Harmonized Tariff Schedule of the U.S. › Chapter 38 Miscellaneous chemical products
3824.40.20.00Tariff line
Classification path
Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included
3824
Prepared additives for cements, mortars or concretes
Consisting wholly of inorganic substances
3824.40.20.00
Rates of duty
General rate (Column 1)Free
Special—
Column 225%
Unitkg
Printed page 1673
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 3824.40.20 is on L3
Confirmed total 37.5% · max 37.5%Full duty breakdown →