Advertising; business administration and organizational project development for others; Business consultancy for power plants and incineration plants in the areas of residue and waste disposal; Secretarial services; Compilation of statistics for business purposes; Accounting services; Accounting, namely, bookkeeping; Auctioneering; Business investigations; Business marketing; Market research and market analysis; Business administration consultancy, business management consultancy, and business organization consultancy; Business consulting services relating to product distribution, marketing, operations, management, logistics, reverse logistics, supply chains, strategy, production, personnel, and retail sale matters; Business administrative consultancy, professional business consultancy, personnel management consultancy; Rental of office machinery and equipment; Arranging and concluding business negotiations for others in the field of commercial transactions; Mediation of contracts for the buying and selling of goods for others; Reproduction of documents; Organization of fairs and exhibitions for commercial or advertising purposes; Mediating contracts with electric power suppliers for the purchase and sale of electrical services for others; Rental of data processing equipment