Harmonized Tariff Schedule of the U.S. › Chapter 29 Organic chemicals
2908.99.06.00Tariff line
Classification path
Halogenated, sulfonated, nitrated or nitrosated derivatives of phenols or phenol-alcohols
2908
Other
Other
Derivatives containing only sulfo groups, their salts and esters
4-Hydroxy-1-naphthalenesulfonic acid (1-Naphthol-4-sulfonic acid)
2908.99.06.00
Rates of duty
General rate (Column 1)Free
Special—
Column 215.4¢/kg + 45.5%
Unitkg
Printed page 1450
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 4A (9903.88.15)9903.88.15Applies+7.5%8-digit subheading 2908.99.06 is on L4A
- PGAEPA EP7
Confirmed total 20% · max 20%Full duty breakdown →