Lots of work. Rongchang Biotech was established in 2008 and is an innovative pharmaceutical company. Rongchang Biotechnology has been recruiting people because there is a lot of work and a small staff, which requires overtime and a heavy workload. Rongchang Biotech focuses on the field of therapeutic antibody drugs such as antibody drug conjugates, antibody fusion proteins, monoclonal antibodies and bisAbs.