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U.S. exports of liquefied butanes (HS 271113) totaled $531.3M in July 2026.
Importers of Liquefied Butanes paid $55K in duties in July 2026 — an effective duty rate of 18% on $304K in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: July 2026 dataLiquefied butanes are classified at the 10-digit level by purity band: 90–95 liquid volume percent (2711130010) versus other grades (2711130020), with a legacy catch-all line (2711130000) also present in the schedule. Butanes serve as both LPG blending components — particularly for gasoline vapor pressure management — and as petrochemical feedstocks for isobutylene and butadiene production. Canada is the leading US import source, with South Korea and Equatorial Guinea also among the top suppliers. The vapor pressure sensitivity of butane blends makes seasonal gasoline specifications (summer versus winter RVP limits) a key commercial driver for import timing.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
2.7K shipments/mo
EPA limits the Reid Vapor Pressure of finished gasoline during summer months to reduce evaporative emissions, which restricts how much butane refiners can blend into gasoline from approximately June through September. As a result, butane import demand tends to be stronger in the fall and winter when blending limits relax. Importers and traders should align import schedules with the seasonal RVP calendar to avoid storage bottlenecks or forced discounting of product that cannot be immediately blended.
The 90–95% purity band (2711130010) captures butane streams of intermediate commercial grade, while the NESOI line (2711130020) covers both higher-purity chemical-grade butane and lower-purity mixed LPG streams where butane is the predominant component. A certificate of analysis confirming the liquid volume composition is the standard documentation for selecting the correct line, and CBP may request this at entry.
HSChapter 27
Subheading 3 of 7 in heading 2711
Subheading 271113 · $73.1M of $545.4M
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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 |
|---|---|---|---|---|---|
| 2711130020 | Butanes, Liquefied, NESOI | $64.7M | 0.07% | 0.42% | $49K |
| 2711130010 | Butanes, Liquefied, Purity of 90-95 Liq Volme Pcnt | $8.4M | 0.08% | 0.35% | $7K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2711130000 | Butanes, Liquefied | $531.3M |
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.
ImportsExports
Imports
$73.1MYoY · Pro
Exports
$531.3MYoY · 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
99.6% enters free of duty; the effective duty rate is 0.08%.