**5. Conclusions**

Due to the unique magnetic, luminescent, chemical, and physical properties of rare earth elements, are essential ingredients for many high-technology applications, and there still will be observed demand for them in the future. Especially since their significant use is related to the production of clean energy, which nowadays is a very important issue. The development of wind energy will continue to drive demand for REE used in wind turbine generators. Converting combustion engine cars w to electric vehicles will also increase the need for magnets and rare earth batteries. Of
