p-Xylene with Stabilizer from Mexico
p-Xylene containing polymerization inhibitor (e.g., 10 ppm t-butylcatechol) necessary for safe transport, still classified as the base compound under HTS 2902.43.00.00 per Chapter 29 note (f). Used in chemical intermediate production.
Duty Rate — Mexico → United States
10%
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 addition solely for preservation/transport to maintain Chapter 29 classification
• Specify inhibitor concentration (<50 ppm) on COA to avoid Chapter 38 mixture classification
• Ensure compatibility testing for stainless steel 316L tankers used in bulk import