Zhengzhou Granlen Sciences, ltd.
                            
                            Telephone0371-85513397 +86-18610099868
                            Websitehttp://www.granlen.com
                         
                        
                                
                            
                                Shanghai Yiyan Biotechnology Co. , Ltd.
                            
                            Telephone021-69985186 13611928337
                            Websitehttps://www.chemicalbook.com/ShowSupplierProductsList1691458/0_EN.htm
                         
                        
                            
                                Shanghai Hanhong Scientific Co.,Ltd.
                            
                            Telephone021-54306202 13764082696
                            Websitehttps://www.hanhongsci.com
                         
                        
                            
                                T&W GROUP
                            
                            Telephone021-61551611 13296011611
                            Websitehttp://www.trustwe.com/
                         
                        
                            
                                Beijing HuaMeiHuLiBiological Chemical 
                            
                            Telephone010-56205725 
                            Websitehttp://www.huabeibiochem.com/
                         
                         
                            
                                UHN Shanghai Research & Development Co., Ltd.
                            
                            Telephone021-58958002 18930822973
                            Websitehttp://www.uhnshanghai.com
                         
                        
                            
                                Finetech Industry Limited
                            
                            Telephone027-87465837 19945049750
                            Websitehttps://www.finetechchem.com/
                         
                        
                            
                                Shanghai Macklin Biochemical Co.,Ltd.
                            
                            Telephone 15221275939
                            Websitehttp://www.macklin.cn
                         
                        
                            
                                Wuhu Nuowei Chemical Technology Co., Ltd
                            
                            Telephone0553-0553-8233716-803-803 18055326116
                            Websitehttp://www.nuowei-chem.com
                         
                        
                            
                                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
                         
                        
                            
                                Shandong Xiya Chemical Co., Ltd.
                            
                            Telephone4009903999 13395398332
                            Websitehttp://www.xiyashiji.com
                         
                        
                            
                                Shandong Ono Chemical Co., Ltd.
                            
                            Telephone0539-6362799 20) 
                            Websitehttp://www.onochem.com
                         
                        
                            
                                Shenzhen Regent Biochemical Technology Co., Ltd.
                            
                            Telephone0755-85201366 18938635012
                            Websitehttp://www.regentsciences.com/
                         
                        
                            
                                Rhawn Reagent
                            
                            Telephone400-400-1332688 18019345275
                            Websitehttp://www.rhawn.cn
                         
                         
                            
                                Fuyang Ziyi Biological Pharmaceutical Co., Ltd.
                            
                            Telephone19308655899; 19308655899
                            Websitehttps://www.chemicalbook.com/ShowSupplierProductsList30618/0_EN.htm
                         
                        
                            
                                Finetech Industry Limited
                            
                            Telephone+86-27-8746-5837 +8619945049750
                            Websitehttps://www.finetechnology-ind.com/
                         
                        
                            
                                NewCan Biotech Limited
                            
                            Telephone+86-0571-86912261 +8613735419629
                            Websitehttps://www.newcanbio.com/