Chuangxin Road No. 27, Science Park, Changping District, 102200 Beijing China Telephone +86 10 62221141 Fax +86 10 62222022 trade@bjhuaren.com http://www.bjhuaren.com

9th, Building, No. 9 Tianfu Street Daxing District, 102600 Beijing China Telephone +86 10 50973600 Fax +86 10 50973600 sales@hotgen.com.cn http://www.hotgen.com.cn

5 Building, No. 3 Yard, Tiangui Street, Daxing District, 102600 Beijing China Telephone +86-10-56100321 Fax +86-10-61057119 2228391074@qq.com http://www.hhgx.cn

802, Xingchuang Plaza, Jinxing West Road Daxing District, 102600 Beijing China Telephone +86 10 80225661 Fax +86 10 80225891 wenjuan@hengxin-med.com http://www.hengxin-med.com

Room 2003, Building 21, Fulishengyueju Jiugong Town, Daxing District, 100076 Beijing China Telephone +86-10-56407795-807 Fax +86-10-56407795-0 jeffjiang@bj-htkd.com http://www.htkdmedical.com

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1505 A Guiduguoji No. 27 Nanbinhe Rd., Guang’anmen, 100054 Beijing China Telephone +86 10 63286285 Fax +86 10 51655859 huiying05@126.com http://charvetech.com/

Room 302, Building 1.no Kechuang 14 Economic-Technologial Development Area, 102600 Beijing China Telephone +86 10 87520020 service@gaugene.com http://www.gaugene.com

No. 17 Xijing Road, Shijingshan District, 100041 Beijing China Telephone +86-10-68813205-8023 Fax +86-10-68827023 patrick@yshmedical.com http://www.eternitymed.com

3rd Floor, Building No. 1 No. 15 Xijing Road, Shijingshan Dist., 100041 Beijing China Telephone +86-10-52895298 Fax +86-10-68867692 export@eternal-med.com http://www.export-med.com