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