Cerium Tungstate Catalyst from Mexico
Cerium tungstate (Ce2(WO4)3) serves as a heterogeneous catalyst in oxidation reactions, under HTS 2841.80.00. Its structure provides high surface area for industrial catalysis.
Duty Rate — Mexico → United States
5.5%
Rate breakdown
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• Catalyst passport with activity data prevents preparation reclassification
• Declare support material absence (<1% binder)
• EPA chemical import notification for new catalysts