How many fairs in China each year?

There are so many fairs in China being held each year, the main fairs including:

1. Chinese Export Commodities Fair (CECF), also called Canton Fair
Web site: ..........org.cn
2. The East China Import & Export Commodity Fair (ECF)
Website: http://..........com/english/index.htm
3. China Yiwu International Commodities Fair
Website: http://en.chinafairs.org/
4. The China International Fair for Investment and Trade (CIFIT)
Website: ..........org.cn
5. The China International Consumer Goods Fair (CICGF)
http://..........com/