ChemStrong Scientific Co.,Ltd
                            
                            Telephone0755-0755-66853366 13670046396
                            Websitehttp://www.chem-strong.com
                         
                        
                            
                                Shanghai  Kewel  Chemical  Co.,  Ltd.
                            
                            Telephone021-64609169 18901607656
                            Websitehttp://www.kewelchem.com/
                         
                        
                            
                                Shanghai Xiang Xin Industrial Co., Ltd.
                            
                            Telephone021-50211651 13651607026
                            Websitehttp://www.xxgmpharm.com
                         
                        
                            
                                Shenzhen Polymeri Biochemical Technology Co., Ltd.
                            
                            Telephone+86-400-002-6226 +86-13028896684;
                            Websitehttps://www.rrkchem.com
                         
                        
                            
                                TOSUN PHARM
                            
                            Telephone020-61855200 13326451905
                            Websitehttp://www.toref.cn/
                         
                         
                            
                                Guangzhou Dreampharm Biotechnology Co., Ltd.
                            
                            Telephone020-36607679 19925672674
                            Websitehttp://www.dmstandards.com/
                         
                        
                            
                                Jinan blalong chemical co. LTD
                            
                            Telephone 2710913286@.com
                            Websitehttps://www.chemicalbook.com/ShowSupplierProductsList1068244/0_EN.htm
                         
                        
                            
                                Shanghai Xinlitai Pharmaceutical Co. , Ltd.
                            
                            Telephone 18616665298
                            Websitehttp://www.neoleading.com/
                         
                        
                            
                                Meng Cheng Technology (Shanghai) Co., LTD
                            
                            Telephone400-820-6829 
                            Websitehttp://www.mitachieve.com
                         
                        
                            
                                Hubei Xinyang Medical Technology Co., Ltd
                            
                            Telephone15347293736 15347293736
                            Websitehttps://yongstandards.com/
                         
                         
                            
                                Energy Chemical
                            
                            Telephone021-58432009 400-005-6266
                            Websitehttp://www.energy-chemical.com
                         
                        
                            
                                Guangzhou Juntang Technology Co., Ltd
                            
                            Telephone020-36607679 13502246435
                            Websitehttp://www.dmstandards.com
                         
                        
                            
                                Changzhou Xianglong Pharmaceutical Technology Co., LTD
                            
                            Telephone 18661161657
                            Websitehttp://www.xianglongpharm.com/
                         
                        
                            
                                Huaihua Yuanyanda Biotechnology Co., Ltd
                            
                            Telephone 18711085600
                            Websitehttps://www.chemicalbook.com/ShowSupplierProductsList1118979/0_EN.htm
                         
                        
                            
                                Scinova Biotech(Guangzhou) Co., Ltd.
                            
                            Telephone 13268215580
                            Websitehttp://www.scinova-e.com/
                         
                         
                            
                                Shanghai Haohong Scientific Co., Ltd.
                            
                            Telephone400-8210725 4008210725
                            Websitehttps://www.leyan.com/
                         
                        
                            
                                Tan-Mo Technology Co., Ltd.
                            
                            Telephone 19850211281
                            Website
                         
                        
                            
                                Hubei De'ao Chemical Research Pharmaceutical Technology Co., Ltd
                            
                            Telephone18502726233; 18502726233
                            Websitehttps://www.chemicalbook.com/supplier/25403897/