lundi 4 janvier 2010

Concern as China clamps down on rare earth exports - Asia, World - The Independent

Concern as China clamps down on rare earth exports - Asia, World - The Independent: "Britain and other Western countries risk running out of supplies of certain highly sought-after rare metals that are vital to a host of green technologies, amid growing evidence that China, which has a monopoly on global production, is set to choke off exports of valuable compounds."

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