BHP Billiton (BHP.US) announced a $2.3 billion write-down of its Jansen potash mine: the cost of the second phase expansion has surged to $6.9 billion, with production expected to begin by the end of 2031.

The Zhixuan Finance APP noticed that global mining giant BHP Billiton (BHP.US) will make a $2.3 billion asset impairment provision for its massive Jansen potash project, following a series of recent cost overruns and delays in the expansion project in Canada.