The operation of a general business. The purchase, sale and holding of real estate, as well as the management and administration of its own properties. In particular, the company may design, construct and manage buildings, superstructures and substructures, direct construction work, promote and sell residential and commercial real estate projects. The design, production, marketing, import, export, supply, assembly and representation of installations related to the production, distribution and marketing of energy of all kinds and types, in particular in the field of solar energy or more generally in the field of renewable energies; the exploitation, application and development of technologies in the field of energy production, the realization and marketing of structures of all types, in particular in the energy sector, from any source, the administration, transfer of patents, licenses on patents, trademarks, intellectual property rights and technical and industrial know-how. The purchase, supply, sale and representation of household appliances, kitchens, bathroom furniture, shutters, blinds and sunshades, elevators, heat pumps, doors, windows, tiles, floors and flooring of all kinds, products in the field of electricity, plasterboard, paints and all other building materials in general. The company may also carry out all commercial, financial or other activities that are directly or indirectly related to the purpose of the company. The company may open branches and subsidiaries in Switzerland and abroad and participate in other companies in Switzerland and abroad. The company may pledge its assets in favor of third parties.