Start-up tech firms are racing to transform the way rare earths are refined for the clean energy transition, a push aimed at turbocharging the West's expansion into the niche sector that underpins billions of electronic devices. The existing standard to refine these strategic minerals, known as solvent extraction, is an expensive and dirty process that China has spent the past 30 years mastering. MP Materials, Lynas Rare Earths and other Western rare earths companies have struggled at times to deploy it due to technical complexities and pollution concerns. |