Harmonized Tariff Schedule of the U.S. › Chapter 29 Organic chemicals
2922.21.25.00Tariff line
Classification path
Oxygen-function amino-compounds
2922
Amino-naphthols and other amino-phenols, other than those containing more than one kind of oxygen function, their ethers and esters; salts thereof
Aminohydroxynaphthalenesulfonic acids and their salts
1-Amino-8-hydroxy-4,6-naphthalenedisulfonic acid, monosodium salt
2922.21.25.00
Rates of duty
General rate (Column 1)Free
Special—
Column 215.4¢/kg + 50%
Unitkg
Printed page 1506
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 List 3 (9903.88.03)9903.88.03Applies+25%8-digit subheading 2922.21.25 is on L3
- PGAEPA EP7
Confirmed total 37.5% · max 37.5%Full duty breakdown →