Carnegie Clean Energy, which is seeking to raise up to $11.5 million after going into voluntary administration earlier this year, has issued a supplementary prospectus that tones down some of the key claims it made to investors only six weeks ago.

Carnegie Clean Energy, which is seeking to raise up to $11.5 million after going into voluntary administration earlier this year, has issued a supplementary prospectus that tones down some of the key claims it made to investors only six weeks ago.