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HSChapter 29
U.S. imports of 1,2,3,4,5,6-hexachlorocyclohexane (including lindane) (HS 290381) totaled $4K in May 2026, traded with 1 country.
1,2,3,4,5,6-Hexachlorocyclohexane (Including Lindane) imports of $4K in May 2026 ran 400% above the year-to-date monthly average of $817.4.
Last updated: May 2026 dataHexachlorocyclohexane (HCH) and its gamma isomer lindane are persistent organochlorine pesticides subject to the Stockholm Convention on Persistent Organic Pollutants, which restricts their production and trade to narrow pharmaceutical exemptions (lindane is still permitted in certain pharmaceutical-grade lice treatments). All US imports enter under a single tariff line (2903810000), and India is the leading supplier. Importers should be aware that EPA and potentially FDA oversight applies depending on the intended end use, and the Stockholm Convention's prior informed consent procedures may be triggered for non-exempt applications.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Lindane's import and use are heavily restricted under the Stockholm Convention and US EPA regulations. The only currently recognized exemption for lindane in the US is as a second-line pharmaceutical treatment for head lice and scabies, subject to FDA oversight. Imports for agricultural or general pesticidal use are not permitted, and any shipment must clearly document the qualifying pharmaceutical end use.
Under the Stockholm Convention, parties exporting listed POPs — including HCH isomers — to non-party or restricted-use countries must follow prior informed consent (PIC) notification procedures. US importers receiving HCH from a Convention party for a non-exempt purpose may find the exporting country unwilling or legally unable to ship, making documentation of a qualifying exemption essential before contracting.
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Monthly import values over time
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2903810000 | 1,2,3,4,5,6-HEXACHLOROCYCLOHEXANE | $6K |
1,2,3,4,5,6-HEXACHLOROCYCLOHEXANE
640 kg
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
| Port | Imports | Exports | Balance |
|---|---|---|---|
| BROWNSVILLE, TX | -- | $6K | +$6K |
| CHICAGO, IL | -- | -- | -- |