Liquefied n-Butane Petrochemical Feedstock from China
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 — China → United States
25%
Rate breakdown
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
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