Tauil & Chequer Advogados, in association with Mayer Brown, advised Águas de Teresina Saneamento (Águas de Teresina), a concessionaire of the Aegea group, on the fourth issuance of debentures, in two series in a communicating vessel system, valued at approximately US$ 117 million.

The offering, distributed and placed by Banco Itaú, Banco BTG Pactual, XP Investimentos and Banco ABC Brasil, as underwriters, was carried out publicly with restricted distribution efforts, pursuant to CVM Rule No.476. The net resources raised through the issuance will be designated for interventions in the sanitation system of the City of Teresina (State of Piauí), to the benefit of approximately 821 thousand residents. This transaction represents the first issuance of debentures by Águas de Teresina to be carried out with the tax benefits, and the first national issuance of Aegea group carried out within the scope of its "Sustainable Transactions Framework." The “Sustainable Transactions Framework,” prepared jointly with Sitawi (an independent verification agency) that supported the certification of the debentures as sustainable (based on the environmental and social benefits generated), is also the first of Aegea group to be classified as such. The team was led by partner Luis Montes, with the participation of associate Beatriz Lavigne and intern Paulo Hirata.