Liquefied n-Butane Petrochemical Feedstock from Canada
Railcar quantities of polymer-grade n-butane (99.9% purity) for butane dehydrogenation to butadiene. HTS 2711.13.0020 covers liquefied butanes used as chemical intermediates.
Duty Rate — Canada → United States
0%
Rate breakdown
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• ISO tank requirements include double-wall construction and emergency shutoff valves
• Feedstock contracts specify ASTM D2163 vapor pressure limits
• Bulk importers overlook terminal heating requirements for unloading