Tufa Building Blocks from Mexico
Lightweight tufa (volcanic tuff) blocks sawn flat for porous building walls. 6802.29.9000 covers other simply cut monumental stone articles with even surfaces. Excellent insulation properties for sustainable construction.
Duty Rate — Mexico → United States
16%
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
• Measure water absorption rates proving tufa characteristics
• Declare block dimensions precisely for volumetric duty assessment
• Fumigate if organic inclusions present per phytosanitary rules