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In addition, he noted that some major countries outside the region "are exercising their so-called freedom of navigation by sending airplanes and warships while strengthening military cooperation with countries in the region."

The two heads of state discussed ways to push forward bilateral ties while pledging concerted effort to make the Paris negotiations a success.

"We think the President's speech was great and the resources he announced will boost implementation of the initiatives to accelerate our development," Dlamini Zuma said.

"Although the disputes cannot be fully solved in the near future, its negative effect can be managed and controlled," said Song.

China will take over the G20 presidency on Dec. 1, 2015, and a series of related meetings will be held next year, according to Wang Xiaolong, the Chinese Foreign Ministry's special envoy on G20 affairs.