The operation of a building, civil engineering, above and below-structure, reinforced concrete, plaster, plastering and related construction company (general contractor); the performance of paving work in general; the operation of an architectural office; the preparation of technical surveys, the management of works, the performance of transportation in general, mechanical excavation and earthmoving; the purchase, sale and management of land and real estate; the purchase of interests in other enterprises or firms; any other commercial or financial transaction in re
