Dimethyldichlorosilane from Japan
Dimethyldichlorosilane is a chemically defined organo-silicon compound with the formula (CH3)2SiCl2, used primarily as a precursor in silicone polymer production. It falls under HTS 2931.90.90.10 as an organo-inorganic compound where silicon is directly linked to carbon atoms, fitting Chapter 29's scope for separate organic compounds containing nonmetals like silicon.
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%
Import Tips
• Provide Safety Data Sheets (SDS) and chemical purity certificates to verify classification under Chapter 29 organo-silicon provisions
• Declare exact chemical composition and CAS number (75-94-5) to avoid misclassification into Chapter 28 inorganic silicon compounds
• Check for REACH/ TSCA compliance; common pitfall is inadequate hazard labeling leading to customs holds