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U.S. exports of unsaturated acyclic hydrocarbons (other) (HS 290129) totaled $93.4M in July 2026.
Importers of Unsaturated Acyclic Hydrocarbons (Other) paid $926K in duties in July 2026 — an effective duty rate of 14% on $6.7M in dutiable value, based on actual customs collections rather than the published tariff schedule. Unsaturated Acyclic Hydrocarbons (Other) imports of $21.4M in July 2026 ran 11% above the year-to-date monthly average of $19.3M.
Last updated: July 2026 dataLinear alpha-olefins (LAOs) in the C6–C30 range derived from petroleum or shale are a commercially significant subset of this heading, classified under 2901291010, and are widely used as comonomers in polyethylene production and as inputs for detergent alcohols and lubricant additives. The heading also captures other petroleum-derived unsaturated acyclic hydrocarbons (2901291050) and those from non-petroleum sources (2901295000 and 2901296000). Canada leads US imports under this heading, with South Africa, Brazil, Japan, and Ireland also supplying the market. The petroleum versus non-petroleum origin distinction is a key classification driver at the 10-digit level.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
240 shipments/mo
CBP expects importers to demonstrate that the product is derived from petroleum, shale, or similar sources to qualify for the petroleum-origin lines. A manufacturer's affidavit or process description confirming the feedstock origin, along with a product specification sheet, is typically required. Without this documentation, the product may default to the non-petroleum line (2901295000 or 2901296000), which can carry a different duty treatment.
Only petroleum-derived LAOs in the C6–C30 carbon chain range qualify for line 2901291010. Petroleum-derived unsaturated acyclic hydrocarbons outside that chain-length window fall under 2901291050. Products from non-petroleum sources are classified under 2901295000 or 2901296000 regardless of chain length. Importers should confirm the carbon number distribution from the supplier's CoA before filing entry.
HSChapter 29
Subheading 2 of 6 in heading 2901
Subheading 290129 · $21.4M of $110.9M
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ImportsExports
Imports
$21.4MYoY · Pro
Exports
$93.4MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
Exports · July 2026
destination
customs district
origin
entry
rate provision · imports
74.1% enters free of duty; the effective duty rate is 4.32%.
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 |
|---|---|---|---|---|---|
| 2901291010 | Unsat Lin A Olfns (C6-C30)Unmxed Fr Petro,Shal Etc | $18.7M | 2.17% | 22.87% | $406K |
| 2901295000 | Other Unsat Acylc Hydrcbns(Exc Fr Petrol,Shal Etc) | $2.3M | 19.68% | 96.46% | $444K |
| 2901291050 | Other Unsat Acylc Hydrcbns (Exc C6-C30) Fr PET Etc | $468K | 16.26% | 46.47% | $76K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2901291010 | Unsat Lin A Olfns (C6-C30)Unmxed Fr Petro,Shal Etc | $81.7M |
| 2901296000 | Unsaturated Acyclic Hydrocarbons, NESOI | $11.8M |
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.