Mining Co. Can't Decertify Class In Dam Collapse Suit
By Katryna Perera ( March 10, 2026, 7:36 PM EDT) -- A New York federal judge on Tuesday rejected Vale SA's bid to decertify a class of investors in a suit accusing the Brazilian mining giant and its executives of concealing safety problems at its Brumadinho dam in the lead-up to a deadly collapse there, finding unconvincing Vale's new expert report showing that its securities were traded in inefficient markets....
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