Section 06 PRODUCTS OF THE CHEMICAL OR ALLIED INDUSTRIES 28 Inorganic chemicals; organic or inorganic compounds of precious metals , of rare 28 02 Sulphur, sublimed or precipitated; colloidal sulphur. 28 02 00 28 02 00 00 Commodity Code Description 28 02 00 00 00 Sulphur, sublimed or precipitated; colloidal sulphur.