What does SH () do?

SH Group (Holdings) Limited, an investment holding company, provides electrical and mechanical (E&M) engineering services for public and private sectors in Hong Kong. It engages in the supply, installation, and maintenance of mechanical ventilation, and air-conditioning systems; and provides services related to low voltage electrical systems and other E&M systems, including fire services systems, and plumbing and drainage systems. The company was founded in 1986 and is headquartered in Kowloon, Hong Kong.