What they say

The four cities will strengthen cooperation in protecting historical cultural heritage, in promoting cultural exchanges and in economy and trade so we can keep increasing our value and polish the golden brand of China's Big Four Towns.

Liu Yuelun, Party chief of Foshan, Guangdong province

We need to figure out an effective way to protect historic and cultural cities, promote their economic and social development and cultural soft power. There is enormous space for cooperation among the four cities.