主题词：Mining Techniques and Economics; Mineral Processing and Grinding; Minerals Flotation and Separation Techniques; Metal Extraction and Bioleaching; Geotechnical and Geomechanical Engineering; Belt Conveyor Systems Engineering; Rock Mechanics and Modeling; Metallurgical Processes and Thermodynamics; Extraction and Separation Processes; Tunneling and Rock Mechanics; Mining and Gasification Technologies; Iron and Steelmaking Processes; Mining and Resource Management; Geochemistry and Geologic Mapping; Geomechanics and Mining Engineering; Drilling and Well Engineering; Occupational Health and Safety Research; Coal Properties and Utilization; Landslides and related hazards; Tailings Management and Properties; Soil Geostatistics and Mapping; Microstructure and Mechanical Properties of Steels; Geoscience and Mining Technology; Geological Modeling and Analysis; Geotechnical Engineering and Analysis