Polymerized Castor Oil from Canada
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 — Canada → United States
18%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
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