Acid-Resistant Fireclay Refractory Brick from Mexico
Fireclay brick engineered for resistance to acidic slags and gases in chemical processing kilns. Fired from high-silica clay content for durability at 1350-1500°C. Precisely matches HTS 6902.90.10.10 for other clay refractory bricks.
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
• Include chemical analysis showing SiO2 >60% for acid resistance claims during customs valuation
• Avoid co-mingling with basic clay bricks in shipments; segregate for accurate 10.10 suffix reporting