H.E. Mr. Bilawal Bhutto Zardari, Minister of Foreign Affairs of Pakistan.
H.E. Mr. Aftab Ahmad Khokher (Ambassador, Permanent Representative of Pakistan), Chair of the G-77 for 2023.
Ms. Ghada Fathi Waly, Director General of UNOV and Executive Director of UNODC.
Mr. Gerd Müller, Director General, UNIDO.
Mr. Hua Liu, Deputy Director General, Head of the Department of Technical Cooperation, IAEA.
Mr. Junan Zhang, Director Legal and External Relations, CTBTO.
Ms. Anna Joubin-Bret, Secretary, UNCITRAL.
Mr. Niklas Hedman, Acting Director, UNOOSA.
H.E. Mr. Azzeddine Farhane (Ambassador, Permanent Representative of Morocco), Chair of the G-77 for 2022.
H.E. Mr. Alejandro Solano (Ambassador, Permanent Representative of Costa Rica), Chair of the G-77 for 2021.
H.E. Ms. Nozipho J. Mxakato-Diseko (Ambassador at Large for Peace and Security, South Africa), Chair of the G-77 for 1998.
Amb. and G-77 Chairman Aftab Ahmad Khokher unveiled with the Director General of UNIDO the commemorative plague offered by Pakistan on the occasion of the 25th anniversary of the Vienna Chapter.
Mr. Johann Spitzer, Deputy Head of Mission, Permanent Mission of Austria to the UN (Vienna), IAEA, UNIDO, CTBTO.
H.E. Mr. Ambassador Li Song, Permanent Representative of China to the United Nations Vienna
Mr. Flavio MEDINA, Counsellor, Permanent Mission of the Dominican Republic, CTBTO Task Force Coordinator for G-77
Ambassador Stephan Klement, Head of Delegation to the International Organisations in Vienna, EU Permanent Representative to the UN Organisations in Vienna, IAEA and CTBTO
Mr. Gerd Müller, Director General of UNIDO with Annemarie Heuls, former G-77 externa relations Officer.