Harmonized Tariff Schedule of the U.S. › Chapter 28 Inorganic chemicals; compounds of precious metals, rare-earth metals, radioactive elements or isotopes
2833.21.00.00Tariff line
Classification path
Sulfates; alums; peroxosulfates (persulfates)
2833
Other sulfates
Of magnesium
2833.21.00.00
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 220%
Unitkg
Free (A, AU, BH, CL, CO, D, E, IL, JO, KR, MA, OM, P, PA, PE, S, SG)
Printed page 1407
Measure flags
for origin CN, entry date 2026-10-26 · 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 2833.21.00 is on L3
- PGAFDA FD3EPA EP7
Confirmed total 28.7% · max 28.7%Full duty breakdown →