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 1,000-km (620-mile) rail line is used by miners including Glencore, MMG Ltd and South 32 to carry zinc and lead concentrate from the Mt Isa region.
