S-Glass Roving Yarn from Japan
High-strength S-glass roving yarn for aerospace composites and military applications, featuring low dielectric properties. Falls under HTS 7019.13.35.00 as 'other' glass fiber yarn or slivers. Distinguished from basic E-glass by superior tensile strength.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Include technical data sheets proving S-glass composition (higher silica content) to justify premium classification
• Comply with ITAR/EAR export controls if destined for defense applications during import declaration
• Package in moisture-proof containers to prevent degradation, with certificates of analysis