Vestamid Stabilizer Resin MP-15 from Mexico
Vestamid Stabilizer Resin MP-15 falls under HTS 3911.90.15.00 as the precise polyethylene-blended carbodiimide homopolymer in primary pellet form with aromatic monomers. Applied in high-performance polyamide compounding for under-hood automotive parts requiring hydrolysis resistance. Meets Chapter 39 note (a)(1) for named polymer with ≥95% characteristic units.
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
• Include manufacturer's specification confirming CAS registry match to HTS-named polymer for binding ruling requests
• Segregate from generic PE resins to avoid 3901 classification challenges
• Document end-use as polymer additive, not finished article, preventing 3926 misclassification