- The document reports the results of Gruppo Hera for the first quarter of 2018. Key highlights include revenues increasing 10.1% and EBITDA growing 5.2% compared to the first quarter of 2017. - All of Gruppo Hera's strategic business areas showed growth in the first quarter. The waste business saw revenues increase 12.9% and EBITDA grow 3.9%. Water revenues declined 4.3% but EBITDA rose 4.3%. - Gas revenues were up 19.9% and volumes sold increased 23.7% while electricity revenues grew 2.2% and volumes sold rose 10.6% compared to the first quarter of 2017.