Compounds, inorganic or organic, of rare-earth metals, of yttrium or of scandium, or of mixtures of these metals:

2846.10.00Cerium compounds 2846.10.00.10Cerium oxides 2846.10.00.50Other 2846.90Other: 2846.90.20Mixtures of rare-earth oxides or of rare-earth chlorides 2846.90.20.05Containing lanthanum as the predominant metal 2846.90.20.15Containing yttrium or scandium as the predominant metal 2846.90.20.40Other 2846.90.20.82Containing yttrium or scandium as the predominant metal 2846.90.20.84Other 2846.90.40.00Yttrium bearing materials and compounds containing by weight more than 19 percent but less than 85 percent yttrium oxide equivalent 2846.90.80Other 2846.90.80.70Containing lanthanum as the predominant metal 2846.90.80.75Other 2846.90.80.90Other