Shares in Rio Tinto have slumped as much as 23 per cent in trade today, as the miner launches its $US15.2 billion ($A19 billion) rights issue, one of the world's biggest capital raisings.
Shares in Rio Tinto have slumped as much as 23 per cent in trade today, as the miner launches its $US15.2 billion ($A19 billion) rights issue, one of the world's biggest capital raisings.