Vinyltriethoxysilane from Japan

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 — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%

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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