U.S. imports of Unsaturated Chlorinated Derivatives of Acyclic Hydrocarbons (Other) (HS 290329) totaled $12.9M in September 2026, imported from 14 countries.
Importers of Unsaturated Chlorinated Derivatives of Acyclic Hydrocarbons (Other) paid $1.0M in duties in September 2026, an average duty rate of 8.08% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Unsaturated Chlorinated Derivatives of Acyclic Hydrocarbons (Other) imports of $12.9M in September 2026 ran 83% above the year-to-date monthly average of $7.1M.
Last updated: September 2026 dataThe Czech Republic leads US imports of other unsaturated chlorinated acyclic hydrocarbon derivatives, ahead of China and Germany, under the single 10-digit line 2903290000. Compounds in this residual category serve as chemical intermediates in the synthesis of agrochemicals, pharmaceuticals, and specialty polymers, where the carbon-carbon double bond is a key reactive site. Because this is a catch-all NESOI line, precise chemical identity documentation — including CAS numbers and structural formulas — is essential to confirm correct classification and distinguish these compounds from named headings such as vinyl chloride (290321) or trichloroethylene (290322).
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38 import shipments a month
Classification follows the GRI specificity rule: named compounds such as vinyl chloride (290321) and trichloroethylene (290322) take precedence over the NESOI residual heading 290329. If the imported compound is not expressly named in a more specific heading, and it is an unsaturated chlorinated acyclic hydrocarbon, it falls under 290329. A licensed customs broker or CBP binding ruling can confirm classification for novel or ambiguous structures.
Primary end-use sectors include agrochemical synthesis (as halogenated building blocks), specialty polymer production, and pharmaceutical intermediate manufacturing. The reactive double bond makes these compounds valuable for further chemical transformation rather than direct end-use application.
Subheading 9 of 41 in heading 2903
Subheading 290329 · $12.9M of $50.6M
Trade Directory
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HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Imports for consumption | Average duty rate | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 2903290000 | Other Unsat Chlorinted Deriv of Acylc Hydrocarbons | $1.9M | 30.29% | 96.55% | $571K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2903290000 | Other Unsat Chlorinted Deriv of Acylc Hydrocarbons | $2.6M |
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
$12.9MYoY · free account
Exports
—YoY · free account
12-mo low · imports
Low · free accountOver the twelve months to September 2026, the U.S. imported $76.8M of Unsaturated Chlorinated Derivatives of Acyclic Hydrocarbons (Other).
Through September 2026 · exports 11 of 12 months reported. Source: U.S. Census Bureau.
Imports · September 2026
origin
Czech Republic and China together supply 94% of it. China pays 43.0% duty; Czech Republic <0.1%.
customs district
destination
entry
rate provision · imports
duty collected equals 8.08% of imports for consumption.