Building and construction services; roading services; construction, maintenance, installation, supervision, and repair of buildings, roads, tunnels, walls, bridges, transport infrastructure, barriers, and other constructions; excavation and earthworks; maintenance of stormwater, waste water, and water supply facilities and installations; remediation of contaminants in soil and groundwater; maintenance of parks, gardens, reserves, paths, cycleways, public facilities, and streetworks; quarrying services; project management, contract administration and contract supervision services in relation to the aforesaid services; project and process management services in relation to the aforesaid services; consultancy, advisory and information services relating to the foregoing including via the Internet.