Traprock Concrete Coarse Aggregate from Mexico
Dense traprock (diabase) crushed to 1-1/2 inch maximum size for structural concrete coarse aggregate. Superior bonding properties under HTS 2517.10.00 concrete aggregate use. Dark green-black color.
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
• Bond strength test data differentiates from decorative traprock
• ASTM C29 specific gravity certification proves heavyweight concrete suitability
• Pure traprock without basalt mix maintains consistent classification