MP vs PLM

MP Materials Corp.

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.

Polymet Mining Corporation

PolyMet Mining Corp., through its subsidiary, Poly Met Mining, Inc., explores for and develops natural resource properties. Its primary mineral property is the NorthMet project, a polymetallic project that hosts copper, nickel, cobalt, gold, silver, and platinum group metal mineralization covering an area of approximately 4,300 acres located in northeastern Minnesota, the United States. The company was formerly known as Fleck Resources Ltd. and changed its name to PolyMet Mining Corp. in June 1998. PolyMet Mining Corp. was incorporated in 1981 and is headquartered in Saint Paul, Minnesota.