On the afternoon of 6 October 2022, H.E. EAT Sophea, Secretary of State and ASEAN SOM Leader of Cambodia, chaired the ASEAN Plus Three Preparatory Senior Officials' Meeting (APT Prep-SOM), to further review the progress of the implementation of the ASEAN Plus Three Cooperation Work Plan 2018-2022 and the preparation of the 25th APT Summit to be held on 12 November 2022. The meeting further deliberate the initiatives and proposed outcome documents for the 25th ASEAN Plus Three Summit.