HJB - Your Trusted Biologics CDMO Partner

HJB, CDMO, biologics, HJB Bio, hjbbio, China CDMO, 杭州奕安济世, Just Bio, Just biotherapeutics, HJB bio, HJB China, Hangzhou HJB

HJB - Your Trusted Biologics CDMO Partner


Pilot Plant

HJB’s pilot plant (>300 sqm) provides clients with the option to produce large scale material (up to 1000 g) for extensive formulation studies, viral clearance, toxicology studies, etc.

Our pilot plant can produce material from both fed batch or perfusion reactors. Additionally, we offer a manual Drug Product fill for up to 1000 vials a day.


200L SUB for fed batch or perfusion

Repligen’s ATF6 for perfusion mode

GE’s AKTA Process

Single-Use Mixers 500 L

50 L Wave Single-Use

MilliporeSigma TFF system

Invitrogen Neon——transfection system