Norbornane tetracarboxylic dianhydride from Mexico
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 — Mexico → United States
14.2%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
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