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4F, Jingyang Science & Technology, Bldg. No. 15 Xijing Rd., Shijingshan, 100041 Beijing China, People’s Republic Telephone +86 10 88204630 Fax +86 10 88204632 jessica@choicemmed.com http://www.choicemmed.com

7 Fengxian Zhonglu, Yongfeng Base, Haidian District, 100094 Beijing China, People’s Republic Telephone +86 10 58717511 Fax +86 10 58717500 BD@chemclin.com http://www.chemclin.com

No. 1 Yuanguang Street, Miyun Economic Development Zone, 101500 Beijing China, People’s Republic Telephone +86 10 69056141 Fax +86 10 69061747 clare@bjbest.com.cn http://www.bjbest.com.cn

2nd Floor, Xingye Mansion, No. 10 Baifuquan Road, Changping Dist., 102200 Beijing China, People’s Republic Telephone +86 10 80109581 Fax +86 10 80109583 michelle_akmedical@yahoo.com http://www.ak-medical.net

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Guangyang Road, Huangcheng, Town industria, Baoying Country, 225800 Yangzhou, Jiangsu China, People’s Republic Telephone +86 514 88265689 Fax +86 514 88261715 fyk@china-fk.com http://www.china-fk.com

2nd, Floor of 8-2 Building, Gaoqiao Industrial Zone, 314515 Tongxiang, Zhejiang China, People’s Republic Telephone +86 573 80889033 Fax +86 573 80889034 info@bao-health.com http://www.bao-health.com

No. 10 Juncheng Road, Eastern Area GETDD, 510760 Guangzhou China, People’s Republic Telephone +86 20 66856868 Fax +86 20 32055046 leticia@baingz.com http://www.bainmedical.com