Thorium Silicate Mixture from Mexico
Mixture of thorium compounds with silicates for ceramic applications. Classified as 'mixtures containing thorium compounds' under HTS 2844.30.5050. Specific activity determines heading.
Duty Rate — Mexico → United States
5%
Rate breakdown
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• Silica/thoria ratio documentation; alpha spectroscopy; Rule 3(a) principal function analysis