Building construction; infrastructure construction; aviation infrastructure construction; airport construction; construction, installation, maintenance and repair of buildings, airports and 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 management services; installation, maintenance and repair of communications apparatus and networks, computer apparatus and computer networks, elevators, fire alarms, furniture, office equipment, office machines; installation, maintenance and repair of electric vehicle charging points, electric vertical take-off and landing points, energy supply systems, airport runways, plane stands, passenger terminals, cargo terminals and air traffic control towers; information, advisory and consultancy services relating to the aforesaid services

Airport services; provision of airport operations services; airport baggage handling; air traffic management services; air traffic control services; airport parking services; airport transfer services; airport check-in services; ground support fright handling services provided at airports; provision of airport facilities for aviation; provision of airport information; provision of assistance, information and advice to passengers at airports; information, advisory and consultancy services relating to the aforesaid services

Engineering services; industrial design services; planning, design and development of accessible infrastructure systems; planning, design and development of air transport technology; planning, design and development of technology to support infrastructure systems for air transport networks; design and development of interiors and exteriors of buildings and airports; project management services relating to design, layout and refurbishment of buildings and airports; infrastructure as a service (IaaS); planning of buildings and airports and infrastructure systems for buildings and airports; planning, design and development of infrastructure systems for air transport networks; planning, design and development of aviation infrastructure systems; planning, design and development of infrastructure systems for air transport networks, including air traffic management systems, electric vehicle charging points, electric vertical take-off and landing points, energy supply systems, ground infrastructure systems, airport runways, plane stands, passenger terminals, cargo terminals and air traffic control towers; planning, design and development of air traffic management and air traffic control systems; certification of infrastructure systems for buildings, airports and air transport networks; quality testing in relation to infrastructure systems for buildings, airports and air transport networks; quality control services in relation to infrastructure systems for buildings, airports and air transport networks; design and development of computer software in relation to air transport networks, infrastructure systems, air traffic management systems, electric vehicle charging points, electric vertical take-off and landing points, energy supply systems, ground infrastructure systems, airport runways, plane stands, passenger terminals, cargo terminals and air traffic control towers; planning, design and development of information technology architecture; software as a service (SaaS) in relation to air transport networks, infrastructure systems, air traffic management systems, electric vehicle charging points, electric vertical take-off and landing points, energy supply systems, ground infrastructure systems, airport runways, plane stands, passenger terminals, cargo terminals and air traffic control towers; design and development of mobile applications in relation to air transport networks, infrastructure systems, air traffic management systems, electric vehicle charging points, electric vertical take-off and landing points, energy supply systems, ground infrastructure systems, airport runways, plane stands, passenger terminals, cargo terminals and air traffic control towers; planning, design and development of information technology architecture in the field of air transport; information, advisory and consultancy services in the field of information technology architecture; information, advisory and consultancy services in the field of infrastructure; information, advisory and consultancy services relating to the aforesaid services