Tianpei Ren
　　a specialist enjoying State Council subsidies, instructor of postgraduate, professional committee member of national hydrology, former director of hydraulic Engineering and Environment department of Science and Engineering University, professor.
　　 The water quality of two big wells, Mahu and Guyi Well examined by specialists, now being exploited by DepenGroup in Qiong Lai, Si Chuan Province has proved to reach three-set standards and belongs to the category of absolute high-quality mineral water.
　　MaHu Well is surrounded by mountains full of verdant forest and thick vegetation, which plays a key role in the high-quality source of water.It comprises of particular mineral elements such as magnesium, sodium, bitter salt and so on.This kind of mineral water is extremely rare all over China.The second well, GuYi Well, belongs to a typical kind of mineral water containing low high-metasilicate and other abundant minerals that is best to be used as root liquor. The root liquor has been protected as local treasure by the local government.

Professor Hengchuan Liu, Huaxi School of Public Health West China Medical Center University.

The choice of source of water is ascertained by surveying, during which a lot of effort is required and it is only in this way that the better source of water and the more natural mineral water could be found. Only one mineral water exploiting base in one county is permitted according to the explicit terms stipulated by our country, which makes the ecologic resources to develop in the direction of a benign way.