Modacrylic-Cotton Fire-Resistant Yarn from Mexico
A specialized yarn blending modacrylic staple fibers mainly with cotton, designed for fire-retardant fabrics in uniforms and protective clothing. Classified under HTS 5509.62.00.00 due to modacrylic content and cotton mixture exceeding 50%, supplied in bulk cones for industrial weaving. It meets flame-resistant standards while remaining soft.
Duty Rate — Mexico → United States
22%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Provide flame-retardancy test reports and exact blend ratios to customs for verification
• Ensure yarn is on large cones or beams, not retail packaging, to stay in non-retail HTS
• Watch for undervaluation pitfalls; declare full commercial value including FR treatments