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SITCSection 3
U.S. exports of liquefied gaseous hydrocarbons, not elsewhere specified (SITC 34420) totaled $20.5M in July 2026.
Importers of Liquefied Gaseous Hydrocarbons, Not Elsewhere Specified paid $6K in duties in July 2026 — an effective duty rate of 10% on $57K in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: July 2026 dataServing as a residual classification for liquefied hydrocarbon gases not captured by more specific SITC headings, this category encompasses specialty gases and mixed streams such as liquefied refinery gas (LRG), mixed C4 streams, and other hydrocarbon blends that do not meet the pure-component definitions of propane, butane, or the named olefins. Correct classification requires careful analysis of the product's composition, as customs authorities may challenge the use of an NES heading if a more specific heading applies. Importers of mixed hydrocarbon streams should retain detailed compositional analysis (GC chromatography reports) to support classification decisions.
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50 shipments/mo
Basic heading 21 of 32 in section 3
Basic heading 34420 · $1.9M of $19.0B
Gas chromatography (GC) compositional analysis reports are the primary supporting document, showing the percentage breakdown of each component in the stream. Importers should also retain the product's safety data sheet (SDS), the supplier's product specification sheet, and any relevant refinery or processing records that explain why the mixture does not qualify under a more specific heading. Customs authorities may request these documents during a post-entry audit or CF-28 inquiry.
Mixed C4 raffinate streams from steam crackers (after butadiene extraction), liquefied refinery gas blends containing varying proportions of propane, butane, and pentanes, and specialty hydrocarbon mixtures used as aerosol propellants or refrigerant blends are typical examples. The NES designation applies when the mixture's composition prevents classification under a single named-component heading, making compositional documentation essential for both classification and valuation purposes.
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Exports · July 2026
destination
Mexico and Canada together take 98% of it.
customs district
Census does not publish district detail for this classification system.
origin
Census does not publish state detail for this classification system.
entry
Census does not publish port detail for this classification system.
ImportsExports
Imports
$1.9MYoY · Pro
Exports
$20.5MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.