SAO PAULO, Dec 23 (Reuters) - Brazilian iron ore miner Vale SA VALE3.SA said on Wednesday its Samarco joint venture with BHP BHP.AX had begun the gradual restart of operations, after a deadly dam failure in 2015.
Vale said the operations had restarted at a production level of 7-8 million tonnes annually, or about 26% of Samarco's full capacity.