Carbon fiber manufacturing is very concentrated: six companies produce nearly 93% of the world’s supply. The world's largest producers typically make about $10–20 million per million pounds of annual capacity, or roughly $6,500 per composite autobody. The five latest capacity expansions announced by these companies by mid-2011 account for 35.6 million pounds of added capacity over the next four years.
Warren, Dave. 2010. Low Cost Carbon Fiber Overview. Oak Ridge National Laboratory. link