Electronic-Grade Styrene Monomer from United States
Electronic-grade styrene monomer is an ultra-high purity form of styrene (C6H5CH=CH2), a cyclic hydrocarbon, with metal impurities below 1 ppm and particle counts under 5 ppb. It is used in photoresist manufacturing for semiconductor production. Despite its specialized application, it remains a separate chemically defined organic compound, classifiable under tariff item 2902.50.00.
Duty Rate — United States → Canada
Import Tips
• Ensure the product is accompanied by a certificate of analysis confirming purity and impurity levels, as CBSA may request it to verify classification
• Declare the styrene under tariff item 2902.50.00, and note that it is subject to the Canadian Environmental Protection Act (CEPA) if imported in bulk quantities
• Verify if a Controlled Goods or import permit is needed for semiconductor-grade chemicals