On 29 April 2025, His Excellency Nong Sakal, Under Secretary of State of the Ministry of Foreign Affairs and International Cooperation, had a meeting with group of Deputy Heads of Missions accredited to Cambodia from the Embassy of Japan, Republic of Korea, France, Germany, United Kingdom and the United States of America.

The meeting mainly discussed on matters pertaining to Non-Proliferation regime and necessary preparation for the upcoming 3rd Session of the Preparatory Committee for the 11th Review Conference of the Parties to the Treaty on the Non-Proliferation of Nuclear Weapons Cluster I (Nuclear Disarmament).