• Beijing chemical industrial college rushan cooperation chemical factory
• 0086-631-6728135, 6728398
• China

• Beijing ChemSun PharmTech Co.,Ltd,
• 86-10-83794481,83795528,861391177236
• China

• Beijing Chengyu Specialty Chemcial Co., Ltd.
• 0086-10-89300196, 89308945, 89309394
• China

• Beijing Chonda Century Chemical Co.,Ltd
• +86-10-61261340
• China

• Beijing colory chemicals Co.,Ltd.
• 0086-10-51393951 13901368986
• China

• Beijing Cooperate Pharmaceutical Co.,Ltd.
• 86-10-60279497
• China

• BEIJING CROSS-CENTURY SCIENCE & TECHNOLOGY CO.,LTD
• +86-10-62142952 69687145
• China

• Beijing DeLee Pharma Technology Co.,Ltd.
• +86-17316103847;+86-13718462078
• China

• BeiJing DiLong Chemical Co.,Ltd.
• +86-18674899671
• China

• Beijing Dongfang Yongyu Macromolecule Co., Ltd.
• +86-10-61501488, 61501489, 61565553
• China

• Beijing Dyestuff Factory
• 86-10-67383777(general exchange), 86-10-67385089
• China

• Beijing East Dezhong Science & Technology Development Co., Ltd.
• +86-10-89283318 89283361
• China

• Beijing Eastern Acrylic Chemical Technology Co., Ltd. (BEACT)
• 86-10-61567430
• China

• Beijing Element Chem-tech Company
• 010-61563747
• China

• Beijing F&F Chemical Co.,Ltd.
• 86 10 6444 6910, 6444 6911, 64446912
• China

• Beijing Fengli Jingqiu Trade Co., Ltd.
• +86-10-87969882/87966828/87967188/87969881
• China

• BEIJING FLYING WORLD SCIENTIFIC TRADE CO., LTD.
• 8610-51522378 / 51522509 / 51522806
• China

• Beijing FortuneStar S&T Development Co., Ltd.
• +86-10-57243727 / 8 / 9
• China

• Beijing Friend Pharmaceutical Co.,Ltd
• +86-10-69709755－211/227/228 or ：+86-10-69703488
• China

• Beijing Gan Xing Chemical Plant
• +86-10-61523447-8666 +86-13901177446 +86-13910756980
• China