Dolomite Refractory Brick for Cement Kilns from Mexico
Fired bricks composed mainly of dolime (calcined dolomite) designed for lining rotary cement kilns. Classified under HTS 6815.91.00.71 as it contains dolomite and qualifies as an other article of mineral substances, excluding worked monumental stone. Offers superior resistance to alkali attacks in high-temperature environments.
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
• Provide chemical composition certificates showing dolomite content; ensure not classified as Chapter 69 if pre-formed shapes; check for anti-dumping duties on Chinese refractories