Basalt Fiber Yarn from Mexico
Continuous filament yarn spun from molten basalt rock, used in construction and automotive composites. HTS 7019.13.35.00 includes this as 'other' glass-like fiber yarn per fused silica definition. Offers natural alkali resistance.
Duty Rate — Mexico → United States
14.2%
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
• Prove molten rock origin via geological certification vs. synthetic glass confusion
• Test for fused silica equivalence per Chapter 70 note on 'glass' definition
• Declare environmental advantages only after chemical composition verification