4
Fuels, in particular natural gas
35
Professional business and professional advertising consultancy in the field of operation of refuelling installations for natural gas-powered motor vehicles; arranging and concluding of contracts relating to transport capactities and transport services using supply networks; collating of data in computer databases
37
Construction and maintenance of supply networks for transporting natural gas, and of refuelling installations for natural gas-powered motor vehicles
38
Telecommunications services; provision of telecommunications equipment, in particular operating data networks; communications by optical fibre networks
39
Transport; transport, distribution and delivery of gases and liquids by pipeline, in particular natural gas to local authority districts, trade and industry; transport and distribution of natural gas, for others; storage of gases and liquids, in particular natural gas in underground pore and salt cavern reservoirs; supplying consumers with natural gas, heating and energy; conducting gases and liquids through supply networks
40
Generating thermal energy and energy in thermal power stations
42
Engineering, in particular in the fields of gas transport, the supplying of gas, heat and energy, and the use of natural gas, in particular for heat generation and as a fuel for motor vehicles; energy consultancy; research services, engineering and technical calculations in the fields of gas transport and the use of natural gas, in particular for heat generation and as a fuel for motor vehicles; planning and construction of refuelling installations for natural gas-powered motor vehicles; computer programming, in particular relating to programs in the fields of gas transport, the supplying of gas, heat and energy, and the use of natural gas, in particular for heat generation and as a fuel for motor vehicles; providing platforms on the Internet