Incheon, South Korea; formed in 2002 by VaxGen and three Korean partners: Nexol Corp., KT Corp., and J. Stephen Co. Ventures Ltd.; VaxGen provides technology, know-how and training while Korean partners provide funding; VaxGen is the single largest stockholder (32%); Celltrion has four 12,500-liter bioreactors online and adding 50,000 liters of capacity by 2010.