Enagás, S.A. (Spanish pronunciation: [enaˈɣas], originally an initialism for Empresa Nacional del Gas) is a Spanish energy company and European TSO, which owns and operates the nation's gas grid. The firm also owns four liquefied natural gas regasification terminals in the country,[2] at Huelva, Barcelona, Cartagena and Gijon.[3] In addition, it owns 50% of the plant BBG (Bilbao) and 100% of Gascan. The chairman of Enagás is Antonio Llardén Carratalá and his Chief Executive Officer is Marcelino Oreja Arburúa. The firm's headquarters are located in Madrid. Apart from Spain, Enagás has presence in Mexico, Perú, Chile, Sweden and in the Trans Adriatic Pipeline (TAP) European project.