Construction of hydroelectric power plants, thermal power plants, nuclear power plants, and other power plants; installation of apparatus for generating power; electrical installation services; construction consultancy; consultancy and information services relating to construction; operation and maintenance of building equipment; ship building; repair or maintenance of vessels; aircraft repair or maintenance; repair of bicycles; repair or maintenance of automobiles; repair or maintenance of railway rolling stocks; repair or maintenance of two-wheeled motor vehicles; repair or maintenance of air conditioners for industrial purposes; repair or maintenance of burners; repair or maintenance of boilers; repair or maintenance of pumps; repair or maintenance of freezing machines and apparatus for industrial purposes; repair or maintenance of electronic machines and apparatus; repair or maintenance of telephone apparatus; repair of radio receivers or television receivers; repair or maintenance of telecommunication machines and apparatus [other than telephone apparatus, radio receivers and television receivers]; repair or maintenance of construction machines and apparatus; repair or maintenance of electric lighting apparatus; repair or maintenance of electric motors; repair or maintenance of power distribution or control machines and apparatus; repair or maintenance of power generators; consultancy relating to the repair and the maintenance of power generators; repair of apparatus and installations for generating power; installation, maintenance and repair of apparatus for distributing electricity; repair or maintenance of laboratory apparatus and instruments; repair or maintenance of measuring and testing machines and instruments; repair or maintenance of medical apparatus and instruments; repair or maintenance of chemical plants; repair or maintenance of hydroelectric power plants, thermal power plants, nuclear power plants, and other power plants; repair and maintenance of 3D printers; construction of power plants.;
Providing meteorological information; architectural design; surveying; design of electrical installations; geological surveys or research; designing of machines, apparatus, instruments [including their parts] or systems composed of such machines, apparatus and instruments; design and development of photovoltaic systems; design of energy generating installations; design of power plants and chemical plants; design and development of energy distribution networks; engineering services in the field of energy technology; engineering services relating to production of renewable energy; design and development of renewable power generation systems using wind power; design services; computer software design, computer programming, or maintenance of computer software; design and development of systems for regenerative energy generation; programming of energy management software; technological advice relating to computers, automobiles and industrial machines; testing, inspection or research of pharmaceuticals, cosmetics or foodstuffs; research on building construction or city planning; testing or research on prevention of pollution; testing or research on electricity; testing or research on civil engineering; energy auditing; consultancy in the field of energy efficiency; consultancy in the field of energy-saving; scientific research in the field of renewable energy; technological consulting services in the field of alternative energy generation; consultancy relating to technological services in the field of power and energy supply; design and development of power distribution systems using wind energy; design and development of power distribution systems using renewable energy; testing, inspection or research on agriculture, livestock breeding or fisheries; testing or research on machines, apparatus and instruments; rental of measuring apparatus; rental of computers; providing computer programs on data networks; rental of laboratory apparatus and instruments; rental of telescopes; rental of technical drawing instruments.;