Section 06 PRODUCTS OF THE CHEMICAL OR ALLIED INDUSTRIES 28 Inorganic chemicals; organic or inorganic compounds of precious metals , of rare 28 05 Alkali or alkaline-earth metals; rare-earth metals, scandium and yttrium, whethe Commodity Code Description 28 05 11 28 05 12 28 05 19 28 05 30 28 05 40