General building construction services and general building construction works; construction and construction management of tunnels and underground structures; underwater construction and marine construction in the nature of dredging; airport construction; construction services, namely, installation of environmental containment systems in the nature of embankment construction; railroad construction; construction of agricultural irrigation channel; construction, maintenance and renovation of property in the nature of land preparation for construction; construction, maintenance and renovation of property in the nature of land reclamation for construction; construction services, namely, road paving; construction services, namely, masonry; construction and installation of masonry walls and structures; construction services, namely, glasswork glazing; steel structure construction works; construction services, namely, plastering; construction services, namely, carpentry; construction services, namely, tile laying, bricklaying or block laying; construction services, namely, joinery; construction services, namely, building reinforcing; construction services, namely, painting of buildings; scaffolding, earthworks or concrete construction; construction services in the nature of earth excavation; concrete structure construction; construction services, namely, upholstering; work of installation of metal sheets for construction; construction services in the nature of building damp-proofing; construction in the nature of roofing services; construction services in the nature of plumbing; construction services in the nature of machinery installation; construction services in the nature of drilling of wells; construction services and installation of electrical systems and electrical works; construction services in the nature of telecommunication wiring; construction services in the nature of thermal insulating for buildings and installation of building insulation; construction services, namely, concrete paving, site clearing, excavation, pad preparation, grading, and asphalt paving services; construction, maintenance and renovation of property, namely, construction of soil remediation facilities and structures for soil remediation; installation of environmental containment systems in the nature of construction of underground barrier wall for soil remediation; construction, maintenance and renovation of property in the nature of excavation services for soil remediation; construction, maintenance and renovation of property, namely, removal and replacement of contaminated soil for soil remediation; maintenance of energy generation equipment; construction supervision; construction consultancy; operation, check or maintenance of building, namely, maintenance or repair of buildings; cleaning of building exterior surfaces; rental of construction equipment; rental of construction machines and apparatus

Surveying; architectural design; urban planning; advisory and consultancy of urban planning; geological surveys or research; design of ventilation facilities and electrical facilities; engineering of environmental maintenance systems; computer software design, computer programming, or maintenance of computer software; testing or research on civil engineering; research and design of city planning and regional development