Microbial Rhamnolipid Polyether Surfactant from Canada
Biosurfactant polyether from microbial fermentation of vegetable oils, non-ionic for bioremediation and green cleaners. Qualifies per note 2 as fatty substance-derived organic surface-active polyether. 3402.42.20.10 covers microbial origin polyethers.
Duty Rate — Canada → United States
14%
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
• Fermentation batch records prove microbial fatty substance origin vs synthetic
• Biotech import permits if live cultures present; pure isolate avoids