Winson Holdings Hong Kong Limited, an investment holding company, provides environmental hygiene and related, and airline catering support services in Hong Kong. The company offers environmental hygiene and related services, including public area and office cleaning, and waste management, as well as specialized services, such as external curtain wall and window cleaning, marble floor maintenance and restoration, intensive cleaning and pest control services, etc. for residential, commercial and shopping complexes, public utilities, transportation systems, and government bodies. It also provides waste recovery, transportation, and disposal solutions; mist disinfection services; robotic cleaning services; and pest management services, including indoor pest management, and rodent prevention and control services for government departments, educational institutes, public utilities, and transportation systems, as well as residential, commercial, and shopping complexes.