Molycorp completes commissioning of rare earth cracking facility

Greenwood Village, CO (December 19, 2013) — Molycorp, Inc. (NYSE: MCP) (“Molycorp” or the “Company”) today announced that the final unit of its multi-stage Cracking Plant at Mountain Pass has now completed commissioning and is operational.

The Cracking Plant is part of a multi-stage chemical process designed to increase the facility’s rare earth recovery rates, boost production throughput, and contribute to lower unit production costs.  Company officials said that the Cracking Plant, and other plants that comprise Molycorp’s new Mountain Pass facility, will continue to be optimized to increase operating efficiencies and to reduce costs.