</>Build with Tariff Intelligence|Programmatic access to tariff calculations and HS code classification.Explore Developer Resources →

Vinyltriethoxysilane from Mexico

Although silicones often classified elsewhere, vinyltriethoxysilane with Si-C vinyl bond qualifies as organo-inorganic under 2931.90.90 when imported as pure compound. Silane coupling agent for composites; chapter notes distinguish from polymers.

Duty Rate — Mexico → United States

13.7%

Rate breakdown

9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico

Import Tips

Flammable liquid UN1993; distillation residue documentation often required

Common misclassification to 3910 silicone oils—prove monomer status with GC analysis

REACH Annex XVII restrictions apply to certain silanes

Vinyltriethoxysilane from Mexico — Import Duty Rate | HTS 2931.90.90