Investor Presentaiton

PANORAMA OF THE PRIVATE SECTOR'S PARTICIPATION IN SANITATION 2021 A NEW SOCIAL AND ECONOMIC FRONTIER FOR BRAZIL Operation, Technology and Management For inclusion in this aspect, the following differentials were considered: • • • • • . Engagement of people and processes, and results in terms of productivity Reduction of Losses Expansion of services Expansion of water supply Non-interruption of water (continuous supply) User satisfaction • Innovative technologies Ability to meet high season peaks Energy Efficiency Araçatuba (SP) Full Concession In 2020, the concessionaire GS Inima Sa- mar put into operation, by way of test, the solar sewage sludge drying plant (SRT - So- lar Aktive Drying technology) whose per- formance was better than expected. The reduction in the volume of sewage sludge has been greater than 90%, when a reduc- tion of 80% was expected. Installed in an area of 7,000 m², the so- lar sludge dryer processes 12 tons daily, that is, all the sludge remained from the STP Baguaçu. In addition to drastically re- ducing the expenses with the disposal of sludge in landfills, the new technology im- proves the quality of the material, pointing out the feasibility of its use in agriculture or soil remediation. In order to ensure a supply of water round the clock, seven days a week, to the pop- ulation of Araçatuba, concessionaire GS Inima Samar made significant investments last year. The main initiative was the con- struction of a new water treatment station with the capacity to treat 2,000 m³/h of water (checar), replacing two other existing ones that now serve 50% of the population, which works out at 100,000 people. Due for completion in 2022, the new station will in- clude a sample analysis laboratory for wa- ter quality monitoring and a modern sludge dewatering system. For 2021, the sectorization of the distribu- tion of treated water in the municipality is planned, improving the efficiency of ser- vices and reducing losses. After two years of work, the concessionaire completed the flow reversal of the sewage basin, from the Araguaína (TO) Full Concession The city of 178,000 inhabitants has an ex- clusively underground water catchment system. The concessionaire BRK Ambien- tal Saneatins operates 12 simplified treat- ment plants that make up the city's water system, using deep tube wells (DTW). Araguaína also has two sewage treatment plants and is about to get a new one, which will use Nereda technology (biological treatment by activated sludge). Still under construction, the new station will expand the sewage collection and treatment ser- vices in order to achieve universalization. northern part of Araçatuba to the Baguaçu STP, which was expanded to support the new demand, after population and indus- trial growth. Thus, two smelly treatment ponds that prevented additional industries in the region - which is now authorized - were disabled. The flow reversal has benefited more than 40 neighborhoods and integrated the rural area of Engenheiro Taveira district, in ad- dition to opening opportunities for new in- vestments in Araçatuba. Currently, 100% of residents have access ready have a collection network installed. Every day, 37 million liters of treated water are produced and about 4.7 million liters of sewage is collected and treated in the city. Investments amount to BRL 216 mil- lion in both systems. to treated water services and about 43% al- 72 73

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