Hunan Kingson Pharmaceutical Technology Co., Ltd. is located in Changsha National Biological Industry base (the only one National Biological Industry base in the central and west region of China). We enjoy good location for we are close to national highway 319 and Changsha Huanghua Airport. Dingsheng is a hi-tech enterprise specialized in the research, development, manufacturing and trade of APIs, chemical materials, pharmaceutical intermediates, materials of hea...