Wasion Holdings Limited, an investment holding company, engages in the research and development, production, and sale of energy metering and energy efficiency management solutions for energy supply industries. The company operates through three segments: Power Advanced Metering Infrastructure, Communication and Fluid Advanced Metering Infrastructure, and Advanced Distribution Operations. It offers smart meters, smart water and gas meters, and ultrasonic calorimeters; meters and power quality monitoring devices; energy data collection terminals, load management terminals, and user management devices; and measurement automation systems and various application systems, services, and energy data mining. The company also provides network interface modules, data concentrator units, communication modules, RF gateways, data repeaters, cellular modules, standalone cellular modems, and LoraWAN gateways; and system software solutions comprising utilities customer information, universal device integration, meter data reading, prepayment vending management, meter parameters management, HMPM, energy data integration, and smart network management systems.