Fertiliser tycoon Pankaj Oswal has let loose on the administrators of Burrup Fertilisers, saying their mismanagement of the plant is diminishing shareholder value and could have already cost up to $US100 million in revenue.

Fertiliser tycoon Pankaj Oswal has let loose on the administrators of Burrup Fertilisers, saying their mismanagement of the plant is diminishing shareholder value and could have already cost up to $US100 million in revenue.