Some large shareholders are pushing the miner to exit immediately while other investors want a slower exit, to ensure the mine is wound down responsibly.
How BHP, which faces about $1 billion in clean up costs at Mt. Arthur alone, divests could be a template for other miners, including Glencore Plc and Anglo American who are also mulling ways to offload coal assets.
BHP spin-off South32 agreed this month to pay up to A$250 million ($194.70 million) to smooth the sale of its South African thermal coal business, partly funding environmental clean-up costs over a decade.
“The best thing that BHP could…