Wai Chi Holdings Company Limited is an investment holding company that manufactures and trades LED backlight and LED lighting products for business corporations and public utilities in the People's Republic of China, Hong Kong, Taiwan, and internationally. It operates through three segments: LED Backlight, LED Lighting, and Semiconductor Memory Chips. The company offers LED backlight products for automobile on-board displays, television displays, and other industrial equipment displays, as well as commercial and public LED lighting products. It also provides lighting solutions design, installation, and maintenance services, energy management solutions, and trades in semiconductor memory chips. Additionally, it engages in property holding activities and provides packaging and testing services and related products sourcing. Founded in 1984, the company is headquartered in Kwun Tong, Hong Kong, and is a subsidiary of Rexell Technology Company Limited.