China controls 97% of the world's rare earth supply. Over the past four months, international prices of rare earth doubled. U.S. companies and politicians worry let headquartered in Colorado mining company Molycorp (Molycorp Minerals) have a more intense sense of urgency, ready to California Mountain Pass rare earth mine into full production.

America, Europe and China Rare Earth tripartite v. re-escalation of trade disputes, the World Trade Organization (WTO) released a report on its Web site Monday, said the organization was established expert on Chinese rare earth export policy investigation.

Japan announced in Washington with the U.S. Department of Energy, the European Commission jointly organized a two-day seminar to discuss how to stabilize the supply of rare earth indispensable high-tech products manufacturing.

United States and Europe tripartite recourse to the WTO dispute settlement body, said China for rare earths, tungsten, molybdenum export restrictions violate WTO rules and China's WTO accession protocol specifically including export quotas, export licenses and export price measures proposed to China request for consultations, the parties held a formal consultation on this but failed to reach agreement on related issues.