J & K SCIENTIFIC LTD.
                            
                            Telephone18210857532; 18210857532
                            Websitehttps://www.jkchemical.com
                         
                        
                            
                                TCI (Shanghai) Development Co., Ltd.
                            
                            Telephone021-67121386 
                            Websitehttps://www.tcichemicals.com/CN/zh/
                         
                        
                            
                                Energy Chemical
                            
                            Telephone021-021-58432009 400-005-6266
                            Websitehttp://www.energy-chemical.com
                         
                        
                            
                                Shanghai Hanhong Scientific Co.,Ltd.
                            
                            Telephone021-54306202 13764082696
                            Websitehttps://www.hanhongsci.com
                         
                        
                            
                                9ding chemical ( Shanghai) Limited
                            
                            Telephone4009209199 
                            Websitehttp://www.9dingchem.com
                         
                         
                            
                                Shanghai Aladdin Bio-Chem Technology Co.,LTD
                            
                            Telephone400-6206333 13167063860
                            Websitehttp://www.aladdin-e.com/
                         
                        
                            
                                Chizhou Kailong Import and Export Trade Co., Ltd.
                            
                            Telephone 
                            Websitehttps://www.chemicalbook.com/ShowSupplierProductsList16778/0_EN.htm
                         
                        
                            
                                Sigma-Aldrich
                            
                            Telephone021-61415566 800-8193336
                            Websitehttps://www.sigmaaldrich.cn
                         
                        
                            
                                Shanghai EFE Biological Technology Co., Ltd.
                            
                            Telephone021-65675885 18964387627
                            Websitehttp://www.efebio.com
                         
                        
                            
                                Shanghai YuanYe Biotechnology Co., Ltd.
                            
                            Telephone021-61312847; 18021002903
                            Websitehttp://www.shyuanye.com
                         
                         
                            
                                Chengdu Dianchun Technology Co., Ltd
                            
                            Telephone400-1166-196 15982826727
                            Websitehttp://www.hx-r.com
                         
                        
                            
                                9ding chemical ( Shanghai) Limited
                            
                            Telephone021-021-52271985 17721149837
                            Websitehttp://www.9dingchem.com
                         
                        
                            
                                Shanghai Zhen Li Biological Technology Co., Ltd
                            
                            Telephone021-16621358918; 18516310516
                            Websitehttps://www.chemicalbook.com/ShowSupplierProductsList30395/0_EN.htm
                         
                        
                            
                                Shanghai Jizhi Biochemical Technology Co. Ltd.
                            
                            Telephone4009004166/18616739031 18616739031
                            Websitehttp://www.acmec-e.com/
                         
                        
                            
                                Shaanxi Jiandu Pharmaceutical Chemical Co. Ltd.
                            
                            Telephone029-88380327 17691182729
                            Websitehttp://www.dideu.cn
                         
                         
                            
                                Shenzhen Polymeri Biochemical Technology Co., Ltd.
                            
                            Telephone+86-400-002-6226 +86-13028896684;
                            Websitehttps://www.rrkchem.com
                         
                        
                            
                                Guangzhou Tomums Life Science Co., Ltd.
                            
                            Telephone020-31155029 18902330969
                            Websitehttp://www.tomums.cn/
                         
                        
                            
                                Xi'an MC Biotech, Co., Ltd.
                            
                            Telephone029-89275612 +8618991951683
                            Websitehttps://www.chemicalbook.com/ShowSupplierProductsList1759320/0_EN.htm