HS CodesVI · Products of the chemical or allied industries28 · Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes2804280450280450Chapter 28Copy pageBoron; telluriumDescriptionHydrogen, rare gases and other non-metals : Boron; telluriumWas this page helpful?YesNoPrevious280440OxygenNextContaining by weight not less than 99,99 % of silicon280461