Panjin Derun Biotechnology Co., Ltd. was established in March 2010. The company mainly takes silymarin as the leading product and focuses on the extraction of natural plant effective ingredients. It is a high-tech enterprise integrating production, research and development and sales. Silymarin in the production process using a variety of solvents, acetone, ethyl acetate, n-ethane, gas will be emitted into the air, easy to burn and fire, AnstAD professional gas detection experts, to provide a guarantee for life safety.