Methylacetylene Gas from China

Methylacetylene (propyne) gas used in welding torches and chemical synthesis, petroleum-derived and gaseous. Under HTS 2711.29.00 as other gaseous hydrocarbons, not fitting olefin specifics or light oils. Flammable per safety regs.

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%Universal product exemption (U.S. note 52(b))

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Import Tips

• UN 1004 hazmat declaration mandatory

• Purity docs to distinguish from mixtures

• Stabilized to prevent polymerization