Purpose: a) the planning, realization, operation and maintenance of: electrical, telephone, radio telephone, television and similar installations; telecommunications and data transmission networks; plants for the generation, conversion and distribution of energy; heating, ventilation and air conditioning systems; pneumatic and security systems; residential and industrial buildings; earthworks with all associated masonry and reinforced concrete works; electromechanical conveying and lifting systems; traffic safety systems; sanitary installations including kitchens and laundry rooms; waste disposal and recycling plants; b) steel construction and processing; c) the planning, construction, delivery and maintenance of turnkey plants; d) the manufacture, sale, trade and representation of components related to the aforementioned installations and systems; and e) all commercial and financial transactions related to movable and immovable property, which are necessary or useful for the execution of the aforementioned activities.