1.Where the counterparty identified pursuant to Article 3 in a derivative report undergoes a corporate restructuring event resulting in a change of its LEI, that counterparty or the counterparty to which the new LEI pertains, or the entity responsible for reporting on behalf of either of those counterparties pursuant to Article 9(1a) to (1d) of Regulation (EU) No 648/2012, or the entity to which either of the counterparties delegated the reporting pursuant to Article 9(1f) of Regulation (EU) No 648/2012, shall notify the trade repository to which the counterparty that underwent a corporate restructuring event reported its derivatives about the change and request an update of the LEI in the derivatives concerned referred to in points (a) and (b) of Article 2(2) at the date of the corporate restructuring event resulting in a change of LEI or contracts reported after that date.