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HSChapter 29
U.S. imports of unsaturated acyclic hydrocarbons (other) (HS 290129) totaled $22.1M in April 2026, traded with 23 countries.
Importers of Unsaturated Acyclic Hydrocarbons (Other) paid $732K in duties in April 2026 — an effective duty rate of 11% on $6.8M in dutiable value, based on actual customs collections rather than the published tariff schedule. Unsaturated Acyclic Hydrocarbons (Other) imports of $22.1M in April 2026 ran 36% above the year-to-date monthly average of $16.3M.
Last updated: April 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.
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.
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Monthly import values over time
| Country | Imports | Exports | Balance |
|---|---|---|---|
| BELGIUM | -- | $37.7M | +$37.7M |
| CANADA | $16.1M | $16.4M | +$266K |
| KOREA, SOUTH | -- | $17.6M | +$17.6M |
| NETHERLANDS | -- | $14.3M | +$14.3M |
| ARGENTINA | -- | $8.6M | +$8.6M |
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 2901291010 | UNSAT LIN A OLFNS (C6-C30)UNMXED FR PETRO,SHAL ETC | $20.3M | 10.00% | $545K |
| 2901295000 | OTHER UNSAT ACYLC HYDRCBNS(EXC FR PETROL,SHAL ETC) | $1.1M | 10.15% | $105K |
| 2901291050 | OTHER UNSAT ACYLC HYDRCBNS (EXC C6-C30) FR PET ETC | $795K | 23.36% | $81K |
UNSAT LIN A OLFNS (C6-C30)UNMXED FR PETRO,SHAL ETC
OTHER UNSAT ACYLC HYDRCBNS(EXC FR PETROL,SHAL ETC)
OTHER UNSAT ACYLC HYDRCBNS (EXC C6-C30) FR PET ETC
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2901291010 | UNSAT LIN A OLFNS (C6-C30)UNMXED FR PETRO,SHAL ETC | $111.6M |
| 2901296000 | UNSATURATED ACYCLIC HYDROCARBONS, NESOI | $9.2M |
UNSAT LIN A OLFNS (C6-C30)UNMXED FR PETRO,SHAL ETC
75.0M kg
UNSATURATED ACYCLIC HYDROCARBONS, NESOI
3.8M kg
NUCLEIC ACIDS & SALTS; OTHER HETEROCYCLIC CMP, NES
HS 293499
HETEROCYCLIC COMP W NITROGEN HETERO-ATM ONLY NESOI
HS 293399
POLYPEPTIDE PROTEIN& GLYCOPROTEIN HORMONES &DERIV
HS 293719
CMPDS CONT AN UNFUSED PYRIDINE RING ETC NESOI
HS 293339
COMP WITH PYRIMIDINE OR PIPERAZINE RING, NESOI
HS 293359
ANTIBIOTICS, NESOI
HS 294190
| Port | Imports | Exports | Balance |
|---|---|---|---|
| HOUSTON, TX | $2.5M | $76.2M | +$73.7M |
| INTERNATIONAL FALLS-RANIER, MN | $16.1M | $8.0M | -$8.1M |
| BATON ROUGE, LA | $1.1M | $21.0M | +$19.9M |