Harmonized Tariff Schedule of the U.S. › Chapter 25 Salt; sulphur; earths and stone; plastering materials, lime and cement
2508.30.00.00Tariff line
Classification path
Other clays (not including expanded clays of heading 6806), andalusite, kyanite and sillimanite, whether or not calcined; mullite; chamotte or dinas earths
2508
Fire-clay
2508.30.00.00
Rates of duty
General rate (Column 1)Free
Special—
Column 2$1.97/t
Unitt
Printed page 1349
Measure flags
for origin CN, entry date 2026-10-26 · base rate Free
- Section 301 forced-labor tariff (12.5%)9903.05.31Applies+12.5%China: Column 1 rate + 12.5% additional
- China 301: not on any listN/A—8-digit subheading 2508.30.00 is not on Lists 1–4B or the four-year-review lists
Confirmed total 12.5% · max 12.5%Full duty breakdown →