Plinbury Biopharmaceutical R&D (Shanghai) Co., Ltd. is a biopharmaceutical R&D company fully established by PRINJJOHNSON BIOPHARM INC. from the United States, founded in 2009. There are nearly 100 employees, with over 70% holding a master's degree or above. The company has a research and development site of 3000 square meters and nearly 50 million yuan worth of research and development equipment.