Sewage & Waste Water Treatment, Refined Water Treatment, Livestock Wastewater Treatment, River Purification, Membranes, Microorganism, Drinking Water Quality Improving Equipment, Pumps·Valves, Design & Construction, 
TMS, Indoor Air Quality Improving Equipment and other Equipment, Carbon Capture & Utilization(CCU), Carbon Capture & Storage(CCS), Hydrogen Fuel Charging Stations, Hydrogen Generation, Hydrogen Storage/Transport, Hydrogen Ships, Hydrogen Industry Machines, Fuel Cells