Brazilian mining group Vale is to decommission all of its upstream tailings dams and has presented its plans to do so to the Brazilian authorities after the fatal collapse of the Córrego de Feij?o iron ore mine No. 1 tailings dam in Minas Gerais last Friday, the company said Tuesday. Last Friday's disaster killed at least 65 people and has left nearly 300 people unaccounted for, with most of them feared buried in the mud that spewed from the waste dam.
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