Rare earths - a group of 17 elements including lanthanides, scandium, and yttrium - are critical to modern technologies but challenging to extract sustainably. While not truly rare, their concentration in exploitable deposits is low. As demand rises, innovations like Marie Perrin’s Reecover, which recycles rare earths from electronic waste, are reshaping the supply chain toward a circular, resilient economy.

This post answers the following questions: What is EMI shielding? How is it created? Why do we need it? Then EMI materials are presented.