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3911.90.91.50/Silicone Novolac Resin Powder/Mexico

Silicone Novolac Resin Powder from Mexico

Thermosetting silicone novolac hybrid resin powder for semiconductor encapsulation. 3911.90.91.50 as thermosetting NES primary polymer.

Duty Rate — Mexico → United States

16.5%

Rate breakdown

9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Calculate with your customs valueVerify classification with AI

Import Tips

• RoHS compliance certs essential for electronics resins

• Confirm <5% siloxane if pure silicone; shifts to 3910

• UL94 flammability ratings support classification evidence