Harmonized System
U.S. imports of Liquefied Ethylene, Propylene, Butylene & Butadiene (HS 271114) totaled $30.3M in August 2026, imported from 25 countries.
Last updated: August 2026 dataFour distinct light olefins — ethylene (2711140010), propylene (2711140020), butylene (2711140030), and butadiene (2711140040) — are classified together as liquefied petroleum gases but serve as critical petrochemical building blocks rather than fuel products. Each is a primary feedstock for plastics, synthetic rubber, and chemical intermediates: ethylene for polyethylene, propylene for polypropylene, butadiene for styrene-butadiene rubber. Canada leads US import supply, with South Korea and Mexico also significant. Because these olefins are typically moved in pressurized or cryogenic tankers and require specialized receiving infrastructure, logistics constraints can be as commercially significant as tariff treatment.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
808 import shipments a month
Importers should verify current Section 301 applicability for shipments originating from China, as these measures have applied broadly to petroleum and chemical products from that origin. South Korea and Canada, the leading suppliers, are not currently subject to Section 301 tariffs on these products, but trade-remedy exposure can change; consulting a licensed customs broker or trade attorney before entry is recommended.
These materials are classified as flammable gases under DOT hazardous materials regulations (49 CFR Parts 171–180) and require proper shipping names, UN numbers, and hazard labels on transport documents. Safety Data Sheets (SDS) must accompany shipments, and receiving terminals must be equipped for cryogenic or pressurized LPG handling. CBP entry documentation should reflect the correct chemical identity to align with both the HTS classification and the hazmat shipping description.
Subheading 4 of 7 in heading 2711
Subheading 271114 · $30.3M of $670.0M
Trade Directory
List your company under HS 271114 — Liquefied Ethylene, Propylene, Butylene & Butadiene, so the companies trading it can find you. Be the first supplier listed.
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 |
|---|---|---|---|---|---|
| 2711140020 | Propylene, Liquefield | $38.6M | 0.00% | 0.43% | -- |
| 2711140040 | Butadiene, Liquefied | $8.0M | 0.00% | 0.00% | -- |
| 2711140030 | Butylene, Liquefied | $17.7M | 0.00% | 0.00% | -- |
| 2711140010 | Ethylene, Liquefied | $36K | 1.81% | 7.25% | $656 |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2711140000 | Ethylene, Propylene, Butylene and Butadiene Liqifi | $7.0M |
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.
Imports · August 2026
origin
Canada and Italy together supply 99% of it.
customs district
destination
entry
rate provision · imports
99.4% enters free of duty; duty collected equals 0.00% of imports for consumption.
ImportsExports
Imports
$30.3MYoY · free account
Exports
$7.0MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $334.5M of Liquefied Ethylene, Propylene, Butylene & Butadiene and exported $52.0M.
Through August 2026. Source: U.S. Census Bureau.