EL.KAT. S.A. playing all these years an important role in the construction of Public and Private Works and holding a prominent position among the companies in the industry, as a result of rectitude, consistency, experience, but also strict control in construction, has developed and certified a Unified Management System , which is harmonized with the requirements of the standards ISO 9001: 2015, ISO 14001: 2015 and OHSAS 18001: 2007.