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HSChapter 29
U.S. imports of perhalogenated acyclic hydrocarbon derivatives with fluorine and chlorine (cfcs and related) (HS 290377) totaled $464K in July 2026, traded with 2 countries.
Importers of Perhalogenated Acyclic Hydrocarbon Derivatives with Fluorine and Chlorine (CFCs and Related) paid $36K in duties in July 2026 — an effective duty rate of 7.9% on $457K 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 $464K in July 2026 ran 41% above the year-to-date monthly average of $329K.
Last updated: July 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.
4 shipments/mo
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.
Subheading 18 of 41 in heading 2903
Subheading 290377 · $464K of $60.3M
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HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 2903770080 | Deriv Perhalogen Only W/ Fluorine & Chlorine NESOI | $464K | 7.80% | 98.62% | $36K |
| 2903770020 | Trichlorotrifluoroethanes | $0 | -- | -- | -- |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2903770080 | Deriv Perhalogen Only W/ Fluorine & Chlorine NESOI | $170K |
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
ImportsExports
Imports
$464KYoY · Pro
Exports
$170KYoY · Pro
12-mo low · imports
YoY · ProFewer than 6 of the last 12 months reported trade above $500K; the trend chart is not shown for thin series.
Through July 2026. Source: U.S. Census Bureau.
Imports · July 2026
origin
China and Japan together supply 100% of it.
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destination
entry
rate provision · imports
1.4% enters free of duty; the effective duty rate is 7.80%.