Why smartphones are no longer driving the search for 'blue gold'
Batteries for mobile phones led the first cobalt boom in 2008
Another factor was that several processors - largely in China and Africa - were hoarding cobalt in the hope of making a killing as the price rose. At the heart of this argument is the precarious nature of cobalt's supply. It is an element that occurs nowhere on earth in a"free" form, but which has to be chemically prised from copper or nickel using acids and heat.
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