86 |2020 Sustainability Report |Global challenge The challenge of being more sustainable every day In 2020 Aqualia continued to conduct materiality analysis. Studies and surveys were undertaken to determine needs of stakeholders and to make them active agents in the conversation and in order to maintain transparent communication with them. Materiality in Aqualia 2020, one step forwards in the identification of material issues and social, environmental andeconomic impacts In 2020, the materiality analysis continued through two independent phases: Firstly, research on secondary sources and secondly, conducting surveys amongst end and institutional clients. 01 Analysis phasesfor materiality 02 Analysis of secondary sources Ad hoc research: External analysis • Benchmark sector website. End clients • Main news collected by the company andcommunicated through internal channels. 3,325 surveys • Review of parliamentary questions from the 1,500by telephone Spanish Congress of Deputies. 1,825 online • Meetings with the company's main executives in which new significant issues were identifiedInstitutional clients as a result of Spanish and international regulations that could have affected the sectorand the company in 2020. 24 intvre iews in depth