(Topics include but are not limited to)
Topic 1: Marine Environment
shore protection works
Reclamation project
Harbor Engineering
Coastal Fishery Facility Engineering
Coastal tidal power generation project
River mouth management project
Marine dredging project
Environmental protection facility engineering
Diving Techniques
undersea mining
Subsea Tunnel Engineering
submarine pipeline 
Marine resource development and spatial utilization
Ocean sensing
Ocean Acoustics
acoustic signal processing
Marine Environment and Acoustic Tomography
Underwater Communication and Networks
Marine communication and related technology applications
pollution control
Ecosystem Management
waste management
Environmental management
water resource management
Wastewater discharge management
Water quality modeling
Environmental Nanotechnology
Wastewater and sludge treatment
Water treatment and reclamation
Industrial wastewater treatment
Wetland for wastewater treatment
ecosystem restoration
Biological filtration of harmful gases
Soil remediation
phytoremediation
Topic 2: Energy System
Solar power generation and systems
Wind power generation and systems
Hydroelectric power generation and systems
Geothermal power generation and systems
energy storage system
Energy Conversion Technology and Systems
Energy saving technology
Energy storage
wind power generation
Alternative fuels
nuclear technology
Building Energy
Energy and chemical engineering
renewable energy
New energy vehicles
Coal Mining Engineering Technology
Greenhouse gas treatment
Clean energy development
Thermodynamics and Thermodynamics
Oil and Gas Resources Engineering
Biogas and biomass
Energy Harvesting Technologies
Energy saving lighting system
Smart grid and grid integration
Energy saving buildings and systems
New and Renewable Sources of Energy
High Voltage Direct Current Transmission
Power system and smart grid
Microgrids
Power generation, transmission, and distribution
distributed generation
Energy management strategies and efficient power networks
Energy Storage and Fuel Cells (Hydrogen Co., Ltd.)
Energy system resilience and network security
FACTS
Biomass Energy Engineering
New technologies for oil and gas development
Nuclear Engineering and Hydrogen Energy Resources
Clean coal and fossil fuels
Resource processing machinery and equipment
Hydroelectric, Geothermal, and Tidal
Energy Engineering and Environmental Engineering

Energy Security and Clean Utilization

Energy Equipment and Energy Management
Thermal and Wind Energy Engineering
Energy Materials and Energy Technology
Energy Security and Energy Systems
Energy Conversion and Energy Efficiency
Energy analysis and energy transfer
Energy saving lighting products and technologies
Mineral Resources and Mining Engineering
Renewable energy technologies and systems
Solar related technologies and applications
Conventional energy engineering (coal, oil, natural gas, etc. without conventional electricity)
Power electronic converters for energy systems
Energy efficiency
renewable energy
wind energy
solar energy
Hydrogen energy
Geothermal energy
nuclear energy
tidal energy
New energy vehicles
clean energy
New Energy Materials and Devices
thermodynamics
Energy Management and Sustainable Development
Civil Engineering and Energy saving Buildings
environmental science and engineering
Topic Three: Machinery
Mechanical and Materials Engineering
aerodynamics
Aerospace Systems and Technology
alternative energy sources
Applied Mechanics and Design
automation
fluid dynamics
Industrial engineering
Industrial Tribology
Instrumentation and control
combustion engine
Fuels and Combustion
renewable energy
Reverse Engineering
Solid Mechanics and Fracture Mechanics
Computational Fluid Dynamics
computer aided engineering design
Engineering
Condition monitoring
Heat and mass transfer
heat exchanger
heat transfer
Machine design
machinery dynamics
green manufacturing
Noise and vibration analysis
material science
mechanical engineering
electric engineering
electronic technique
Load Calculation and Forecasting
Power transmission and distribution, as well as power supply and consumption
Electronics and Integrated Circuits
Electrical traction and control
Transformers and Relay Protection
Frequency conversion, speed regulation and energy saving
power electronics and power transmission
Converter, control and power supply