Yantai Chenghai Biotechnology Co., Ltd. is a biotechnology innovative enterprise established by Dr. Qingwen Sun. The company relied on the technology platform of Fudan University and Shanghai Jiao Tong University, and worked on the industrialization transformation of the achievement in biomedical field and did research on independent innovative projects. The business direction of the company is the development, production and sales of in vitro diagnostic products such as major infectious disease and tumor. The company had developed diagnostic products of tuberculosis，Gastric cancer and liver fibrosis, and the sales would be above 50,000,000 Yuan within 5 years. Dr. Qingwen Sun, the founder of the company, is rich in experience of research and management of enterprise. The core group of the company consisted of several doctors, masters and professors. Dr. Sun had founded Shanghai Fu Meng Gene Biotechnology Co. Ltd. and Shanghai Cheng Hai Biotechnology Co. Ltd., and had gained well economic benefit and social benefit.