Electric-Fused Quartz Mass from China
Bulk mass of quartz glass produced by electric arc fusion, known for low bubble content in high-end applications. It is 'glass in the mass of fused quartz' under HTS 7001.00.10.00, as processes before annealing do not constitute working.
Duty Rate — China → United States
37.5%
Rate breakdown
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)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Include fusion method certification; electric vs flame affects bubble and strain specs
• Prevent contamination; ship in cleanroom-sealed bags to maintain purity
• Harmonize invoices with HTS; specify 'not drawn, blown, or cut beyond mass'