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HSChapter 29
U.S. exports of pentachlorobenzene (HS 290393) totaled $75K in December 2024, traded with 2 countries.
Pentachlorobenzene, classified under its ISO name at the six-digit level and covered by a single US tariff line (2903930000), is another Stockholm Convention Annex A substance whose commercial production and trade are subject to elimination obligations. It historically appeared as an industrial solvent and chemical intermediate but is now primarily encountered as an unintentional byproduct or trace contaminant in other chemical processes. Importers should expect EPA TSCA scrutiny and should verify that any shipment qualifies under a recognized exemption before filing entry.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
The distinction is the number of chlorine substituents on the benzene ring: pentachlorobenzene has five chlorine atoms and classifies under 2903930000, while hexachlorobenzene has six and classifies under 2903920000. Both are Stockholm Convention-listed POPs, but they are separate chemical entities with different CAS numbers, so the supplier's certificate of analysis confirming the exact compound is essential for correct classification.
Legitimate commercial applications are extremely limited given international restrictions. Residual trade is largely confined to analytical reference standards, research quantities, or use as a process chemical where no viable substitute exists and a specific regulatory exemption applies. Any importer should obtain EPA guidance under TSCA before proceeding.
Monthly import values over time
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HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2903930000 | HALGNATED DRVTVS ARMTC HYDRCRBS,PENTACHLOROBENZENE | $77K |
NUCLEIC ACIDS & SALTS; OTHER HETEROCYCLIC CMP, NES
HS 293499
POLYPEPTIDE PROTEIN& GLYCOPROTEIN HORMONES &DERIV
HS 293719
CMPDS CONT AN UNFUSED PYRIDINE RING ETC NESOI
HS 293339
BENZENE
HS 290220
HETEROCYCLIC COMP W NITROGEN HETERO-ATM ONLY NESOI
HS 293399
HETEROCYCLIC COMP WITH UNFUSED PYRAZOLE RING NESOI
HS 293319
| State | Imports | Exports | Balance |
|---|---|---|---|
| Unidentified | -- | $47K | +$47K |
| Ohio | -- | $31K | +$31K |
| Illinois | -- | -- | -- |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| LOW VALUE | -- | $47K | +$47K |
| PORT HURON, MI | -- | $16K | +$16K |
| BLAINE, WA | -- | $14K | +$14K |