High Purity PFOS 99% Technical Grade from Mexico
Technical grade perfluorooctane sulfonic acid at 99% purity, qualifying as chemically defined under Chapter 29 note (a). Classified in HTS 2904.31.00.00 despite minor impurities not affecting identity.
Duty Rate — Mexico → United States
13.7%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Include GC-MS impurity profile confirming <1% non-PFOS content
• Certify 'technical grade' doesn't constitute mixture under Chapter 29
• Specify batch consistency for REPEAT import approvals