Tehran hosts 4th meeting of OICOA member states cexpress May 13, 2025 0 World TEHRAN, May 13 (MNA) – The 4th assembly of Organization of Islamic Cooperation Ombudsman Association (OICOA) was held in Tehran’s Esteghlal Hotel on Tuesday with the participation of Judiciary Chief Hojatoleslam Gholamhossein Mohseni Ejei. []