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"Credibility is the most important factor for the used car sector to see sustainable development," said Shen.

"Corporations are diversifying their investments by increasing RMB bonds, instead of focusing on investment in US dollar bonds," said Ivan Chung, head of China credit research and analysis at Moody's Investors Services.

"Chinese cities have been innovated in a way that has never been done anywhere in the world. There were no models and this cannot be learned from the West. The West has never done anything similar－to accommodate such a large migrant population in such a short time."

"Clean energy utilization and energy storage-two key themes of the conference-clearly have a key role to play," said Ding.

"Countries participating in the Belt and Road Initiative can increase exchanges and cooperation to promote standardization in agriculture and food safety, and promote their trade among the nations involved."