China's representative at the summit is President Hu Jintao. He has already held talks with the leaders of South Korea and the United States.

President Hu Jintao and his South Korean counterpart Lee Myung-bak discussed bilateral ties and issues of common interest.

Since the bilateral strategic partnership of cooperation was established in 2008, Sino-South Korean cooperation has been increasingly strengthened in various areas, including politics, the economy and culture.

The two countries have also maintained good coordination and cooperation in tackling major international and regional issues.

President Hu Jintao also met with U.S. President Barack Obama, on the sidelines of the G20 Summit.

The Chinese leader says China is willing to strengthen dialogue, exchanges and cooperation with the United States, to further promote positive, cooperative and comprehensive relations.

China believes good Sino-U.S. ties are not only in the interests of both countries, but also benefit world peace, stability and development.

During the meeting, Obama pointed out that China-U.S. relations have become stronger over the last few years. As the two major world economies, Obama says China and the US have an obligation to ensure strong, balanced and sustainable growth.

This is the third meeting between Hu and Obama in eight months. They met in Washington in April, and in Toronto, Canada, in June.

President Hu has also held talks with the Russian President Dmitri Medvedev, to discuss the development of the China-Russia strategic partnership on coordination.