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China released new interim measures Friday tightening controls on mining and processing of rare earths that are used in many high-tech products including electric vehicles, smartphones and fighter jets.
The rules released Friday by the Ministry of Industry and Information Technology apply both to rare earths originating in China and those that are sent to China for refining.
They require companies to comply with quotas for various minerals. Companies must have government approval to deal with rare earths and must accurately report the amount of rare…
