Founder and executive chairman of Chinese e-commerce company Alibaba Group Jack Ma poses for the media at the Alibaba booth during the opening day of the CeBIT technology fair in Hanover, central Germany, on March 16, 2015. More than 3,400 exhibitors from 70 countries will present their products and services during the show running until March 20, 2015. China is the CeBIT partner country in 2015. AFP PHOTO / TOBIAS SCHWARZ