J & K SCIENTIFIC LTD.
                            
                            Telephone18210857532; 18210857532
                            Websitehttps://www.jkchemical.com
                         
                        
                            
                                JinYan Chemicals(ShangHai) Co.,Ltd.
                            
                            Telephone13817811078 
                            Websitehttp://www.jingyan-chemical.com/
                         
                        
                            
                                ZEROSCHEM.CO.,LTD.
                            
                            Telephone10-61256048 13810278579
                            Websitehttp://www.zeroschem.com
                         
                        
                            
                                Chemsky(shanghai)International Co.,Ltd.
                            
                            Telephone021-50135380 
                            Websitehttp://www.shchemsky.com
                         
                        
                            
                                Beijing Yisiyan Technology Research Center
                            
                            Telephone010-56645598 13366904824
                            Websitehttp://www.bjkaida.cn
                         
                         
                            
                                Shanghai T&W Pharmaceutical Co., Ltd.
                            
                            Telephone+86 21 61551611 
                            Websitehttp://www.trustwe.com
                         
                        
                            
                                shanghai cooperpharm co.,LTD .
                            
                            Telephone+86-021-58975553 
                            Websitehttp://www.cooperpharm.com
                         
                        
                            
                                Wuhan Chemduro Pharm Tech Co. Ltd.
                            
                            Telephone18040571231/1402788087 
                            Websitehttps://www.chemicalbook.com/ShowSupplierProductsList16292/0_EN.htm
                         
                        
                            
                                Beijing FYF Chemicals Co., Ltd
                            
                            Telephone010-57903446 15869909019
                            Websitehttp://www.fyfchem.com
                         
                        
                            
                                Shanghai YuLue Chemical Co., Ltd.
                            
                            Telephone021-60345187 13671753212
                            Websitehttps://www.chemicalbook.com/ShowSupplierProductsList16365/0_EN.htm
                         
                         
                            
                                Shanghai ChuangYan Chemical Technology Co., Ltd.
                            
                            Telephone021-11111111 11111111111
                            Websitehttps://www.chemicalbook.com/ShowSupplierProductsList16385/0_EN.htm
                         
                        
                            
                                Bellen Chemistry Co., Ltd.
                            
                            Telephone010-60400365-8001 15910885229
                            Websitehttp://www.bellenchem.com
                         
                        
                            
                                Yancheng Schiemann Biological Technology Co.,Ltd
                            
                            Telephone515-88280676 18921872653
                            Websitehttp://www.ximanbio.com
                         
                        
                            
                                Grader reagent
                            
                            Telephone18221735425 
                            Websitehttp://www.shxinping.net
                         
                        
                            
                                Amadis Chemical Company Limited
                            
                            Telephone571-89925085 
                            Websitehttp://www.amadischem.com
                         
                         
                            
                                Aikon International Limited
                            
                            Telephone025-66113011 13155353615
                            Websitehttp://www.aikonchem.com
                         
                        
                            
                                Shanghai SPAR pharmaceutical technology co., LTD
                            
                            Telephone021-000000 13917643586;
                            Websitehttps://www.chemicalbook.com/ShowSupplierProductsList30714/0_EN.htm
                         
                        
                            
                                Shanghai zhigan biotechnology co., LTD
                            
                            Telephone 
                            Websitehttps://www.chemicalbook.com/ShowSupplierProductsList31144/0_EN.htm