Article R464-20 of the French Commercial code
The appeals provided for in Article L. 464-7 shall be brought before the court of appeal by way of summons to a hearing previously indicated by the first president or his delegate. On pain of nullity, the summons shall contain, in addition to the particulars prescribed for bailiff’s documents, the subject of the action with a statement of the grounds. Under the same penalty, a copy of the contested decision…