Liquidator's power to seek cooperation directs specified persons to assist in information collection after reasonable efforts fail. Regulation 9 authorises the liquidator to apply to the Adjudicating Authority for a direction that specified persons (including officers, auditors, employees, promoters, partners, interim or resolution professionals, previous liquidators, and those in possession of corporate debtor property) cooperate in collecting information and providing access necessary for liquidation. Such an application is permissible only after the liquidator has made reasonable efforts to obtain the information or access from the person and failed to do so.