It gathered high-level representatives from nearly 100 countries and heads of United Nations agencies.
The event held under the theme "Leaving No One Behind".
The summit aims to promote South-South cooperation in the fields of trade, investment, sustainable development, climate change, poverty elimination and digital economy.
The South Summit is the supreme decision-making body of the Group of 77 (G77).
It was established in June 1964.
Since the 1990s, China has been coordinating and cooperating with the G77 through the "G77 and China".
Although it maintains its identity as G77+China, the forum is currently made up of 134 member countries.