"Everybody else will have to do their share; they cannot leave this issue to China alone," Cui said

"Nowadays all the primary schools in my country have made Chinese-language courses available to students," said Cho, who was believed by some local media to have given the strongest push to the achievement

"Some media claim that the Chinese investment would cause pollution in the host country," he said

He also said that he would seek public support for a tougher stance over the Korea Peninsula issue

China's five-year plans provide a purpose and focus, and any developing country needs such plans to have a long-term future