Loading...
U.S. imports of fluorspar (>97% calcium fluoride) (HS 252922) totaled $27.2M in July 2026, traded with 10 countries.
Fluorspar (>97% Calcium Fluoride) imports of $27.2M in July 2026 ran 55% above the year-to-date monthly average of $17.6M.
Last updated: July 2026 dataHigh-purity fluorspar exceeding 97% calcium fluoride by weight — classified under 2529220000 — is the preferred feedstock for hydrofluoric acid synthesis and specialty ceramic applications where lower-grade material is unsuitable. Mexico is the leading supplier to the US at this purity tier, and imports from Mexico meeting USMCA rules of origin qualify for preferential duty treatment. South Africa and Mongolia are secondary sources, providing geographic diversification for buyers concerned about single-country concentration.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
24 shipments/mo
Customs brokers recommend including a third-party or supplier-issued certificate of analysis (CoA) showing CaF₂ content exceeding 97% by weight, along with silica, sulfur, and carbonate impurity levels. CBP may request this documentation to verify the correct subheading, particularly when the invoice description is ambiguous between acid-grade and metallurgical-grade material.
Hydrofluoric acid (HF) is produced by reacting fluorspar with sulfuric acid. Acid-grade fluorspar (>97% CaF₂) is required because impurities — especially silica and sulfur — degrade HF yield and create processing complications. Metallurgical-grade material (≤97% CaF₂) is generally not suitable for direct HF production without additional beneficiation, which is why the two purity tiers carry separate HTS classifications and often trade at different price points.
Supplier Network
Get discovered by U.S. importers searching for HS 252922 — Fluorspar (>97% Calcium Fluoride). Be the first supplier listed.
HSChapter 25
Subheading 1 of 4 in heading 2529
Subheading 252922 · $27.2M of $36.5M
ImportsExports
Imports
$27.2MYoY · Pro
Exports
$0YoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Dutiable Share |
|---|---|---|---|---|
| 2529220000 | Fluorspar Contng by Wt Gt 97% Calcium Fluoride | $27.2M | 0.00% | 0.00% |
Imports · July 2026
origin
Mexico and Thailand together supply 65% of it.
customs district
destination
entry
rate provision · imports
100.0% enters free of duty; the effective duty rate is 0.00%.