Sustainability Report 2021

SUMMARY Presentation Message from Management The Águas do Brasil Group Integrity and Transparency Fostering Universal Access to Sanitation Water Security and Climate Change Efficient Water Cycle Our Utility Companies About this Report GRI Summary Corporate Information ESG Strategy The global restriction scenario, generated by the Covid-19 pandemic and climate change, brought about the need for an unprecedented performance by organizations in 2021, with reflections and structural actions on the business model, governance, operations, cash management, and climate crisis. Aware of these challenges, the Águas do Brasil Group established integrated strategies to face the pandemic's impacts by implementing measures focused primarily on caring for employees and maintaining the provision of quality services to customers. This movement has intensified the improvement and creation of governance processes, institutional responsibility, and commitments to sustainable development. The enhancement of the environmental, social, and governance (ESG) practices aligned with the global United Nations (UN) Sustainable Development Goals (SDGs) was a strategy defined by the company in 2021. This commitment was materialized in the year with the adhesion to the Brazil Network of the Global Compact and unfolded with the Group's ESG Strategy review, carried out with the support of an external consultancy. 102-12 As the focus of action of the ESG Strategy, in direct relation to the business focus, is SDG 3 - Health and well-being and SDG 6 - Clean water and sanitation. The company also contributes directly to SDGs 5 (Gender Equality), 8 (Decent employment and economic growth), 11 (Sustainable cities and communities), 12 (Responsible consumption and production), 13 (Action against global climate change) and 16 (Peace, justice and effective institutions). More information on the actions developed in each pillar is available in the next chapters of this report. Sustainability Report 2021 Esg strategic pillars Integrity and transparency Foster universal access to sanitation Efficient water cycle Water security and climate change Follow the best governance, business integrity, and transparency practices. 5 GENDER EQUALITY 16 Serve and increasingly deliver solu- tions and development to the whole society through the distribution of quality water and wastewater col- lection and treatment. Accelerate the development agenda through sanitation (water and wastewater) and society's awareness of the water cycle. GOOD HEALTH AND WELL-BEING CLEAN WATER b AND SANITATION PEACE JUSTICE AND STRONG INSTITUTIONS CIFAN WATER AND SANITATION 11 STEL AND COM DECENT WORK AND ECONOMIC GROWTH 12 RESPONSIBLE AND PRODUCTION Q water security of CLEAN WATER DECENT WORK AND 6 AND SANITATION ECONOMIC GROWTH Evaluate the operations, contributing, through best practices, to the recovery of water bodies and their biodiversity. 13 ACTION 17

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