Metallurgical Grade Fluorspar Fines from Mexico
Crushed fluorspar fines with 95-97% CaF2 content, used as a fluxing agent in steelmaking to lower melting points. Classified under HTS 2529.21.00.00 as low-grade fluorspar chunks or powder not exceeding 97% calcium fluoride purity.
Duty Rate — Mexico → United States
0%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Provide flux application end-use letter if borderline purity to support classification
• Use ventilated containers to prevent moisture absorption which affects CaF2 assay stability