The "scope of work" needed to iron out the money-haemorrhaging company's financial reports "has expanded", the US renewables giant told investors on Wednesday morning.
SunEdison shares fell by nearly 20% in pre-market trading on the news, to $1.67.
Specifically, SunEdison blames "deficient information technology controls" for the delays, the result of "newly implemented systems".
Likewise, SunEdison says an investigation into its board of directors stemming from allegations regarding "the accuracy of the company's anticipated financial position" has not yet been concluded.
