Analysis
HTS 2931.20.00 covers tributyltin compounds under heading 2931 (other organo-inorganic compounds).
Neighbouring lines carry rates from duty-free to 6.5%, so the exact line matters. The widest gap is with 2931.90.70 (n,N'-Bis(trimethylsilyl) urea…), at duty-free: a product that belongs there but is entered here, or the reverse, changes the duty by 3.7 percentage points.
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 12 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 column 2 rate, for countries without normal trade relations, is 25%, 6.8 times the general rate.
Neighbouring lines
| Line | Description | General rate |
|---|---|---|
| 2931.10.00 | Tetramethyl lead and tetraethyl lead | 3.7% |
| 2931.41.00 | Dimethyl methylphosphonate | 3.7% |
| 2931.42.00 | Dimethyl propylphosphonate | 3.7% |
| 2931.43.00 | Diethyl ethylphosphonate | 3.7% |
| 2931.44.00 | Methylphosphonic acid | 3.7% |
| 2931.45.00 | Salt of methylphosphonic acid and (aminoiminomethyl)urea (1:1) | 3.7% |
| 2931.46.00 | 2,4,6-Tripropyl-1,3,5,2,4,6-trioxatriphosphinane 2,4,6-trioxide | 3.7% |
| 2931.47.00 | (5-Ethyl-2-methyl-2-oxido-1,3,2-dioxaphosphinan-5-yl) methyl methyl methylphosphonate | 3.7% |
| 2931.48.00 | 3,9-Dimethyl-2,4,8,10-tetraoxa-3,9-diphosphaspiro [5.5] undecane 3,9-dioxide | 3.7% |
| 2931.49.00 | Non-halogenated organo-phosphorous derivatives: other | 3.7% |
| 2931.51.00 | Methylphosphonic dichloride | 3.7% |
| 2931.52.00 | Propylphosphonic dichloride | 3.7% |
| 2931.53.00 | O-(3-chloropropyl) O-[4-nitro-3-(trifluoromethyl)phenyl] methylphosphonothionate | 3.7% |
| 2931.54.00 | Halogenated organo-phosphorous derivatives: trichlorfon (ISO) | 3.7% |
| 2931.59.00 | Halogenated organo-phosphorous derivatives: other | 3.7% |
| 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% |