Polymerized Castor Oil from China
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 — China → United States
28%
Rate breakdown
9903.88.157.5%Except as provided in headings 9903.88.39, 9903.88.42, 9903.88.44, 9903.88.47, 9903.88.49, 9903.88.51, 9903.88.53, 9903.88.55, 9903.88.57, 9903.88.65, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(r) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(s)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
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