Sustainability Report 2021

SUMMARY Presentation Message from Management The Águas do Brasil Group Águas do Paraíba (Campos dos Goytacazes/RJ) Integrity and Transparency Fostering Universal Access to Sanitation Water Security Efficient and Climate Change Water Our Utility Companies About this Report GRI Summary Corporate Information Cycle Águas de Niterói (Niterói/RJ) Águas de Niterói Grupo Aguas do Brasil RESERVATÓRIO CORREÇÃO In 2021, the Arthur Bernardes 1 (163.5 l/s) and Arthur Bernardes 2 (48.8 l/s) sewage pumping stations were completed. Before the arrival of the utility company, Campos had no wastewater treatment, and the water reached the population intermittently. Today, the population is served by 40 water production systems, which supply 102 locations through 1,798 kilometers of water mains and networks. Operating since: 1999 City population: 516 thousand Water coverage: 100% Number of WTPs: 40 Sewer coverage: 95.5% Treated wastewater: 100% Number of WWTPs: 9 For the fourth consecutive year, the city of Niterói was well evaluated in the basic sanitation indexes of the Ranking of Universal Sanitation of the Brazilian Association of Sanitary and Environmental Engineering (Abes). The municipality rose two positions in the ranking of large cities in terms of sanitation, moving from 26th to 24th position, and consolidating itself as the best in sanitation in Rio de Janeiro. Badu's sanitary wastewater system - Collector Network, Sewage Pumping Stations, and New Sewage Connections - ended the year with 25% of the work completed. An in-person service store was opened in the city center, with computerized self-service and integrated and dynamic space. Operating since: 1999 City population: 517 thousand Water coverage: 100% Sewer coverage: 95.6% Sustainability Report 2021 Treated wastewater: 100% Number of WWTPs: 9 59

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