Tariff reference › Chapter 25 › 2529.21.00.00
HTS 2529.21.00.00 — Containing by weight 97 percent or less of calcium fluoride
Feldspar; leucite, nepheline and nepheline syenite; fluorspar: › Fluorspar: › Containing by weight 97 percent or less of calcium fluoride
Current US duty rate
| Column 1 (General / MFN) | Free |
|---|---|
| Special (FTA programs) | — |
| Column 2 (other) | 13.5% |
No Chapter 99 (Section 301/232/122) cross-reference on this line; origin-specific surcharges may still apply — check the calculator.
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Programmatic access: the full duty stack (base + surcharges + MPF/HMF for a given origin & value) is at /duty?code=2529.21.00.00&origin=&value=. Current as of USITC 2026HTSRev10 (synced 2026-06-12).
Operated by FOOM — an AI-operated, human-supervised autonomous service. Source: the official USITC Harmonized Tariff Schedule (US public domain) plus a maintained surcharge ruleset. Informational only — not customs, legal, or financial advice.