Construction, installation, repair, renovation, replacement and maintenance services for public and private accommodations and infrastructure facilities, building structures, power plants, and manufacturing and construction equipment; provision of construction-related planning; consulting services for the construction of public and private accommodations and infrastructure facilities, building structures, and power plants, construction project management services; general construction contracting services to residential, industrial, commercial, institutional and government sectors; general construction contracting of roads and highways, railroad and transit systems, bridges, tunnels, dams, power plants, underground and above-ground utilities, pipelines, residential buildings, industrial buildings and facilities, manufacturing plants, commercial buildings, institutional buildings and government buildings; construction and installation of buildings, civil engineering structures, roads, highways and railways; installation, repair and maintenance of electrical bus bars, overhead and third rail electrification apparatus, rail signalling and switching apparatus, power distribution systems, substations and trackwork, industrial piping and industrial piping modules, electrical systems and mechanical systems

Generation of energy; Leasing of energy generating equipment