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 isotopes2820282090282090Chapter 28Copy pageOtherDescriptionManganese oxides : OtherWas this page helpful?YesNoPrevious282010Manganese dioxideNextIron oxides and hydroxides282110