Beijing Solarbio Science & Tecnology Co., Ltd.
                            
                            Telephone 17801761073
                            Websitehttp://www.solarbio.com
                         
                        
                            
                                Guangzhou Dreampharm Biotechnology Co., Ltd.
                            
                            Telephone020-36607679 19925672674
                            Websitehttp://www.dmstandards.com/
                         
                        
                            
                                Hengyang Jiaxuan Biotechnology Co. LTD
                            
                            Telephone 18684598761
                            Websitehttp://www.hyjxsw.com
                         
                        
                            
                                Shenzhen ruikai de biotechnology co., ltd.
                            
                            Telephone0755-61348847 17820674378
                            Websitehttp://www.real-chemstandards.com
                         
                        
                            
                                Shenzhen Jianyi Biotechnology Co., Ltd
                            
                            Telephone0755-84826604 
                            Websitehttp://www.jeanchemical.com
                         
                         
                            
                                SHENZHEN PHYSTANDARD BIO-TECH CO.,LTD
                            
                            Telephone0755-83725350 13380397412
                            Websitehttp://www.phystandard.com.cn
                         
                        
                            
                                Scinova Biotech(Guangzhou) Co., Ltd.
                            
                            Telephone 13268215580
                            Websitehttp://www.scinova-e.com/
                         
                        
                            
                                Shanghai Beiwanta Biotechnology Co., Ltd.
                            
                            Telephone021-67187366 19901745723
                            Websitehttp://www.bwtlab.com/
                         
                        
                            
                                Hubei Moco Chemical Co., Ltd.
                            
                            Telephone18627753421; 18627756402
                            Websitehttp://www.molcoo.com/