Harmonized System
Section VI > Chapter 28 > Heading 2816 > 2816.10
Hydroxide and peroxide of magnesium
Section VI > Chapter 28 > Heading 2816 > 2816.40
Oxides, hydroxides and peroxides, of strontium or barium
Section VI > Chapter 28 > Heading 2817
Zinc oxide; zinc peroxide.
Section VI > Chapter 28 > Heading 2817 > 2817.00
Zinc oxide; zinc peroxide
Section VI > Chapter 28 > Heading 2818
Artificial corundum, whether or not chemically defined; aluminium oxide; aluminium hydroxide.
Section VI > Chapter 28 > Heading 2818 > 2818.10
Artificial corundum, whether or not chemically defined
Section VI > Chapter 28 > Heading 2818 > 2818.20
Aluminium oxide, other than artificial corundum
Section VI > Chapter 28 > Heading 2818 > 2818.30
Aluminium hydroxide
Section VI > Chapter 28 > Heading 2819
Chromium oxides and hydroxides.
Section VI > Chapter 28 > Heading 2819 > 2819.10
Chromium trioxide