Machinery installation, maintenance and repair services; maintenance and repair services of machinery for industrial plants; installation, maintenance and repair of industrial apparatus and instruments, namely, heat exchange and transfer apparatus employing catalytic chemical reactions; installation, maintenance and repair of electrical systems; installation, maintenance and repair of heating apparatus; installation, maintenance and repair of steam generating apparatus; installation, maintenance and repair of water apparatus namely, water supply and water desalination apparatus; installation, maintenance and repair of gas installations and equipment namely, gas turbine engines; installation, maintenance and repair of apparatus for use in measuring energy, energy generation and the supply of energy; installation, maintenance and repair of computer hardware and computer peripherals; installation, maintenance and repair of apparatus used for cooking, refrigerating, drying, ventilating and sanitary purposes; repair of heat exchange and transfer apparatus; maintenance and servicing of data processing installations and apparatus; maintenance of electronic monitoring devices; diagnostic maintenance of apparatus for heating and steam generation; provision of advice, information and consultancy services in relation to the aforesaid

Services for monitoring industrial processes for quality control purposes; inspection and testing of plant and machinery for quality control purposes; inspection and testing of industrial and commercial installations; machine condition monitoring for quality control purposes; material testing; product quality testing; monitoring of computer systems by remote access to ensure proper functioning; computer support services namely, computer software programming and software installation, repair and maintenance services; recording data for others on optical, digital and magnetic media for electronic storage relating to energy consumption in buildings; product monitoring services for quality control purposes; technical energy meter reading data analysis services; technical diagnostic testing services in the field of computer hardware, computer software, and control, tracking and monitoring devices for energy management; testing of machinery; testing of the goods and services of others to determine conformity with certification standards; services for assessing the efficiency of chemicals; provision of advice, information and consultancy services in relation to the aforesaid