On June 30, the 3rd China-Africa Economic and Trade Expo " Promotion Conference for African Countries " was successfully held at Changsha International Conference Centre, Hunan Province. About 450 guests attended the event, including Hunan provincial leaders, relevant persons in charge of the Hunan Federation of Industry and Commerce, persons in charge of the governments of Hunan's counterpart cities and states and relevant business leaders, scholars, representatives of the China Africa Business Council and other non-African business associations and non-African-invested private enterprises; ministerial officials of the eight African guest countries, investment promotion authorities of the eight guest countries and Botswana, African ambassadors in China, and representatives of enterprises.