</>Build with Tariff Intelligence|Programmatic access to tariff calculations and HS code classification.Explore Developer Resources →

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%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico

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