No 7 Jack Ma, founder of Alibaba Group Holding Ltd.
Net worth: $22.7 billion
Jack Ma speaks during a meeting at Taobao City, Alibaba's new office park, in Hangzhou city, Zhejiang province, May 27, 2014. [Photo/China Daily]
Summer Davos 2015
Zhanjiang on Maritime Silk Road
CEO roundtable: 'new normal' & challenges