Chloromethane Silicone Monomer Precursor from Canada
High-purity chloromethane serves as the methylating agent in the direct process for producing dimethyldichlorosilane, the primary silicone monomer. Classified under HTS 2903.11.0010 as it is chemically defined chloromethane used in organosilicon synthesis. Ultra-high purity minimizes side reactions.
Duty Rate — Canada → United States
15.5%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Specify electronic grade purity (>99.999%) with metallic impurity analysis for semiconductor applications
• Coordinate with silicone polymer HTS 3910.00 declarations for complete supply chain
• Monitor for HCl byproduct formation during storage; requires alkaline scrubber systems