Bulk Natural Tripoli Lumps from Mexico
Crude tripoli (rottenstone) irregular pieces, siliceous sedimentary rock for metal polishing. Natural abrasive under HTS 2513.20.1000.
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
• SiO2 purity tests essential