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%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
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