On Tuesday, a flag-raising ceremony was held for Iran in Beijing, marking the nation's official membership in the Shanghai Cooperation Organization (SCO), the ninth member state to join the bloc.
SCO Secretary-General Zhang Ming and Iran's Ambassador to China, Mohsen Bakhtiar, were among the officials who attended the ceremony.
Last September, Iran signed a memorandum at the SCO summit in Samarkand on its obligations to join the SCO.