5E Advanced Metals files U.S. patent for boron mining, production technology

5E Advanced Materials filed an omnibus application with the United States Patent and Trademark Office for a proprietary, closed-loop in-situ leach mining and production process that has lowered 5E’s operating costs, reduced its environmental footprint, and, if granted, will create meaningful barriers to competitors seeking to replicate the Company’s ISL technology. The patent application includes 167 claims covering 5E’s mining process and production for boric acid, gypsum, sodium chloride, as well as the management of metal impurities. Over the coming weeks, 5E intends to file several additional standalone applications.