35 Advertising services; promotional activities being sales promotion for others; business management; business administration; providing office functions; business organisation consulting; providing business economic consulting in the field of energy; business administration consultancy; marketing services; market canvassing being market research, market research and market analysis; providing an online marketplace for buyers and sellers of energy and energy related products and services; sourcing services in the nature of supply chain management; outsourcing services in the nature of arranging procurement of goods for others; business mediation being mediation of trade business for third parties in the purchase and sale of sustainable energy, including wind energy, bio-energy, solar energy and hydro-energy, electricity, gas and heat; business mediation being mediation of trade business for third parties in the purchase and sale, import and export, and wholesaling and retailing of heating, cooling and air treatment apparatus, including central heating installations, heat pumps, boilers, thermostats, stoves and furnaces, air conditioners, thermal power stations, solar collectors, solar panels, solar heat pumps, solar storage equipment, water filtering installations, filters being parts for domestic or industrial installations and parts and accessories for the aforesaid goods; business mediation being mediation of trade business for third parties with regard to the transport, distribution and supply of sustainable energy, including wind energy, bio-energy, solar energy and hydro-energy, electricity, gas and heat; business mediation being mediation of trade business for third parties regarding the conclusion of subscriptions and contracts between producers or service providers and customers; arranging of collective buying being buying club services; providing business and business marketing information to commercial businesses and to others involved in the supply of sustainable energy, electricity, gas and heat and waste processing; provision of commercial information in the field of energy; compilation and management of computerized databases of data files consisting of the collection, processing and exchange of data in relation to the supply of sustainable energy, electricity, gas and heat and waste processing; arranging special events for promotional publicity and commercial purposes; consultancy and information regarding the aforesaid services; the aforesaid services also provided via electronic networks, such as the Internet