Zinc deficit is unsustainable over the longer term

The zinc market has tightened sharply, leading prices to surge, but capacity will gradually expand

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Mining optimism may not be fulfilled in Peru

The government hopes to encourage new mining investments despite a range of obstacles

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Negotiating a meaningful surrender of Colombia’s largest non-state armed group will take time, which is in short supply

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The president’s second choice for environment secretary has hurdled the ministerial confirmation process

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Public consultation could be the solution to Moreno’s problems, but referendum results are notoriously unpredictable

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Scattered evidence hints at a possible end to the long, slow decline of US labour unions

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The two Andean countries have the highest rates of informal employment in South America

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The challenges diamonds face, notably credit limits, oversupply, breakages and synthetics, will not be easy to overcome

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While Uganda's parliament contests presidential age limits, a proposed land reform may have equally far-reaching effects

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A no-confidence vote has prompted cabinet changes, which may appease the opposition-dominated Congress

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