KML Technology Group Limited, an investment holding company, provides electrical and mechanical (E&M) engineering solutions and services in Hong Kong, Taiwan, Canada, and internationally. The company operates through five segments: Transportation Mission Critical System Solutions; Mobile Ticketing and Digital Payment Solutions and Services; Digital Fabrication and Maintenance Services; M&E Technology Solutions and Engineering Services; and Sales of Products, Parts and Components. It engages in the provision of platform gap light-emitting diode flashing lights systems; replacement of trackside advertising panels along railway lanes and stations; installation of optical fibre backbones for communications-based train control (CBTC) signaling systems; pedestrian warning system at some hotspot locations; enhancement of the signaling power supply network’s reliability of a railway line; replacement and upgrading of automatic fare collection gates and ticket issuing machines; supply and installation of lane equipment for e-payment system; supply of AFC equipment; and application of QR code for travel on MTR. The company is also involved in the maintenance and enhancement of AFC equipment and security systems at various railway lines; maintenance of trackside signaling equipment for a high-speed railway line; maintenance of various access control equipment and carpark systems; replacement and modification of smoke curtains; replacement of trackside advertising panels; standardization of shop signs; refurbishment and replacement of air handling unit (AHU) and primary air unit (PAU) at various railway lines; enhancement of environmental control system (ECS) at various railway stations; replacement of station lighting; and revamp of trackside advertising panels. The company serves transportation companies, engineering companies, and governmental departments. KML Technology Group Limited was founded in 1977 and is headquartered in Sha Tin, Hong Kong.