Dipharma Francis SRL (Italy)
Erregierre SpA (Italy)
Fujimoto Chemicals (Japan)
New Zealand Pharmaceuticals Limited (New Zealand)
Panjin Hengchanglong Pharmaceutical (China)
PharmaZell GmbH (Germany)
Retrophin Inc. (US)
Showa Denko KK (Japan)
Suzhou Tianlu Biopharmaceuticals Co. Ltd (China)
and Zhejiang Yongning Pharmaceutical (Zhejiang)
Istituto Biologico Chemioterapico SpA (Italy)
Kinsy SL (Spain)
Alchem International Ltd (US) and Daewoong Bio Inc. (South Korea)