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Vinyltrimethoxysilane

Vinyltrimethoxysilane (CH2=CHSi(OCH3)3) is a coupling agent used in composite materials and adhesives. As a chemically defined organo-silicon compound, it belongs to HTS 2931.90.90.10.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China3.7%+133.8%137.5%
🇲🇽Mexico3.7%+106.3%110%
🇨🇦Canada3.7%+106.3%110%
🇩🇪GermanyFree+21.3%21.3%
🇯🇵JapanFree+23.8%23.8%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

2920.90Lower: 16.2% vs 137.5%

If oxygen-function compound classification

Silane esters could classify under later oxygen-function headings per Chapter note 3(A).

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Import Tips & Compliance

Specify application (e.g

'adhesion promoter') but maintain chemical compound focus for classification

Hydrolyzable groups require stability data under Chapter 29 solvent notes