The registration address of the yang's limited liability company for mineral products is located in the village of qingyong town, ishikashi city, hebei province, with the registration authority being the city monitoring authority of lingu county, represented by a legal person, and includes the sale of mineral products (other than chemical products, coal, sandstone solids, which are prohibited or restricted by the state, province, city and county) (projects subject to authorization as prescribed by law, may only operate with the approval of the relevant department) ***