Shaoyuan Technology (Shanghai) Co., Ltd.
                            
                            Telephone021-50795510 4000665055
                            Websitehttps://www.shao-yuan.com
                         
                        
                            
                                Shanghai Hanhong Scientific Co.,Ltd.
                            
                            Telephone021-54306202 13764082696
                            Websitehttps://www.hanhongsci.com
                         
                        
                            
                                XiaoGan ShenYuan ChemPharm co,ltd
                            
                            Telephone15527621225; 15527768850
                            Websitehttp://www.farchem.com/
                         
                        
                            
                                Beijing Isomersyn Technology CO;LTD
                            
                            Telephone010-82954736 13391601435
                            Websitehttps://www.chemicalbook.com/supplier/10680452/1.htm
                         
                        
                            
                                Taizhou Crene Biotechnology Co., Ltd.
                            
                            Telephone0576-88813233 88205808 
                            Websitehttp://www.crene.cn
                         
                         
                            
                                Shanghai Synchem Pharma Co., ltd
                            
                            Telephone21-619849051-1 18521059765
                            Websitehttp://www.synchem-pharma.com
                         
                        
                            
                                Taizhou Ruixin Chemical Co., Ltd.
                            
                            Telephone0576-89085261 15867635987
                            Websitehttp://www.runsunchemical.com
                         
                        
                            
                                Shanghai Changyan Chem & Tech Co., Ltd.
                            
                            Telephone021-20242659 18930833303
                            Websitehttp://www.changyanchem.cn
                         
                        
                            
                                Zhengzhou Acme Chemical Co., Ltd.
                            
                            Telephone0371-0371-55629727 13323845623
                            Websitehttp://www.acmechem.cn
                         
                        
                            
                                Changchun BC&HC Pharmaceutical Technology Co.,Ltd
                            
                            Telephone0431-0431-80871588 15804318257
                            Websitehttps://www.chemicalbook.com/ShowSupplierProductsList19899/0_EN.htm
                         
                         
                            
                                Wuhan FengyaoTonghui Chemical Products Co., Ltd.
                            
                            Telephone027-87466105 15377573527
                            Websitehttps://www.chemicalbook.com/ShowSupplierProductsList30440/0_EN.htm
                         
                        
                            
                                Shanghai finete Pharmaceutical Co., Ltd.
                            
                            Telephone021-021-00000000 18221039705
                            Websitehttp://www.finetechpharm.cn
                         
                        
                            
                                Shanghai Genriver Pharmaceutical Co., Ltd.
                            
                            Telephone21-13482015261-883 13482015261
                            Websitehttp://www.genriverpharm.com
                         
                        
                            
                                Taizhou Crene Biotechnology Co. Ltd.
                            
                            Telephone+86-0576-88813233 +86-13396860566
                            Websitehttp://www.pharm-intermediates.com
                         
                        
                            
                                Hefei TNJ Chemical Industry Co.,Ltd.
                            
                            Telephone+86-0551-65418671 +8618949823763
                            Websitehttps://www.tnjchem.com
                         
                         
                            
                                Dayang Chem (Hangzhou) Co.,Ltd.
                            
                            Telephone+86-0571-88938639 +8617705817739
                            Websitehttps://www.dycnchem.com/
                         
                        
                            
                                Baoji Guokang Healthchem co.,ltd
                            
                            Telephone+8615604608665 15604608665
                            Websitehttp://www.gk-bio.com/
                         
                        
                            
                                AFINE CHEMICALS LIMITED
                            
                            Telephone+86-0571-85134551 
                            Websitehttp://www.afinechem.com/index.html