Acid Grade Fluorspar Lump from Mexico
High-purity fluorspar lumps containing over 97% calcium fluoride, mined and crushed for industrial use in hydrofluoric acid production. This raw material falls under HTS 2529.22.00.00 due to its exceptional calcium fluoride content exceeding 97% by weight, distinguishing it from lower-grade fluorspar.
Duty Rate — Mexico → United States
0%
Rate breakdown
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• Verify calcium fluoride purity via certified lab assays; customs requires documentation proving >97% content
• Ensure proper MSDS and mining origin certificates to avoid misclassification as lower-grade fluorspar
• Use ventilated containers to prevent moisture absorption during transit, which could alter weight-based purity