The registration address of the company is located in room 304, located on the 3rd floor of the 2nd floor of zhang guangyu small commodity city, zhang guange road, zhang guangdong city, shandong province. The registration authority is the market supervision authority of zhang zhang zhang zheng zheng zheng zheng zheng zheng zheng zheng zhengxiang, representing liu chun zheng zheng zheng zheng zheng zheng zheng zheng zheng zheng zhengxiang, and covers technical development, technical advice and technical services in the field of environmental science and technology; and the sale of excavated soil, granite white soil, active white soil, activated charcoal, decolored sand and decolour. (projects subject to legal approval may not operate without the approval of the relevant department)