Bismaleimide Resin Pellets from Mexico
High-temp bismaleimide (BMI) thermosetting resin pellets for aircraft structures. Primary form classification under 3911.90.91.50 as other thermosets.
Duty Rate — Mexico → United States
16.5%
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
• Provide gel permeation chromatography (GPC) for molecular weight confirming primary form
• Segregate from thermoplastics; blend ratios trigger note (a)(4) reclassification
• FAA certification docs helpful for aerospace resin imports