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 05 Alkali or alkaline-earth metals; rare-earth metals... ; mercury Commodity Code Description 28 05 11 Sodium 28 05 12 Calcium 28 05 19 Other 28 05 30 Rare-earth metals, scandium and yttrium, whether or not intermixed or interalloyed 28 05 40 Mercury
