J & K SCIENTIFIC LTD.
                            
                            Telephone18210857532; 18210857532
                            Websitehttps://www.jkchemical.com
                         
                        
                            
                                Meryer (Shanghai) Chemical Technology Co., Ltd.
                            
                            Telephone021-61259138 18621169109
                            Websitehttp://www.x-labseek.com/
                         
                        
                            
                                TCI (Shanghai) Development Co., Ltd.
                            
                            Telephone021-67121386 
                            Websitehttps://www.tcichemicals.com/CN/zh/
                         
                        
                            
                                BeiJing Hwrk Chemicals Limted
                            
                            Telephone0757-86329057 18934348241
                            Websitehttp://www.hwrkchemical.com/
                         
                        
                            
                                Shanghai Hanhong Scientific Co.,Ltd.
                            
                            Telephone021-54306202 13764082696
                            Websitehttps://www.hanhongsci.com
                         
                         
                            
                                Shandong Xiya Chemical Co., Ltd
                            
                            Telephone4009903999 13355009207
                            Websitehttp://www.xiyashiji.com
                         
                        
                            
                                T&W GROUP
                            
                            Telephone021-61551611 13296011611
                            Websitehttp://www.trustwe.com/
                         
                        
                            
                                Shanghai T&W Pharmaceutical Co., Ltd.
                            
                            Telephone+86 21 61551611 
                            Websitehttp://www.trustwe.com
                         
                        
                            
                                9ding chemical ( Shanghai) Limited
                            
                            Telephone4009209199 
                            Websitehttp://www.9dingchem.com
                         
                        
                            
                                Chengdu AstaTech Trading Co., Ltd./AstaTech (Chengdu) Pharma. Co., Ltd.
                            
                            Telephone+86-28-85122536 85324413 
                            Websitehttps://www.chemicalbook.com/ShowSupplierProductsList12313/0_EN.htm
                         
                         
                            
                                Shanghai Gileader Advanced Material Technology Co.,Ltd
                            
                            Telephone 18516111942
                            Websitehttp://www.tanguitech.com/
                         
                        
                            
                                Shanghai Worldyang Chemical Co.,Ltd.
                            
                            Telephone021-021-56795766 
                            Websitehttp://www.worldyachem.com
                         
                        
                            
                                Wuxi Zhongkun Biochemical Technology Co., Ltd.
                            
                            Telephone0510-85629785 18013409632
                            Websitehttp://www.reading-chemicals.com
                         
                        
                            
                                Shanghai Macklin Biochemical Co.,Ltd.
                            
                            Telephone 15221275939
                            Websitehttp://www.macklin.cn
                         
                        
                            
                                Shanghai Enchem Industry Co., Ltd.
                            
                            Telephone15021317485 
                            Websitehttp://www.enchem.cn
                         
                         
                            
                                Shanghai Zhuang Ming New Material Technology Co., Ltd.
                            
                            Telephone17312398916  051386936896 15216715905 
                            Websitehttp://www.zhuangming.net
                         
                        
                            
                                Shanghai Synchem Pharma Co., ltd
                            
                            Telephone21-619849051-1 18521059765
                            Websitehttp://www.synchem-pharma.com
                         
                        
                            
                                Suzhou Siso new material Co.,Ltd.
                            
                            Telephone0512-65402974 18550909935; 
                            Websitehttp://www.szsiso.cn