On May 2, 2009, Mr.CHENG Peng, the general manager of Asambly Chemicals, made a report on the company's annual performance to Dr. HONG Yinxing, Chancellor of Nanjing University and other four Ph.D. Supervisors and leaders from the School of Business(LIU Houjun, LIU Zhibiao, ZHANG Erzhen, ZHAO Shudong). Mr.CHENG has been the student of these five professors since 1989 for nearly 20 years.