The main factors affecting China's Southeast Asia include

Cultural exchange, immigration and trade between China and India.

The main functions of ASEAN are: (1) promoting economic growth, social progress and cultural development in the region in the spirit of equal cooperation; (2) Follow the principles of justice, state relations and the Charter of the United Nations to promote peace and stability in the region; (3) Promoting cooperation and mutual support on economic, social, cultural, technical and scientific issues; (4) mutual support in education, occupation and technology, as well as administrative training and research facilities; (5) more effective cooperation in making full use of agriculture and industry, expanding trade, improving transportation and improving people's living standards; (6) Promoting the study of Southeast Asian issues; (7) Maintain close and mutually beneficial cooperation with international and regional organizations with similar purposes and objectives, and explore closer ways of cooperation.

As China's trading partners, we share common interests, and China's influence on ASEAN should not be underestimated.