4
Gas; Liquid and gaseous fuels; Gas mixtures; Energy from renewable sources
35
Business consultancy relating to the construction and management of transport systems; Publicity and commercial affairs; Business administration; Office functions; Provision of commercial information; Market prospecting, research and analysis; Taking care of the business interests of others (supervision, management, checking)
37
Installation, construction and laying of networks for the transport and distribution of gas, and gas installations and gas distribution stations; Installation, maintenance and repair of distribution stations for the supply of gas and gas installations; Laying of cables and pipelines; Building construction, installation of devices for extracting minerals; Servicing of conduits; Pipe installation services; Advisory services relating to pipe laying
39
Transport; Transport, storage and distribution of gases and liquids; Energy companies, namely transport, storage and distribution of gases, liquids and gases in liquid form, including through pipelines; Providing information and advice in the field of transport, storage and distribution of gases and liquids; Logistic planning relating to transport, storage and distribution of gases and liquids; Consultancy for companies in the field of gas transport
42
Technical inspection services; Pipeline inspection services; Engineering consultancy services; Engineering services relating to gas transport and supply systems; Engineering services for the gas industry; Research and development services in the field of engineering; Engineering design and consultancy; Technical advice and consultancy relating to the construction and management of transport systems; Scientific and technological services and research and design relating thereto; Industrial analysis and research services; Research and innovation (design) in the field of energy supply; Providing technical consultancy relating to energy saving; Providing scientific and technical research into environmental impact, and reporting thereon; Scientific research in the field of environmental and energy issues