Zinc Silicate Aluminosilicate from Mexico
Synthetic zinc silicate aluminosilicates are used as molecular sieves and catalysts in industrial processes. They fall under 2842.90.90 explicitly as aluminosilicates whether or not chemically defined, per the subheading.
Duty Rate — Mexico → United States
13.3%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Provide XRF analysis confirming aluminosilicate composition for customs verification
• Ensure dust-free packaging to comply with air cargo regulations
• Register under TSCA if not on inventory for new chemical review