Mixed C4 Acetylenes Petroleum Fraction from China
Mixed C4 acetylenes (1-butyne, 2-butyne, vinylacetylene) recovered from petroleum acetylene processes. HTS 2901.29.10 covers these unsaturated acyclic hydrocarbons with triple bonds derived from natural gas liquids. Used in vinylacetylene-based synthetic rubber intermediates.
Duty Rate — China → United States
35%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
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)
Import Tips
• Stabilizer package specification (typically 0.1% tertiary amine) mandatory
• Cylinder valve outlet compatibility testing required due to acetylenic corrosivity
• Explosion risk; specify max 50% concentration in solvent for safe transport