Polymerized Castor Oil from Mexico
Polymerized castor oil undergoes heat treatment in vacuum to form high-viscosity polymers used in lubricants and coatings. It qualifies for HTS 1518.00.40.00 as a heat-polymerized vegetable oil fraction, inedible for industrial applications.
Duty Rate — Mexico → United States
18%
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 polymerization process logs showing vacuum/heat conditions per chapter note requirements
• Declare exact ricinoleic acid content for customs valuation consistency
• Obtain REACH compliance certs for EU re-export containing castor derivatives