The company had announced a new financing plan on July 28, but it announced on Tuesday it would have to seek additional funds to meet German legal requirements.

A new round of talks with creditors has so far yielded no result and shares have plunged.

"Royal Imtech and Imtech Germany are evaluating the current situation and its consequences and are considering all options," it said in a statement on Thursday.

"Royal Imtech will update the market as soon as possible more specifically on the consequences of these developments."

(Reporting by Toby Sterling; Editing by Biju Dwarakanath)