The Australian miner released risk assessment results in response to pressure from a group of investors that requested information on facilities controlled by nearly 700 mining companies be disclosed.
In April, ethical investors working on a global standard for tailings dams had written to 683 listed resource companies, including major miners, asking for information to be made public within 45 days about every facility they control.
The race to mine Guinea's iron ore has started although the focus is not on its giant Simandou deposits but on smaller finds whose output could be transported via Liberia if ArcelorMittal shares its railway.
Billionaire Beny Steinmetz’s mining company has sought bankruptcy protection in the US, two months after losing a $2 billion arbitration award to Brazilian mining giant Vale.