More than half of them belong to Vale, whose Córrego do Feijão mine’s tailings collapsed last year, releasing a torrent of mining waste that killed about 270 people.
Iron ore drops to 12-week low ahead of Beijing decision whether to bail out giant iron ore, steel trader and Rio Tinto JV partner on the brink of default.
According to research house Wood Mackenzie, the need for investment is becoming desperate in zinc and lead and will be a major issue in the copper sector in the next few years.