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HSChapter 27
U.S. imports of liquefied butanes (HS 271113) totaled $81.3M in April 2026, traded with 25 countries.
Importers of Liquefied Butanes paid $10K in duties in April 2026 — an effective duty rate of 11% on $89K in dutiable value, based on actual customs collections rather than the published tariff schedule. Liquefied Butanes imports of $81.3M in April 2026 ran 21% above the year-to-date monthly average of $67.1M.
Last updated: April 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.
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.
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Monthly import values over time
| Country | Imports | Exports | Balance |
|---|---|---|---|
| INDIA | -- | $188.5M | +$188.5M |
| KOREA, SOUTH | $2.1M | $82.2M | +$80.1M |
| CANADA | $79.1M | $3.1M | -$75.9M |
| CHINA | $41K | $58.7M | +$58.7M |
| MOROCCO | -- | $54.5M | +$54.5M |
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 2711130020 | BUTANES, LIQUEFIED, NESOI | $73.8M | 11.41% | $6K |
| 2711130010 | BUTANES, LIQUEFIED, PURITY OF 90-95 LIQ VOLME PCNT | $7.6M | 10.86% | $4K |
BUTANES, LIQUEFIED, NESOI
BUTANES, LIQUEFIED, PURITY OF 90-95 LIQ VOLME PCNT
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2711130000 | BUTANES, LIQUEFIED | $690.5M |
BUTANES, LIQUEFIED
2.3M m3
| State | Imports | Exports | Balance |
|---|---|---|---|
| Texas | $3.2M | $489.9M | +$486.7M |
| Washington | $30.3M | $70.9M | +$40.6M |
| Pennsylvania | $3.1M | $78.7M | +$75.6M |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| HOUSTON, TX | -- | $261.2M | +$261.2M |
| FREEPORT, TX | -- | $148.9M | +$148.9M |
| BELLINGHAM, WA | -- | $70.9M | +$70.9M |