or 9903.88.69, articles the product of China,
- 9903.90.08 measures on products of Russia
Articles the product of the Russian Federation, as provided for in U.S. note 30(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 30(b) to this subchapter