• Beijing Jinhweili Applied Chemical Products Co., Ltd.
• +86-10-68457826 68457827 68428487
• China

• BEIJING JIYI CHEMICALS CO.,LTD.
• 0086-010-89389300
• China

• Beijing Keyifeng (KYF) Biotech Develop. Co., Ltd.,
• +86-10-61568551
• China

• Beijing Leaderherb Bio-Tech. Co., LTD.
• +86-10-51288246
• China

• Beijing Lianben Pharm-chemicals Tech. Co.,Ltd.
• +86-10-83386766
• China

• Beijing Lunarsun Pharmaceutical Co.Ltd.
• 86-10-64911848-8020/8010/8018
• China

• Beijing Mashi Fine Chemical Co.,Ltd.
• +86-10-61271592
• China

• Beijing Mediking Biopharm Co.,Ltd.
• +86-10-89753524,81769521/0121
• China

• Beijing Merson pharmaceutical Co., Ltd.
• +86-10-80484574/ 80483447/ 80483574
• China

• Beijing Mesochem Technology Co.,Ltd
• +86-10-67374028;65405760
• China

• Beijing nuotech Co.,Ltd.
• + 86-13520537277
• China

• Beijing Ouhe Technology Co., Ltd.
• 0086-10-87149610 88459036
• China

• Beijing PaiEn Chemicals Co.,Ltd.
• +86-10-60955188 60953848
• China

• Beijing Prina Chemical Industry Co.,Ltd.
• 010-61267868 61267116
• China

• Beijing Profound Tech. & Development Co. Ltd.
• 0086-10-58220856 / 58220857 / 58220858
• China

• Beijing Pure Chem Co.,Ltd.
• +86-10-83993285,13501360655
• China

• BeiJing Qicaichem Technology Co. Ltd.
• +86-10-51037545 52838163
• China

• Beijing Qierya Technology Development Co., Ltd.
• +86-10-65543394, +86-10-65545538
• China

• Beijing Ribio Biotech Co.,Ltd.
• +86-10-58957280
• China

• Beijing Risun Science and Technologies Limited
• 010-63780767
• China