The exercise of a general construction and renovation company, including the management of works and the execution of above-ground and underground works of building and civil engineering, including plastering, concrete works, and piping. The activity also includes the subcontracting of building works, excavations and transport, blacksmith work and metal carpentry, the execution of fences, gardening work, and the design of any building work. The company may also deal with the purchase, administration, and sale of real estate.