S-Glass Continuous Filament Bulk from Mexico
High-strength S-glass continuous filaments in bulk packaging for aerospace composite reinforcement. Classified under HTS 7019.90.51.20 as other glass fibers in bulk, distinct from yarns or woven forms. Includes fused silica variants per tariff schedule definitions.
Duty Rate — Mexico → United States
14.3%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Document tensile strength specs to justify S-glass classification; use non-woven bulk packaging
• Comply with REACH-like certifications for industrial fibers
• Avoid any twisting that could classify as yarn under 7019.10