Report summaryThe Viga mine is located near the town of Congonhas in Minas Gerais state, roughly 80 kilometres south of the company's Belo Horizonte headquarters. The operation is situated in close proximity to CSN's Casa de Pedra complex and Vale's Fabrica plant. Ore from Viga undergoes a fairly rigorous beneficiation process because of the low raw ore grade and high level of impurities, particularly silica, found in the raw ore. This ultimately gives rise to a comparatively high processing cost.
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