Cement Fireproof Barriers from Mexico
Portland cement panels for fire-rated walls and partitions in construction. Classified HTS 6810.99.00.80 as other cement articles, tested for fire resistance, not basic boards. Reinforced with fibers.
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 UL or ASTM fire rating certifications mandatory for entry
• Specify non-asbestos fiber reinforcement
• Differentiate from Chapter 94 prefabricated buildings