Mr. DUAN Yongji, appointed in March 1992, is the Chairman and the Chief Executive Officer of Stone Group Holding Limited and the Chairman of Stone Group Corporation. Mr. DUAN graduated from Tsinghua University and was a research student at Beijing Aeronautic College. He held a senior position at Chinese Aeronautical Research 621 Laboratory from 1982 until 1984. In 1995, Mr. DUAN was acclaimed "Beijing Electronics Industry Outstanding Entrepreneur". In 1996, Mr. DUAN was acclaimed "The Top 20 Outstanding Managers" in Industrial System, Beijing. In 2000, Mr. DUAN was acclaimed "2000 Bauhinia Cup Outstanding Entrepreneur Awards". From 1999 to 2007, Mr. DUAN was also the director of Beijing Centergate Technologies (Holding) Co., Ltd., a company listed on Shenzhen Stock Exchange and from 2003 to 2008, acted as an associate director and the vice president in sequence of SINA Corporation, a company listed on NASDAQ, United States of America.

Mr. SHI Yuzhu, appointed in August 2004, is the Executive Director of the Company. On 1 March 2007, Mr. SHI resigned as Chief Executive Officer and but has still acted as the Executive Director of the Company. Mr. SHI graduated from Zhejiang University in 1984 with a Bachelor degree in Mathematics. He was also a research student from Shenzhen University in Software Science in 1989. Mr. SHI began his career in 1989 by engaging in software development, and later established Giant Group. In 1993, he was commended as an Outstanding Scientific Entrepreneur of Guangdong Province. In 1994, Mr. SHI was elected as one of the China's Top 10 Reform Celebrities. In late 1997, he embarked on a new business venture with the development of Naobaijin, a technologically-advanced healthcare product. Naobaijin won the championship of nationwide sales of healthcare products in China for 4 consecutive years starting from 2000. In 2001, Mr. SHI was honored as one of the CCTV Chinese Economic Leaders and the Top 10 Chinese Financial Figures. He launched another innovative healthcare product GoldPartner in 2002. In 2004, GoldPartner and Naobaijin were ranked No. 1 and No. 2 on the list for nationwide sales of healthcare products. He was recognized as an Outstanding Scientific Entrepreneur for Private Entities in China and received the Bauhinia Cup Awards for Outstanding Entrepreneur. Mr. SHI is also the director of China Minsheng Banking Corp., Ltd., a company listed on Shanghai Stock Exchange.

Mr. SHEN Guojun, appointed in December 1992, is an Executive Director of the Company. He is also the Chairman of Beijing Stone Investment Company Limited (“Stone Investment”). Mr. Shen graduated from Beijing University where he held a teaching post until 1965. During the period between 1965 and 1984, Mr. Shen had several senior positions in National Science Research Ninth Council and Chinese Science College Science Technology Office.

Mr. ZHANG Disheng, appointed in May 2003, is an Executive Director of the Company and the President of Beijing Stone New Technology Industrial Company Limited (“Beijing New Technology”), a subsidiary of the Group, and is also the President of Stone Investment. Mr. Zhang graduated from Beijing Economics College and obtained a Master degree from Ryulsu Kaizai University, Japan. Mr. Zhang held a senior position in Beijing Economics College Economic Technology
Development Company prior to joining the Group. Mr. Zhang is responsible for the business management of the Group.

Mr. CHEN Xiaotao, appointed in May 2001, is an Executive Director of the Company. Mr. Chen was the President and Chief Operating Officer of the Company from May 2001 to December 2004. Mr. Chen is responsible for the investment in media-related business of the Group. He is also a director of SINA Corporation.

Ms. LIU Wei, appointed in March 2004, is an Executive Director of the Company and the General Manager of Shanghai GoldPartner Biotech Co., Ltd., a subsidiary of the Group. Ms. Liu was the general manager of Shanghai Giant Biotech Co., Ltd. prior to joining the Group.