Paladin Limited, an investment holding company, engages in the property investment, and research and development of high technology system and applications in Hong Kong, Finland, and internationally. The company operates through two segments: Property investment and Research and development. The company invests in and leases properties. It also engages in the development of battery-operated portable x-ray imaging systems used in inspection devices for security and counter-intelligence applications in the areas of baggage scanning, border control and customs, detection of explosive devices, forensic investigation, and security at large scale sporting and other events.