Molycorp is a US mining and technology company that produces and markets molybdenum and rare earth products. As a leader in rare earth technology development, Molycorp’s expertise has provided breakthroughs in industries as varied as military, computing and automotive. Headquartered in Englewood, CO, the company maintains a world-class molybdenum mine and milling operation in Questa, New Mexico. As the leading western supplier, Molycorp markets rare earth materials from their mining operation in Mountain Pass, California.In addition, Molycorp maintains a joint venture with Sumitomo Metals, called Sumikin Molycorp, which