Jack Ma, chairman of China's largest e-commerce firm Alibaba Group, attends a corporate event at the company's headquarters on the outskirts of Hangzhou, Zhejiang province, April 23, 2013. Ma will step down as the head of Alibaba on Friday. [Photo/icpress.cn]

A photograph of Jack Ma with Yahoo co-founder Jerry Yang at the Great Wall is shown during a joint news conference regarding Alibaba`s purchase of Yahoo`s China operations in Beijing Aug 11, 2005. [Photo/icpress.cn]