Stabilized Vinyl Chloride Monomer from Mexico
Vinyl chloride monomer stabilized with inhibitors like methylhydroquinone to prevent premature polymerization during storage and transport, explicitly allowed under Chapter 29 note (f). Classified as HTS 2903.21.00.00 as the stabilizer is necessary for preservation.
Duty Rate — Mexico → United States
15.5%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Document stabilizer type and concentration (<0.1% typically) to qualify under Chapter 29 note (f) rather than Chapter 38 mixtures
• Comply with IATA/UN 1086 regulations for Division 2.1 flammable gases in pressurized cylinders
• Test for polymerization degree upon arrival; any pre-polymerization may shift to Chapter 39