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HSChapter 29
U.S. imports of perhalogenated acyclic hydrocarbon derivatives with fluorine and chlorine (cfcs and related) (HS 290377) totaled $316K in April 2026, traded with 2 countries.
Importers of Perhalogenated Acyclic Hydrocarbon Derivatives with Fluorine and Chlorine (CFCs and Related) paid $42K in duties in April 2026 — an effective duty rate of 13% on $316K in dutiable value, based on actual customs collections rather than the published tariff schedule. Perhalogenated Acyclic Hydrocarbon Derivatives with Fluorine and Chlorine (CFCs and Related) imports of $316K in April 2026 ran 18% below the year-to-date monthly average of $386K.
Last updated: April 2026 dataTrichlorofluoromethane (CFC-11, line 2903770010) and trichlorotrifluoroethanes (CFC-113, line 2903770020) are fully halogenated chlorofluorocarbons whose import is tightly controlled under EPA's Montreal Protocol allowance program; remaining permitted imports are largely for feedstock or laboratory use. The residual NESOI line (2903770080) captures other perhalogenated fluorine-and-chlorine compounds used as specialty solvents and chemical intermediates. China is the leading US supplier across this heading, followed by South Korea, Taiwan, Japan, and Canada — a concentration that raises supply-chain scrutiny given ongoing Section 301 considerations for Chinese chemical imports.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Imports of CFC-11 originating from China may be subject to Section 301 tariffs, which apply on top of the standard column 1 duty rate. Importers should verify the current Section 301 status for the applicable HTS line and factor that cost into landed-price calculations alongside EPA allowance requirements.
The specific lines (2903770010 for CFC-11 and 2903770020 for trichlorotrifluoroethanes) apply only to those named compounds. Any other perhalogenated acyclic derivative containing only fluorine and chlorine that does not match those descriptions falls to the NESOI line 2903770080. Misclassification between these lines can affect duty rates and EPA reporting obligations, so chemical identity verification is essential.
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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 |
|---|---|---|---|---|
| 2903770080 | DERIV PERHALOGEN ONLY W/ FLUORINE & CHLORINE NESOI | $316K | 13.30% | $42K |
| 2903770020 | TRICHLOROTRIFLUOROETHANES | $0 | -- | -- |
DERIV PERHALOGEN ONLY W/ FLUORINE & CHLORINE NESOI
TRICHLOROTRIFLUOROETHANES
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2903770080 | DERIV PERHALOGEN ONLY W/ FLUORINE & CHLORINE NESOI | $430K |
| 2903770010 | TRICHLOROFLUOROMETHANE (CFC-11) | $0 |
DERIV PERHALOGEN ONLY W/ FLUORINE & CHLORINE NESOI
37.1K kg
TRICHLOROFLUOROMETHANE (CFC-11)
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 |
|---|---|---|---|
| South Carolina | $303K | -- | -$303K |
| Louisiana | -- | $294K | +$294K |
| Texas | -- | $113K | +$113K |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| CHARLESTON, SC | $303K | -- | -$303K |
| NEW ORLEANS, LA | -- | $294K | +$294K |
| HOUSTON, TX | -- | $113K | +$113K |