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HSChapter 29
U.S. imports of other perhalogenated acyclic hydrocarbon derivatives (two or more halogens) (HS 290378) totaled $513K in April 2026, traded with 2 countries.
Importers of Other Perhalogenated Acyclic Hydrocarbon Derivatives (Two or More Halogens) paid $9K in duties in April 2026 — an effective duty rate of 3.7% on $245K in dutiable value, based on actual customs collections rather than the published tariff schedule. Other Perhalogenated Acyclic Hydrocarbon Derivatives (Two or More Halogens) imports of $513K in April 2026 ran 53% above the year-to-date monthly average of $335K.
Last updated: April 2026 dataCovering perhalogenated acyclic hydrocarbons containing two or more different halogens beyond the named CFC and HCFC subheadings, this single-line heading (2903780000) captures specialty fluorinated and brominated compounds used as chemical intermediates, electronic-grade solvents, and precursors in pharmaceutical synthesis. Japan leads US imports under this heading, with China, Israel, Russia, and India also supplying material — a diverse origin mix that reflects the specialty-chemical nature of these compounds and the varied global production base.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Headings 290373–290377 cover specific, named chlorofluorocarbon and hydrochlorofluorocarbon compounds subject to Montreal Protocol controls. Heading 290378 is a residual category for perhalogenated acyclic compounds containing two or more different halogens that do not fit those named descriptions — many of which are not ozone-depleting substances and therefore not subject to EPA allowance requirements, though individual compounds may still face other regulatory controls.
Classification hinges on the precise molecular structure: the number and identity of halogens present, whether the compound is fully or partially halogenated, and whether it matches any named compound in the earlier specific subheadings. A binding ruling request to CBP, supported by a certificate of analysis and structural data, is the most reliable way to confirm classification before the first shipment.
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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 |
|---|---|---|---|---|
| 2903780000 | OTHER PERHALOGENATED DERIVATIVES | $513K | 3.70% | $9K |
OTHER PERHALOGENATED DERIVATIVES
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2903780000 | OTHER PERHALOGENATED DERIVATIVES | $674K |
OTHER PERHALOGENATED DERIVATIVES
22.2K 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
| State | Imports | Exports | Balance |
|---|---|---|---|
| California | $513K | $255K | -$258K |
| South Carolina | -- | $419K | +$419K |
| Florida | -- | -- | -- |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| CHARLESTON, SC | -- | $292K | +$292K |
| LONG BEACH, CA | $268K | -- | -$268K |
| EAGLE PASS, TX | -- | $255K | +$255K |