Dr. Chang is the Chairman of Medigen Biotechnology Corporation (Medigen), with an MD degree from National Taiwan University College of Medicine and a Ph.D. degree in Laser Medicine from the University College London of London University, UK. Dr. Chang is a Urological surgeon by training, and was formerly a professor in Urology, and the chairman of Faculty of Medicine at Tzu-Chi Medical College, Taiwan. He changed the career track to biotech business in 2000, and became the CEO and Chairman of both Medigen and Medigen Vaccine Biologics Corp. (MVC). Medigen is a publicly listed company in Taiwan, focusing on monoclonal antibody discovery, cancer drug developments, and molecular diagnostic kits/devices manufacturing and marketing. MVC on the other hand is a subsidiary of Medigen, devoted to cellbased technology for vaccine production. MVC is constructing a PIC/s certified vaccine manufacturing plant for pandemic/seasonal flu vaccines and EV71 enterovirus vaccines in Taiwan. The state-of-the-art cell-based vaccine production plant is planned to go through EU's PIC/s GMP inspection and start operation in 2016.