Harmonized Tariff Schedule of the U.S. › Chapter 68 Articles of stone, plaster, cement, asbestos, mica or similar materials
6806.20.00.00Tariff line
Classification path
Slag wool, rock wool and similar mineral wools; exfoliated vermiculite, expanded clays, foamed slag and similar expanded mineral materials; mixtures and articles of heat-insulating, sound-insulating or sound-absorbing mineral materials, other than those of heading 6811 or 6812, or of chapter 69
6806
Exfoliated vermiculite, expanded clays, foamed slag and similar expanded mineral materials (including intermixtures thereof)
6806.20.00.00
Rates of duty
General rate (Column 1)Free
Special—
Column 230%
Unitkg
Printed page 2455
Measure flags
for origin CN, entry date 2026-10-25 · base rate Free
- Section 301 forced-labor tariff (12.5%)9903.05.31Applies+12.5%China: Column 1 rate + 12.5% additional
- China 301 List 3 (9903.88.03)9903.88.03Applies+25%8-digit subheading 6806.20.00 is on L3
Confirmed total 37.5% · max 37.5%Full duty breakdown →