S-Glass Roving Yarn from Mexico
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 — Mexico → United States
14.2%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
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