Building construction; infrastructure construction; aviation infrastructure construction; airport construction; construction, installation, maintenance and repair of buildings, airports and manufacturing plants; insulating and sealing of buildings and airports; damp-proofing of buildings and airports; cleaning of buildings and airports; demolition of buildings and airports; plastering, plumbing, interior and exterior painting; masonry; building and airport construction supervision and maintenance; building and airport construction management services; building and airport site construction management services; installation, maintenance and repair of communications apparatus and networks, computer apparatus and networks, elevators, fire alarms, furniture, office equipment, office machines; installation, maintenance and repair of airport runways, plane stands, passenger terminals, cargo terminals and air traffic control towers; information, advisory and consultancy services relating to the aforesaid services.

Engineering services; architectural design; architecture; interior design services; industrial design services; design and development of interiors and exteriors of buildings and airports; architectural project management services relating to design, layout and refurbishment of buildings and airports; infrastructure as a service [IaaS]; planning of buildings and infrastructure systems for buildings; information, advisory and consultancy services relating to the aforesaid services; information, advisory and consultancy services in the field of information technology architecture; information, advisory and consultancy services in the field of information technology infrastructure.