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6902.90.50.20/Insulating Refractory Brick/Mexico

Insulating Refractory Brick from Mexico

Insulating refractory bricks are lightweight, fired ceramic bricks with porous structure for furnace back-up insulation, reducing heat loss. They have low thermal conductivity while refractory. Fits HTS 6902.90.50.20 as other refractory constructional bricks.

Duty Rate — Mexico → United States

10%

Rate breakdown

9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
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Import Tips

• Provide bulk density and thermal conductivity specs to confirm insulating refractory status

• Distinguish from dense bricks via documentation to stay in 6902

• Ensure no organic binders; only inorganic fired materials per chapter notes

Insulating Refractory Brick from Mexico — Import Duty Rate | HTS 6902.90.50.20