Pu-An Biotechnology

Pu-An Biotechnology is a biopharmaceutical company based in Shanghai, China, specializing in the development and large-scale manufacturing of animal-free recombinant proteins. The company's core focus is the production of recombinant human serum albumin (rHSA) utilizing a proprietary Pichia pastoris yeast expression system. This technology provides a safe, viral-free alternative to traditional human plasma-derived albumin, addressing critical global supply shortages in the blood products market. Pu-An develops rHSA for both therapeutic clinical applications, such as treating hypoalbuminemia, and as a high-purity excipient for vaccine and drug formulations. The company's advanced fermentation and purification processes allow for medical-grade protein production at a commercial scale.