On 24 September 2026, strengthening regional cooperation as a contribution to effective multilateralism, enhancing connectivity, and supporting Ukraine were among the key issues discussed at the "CEI Ministerial Meeting on Regional Cooperation", held in New York under the Romanian CEI Presidency on the margins of the 81st Session of the United Nations General Assembly.

The CEI–Executive Secretariat (CEI-ES) joined national maritime authorities and European agencies in Koper, Slovenia, on 23–24 September for POLex 2026, the second international marine pollution response exercise carried out within the Interreg IPA ADRION ASAP – Adriatic Sensitive Areas Protection mechanism project.

On 24 September, the Italian Ministry of Foreign Affairs and International Cooperation, together with the European Bank for Reconstruction and Development (EBRD) and the Central European Initiative (CEI) Executive Secretariat, hosted at the Italian Embassy in Belgrade the presentation of the latest activities and results of the CEI Fund at the EBRD, with a particular focus on its operations and impact in Serbia.

On 23 September, Secretary General Franco Dal Mas participated in the Sixth Summit of the "International Crimea Platform", held in New York on the margins of the 81st Session of the United Nations General Assembly.

On 23 September in Tirana, the Italian Ministry of Foreign Affairs and International Cooperation, the European Bank for Reconstruction and Development (EBRD) and the CEI-Executive Secretariat (CEI-ES) presented the latest activities and results of the CEI Fund at the EBRD, with a particular focus on its operations and impact in Albania.