MP Materials Corp. engages in the ownership and operation of integrated rare earth mining and processing facilities. It owns and operates the Mountain Pass facility located in the Western Hemisphere. The company holds the mineral rights to the Mountain Pass mine and surrounding areas, as well as intellectual property rights related to the processing and development of rare earth minerals. It offers neodymium and praseodymium that are rare earth elements, which in combination form neodymium-praseodymium. The company was incorporated in 2017 and is headquartered in Las Vegas, Nevada.