Harmonized Tariff Schedule of the U.S. › Chapter 28 Inorganic chemicals; compounds of precious metals, rare-earth metals, radioactive elements or isotopes
2825.90.15.00Tariff line
Classification path
Hydrazine and hydroxylamine and their inorganic salts; other inorganic bases; other metal oxides, hydroxides and peroxides
2825
Other
Niobium oxide
2825.90.15.00
Rates of duty
General rate (Column 1)3.7%
SpecialFree (A*, AU, BH, CL, CO, D, E, IL, JO, KR, MA, OM, P, PA, PE, S, SG)
Column 225%
Unitkg
Free (A*, AU, BH, CL, CO, D, E, IL, JO, KR, MA, OM, P, PA, PE, S, SG)
Printed page 1400
Measure flags
for origin CN, entry date 2026-10-25 · base rate 3.7%
- Section 301 forced-labor tariff (12.5%)9903.05.86ExemptexemptOn the note 52(b) general exemption list (exempt by HTS line; enter under 9903.05.86)
- China 301 List 3 (9903.88.03)9903.88.03Applies+25%8-digit subheading 2825.90.15 is on L3
- PGAEPA EP7
Confirmed total 28.7% · max 28.7%Full duty breakdown →