BHP: Expansion cost of the Jansen potash mine site jumps to $6.9 billion, expected to start production by the end of 2031.

BHP Billiton will make a $2.3 billion asset impairment provision for its large Jansen potash project, after the company announced a series of cost overruns and delays in the expansion project in Canada. After assessment, the company said on Thursday that the cost of the second phase expansion project is now expected to reach $6.9 billion, higher than the previously estimated $4.9 billion. The project is expected to start production by the end of 2031.