Norbornane tetracarboxylic dianhydride from China
Bicyclic cyclanic compound with four carboxylic groups forming dual anhydride functionalities on norbornane framework. Classified under HTS 2917.20.00.00 as cyclanic polycarboxylic acid derivative. Used in polyimide films for electronics.
Duty Rate — China → United States
41.7%
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
• Submit X-ray crystallography confirming bicyclic structure essential for classification
• Ensure cleanroom packaging prevents contamination affecting semiconductor end-use
• Declare dual anhydride functionality on customs forms for accurate description