High Purity PFOS 99% Technical Grade from China
High purity PFOS at 99% purity is a separate chemically defined organic compound, as it meets the criteria in Chapter 29 note 1(a) even with minor impurities. It is perfluorooctane sulfonic acid, a sulfonated, halogenated derivative of hydrocarbons, and falls under this tariff item.
Duty Rate — China → Canada
0%
Import Tips
• Provide a certificate of analysis showing 99% purity and the absence of impurities that could change classification
• Be aware that PFOS is listed under the Stockholm Convention, and Canada may require a permit under the Canadian Environmental Protection Act
• Declare the exact technical grade on the invoice