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HSChapter 29
U.S. imports of halogenated organophosphorus derivatives (nes) (HS 293159) totaled $272K in April 2026, traded with 9 countries.
Importers of Halogenated Organophosphorus Derivatives (NES) paid $37K in duties in April 2026 — an effective duty rate of 14% on $272K in dutiable value, based on actual customs collections rather than the published tariff schedule. Halogenated Organophosphorus Derivatives (NES) imports of $272K in April 2026 ran 21% above the year-to-date monthly average of $225K.
Last updated: April 2026 dataChina leads US imports of halogenated organophosphorus derivatives not elsewhere specified, with Canada, the United Kingdom, Poland, and Switzerland also among the top suppliers. The US schedule subdivides this heading into O-alkyl phosphonofluoridates (2931590010), alkyl phosphonyl difluorides (2931590015), compounds where a methyl/ethyl/propyl group is directly bonded to phosphorus (2931590060), and a residual NESOI line (2931590080). Phosphonofluoridates and phosphonyl difluorides are CWC Schedule 1 and Schedule 2 precursors respectively, subjecting those lines to the most stringent import controls of any organophosphorus subheading.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
These compound classes are listed on CWC Schedule 1 and Schedule 2 respectively because they are direct precursors to nerve agents. Importers must comply with Commerce Department licensing requirements under the Export Administration Regulations (EAR) and may face additional CBP scrutiny at entry, regardless of the declared end use.
Line 2931590060 captures halogenated compounds where a methyl, ethyl, or propyl carbon is bonded directly to the phosphorus atom — a structural test that mirrors the CWC's definition of key precursor classes. Compounds where the alkyl group is attached via oxygen or sulfur rather than directly to phosphorus fall instead into the residual NESOI line (2931590080), making the bonding mode the decisive classification factor.
| Country | Imports | Exports | Balance |
|---|---|---|---|
| CHINA | $268K | $6K | -$262K |
| UNITED KINGDOM | -- | $39K | +$39K |
| CANADA | -- | $15K | +$15K |
| BRAZIL | -- | $7K | +$7K |
| GERMANY | -- | $6K | +$6K |
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Monthly import values over time
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 2931590080 | HALOGENATED ORGANO-PHOSPHOROUS DERIVATIVES, NESOI | $196K | 13.70% | $27K |
| 2931590060 | CONT PHSPHRS ATOM,ONE METH/ETH/PRP GRP IS BNDED | $76K | 13.70% | $10K |
HALOGENATED ORGANO-PHOSPHOROUS DERIVATIVES, NESOI
CONT PHSPHRS ATOM,ONE METH/ETH/PRP GRP IS BNDED
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2931590080 | HALOGENATED ORGANO-PHOSPHOROUS DERIVATIVES, NESOI | $72K |
| 2931590010 | O-ALKYL, ALKYL, PHOSPHONOFLUORIDATES | $0 |
| 2931590060 | CONT PHSPHRS ATOM,ONE METH/ETH/PRP GRP IS BNDED | $0 |
HALOGENATED ORGANO-PHOSPHOROUS DERIVATIVES, NESOI
9.5K kg
O-ALKYL, ALKYL, PHOSPHONOFLUORIDATES
CONT PHSPHRS ATOM,ONE METH/ETH/PRP GRP IS BNDED
NUCLEIC ACIDS & SALTS; OTHER HETEROCYCLIC CMP, NES
HS 293499
HETEROCYCLIC COMP W NITROGEN HETERO-ATM ONLY NESOI
HS 293399
POLYPEPTIDE PROTEIN& GLYCOPROTEIN HORMONES &DERIV
HS 293719
CMPDS CONT AN UNFUSED PYRIDINE RING ETC NESOI
HS 293339
COMP WITH PYRIMIDINE OR PIPERAZINE RING, NESOI
HS 293359
ANTIBIOTICS, NESOI
HS 294190
| State | Imports | Exports | Balance |
|---|---|---|---|
| Alabama | $124K | -- | -$124K |
| New Jersey | $79K | -- | -$79K |
| Wisconsin | -- | $50K | +$50K |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| MOBILE, AL | $124K | -- | -$124K |
| NEWARK, NJ | $97K | -- | -$97K |
| HOUSTON, TX | $47K | -- | -$47K |