J & K SCIENTIFIC LTD.
                            
                            Telephone18210857532; 18210857532
                            Websitehttps://www.jkchemical.com
                         
                        
                            
                                Meryer (Shanghai) Chemical Technology Co., Ltd.
                            
                            Telephone021-61259138 18621169109
                            Websitehttp://www.x-labseek.com/
                         
                        
                            
                                3B Pharmachem (Wuhan) International Co.,Ltd.
                            
                            Telephone821-50328103-801 18930552037
                            Websitehttps://www.chemicalbook.com/ShowSupplierProductsList13285/0_EN.htm
                         
                        
                            
                                Alfa Aesar
                            
                            Telephone400-6106006 
                            Websitehttp://chemicals.thermofisher.cn
                         
                        
                            
                                Energy Chemical
                            
                            Telephone021-021-58432009 400-005-6266
                            Websitehttp://www.energy-chemical.com
                         
                         
                            
                                Nanjing Chemlin Chemical Co., Ltd
                            
                            Telephone025-83697070 
                            Websitehttp://www.echemlin.cn
                         
                        
                            
                                Chemsky(shanghai)International Co.,Ltd.
                            
                            Telephone021-50135380 
                            Websitehttp://www.shchemsky.com
                         
                        
                            
                                Maya High Purity Chemicals
                            
                            Telephone+86 (573) 82222445  (0)18006601000 452520369 
                            Websitehttps://www.chemicalbook.com/ShowSupplierProductsList15221/0_EN.htm
                         
                        
                            
                                Thermo Fisher Scientific
                            
                            Telephone800-810-5118 
                            Websitehttp://www.thermo.com.cn
                         
                        
                            
                                Beijing innoChem Science & Technology Co.,Ltd.
                            
                            Telephone400-810-7969  010-59572699 
                            Websitehttp://www.inno-chem.com.cn
                         
                         
                            
                                9ding chemical ( Shanghai) Limited
                            
                            Telephone4009209199 
                            Websitehttp://www.9dingchem.com
                         
                        
                            
                                Shanghai Raise Chemical Technology Co.,Ltd
                            
                            Telephone 15026594951
                            Websitehttp://www.raise-chem.com
                         
                        
                            
                                Sigma-Aldrich
                            
                            Telephone021-61415566 800-8193336
                            Websitehttps://www.sigmaaldrich.cn
                         
                        
                            
                                Chengdu jingzhihuacheng Chemical Technology Co., Ltd.
                            
                            Telephone028-37664989 15900794981
                            Websitehttp://www.jingzhihcchem.cn/
                         
                        
                            
                                Amadis Chemical Company Limited
                            
                            Telephone571-89925085 
                            Websitehttp://www.amadischem.com
                         
                         
                            
                                Amatek Scientific Co. Ltd.
                            
                            Telephone0512-56316828 
                            Websitehttp://www.amateksci.com
                         
                        
                            
                                Aikon International Limited
                            
                            Telephone025-58859352 18068836627
                            Websitehttp://www.aikonchem.com
                         
                        
                            
                                Shandong Zhishang New Material Co., Ltd.
                            
                            Telephone +8617653113209
                            Websitehttps://www.zhishangchemical.com/