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: Smart grid solutions, AI-integrated energy efficiency solutions, and Digital energy services. Its Smart grid solutions segment offers power metering infrastructure to provides full-stack intelligent solutions for power grid planning, operation, monitoring, maintenance, and optimization by leveraging intelligence technologies, such as artificial intelligence and machine learning. The AI-integrated energy efficiency solutions segment is involved in the manufacture, sale of communications and fluid metering products with deeply integrates digitalization and intelligent technologies, incorporates AI algorithms, and provides customers with comprehensive energy efficiency analysis, management, and optimization services. Its Digital energy services offer manufacturing, sales of integrated solutions for data centers, smart distribution network, and new energy storage related powering digitalization and intelligentization of the energy ecosystem. It is also involved in the development, manufacture and sale of energy saving products, water, gas and heat meters, switchgears, electronic components, smart distribution devices, and related services; and trading of power meters. It operates in the People's Republic of China, Africa, the United States, Europe, rest of Asia, and internationally. The company was formerly known as Wasion Group Holdings Limited and changed its name to Wasion Holdings Limited in June 2018. The company was founded in 2000 and is headquartered in Wan Chai, Hong Kong. Wasion Holdings Limited is a subsidiary of Star Treasure Investments Holdings Limited.