BHP Group experienced significant intraday volatility and a downward movement following a major project update that rattled investor confidence. The primary catalyst for the decline was the announcement of a massive cost blowout and subsequent asset impairment charge at its Jansen potash project in Saskatchewan, Canada. Following a comprehensive review of the project’s delivery schedule, the company revealed that the total investment estimate for Jansen Stage 2 has jumped from the previous projection of US$4.9 billion to US$6.9 billion. This substantial capital inflation triggered a pre-tax impairment charge of approximately US$2.3 billion, delivering a severe blow to the miner’s near-term balance sheet expectations and raising concerns…