Electrical, electronic, measuring, telecommunications, apparatus and instruments all for use in relation to the supply of public utilities; fire extinguishing apparatus and instruments; electricity distribution apparatus and installations

Apparatus for gas generating, water supply, water treatment and sanitary purposes; gas regulating and safety apparatus

Business management, business administration, provision of office services; provision of accounting services and book keeping; drawing up of statements of accounts; payroll management; advertising services; public relations services; provision of statistical information; rental of office equipment, computer facilities; meter reading; all in relation to the supply of public utilities

Financial management; provision of credit, issuing of accounts and invoices, obtaining information concerning indebtedness, debt collection; real estate management; all in relation to the supply of public utilities

Construction, installation and repair of water, gas, electricity, telecommunications, cable and waste treatment apparatus and installations

Telecommunications services; cable television broadcasting

Distribution, transportation and storage of gas, oil and electricity; supply of water and gas by pipeline; supply of electricity by cable

Treatment of water, sewage, gas and waste; treatment of spent fuel; advisory services relating thereto

Vocational training services; technical and scientific instruction; all in relation to the supply of public utilities

Engineering consultancy services; scientific and technical research and development; legal services; leasing of access time to computer databases; conducting geological surveys; prospecting for oil and gas; destruction of waste; all in relation to the supply of public utilities