A truck exits the Chibuluma  mine in the Zambian copper belt region. Copper has seen a major turaround after falling more than 50% from a record high in 2011, trading below $5,000 a tonne during a slump in 2015-16 and again earlier this year. REUTERS
A truck exits the Chibuluma  mine in the Zambian copper belt region. Copper has seen a major turaround after falling more than 50% from a record high in 2011, trading below $5,000 a tonne during a sluShow more

Copper reaches 7-year highs as commodities enter 'super-cycle'




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