The main business of the group is the design, development, manufacture and sales of various types of coils, inductors, transformers, line filters and capacitors, ferrite materials business. Its products have been widely adopted in various industry segments, including power supply device, telecommunication equipemtn, data networking, digital audio-visual prducts, home appliances and handheld multimedia equipment, etc. now it has many famous customers, such as Nokia, flextronics, motorala, Panasonic, Canon, and lemel.