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 52 Compounds, inorganic or organic, of mercury, excluding amalgams. 28 52 90 Other 28 52 90 00 Other Commodity Code Description 28 52 90 00 000 Other
