Hollow Insulating Fireclay Building Bricks from Mexico
Heat insulating hollow bricks made from fired fireclay suitable for moderate temperature construction applications. HTS 6904.10.00.30 covers these ceramic building bricks designed specifically for thermal insulation through hollow core construction. Balances durability with energy efficiency.
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
• Test for water absorption per ASTM C373 to confirm ceramic body classification parameters
• Separate statistical reporting by end use (residential/commercial) improves inventory tracking
• Insure shipments comprehensively as ceramic breakage constitutes 15-20% of construction import claims