Wang & Lee Group, Inc. is a holding company, which engages in the installation of electrical and mechanical systems, it includes low voltage electrical systems, mechanical ventilation and air-conditioning systems, fire service systems, water supply and sewage disposal system installation and fitting out for the public and private sectors. The firm is engaged in the provision of contract engineering, installation and out-fitting of the following products and services, such as low voltage electrical systems, mechanical ventilation and air-conditioning systems (MVAC), fire safety systems, and water supply and sewage disposal systems.