Alibaba Group Executive Chairman Jack Ma attends the opening ceremony of the fourth World Internet Conference in Wuzhen, Zhejiang province, China, December 3, 2017. (Photos: by Aly Song/ Reuters)

China's Politburo Standing Committee member Wang Huning attends the opening ceremony of the fourth World Internet Conference in Wuzhen, Zhejiang province, China, December 3, 2017. 

Apple CEO Tim Cook attends the opening ceremony of the fourth World Internet Conference in Wuzhen, Zhejiang province, China, December 3, 2017.

Cisco's CEO Chuck Robbins attends the opening ceremony of the fourth World Internet Conference in Wuzhen, Zhejiang province, China, December 3, 2017.