May 31 (Reuters) - Brazilian miner Vale said on Wednesday night it had entered into a binding deal on the parameters for a planned debt restructuring at Samarco , a joint venture it shares with miner BHP Group .

Vale said it had agreed the deal with Samarco, BHP Billiton Brasil and certain creditors. (Reporting by Roberto Samora and Peter Frontini; Writing by Carolina Pulice; Editing by Sarah Morland)