Silica Quartz Lumps from Mexico
High-silica quartz lumps for ferrosilicon production in metallurgy. 2506.10.00 as quartz other than sands. Key metallurgical flux material.
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 assay >98% required; lump size declaration
• Pitfall: powder form to 2811