Harmonized Tariff Schedule of the U.S. › Chapter 28 Inorganic chemicals; compounds of precious metals, rare-earth metals, radioactive elements or isotopes
2818.10.20.90Tariff line
Classification path
Artificial corundum, whether or not chemically defined; aluminum oxide; aluminum hydroxide
2818
Artificial corundum, whether or not chemically defined
In grains, or ground, pulverized or refined
Other
2818.10.20.90
Rates of duty
General rate (Column 1)1.3%
SpecialFree (A, AU, BH, CL, CO, D, E, IL, JO, KR, MA, OM, P, PA, PE, S, SG)
Column 24.1%
Unitkg
Free (A, AU, BH, CL, CO, D, E, IL, JO, KR, MA, OM, P, PA, PE, S, SG)
Printed page 1396
Measure flags
for origin CN, entry date 2026-10-26 · base rate 1.3%
- 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 4A (9903.88.15)9903.88.15Applies+7.5%8-digit subheading 2818.10.20 is on L4A
- AD/CVD: 3 orders in placeConditional—Cash deposits follow the company-specific rate (ACE case module). Coverage depends on each order's scope. The table below lists case numbers, status and the all-others rate. The all-others deposit rate is counted in the maximum exposure, not in the confirmed total.
- AD/CVD 3 casesConditionalAD 88.32% + CVD 165.05% / AD 135.18%A570190 / C570191; A570882
- PGAEPA EP7
Confirmed total 8.8% · max 262.17%Full duty breakdown →