TMQ-8 Rubber Aging Preventer Oligomers from China
TMQ-8 is an industrial mixture of 2,2,4-trimethyl-1,2-dihydroquinoline oligomers applied in automotive hoses and seals for oxidation protection. It fits HTS 3812.31.00.00 exactly as specified for these rubber anti-oxidizing preparations.
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
• Use commercial invoices detailing nitrogen content and oligomer degree to match TMQ specifications
• For drum quantities, ensure proper IMDG classification if shipped by sea
• Avoid declaring as 'rubber chemicals' generically; specific TMQ reference prevents 3812.90 default