EnagÃ¡s SA engages in the business of gas transmission business. It operates through the following segments: Infrastructure Activity, Technical System Operator Activity, and Unregulated Activities. The Infrastructure Activity segment refers to activities such as gas transport which is the movement of gas through the Group's transport network, composed of gas pipelines for the primary and secondary transport of gas to distribution points as owner of Spanish gas transport network; the regasification which refers to the unloading of gas where is it stored in cryogenic tanks; and the storage which is the operation of underground storage facilities. The Technical system Operator Activity segment is the development of functions ensuring the continuity and security of supply, as well as good coordination between the access, storage, transportation, and distribution points being regulated the a Royal Decree. The Unregulated Activities segment refers to all deregulated and transactions related to Group associates. The company was founded in 1972 and is headquartered in Madrid, Spain.