(CNSPHOTO)

Tang Jun, China's highest-paid business executive, has come under fire for alleged dishonesty.

Fang Zhouzi, the muckraker, provided scanned pages of Tang's autobiography, My Success Can Be Reduplicated, and video clips of an interview with Tang indicating Tang had received a doctorate from the California Institute of Technology (Caltech) in 1990. Fang said, however, there were no records of Tang's graduation or dissertation in Caltech's database.

Tang rejected Fang's accusation, saying his education was misrepresented in the first version of his autobiography because of publisher's errors. He showed a doctorate diploma awarded by the Pacific Western University in the United States, currently known as California Miramar University. But Fang said the university was mentioned in a 2004 report issued by the U.S. Government Accountability Office as being unaccredited.

Tang, 48, joined Microsoft in 1994 and was appointed president of Microsoft Greater China in 2002. After leaving Microsoft in 2004, he became president of Shanda Interactive Entertainment Ltd., one of China's largest online game operators, and led the company to list on NASDAQ. Tang began to serve as CEO of New Huadu Industrial Group based in southeast China's Fujian Province in 2008, with a salary package worth 1 billion yuan ($147.6 million) in cash and stocks.