Ammonium Perfluorooctane Sulfonate from United States
Ammonium perfluorooctane sulfonate is the ammonium salt of perfluorooctane sulfonic acid (PFOS). It is a chemically defined organic compound with a sulfonate group, and under Chapter 29 salt classification rules, it is classified with the corresponding acid in this tariff item.
Duty Rate — United States → Canada
0%
Import Tips
• Ensure the product is clearly labelled as ammonium perfluorooctane sulfonate with purity and CAS number on the commercial invoice
• Verify if the product is subject to Canada's Prohibition of Certain Toxic Substances Regulations, as PFOS is restricted
• Keep a certificate of analysis to confirm chemical identity for CBSA