Harmonized System
Section VI > Chapter 28 > Heading 2801 > 2801.30
Fluorine; bromine
Section VI > Chapter 28 > Heading 2802
Sulphur, sublimed or precipitated; colloidal sulphur.
Section VI > Chapter 28 > Heading 2802 > 2802.00
Sulphur, sublimed or precipitated; colloidal sulphur
Section VI > Chapter 28 > Heading 2803
Carbon (carbon blacks and other forms of carbon not elsewhere specified or included).
Section VI > Chapter 28 > Heading 2803 > 2803.00
Carbon (carbon blacks and other forms of carbon not elsewhere specified or included)
Section VI > Chapter 28 > Heading 2804
Hydrogen, rare gases and other non-metals.