Quartz Glass Powder for Glass Frit Production from China
High-purity quartz glass ground into fine flakes or granules, used in manufacturing specialty glass frit for enameling on glass substrates. Falls under HTS 3207.40.5000 as 'other glass' in granular form for the glass industry.
Duty Rate — China → United States
41.5%
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
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)
Import Tips
• Provide purity analysis (SiO2 content >99%) to distinguish from common silica sand under Chapter 25
• Label as 'glass industry preparatory material' to avoid bulk silica classification
• Ensure particle size specs match end-use in frit melting processes