The world's top iron ore producer BHP Billiton on Tuesday posted a $6.4 billion loss for 2015-16, the first full-year statutory loss in the history of the Anglo-Australian company. 
The results were due to a 31% fall in revenue to 30.1 billion, as well as a multibillion-dollar writedown in the value of some of its assets, the company said. 
Last year's result saw the company make a profit of 1.9 billion. Its best annual result was profits of $23.6 billion in 2010-11. CEO of the company said that over the long-term, he remains objective over commodity prices, especially oil and Copper.