X0101 EFFECT 33 LIVE 2013-02-07 16:00:00

S-4

0001489137 Molycorp, Inc. 333-185126 0001562227 Molycorp Metals & Alloys, Inc. 333-185126-05 0001562261 Molycorp Minerals, LLC 333-185126-04 0001562328 PP IV Mountain Pass Inc. 333-185126-03 0001562329 PP IV Mountain Pass II, Inc. 333-185126-02 0001562332 RCF IV Speedwagon Inc. 333-185126-01