Today more and more lands have special environmental protections, so the selection of sites must be previously studied regarding environmental aspects, otherwise the risk of the project cannot be implemented in this type of lands is very high, and that is why the contacts with the Minister of Environment are so important. Sometimes the local authorities also have their own protection regulations, so this must also be considered. The construction and exploration impacts in the lands are more elapsed, because of the immense experience of most of the EPC companies that do this type of erections for a long time.