BHP may mothball $2.6 billion Jansen potash project if prices remain weak

World’s largest miner BHP Billiton (ASX, NYSE:BHP) (LON:BLT), the company behind the massive $2.6 billion (CAD $3.4 billion) Jansen potash project in Canada’s Saskatchewan province, may place it in the back burner if prices for the fertilizer ingredient don’t pick up...