Molycorp, Inc. (Molycorp) is a rare earth oxide (REO) producer in the Western hemisphere. The Company owns developed rare earth projects outside of China. The Company also owns rare earth oxide and rare metal producer in Europe. The Company is the producer of rare earth alloys in the United States. It has three operating segments: Molycorp Mountain Pass, Molycorp Tolleson and Molycorp Sillamae. On April 1, 2011, the Company acquired 90% interest in AS Silmet located in Sillamae, Estonia. On April 15, 2011, it acquired Santoku America, Inc. On October 24, 2011, it acquired the remaining 9.9% interest in Molycorp Sillamae. On August 22, 2011, Molycorp opened an office in Tokyo, Japan to provide customer support, as well as consulting and technical services to its customers in Japan. In June 2012, the Company acquired Neo Material Technologies Inc.