Shares of Vale S.A. listed in the U.S. dropped 1.6% on Monday following a report of water-and-sediment overflow from a pit at its Fábrica mine in Minas Gerais that reached a third-party area. The Brazilian miner confirmed no injuries and stressed the event was unrelated to its dams. Vale kept its production forecast steady. Meanwhile, rivals Rio Tinto and BHP Group climbed between 1% and 2%.