According to a survey by Suzhou’s HSMap publishing house, there are mainly 5 companies active in the field: 1. FivePlus Molecular Medicine Institute, Beijing, with a focus on R&D, production and technical services of viral vectors, virus vaccines, virus-like particles, recombinant proteins and cell products based on serum-free mammalian cell culture, 2.XiYuan Biotechnology, Shanghai, with a novel Cancer Targeting Gene-Viro-Therapy based on an oncolytic virus, and 3. Sibiono, Shenzhen, with a focus on adenovirus-based gene therapy in cancer,

China Bio news release, January 19, 2018