SU Group Holdings Ltd is a holding company mainly engaged in the provision of security-related engineering services. The Company operates its business through its subsidiaries, Shine Union Ltd and Fortune Jet Management & Training Co Ltd. The Shine Union Ltd provides turnkey services to the existing infrastructure or planned development of its customers through the design, supply, installation, and maintenance of security systems. It is also the exclusive distributor to market and sell two brands of threat detection systems, which includes X-ray machines, trace detection products, metal detectors and mail screening machines. Fortune Jet Management & Training Co Ltd mainly provides security guarding and screening services and related vocational training services.