One of those private e-mails at issue involved an exchange between Martin and Vickie Patton, the General Counsel for the Environmental Defense Fund, regarding an arranged meeting with him.
While the majority of his fortune comes from Xiaomi, he also owns minority stakes in a number of Chinese online enterprises, including Hong Kong-listed anti-virus firm Kingsoft, private e-commerce companies Vancl and Lakala, mobile browser provider UC Web, and YY, which hit the Nasdaq exchange last Wednesday.