Polymerized TMQ Antioxidant for Tires (Grade 224) from China
Grade 224 polymerized TMQ consists of high-molecular-weight oligomers of 2,2,4-trimethyl-1,2-dihydroquinoline for tire carcass compounds. Its classification under HTS 3812.31.00.00 is based on the statutory definition for these specific rubber stabilizer mixtures.
Duty Rate — China → United States
44%
Rate breakdown
9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 to this subchapter
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 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(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Import Tips
• Include end-user statements from tire manufacturers to support rubber-specific classification
• Monitor EU REACH authorizations if transshipping; TMQ may have usage restrictions