CEO and President of Sina

Introduction Mr. Cao Guowei has been the CEO and President of Sina since May 26. Previously, Mr. Cao Guowei was the president and chief financial officer of the company. Mr. Cao Guowei joined Sina in September 1999 as the vice president in charge of finance and was promoted to the chief financial officer of the company in January 21. Since June 24, Mr. Cao Guowei has served as co-chief operating officer of the company, responsible for website operation, marketing and online advertising sales. Mr. Cao Guowei played a key role in building Sina into a leading Internet media and online advertising platform in China, and facilitated many important mergers and acquisitions in the company's history.

before joining Sina, Mr. Cao Guowei worked for PricewaterhouseCoopers, one of the four largest accounting firms in the world, as a senior audit manager, responsible for providing audit and business consulting services for high-tech enterprises in Silicon Valley, USA. Previously, Mr. Cao Guowei worked as a journalist in Shanghai TV Station.

Mr. Cao Guowei graduated from Shanghai Fudan University with a master's degree in journalism from the University of Oklahoma and a master's degree in finance from the School of Business Administration of the University of Texas at Austin. Mr. Cao Guowei is a member of the American Institute of Certified Public Accountants and a certified public accountant in the United States. Position of Chief Financial Officer of Sina

Introduction Mr. Yu Zhengjun has been the chief financial officer of Sina since August 27. Mr. Yu joined Sina in September 24 as Vice President of Group Control and served as Acting Chief Financial Officer in May 26. Before joining Sina, he was the auditor-general and corporate marketing controller of Adobe Systems. Yu Zhengjun worked in Cadence Design Systems and VeriFone Company as a financial audit manager. His career began with Andersen, and he has a California Certified Public Accountant certificate.

Yu Zhengjun graduated with honors from the University of Southern California with a master's degree in accounting. I graduated from the Economics Department of the University of California with a bachelor's degree with honors. He is a member of the American Institute of Certified Public Accountants and the Association of Financial Executives. Position Sina Executive Vice President Editor-in-Chief

Introduction Mr. Chen Tong has been Sina Executive Vice President and Sina.com Editor-in-Chief since February 27, and is fully responsible for the operation and content management of Sina.com..

Mr. Chen Tong has successively served as moderator of Lifang Online Sports Salon, editor-in-chief of Sina News Center, content director of Sina and executive deputy general manager of China District of Sina. Mr. Chen Tong created the Sina news model, and is recognized as an expert in online media in the industry. He is the author of The Way of Sina.

Mr. Chen Tong holds a bachelor's degree in electronic engineering from Beijing Institute of Technology, a master's degree in communication from Beijing Institute of Technology and a master's degree in journalism from Renmin University of China, and obtained an MBA from China Europe International Business School in 25. Position: Senior Vice President of Sina, Introduction to Sales Market

Ms. Du Hong was promoted to Senior Vice President of Sales Market in February 27, and was fully responsible for Sina's sales and market management.

Ms. Du joined Sina in November 1999, and successively served as the business development director and the deputy general manager of the Sina-Yahoo joint venture company Yipaiwang. In January 25, he served as general manager of Sina sales strategy management center, general manager of Sina sales department in March, and promoted to vice president of Sina sales in September. Since Du Hong was in charge of Sina's sales business, Sina's advertising revenue has continued to grow, and its concept of providing customers with online interactive marketing integration scheme has consolidated Sina's leading position in the field of online advertising.

Du Hong graduated from Harbin Institute of Technology with a bachelor's degree in 1992, and worked in companies such as BMW. In 1995, she went to the United States to study and got a master's degree. Position Sina Senior Vice President and General Manager of Sina Wireless

Introduction Mr. Wang Bin has served as Sina Senior Vice President and General Manager of Wireless Division since November 25, and is fully responsible for the operation and management of Sina wireless business.

Mr. Wang Bin has served as the general manager of Guangzhou Construction Machinery Maintenance Center and the marketing manager of Shenzhen Huading Finance Co., Ltd. In 21, Wang Bin and others founded Shenzhen NetStar Technology Co., Ltd., and entered the field of wireless value-added services. Relying on continuous product innovation and unique marketing model, NetStar Technology quickly became a leader among domestic value-added service providers (SP). Since 23, Mr. Wang Bin has been the general manager of NetStar Technology.

Mr. Wang Bin graduated from Sichuan People's Police School in 1987.