Xi¡¯an Gaoyuan Bio-Chemical Co., Ltd. is a comprehensive enterprise with functions of research and development, manufacture and trade, and is a leading supplier of pharmaceutical products. We are a specialized enterprise in the research and development, manufacture, sales and marketing of pharmaceutical intermediate products such as Diosgenin, Progesterone, Pregnenolone Acetate as well as 17a-Hydroxyprogesterone Acetate, etc.