BHP Billiton has seen full year profits dive a staggering 30 per cent as the end of the resources boom continues to wreak havoc with the bottom lines of leading mining concerns.

The world’s biggest mining company fell well short of consensus expectations with net profits of USD$10.9 billion ($12.3 billion) during the last fiscal year, for a year-on-year dive of 29.5 per cent. Revenues declined 9 per cent, enervated by the protracted slump in spot prices for key commodities such as…