Electrical contractor services; Advisory services relating to the installation of lighting apparatus; Construction of transmission lines; Maintenance of traffic control equipment; Installation and maintenance of traffic control apparatus; Installation and maintenance of transportation and traffic equipment and systems; Installation of renewable energy generation equipment; Construction project management services in the field of construction of renewable energy and energy generation equipment support structures and ancillary structures for supporting meteorological data gathering equipment; Repair and installation services, namely, the installation of heating, cooling and environmental control systems primarily using solar energy, renewable energy resources and rainwater; Repair or maintenance of integrated circuits manufacturing machines and systems; Construction and construction management of tunnels and underground structures; Construction of roads, underground utilities, and housing pads

Electronic and electrical systems design services; Lighting design and technology specification services pertaining to permanent or temporary architectural, theatrical, entertainment, commercial and/or residential applications; Design of traffic control equipment; Design of traffic systems; Scientific research in the field of renewable energy; Traffic design integration; Design of integrated circuits