Industrial N-Butane Process Gas from Canada
99.5% pure normal butane in returnable ton cylinders for petrochemical processing. HTS 2711.29.00.25 designation for other butanes in gaseous state used as feedstock or refrigerant. Supplied under pressure for industrial applications.
Duty Rate — Canada → United States
0%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Coordinate with pipeline specifications for purity certification
• Use tonnage declarations for large volumes
• Avoid misclassification as finished petroleum product