37
Maintenance and repair of heating apparatus; heating equipment installation and repair; freezing equipment installation and repair; electric appliance installation and repair; installation, maintenance and repair of computer hardware; installation and repair of air-conditioning apparatus; Installation, repair and maintenance of computers and computer peripherals; Installation and maintenance of photovoltaic installations; Repair or maintenance of electric lighting apparatus; Repair or maintenance of video frequency machines and apparatus; Repair or maintenance of communications equipment; Repair or maintenance of waste compacting machines and apparatus; Repair or maintenance of waste crushing machines and apparatus; Information technology consultancy relating to installation, maintenance and repair of computer hardware; Repair or maintenance of water purifying apparatus
40
Processing of semiconductor wafers; Rental of generators; Generation of electricity from solar energy; Rental of electricity generators; Leasing of energy generating equipment; Energy production; Generation of electricity from wind energy; Recycling of plastics; Recycling of metals; Water treatment; Rental of water purifying apparatus; Recycling of waste and trash; Upcycling [waste recycling]; Waste disposal [treatment of waste]; Recycling of waste; Treatment of toxic waste; Refining of metals; Processing of plastics; encapsulation of semiconductors; custom manufacture of semiconductor circuits
42
Provision of Internet search engines; research in the field of artificial intelligence technology; Research relating to data processing; Semiconductor package design; Semiconductor design; Technical design and planning of power stations; Technological consulting services in the field of alternative energy generation; Technical studies; Product development for others; Research and development of products for others; Energy auditing; Research in the field of energy; Design of integrated circuits; website design consultancy; Scientific research in the field of environmental protection; Technical consulting in the field of environmental engineering; Cloud computing; Technical advice and consultancy services in the field of information technology; technical research; Electronic data storage