Protgen Ltd. is a research and development-oriented high-tech enterprise founded by returned overseas students. It is an important component of the National Engineering Laboratory for Anti-Tumor Protein Drugs and undertakes the industrial transformation of scientific research projects. The company has long been strongly supported by the National Development and Reform Commission, the Ministry of Science and Technology, Beijing, Yantai City of Shandong Province and Shenzhen City of Guangdong Province. The company is committed to the development of recombinant protein drugs, antibody drugs and in vitro diagnostic reagents with independent intellectual property rights and international competitiveness. It has established four subsidiaries in Beijing, Yantai City, Shandong Province and Shenzhen City, Guangdong Province, respectively. The project's industrialization implementation task has established a mature R&D and industrialization base, and has a series of internationally leading core proprietary technologies in protein drug preparation. The company's research and management team has a rich experience in successfully researching and developing national Class I new drugs and national Class III in vitro diagnostic reagents, and established a mature recombinant protein drug scale preparation technology platform and in vitro diagnostic kit development technology platform, in the research and development of recombinant protein drugs. Management, industrialization and other fields have rich practical experience. During the "10th Five-Year Plan" to the "Twelfth Five-Year Plan" period, Proji has successively presided over one national 863 project, three "major new drug creation" projects, five provincial and ministerial research projects, and two national 863 projects. There are 4 topics in the creation of new drugs. The company has cooperated with Tsinghua University for 12 years, and has established a highly efficient and increasingly mature technology for rapid transformation of biotechnology results in production, learning, research and use. It has obtained 58 invention patents, including 17 domestic and 41 foreign countries.