Engineering Hollow Ceramic Bricks Class SX from Japan
Class SX engineering hollow ceramic bricks for severe weather exposure, high-fired clay construction units. Under HTS 6904.10.00.40 as other hollow bricks for demanding structural applications.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• Include weathering resistance test results (ASTM C902) for engineering grade verification
• Ensure no surface treatments pushing into glazed tile classifications
• Document firing uniformity to meet Chapter 69 inorganic nonmetallic materials definition