The Hebei-based company is the only one in China which commercially uses three expression systems (mammalian cells, recombinant yeast, Escherichia coli). They are a leading producer of hepatitis B vaccine, G-CSF, GM-CSF, EPO and are the country’s major producer of recombinant human serum albumin. Currently a number of antibodies, fusion proteins, cytokines, vaccines and other recombinant protein drugs are under development.

China Bio news release, February 23, 2018