Plastic Clay Refractory Rammer Mix Bricks from Mexico
Pre-formed bricks from plastic clay ramming mixes for repairing furnace linings, fired after on-site shaping. HTS 6902.90.50.10 applies to these clay refractory blocks. Used in maintenance of glass melting tanks and ladles.
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
• Document both factory pre-forming and firing processes to establish 'shaped and fired' status
• Test for bulk density (<2.0 g/cm³) typical of clay refractories to support classification
• Separate from dry powder mixes which classify under chemical preparations (Chapter 38)