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CSN Mine Expansion May Slow on Preservation Effort, Valor Says

Dec. 16 (Bloomberg) -- Cia. Siderurgica Nacional SA may have to slow expansion at its Casa de Pedra iron-ore mine as authorities seek to protect an area near the mine as a historical site, Valor Economico reported, citing Anderson Cabido, the mayor of Congonhas, where the mine is located.

To contact the reporter on this story: Peter Millard in Rio de Janeiro at

To contact the editor responsible for this story: Dale Crofts at

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