SITCSection 5
U.S. imports of unsaturated chlorinated derivatives of acyclic hydrocarbons, n.e.s. (SITC 51134) totaled $7.2M in July 2026, traded with 13 countries.
Importers of Unsaturated Chlorinated Derivatives of Acyclic Hydrocarbons, N.E.S. paid $708K in duties in July 2026 — an effective duty rate of 10% on $7.1M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: July 2026 dataUnsaturated chlorinated acyclic derivatives not elsewhere specified form a residual grouping that captures specialty chlorinated monomers, intermediates, and reagents whose carbon chain contains at least one double or triple bond. Vinyl chloride monomer (VCM), for example, falls within the broader unsaturated chlorinated family, though major commodity volumes are typically classified at more specific headings. Importers classifying under this residual code should confirm that no more specific SITC or HTS provision applies, as misclassification between saturated and unsaturated series can trigger duty discrepancies.
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47 shipments/mo
Basic heading 278 of 465 in section 5
Basic heading 51134 · $7.2M of $28.9B
The key structural criterion is the presence of a carbon-carbon double or triple bond in the acyclic chain. Compounds with only single carbon-carbon bonds are classified under the saturated residual (SITC 51136), while those retaining unsaturation fall here. Laboratory analysis or a supplier's certificate of analysis confirming molecular structure is typically required to support the classification.
All chemical substances imported into the US must comply with TSCA. For residual 'N.E.S.' categories, importers should verify that each specific substance is listed on the TSCA Chemical Substance Inventory and file the appropriate TSCA import certification at entry. Substances not on the Inventory may require a pre-manufacture notice or exemption before import.
Supplier Network
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Imports · July 2026
origin
Czech Republic and Hong Kong together supply 67% of it.
customs district
Census does not publish district detail for this classification system.
destination
Census does not publish state detail for this classification system.
entry
Census does not publish port detail for this classification system.
ImportsExports
Imports
$7.2MYoY · Pro
Exports
$1.5MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.