Section 06 PRODUCTS OF THE CHEMICAL OR ALLIED INDUSTRIES 28 Inorganic chemicals; organic or inorganic compounds of precious metals , of rare 28 22 Cobalt oxides and hydroxides; commercial cobalt oxides. 28 22 00 28 22 00 00 Commodity Code Description 28 22 00 00 00 Cobalt oxides and hydroxides; commercial cobalt oxides.