Insulated Hollow Clay Blocks for Load-Bearing Walls from Mexico
Hollow clay blocks with internal insulation voids for load-bearing exterior walls, produced by high-temperature firing after shaping. Falls under HTS 6904.10.00.40 as other hollow building bricks essential for energy-efficient construction.
Duty Rate — Mexico → United States
10%
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
• Certify structural load ratings and compressive strength to support building brick classification
• Ensure no metallic reinforcements, as those might classify as Chapter 73 articles
• Document water absorption under 3% if stoneware-like to differentiate from earthenware exclusions