Kaolin-Based Plastic Refractory Clay from Mexico
Plastic refractory clay made from kaolin with plasticizers for forming dense linings in boilers and incinerators. It qualifies under HTS 3816.00.20.10 as a clay refractory mortar/concrete composition for high-heat resistance.
Duty Rate — Mexico → United States
13%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Conduct XRF analysis to document kaolin clay as primary constituent over 40%
• Label as 'plastic refractory' with working temperature range to distinguish from pottery clay