
These are the world's 40 biggest mining .
PwC's latest report into the performance of the world's 40 largest mining companies shows just what a watershed year 2015 was. The management consultants' Mine 2015 report shows the top 40 companies suffering their first collective net loss in history ($27 billion), a decline in collective market capitalization of 37% (to below half a trillion dollars from a peak of $1.6 trillion in 2010 ...