Cerium, lanthanum, praseodymium, neodymium and samarium, of a purity by weight of >95% (excl. intermixtures and interalloys)
Europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium and yttrium, of a purity by weight of >95% (excl. intermixtures and interalloys)
Scandium, of a purity by weight of >95% (excl. intermixtures and interalloys)