PMMA Contact Lens Button from Canada
Polymethyl methacrylate (PMMA) buttons for lathe-turning rigid gas-permeable contact lenses. Classifies HTS 9001.90.90.00 as unmounted polymer optical elements for vision correction. Standard optician raw material.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Dk oxygen permeability specs and wettability data for FDA clearance
• Button geometry (diameter, center thickness) confirms lens blank status
• Medical device 510(k) documentation coordinates with customs