Rare Earth Oxides is a combination of 15 lanthanide oxides, the atomic number in the periodic table of elements of which range from 57 to 71, and the elements Scandium(SC)and Yttrium(Y), whose chemical property are similar to lanthanide ones

Rare Earth Metals are Rare Earth elements in the form of metal, whose gloss are between those of silver and iron. They have strong chemical activities. Basically, REMs are restored from Rare earth compounds. They are usually divided into two parts: Mixed REMs and Simpex REMs.

In the wake of the extension of technology and rare earth application markets, there emerge newer and more practical mating products with Rare Earth elements. These elements are still taking rare earth elements as their very raw materials.