SU Group is a Hong Kong-based security services company operating through two subsidiaries: Shine Union and Fortune Jet. Shine Union, the larger business, designs, supplies, installs, and maintains physical security systems for commercial, public, and residential properties across Hong Kong. These systems include threat detection equipment (X-ray machines, metal detectors, mail screening machines), traffic and pedestrian control systems (turnstiles, automatic doors), and extra-low voltage systems (CCTV, access control, building management). Shine Union also sells and installs SUNGATE, its proprietary carpark management system, and holds exclusive distribution rights for two threat detection brands. Shine Union generates revenue through fixed-price project contracts, recurring maintenance agreements, and equipment leasing. Fortune Jet provides security guarding and screening services, dispatching guards to residential properties, construction sites, schools, and events, and deploying screeners to air cargo facilities under Hong Kong's regulated air cargo screening scheme. Fortune Jet also runs accredited vocational training courses that serve as a recruitment pipeline for its own deployment business. Fortune Jet's profitability is driven by the spread between billing rates and wages paid to personnel. Across both businesses, the majority of revenues come from repeat customers. SU Group's operations are almost entirely concentrated in Hong Kong, with a recently incorporated Macau subsidiary that has no operations yet.