Many Rare Earth metals are being increasingly used in clean energy technologies and energy device components, such as, colored phosphors, lasers, catalysts and high intensity magnets. The commitment to clean energy technologies by the scientific community and the projected growth in power and transportation sectors across the globe ensure that the demand for rare earth metals and compounds would continue to escalate. This demand implies that, to ensure unhindered technological innovation, it is essential to possess secure supply chains for rare earth elements. In order to ensure secure rare earth supply and attenuate supply-demand imbalance, it is of utmost importance to look at opportunities to process intelligently, recycle and reuse Rare Earth Elements from secondary sources, such as post-consumer and manufacturing process wastes. Economic and political considerations have caused significant fluctuations in rare-earth metals availability which requires that better extraction techniques, alternative uses, recycling opportunities should all be simultaneously explored.