1 Chia Tai Tianqing Pharmaceutical Group Co. Ltd. (Tianqingyitai?)
2 Fresenius Kabi Austria GmbH
3 Novartis Pharma Stein AG (ZOMETA?)
4 Sichuan Hairong Pharmaceutical Co. Ltd. of Yangzijiang Pharmaceutical Group (Midi?)
5 Jiangsu Hengrui Medicine Company Ltd. (Ailang?)