We also own a number of patents for our core technologies, including antibody engineering and humanization technologies, efficient expression vector construction technologies, efficient clone screening technologies, as well as a proprietary R&D animal model. Our R&D activities are carried out by three core teams: basic R&D, clinical trials, and industrialized good manufacturing practices ("GMP"). The operations, design, and construction needs of these three core teams are supported by an assisting engineering team. Our R&D teams consist of professionals who have extensive industry experience in biologics R&D and have gained valuable work experience in global pharmaceutical companies. Employees in our R&D teams possess strong academic backgrounds from leading institutions in immunology, molecular biology, oncology or monoclonal antibody development.