Section 06 Products of the chemical or allied industries 28 Inorganic chemicals; organic or inorganic compounds of precious metals, of rare - earth metals, of radioactive elements or isotopes 28 02 Sulphur, sublimed or precipitated; colloidal sulphur 28 02 00 Sulphur, sublimed or precipitated; colloidal sulphur. 28 02 00 00 Sulphur, sublimed or precipitated; colloidal sulphur. Commodity Code Description 28 02 00 00 000 Sulphur, sublimed or precipitated; colloidal sulphur.