Miner will pay a special dividend worth $4 billion, or $2.43 cent a share, as it recorded its highest annual underlying earnings in the last five years.
The International Council on Mining and Metals (ICMM), a London-based industry group representing 27 companies, is setting an independent panel of experts to develope a global standard for tailings facilities to be enforced to its members.
The decision was made in light of a possible failure of five dams at both complexes, which are located in Minas Gerais, the same state where the Feijão mine dam collapsed last month.
The companies envision an investment from Glencore that will help fund construction in exchange for offtake of production of four million tonnes of iron ore a year.