Installation, maintenance and repair services in this class relating to electric and electronic equipment, appliances, instruments and machinery; construction, repair, cleaning and maintenance services in this class relating to transmission lines, distribution lines, power station, substations, communications equipment, plant and machinery; building and construction supervision, building project management; maintenance and repair of gas installations and equipment; maintenance and repair of appliances, instruments and machinery used in the gas industry; maintenance and repair of water apparatus, water pipes and installations

Distribution of electricity and gas; supply of electricity and gas; water supply and distribution services

Generation of electricity and gas; processing, purification and refining of gas; treatment of water and waste water