The offer that opened on Nov. 24 was to due expire on Dec. 22. AMF said it will soon publish a new timetable for the offer.

An appeal was launched on Dec. 2 by a group of employee shareholders asking the court to cancel AMF's aproval of the offer.

France is buying out the 16% of EDF it does not already own to take the company private and have a free hand in running it as European governments seek to secure its energy supplies.

(Reporting by Dominique VidalonEditing by GV De Clercq)