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The House Appropriations Committee is concerned over a possible dependence on foreign countries like China for rare earth materials used in U.S. weapon systems, according to a document reviewed by InsideDefense.com.
Rare earth materials are in a myriad of advanced weapon systems and equipment, and many lawmakers believe the United States should maintain significant domestic supplies.
Consequently, the panel wants the defense secretary to reconstitute a U.S.-based rare-earth materials supply chain, according to the document.
In March, Reps. Hank Johnson (D-GA) and Edward Markey (D-MA) introduced a "resource assessment of rare earths" bill, which directed the U.S. Geological Survey to conduct a three-year, comprehensive global mineral assessment of rare earth elements.