What's going on with cobalt?

THE cobalt price has risen more than 35% in the past four weeks to around $US19 per pound, which given its typical volatility, is itself not particularly noteworthy. However, the timing of the rise is, according to Citigroup.

What's going on with cobalt? What's going on with cobalt? What's going on with cobalt? What's going on with cobalt? What's going on with cobalt?

The broker notes that the northern summer is usually the period when traders and consumers are typically on a break, and other than pointing to some broad possibilities, Citigroup is at loss for an

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