Substantiality（★★★★★） The Report systematically discloses the key issues of general mining industry, such as the implementation of micro-policy, construction of digital mine, management of occupational health, assurance of work safety, system of environmental management, environmental technology, R&D and application of equipment, resources reserve, conservation of land resources, reduction of “three wastes” emission, recovery of residual ore, conservation of mining area, disposal of tailings and protection of eco-environment in mines.