The judicial composition proceedings named “Konkordato” in the Turkish legal systemis based upon a deed of arrangement which involves generally a reduction of debts and/ or a postponement of payments. The proposed arrangement will be binding to some of thecreditors after judicial confirmation which is a matter of non-contentious jurisdiction. Howthe binding effect of the “Konkordato” expires ex nunc for all of the creditors or one or morecreditors is foreseen within the Articles 308e and 308f of the Turkish Debt Enforcementand Bankruptcy Act. Any creditor subject to this arrangement is entitled to file a petition forreversal of composition proceedings for all of the creditors when the judicial confirmationunlawfully acquired by the debtor. Besides this, a creditor to whom is not paid according to thedeed of arrangement in due time and amount may but only for himself request not to subject toterms of judicially confirmed composition. Thus, the judicial confirmation of “Konkordato” asa matter of non-contentious jurisdiction could be because of these reasons annulled or alteredby the court. The legal nature of the petition for reversal of judicial composition proceedingshall be considered as such.