Trimethylolpropane Trimethacrylate from China
Trimethylolpropane trimethacrylate (TMPTMA) is trifunctional crosslinking agent for high-strength composites and 3D printing resins. Three methacrylate groups enable dense network formation; HTS 2916.14.20.50 statistical category for multifunctional esters. High shrinkage during cure characteristic.
Duty Rate — China → United States
41.2%
Rate breakdown
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)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Functionality number 2.9-3.1 via titration; MEHQ 500 ppm minimum; high flash point 214°C UN3082