SU Group Holdings Limited, through its subsidiaries, operates as an integrated security-related services company in Hong Kong and internationally. It operates in two segments, Security-Related Engineering Services Business, and Security Guarding and Screening Services Business. The company primarily provides security-related engineering, security guarding and screening, and related vocational training services. It also engages in the design, supply, installation, maintenance, and testing and commissioning of various security systems. In addition, the company offers threat detection systems, including X-ray machines, trace detection products, metal detectors, and mail screening machines; traffic and pedestrian control systems, such as traffic control, automatic fare control, automatic door,…