Harmonized Tariff Schedule of the U.S. › Chapter 29 Organic chemicals
2908.99.03.00Tariff 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
2,5-Dihydroxybenzenesulfonic acid, potassium salt; 3,6-Dihydroxy-2,7-naphthalenedisulfonic acid; 3,6-Dihydroxy-2,7-naphthalenedisulfonic acid, sodium salt; 4-Hydroxy-1-naphthalenesulfonic acid, sodium salt; 1-Naphthol-3,6-disulfonic acid; and 2-Naphthol-3,6-disulfonic acid and its salts
2908.99.03.00
Rates of duty
General rate (Column 1)5.5%
SpecialFree (A+, AU, BH, CL, CO, D, E, IL, JO, KR, L, MA, OM, P, PA, PE, S, SG)
Column 215.4¢/kg + 45.5%
Unitkg
Free (A+, AU, BH, CL, CO, D, E, IL, JO, KR, L, MA, OM, P, PA, PE, S, SG)
Printed page 1450
Measure flags
for origin CN, entry date 2026-10-25 · base rate 5.5%
- 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 2908.99.03 is on L3
- PGAEPA EP7
Confirmed total 43% · max 43%Full duty breakdown →