Gneiss Broken Stone for Concrete Aggregate from Mexico
Broken gneiss stone fragments for concrete aggregate, providing tensile strength. Derived from heading 2516 granite family, under HTS 2517.10.0055 as 'other' broken/crushed stone for concrete. Angular shapes lock effectively.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Fracture pattern photos/docs prove 'broken stone' vs naturally fractured rock
• Soundness test (ASTM C88, <12% loss) required for durable aggregate approval
• Bulk shipments only; small lots risk parts classification scrutiny