Exhibit 21.1
SUBSIDIARIES OF THE REGISTRANT AS OF JUNE 15, 2010
| Subsidiary | Jurisdiction of Organization | Percentage Owned Directly or Indirectly by Molycorp, Inc. | ||
| Molycorp Minerals, LLC | Delaware | 100% | ||
| PP IV Mountain Pass Inc. | Delaware | 100% | ||
| PP IV Mountain Pass II, Inc. | Delaware | 100% | ||
| RCF IV Speedwagon Inc. | Delaware | 100% |