HTS Heading 2818

Artificial corundum, whether or not chemically defined; aluminum oxide; aluminum hydroxide

All 5 HTS codes under heading 2818 (artificial corundum), with their duty rates from the 2026 HTS Revision 23. General duty Free to 1.3%.

Every line of heading 2818

  • 2818 Artificial corundum, whether or not chemically defined; aluminum oxide; aluminum hydroxide.
  • 2818.10 Artificial corundum, whether or not chemically defined.
  • 2818.10.10.00 Crude (under: Artificial corundum, whether or not chemically defined) (t): General Free; Special none; Column 2 Free.
  • 2818.10.20 In grains, or ground, pulverized or refined: General 1.3%; Special Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG); Column 2 4.1%.
  • 2818.10.20.10 White, pink or ruby, containing more than 97.5 percent by weight of aluminum oxide (kg).
  • 2818.10.20.90 Other (under: In grains, or ground, pulverized or refined) (kg).
  • 2818.20.00.00 Aluminum oxide, other than artificial corundum (kg): General Free; Special none; Column 2 1.1¢/kg.
  • 2818.30.00.00 Aluminum hydroxide (under: Artificial corundum, whether or not chemically defined; aluminum oxide; aluminum hydroxide) (kg): General Free; Special none; Column 2 1.1¢/kg.

About these rates

The rates are those printed in the 2026 HTS Revision 23, published by the U.S. International Trade Commission. A 10-digit statistical line takes the rates printed on the 8-digit line above it. Chapter 99 duties (Section 232, Section 301, IEEPA) depend on the product, the origin and the date, are charged on top, and are not included. A code here is a strong lead, not a ruling: confirm it with a customs broker or a CBP binding ruling.

Last reviewed 2026-11-12.