Petroleum Sulfonic Acid Sodium Salt from Canada
Mahogany sulfonates from petroleum refining, aromatic fraction, classified HTS 2904.10.32.00 per note 3. Used as emulsifiers in oilfield chemicals.
Duty Rate — Canada → United States
15.5%
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
• Sulfonate content >50% required for chapter 29 classification
• AN (acid number) 10-30 specification verification
• Dark color natural; not purity indicator