Trio Industrial Electronics Group Limited, an investment holding company, provides customized engineering and contract manufacturing services in the People's Republic of China, South-east Asia, North America, Europe, and internationally. Its product portfolio includes electro-mechanical products, switch-mode power supplies, smart chargers, smart vending systems, automatic testing equipment, power switch gear boards, and catering equipment control boards. The company also provides information technology services; global sourcing and purchase of materials; and sales and marketing, and support services, as well as engages in manufacturing and sale of electronic products and components. In addition, it is involved in provision of electric vehicle charging solutions services and trading of electric vehicle chargers. The company's products have applications in industrial and commercial areas, such as renewable energy facilities, telecommunication equipment, commercial freight equipment, medical and healthcare devices, security and access systems, and leisure and entertainment kiosks. The company was founded in 1983 and is headquartered in Hung Hom, Hong Kong. Trio Industrial Electronics Group Limited is a subsidiary of Trio Industrial Electronics Holding Limited.