Analysis
HTS 2931.49.00 covers non-halogenated organo-phosphorous derivatives: 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 one additional provision in Chapter 99: 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.
Within this group the rate runs from duty-free to 6.5%. Compared with 2931.90.70 (n,N'-Bis(trimethylsilyl) urea…), which pays duty-free, a misclassification either way moves 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 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 o-Alkyl, [O-2-(Dialkyl, 2-Amino-4-[hydroxy(methyl)phosphonoyl]…, butyl methylphosphinate, n-(Phosphonomethyl) glycine and bis(1-methylpentyl) methylphosphonate and 1 more. 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 |
|---|---|---|---|
| 2931.49.00.05 | O-Alkyl (≤C10, including cycloalkyl) N,N-dialkyl (methyl, ethyl, n-propyl or isopropyl) phosphoramidocyanidates | kg | |
| 2931.49.00.08 | [O-2-(Dialkyl (methyl, ethyl, n-propyl or isopropyl) amino)ethyl] hydrogen alkyl (methyl, ethyl, n-propyl or isopropyl) phosphonites and their O-alkyl (≤C10, including cycloalkyl) esters; alkylated or protonated salts thereof | kg | |
| 2931.49.00.10 | 2-Amino-4-[hydroxy(methyl)phosphonoyl] butanoic acid (glufosinate) and its salts and esters | kg | |
| 2931.49.00.15 | Butyl methylphosphinate | kg | |
| 2931.49.00.20 | N-(Phosphonomethyl) glycine (glyphosate) and its salts and esters | kg | |
| 2931.49.00.25 | Bis(1-methylpentyl) methylphosphonate | kg | |
| 2931.49.00.55 | Containing a phosphorus atom to which one methyl, ethyl, n-propyl or isopropyl group is bonded but no further carbon atoms | kg | |
| 2931.49.00.80 | Other | kg |
Neighbouring lines
| Line | Description | General rate |
|---|---|---|
| 2931.10.00 | Tetramethyl lead and tetraethyl lead | 3.7% |
| 2931.20.00 | Tributyltin compounds | 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% |
| 2931.51.00 | 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% |
Chapter 99 provisions in the footnotes
- 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