SBSP3 Companhia de Saneamento Basico do Estado de Sao Paulo.

INDICES PROCEDURES DUE TO THE SECONDARY PUBLIC OFFERING OF SABESP S.A. (SBSP3).

We hereby inform you that, due to the Secondary Offering of SABESP (SBSP3), according to item 3.7 of the Special Practices of the Concepts and Practices Manual for B3 Indices, as of July 31, 2024 opening, new theoretical quantities will be applied in the B3 indices, with the corresponding adjustments in the respective reducers.

Index: IBXX, IGCT, IGNM, IBRA, MLCX, IVBX, UTIL, ITAG, IBXL, IBOV
Theoretical Quantity: 531.714.843

Index: IBLV
Theoretical Quantity: 1.343.833.169

Index: IDVR
Theoretical Quantity: 576.815.595

Index: IGCX
Theoretical Quantity: 1.063.429.686