Harmonized Tariff Schedule of the U.S. › Chapter 29 Organic chemicals
2934.99.03.00Tariff line
Classification path
Nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds
2934
Other
Other
Aromatic or modified aromatic
2-Acetylbenzo(b)thiophene; 3-Methylene-7-(2-phenoxyacetamido)- cephan-4-carboxylic acid, p-nitrobenzyl ester, 1-oxide; and Naphth[1,2-d]-[1,2,3]-oxadiazole-5-sulfonic acid and its sodium salt
2934.99.03.00
Rates of duty
General rate (Column 1)Free
Special—
Column 215.4¢/kg + 52%
Unitkg
Printed page 1566
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: not on any listN/A—8-digit subheading 2934.99.03 is not on Lists 1–4B or the four-year-review lists
- PGAEPA EP7
Confirmed total 12.5% · max 12.5%Full duty breakdown →