<SEC-DOCUMENT>0001292814-24-002644.txt : 20240703
<SEC-HEADER>0001292814-24-002644.hdr.sgml : 20240703
<ACCEPTANCE-DATETIME>20240703142705
ACCESSION NUMBER:		0001292814-24-002644
CONFORMED SUBMISSION TYPE:	6-K
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20240930
FILED AS OF DATE:		20240703
DATE AS OF CHANGE:		20240703

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			COMPANHIA DE SANEAMENTO BASICO DO ESTADO DE SAO PAULO-SABESP
		CENTRAL INDEX KEY:			0001170858
		STANDARD INDUSTRIAL CLASSIFICATION:	WATER SUPPLY [4941]
		ORGANIZATION NAME:           	01 Energy & Transportation
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			D5
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		6-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-31317
		FILM NUMBER:		241099571

	BUSINESS ADDRESS:	
		STREET 1:		RUA COSTA CARVALHO, 300
		STREET 2:		SAO PAULO
		CITY:			SP
		STATE:			D5
		ZIP:			05429-900
		BUSINESS PHONE:		011-55-11-3388-8000

	MAIL ADDRESS:	
		STREET 1:		RUA COSTA CARVALHO, 300
		STREET 2:		SAO PAULO
		CITY:			SP
		STATE:			D5
		ZIP:			05429-900
</SEC-HEADER>
<DOCUMENT>
<TYPE>6-K
<SEQUENCE>1
<FILENAME>sbs20240701_6k.htm
<DESCRIPTION>6-K
<TEXT>
<HTML>
<HEAD>
<TITLE></TITLE>
</HEAD>
<BODY>



<HR align=left color=#000000 SIZE=2 noShade>



<DIV><FONT size=1></FONT>&nbsp;</DIV>

<DIV align=center><FONT color=#000000 size=3 face="Times New Roman"><B>SECURITIES AND EXCHANGE COMMISSION </B></FONT></DIV>

<DIV align=center><FONT color=#000000 size=3 face="Times New Roman"><B>Washington, DC 20549 </B></FONT></DIV>

<DIV><FONT size=1></FONT>&nbsp;</DIV>

<HR align=center color=#000000 SIZE=1 width="25%" noShade>



<DIV><FONT size=1></FONT>&nbsp;</DIV>

<DIV align=center><FONT color=#000000 size=3 face="Times New Roman"><B>FORM 6-K</B></FONT></DIV>

<DIV><FONT size=1></FONT>&nbsp;</DIV>

<DIV align=center><FONT color=#000000 size=3 face="Times New Roman"><B>REPORT OF FOREIGN ISSUER</B><BR><B>PURSUANT TO RULE 13a-16 OR 15d-16 OF THE</B></FONT></DIV>

<DIV align=center><FONT color=#000000 size=3 face="Times New Roman"><B>SECURITIES EXCHANGE ACT OF 1934</B></FONT></DIV>

<DIV><FONT size=1></FONT>&nbsp;</DIV>

<DIV align=center>

<DIV STYLE="text-align: center"><FONT color=#000000 size=2 face="Times New Roman"><B>For&nbsp;July, 2024</B></FONT></DIV><FONT color=#000000 size=2 face="Times New Roman"><B>(Commission File No. 1-31317) </B></FONT></DIV>

<DIV><FONT size=1></FONT>&nbsp;</DIV>

<HR align=center color=#000000 SIZE=1 width="25%" noShade>



<DIV><FONT size=1></FONT>&nbsp;</DIV>

<DIV align=center><FONT color=#000000 size=3 face="Times New Roman"><B>Companhia de Saneamento B&#225;sico do Estado de S&#227;o Paulo - SABESP </B></FONT></DIV>

<DIV align=center><FONT color=#000000 size=2 face="Times New Roman"><I>(Exact name of registrant as specified in its charter) </I></FONT></DIV>

<DIV><FONT size=1></FONT>&nbsp;</DIV>

<DIV align=center></DIV>

<DIV align=center><FONT color=#000000 size=3 face="Times New Roman"><B>Basic Sanitation Company of the State of Sao Paulo - SABESP </B></FONT></DIV>

<DIV align=center><FONT color=#000000 size=2 face="Times New Roman"><I>(Translation of Registrant's name into English) </I></FONT></DIV>

<DIV><FONT size=1></FONT>&nbsp;</DIV>

<HR align=center color=#000000 SIZE=1 width="25%" noShade>

<BR>

<DIV align=center><FONT color=#000000 size=2 face="Times New Roman"><B>Rua Costa Carvalho, 300 <BR>S&#227;o Paulo, S.P., 05429-900 <BR>Federative Republic of Brazil </B></FONT></DIV>

<DIV align=center><FONT color=#000000 size=2 face="Times New Roman"><I>(Address of Registrant's principal executive offices) </I></FONT></DIV><BR>

<HR align=center color=#000000 SIZE=1 width="25%" noShade>

<BR>

<DIV align=center><FONT color=#000000 size=2 face="Times New Roman">Indicate by check mark whether the registrant files or will file <BR>annual reports under cover Form 20-F or Form 40-F. <BR><BR>Form 20-F ___X___ Form 40-F ______</FONT></DIV>

<DIV align=center><FONT color=#000000 size=2 face="Times New Roman">Indicate by check mark if the registrant is submitting the Form 6-K <BR>in paper as permitted by Regulation S-T Rule 101(b)(1)__.</FONT></DIV>

<DIV align=center><FONT color=#000000 size=2 face="Times New Roman">Indicate by check mark if the registrant is submitting the Form 6-K <BR>in paper as permitted by Regulation S-T Rule 101(b)(7)__.</FONT></DIV>

<P></P>

<P align=center><FONT size=2 face="'Times New Roman, Times, Serif'">Indicate by check mark whether the registrant by furnishing the <BR>information contained in this Form is also thereby furnishing the <BR>information to the Commission pursuant to Rule 12g3-2(b) under <BR>the Securities Exchange Act of 1934. <BR><BR>Yes ______ No ___X___</FONT></P>

<P></P>

<DIV align=center><FONT color=#000000 size=2 face="Times New Roman">If "Yes" is marked, indicated below the file number assigned to the<BR>registrant in connection with Rule 12g3-2(b):</FONT> </DIV>


<!-- Field: Page; Sequence: 1 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Gray 1pt solid"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 100%">&nbsp;</TD></TR></TABLE></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 100%">&nbsp;</TD></TR></TABLE></DIV>
    <!-- Field: /Page -->


<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; font: 11pt Arial, Helvetica, Sans-Serif; width: 100%">
<TR STYLE="vertical-align: top; text-align: left">
  <TD STYLE="width: 48%"><IMG SRC="sbs202407016k_001.jpg" ALT="">&nbsp;</TD>
  <TD STYLE="width: 4%">&nbsp;</TD>
  <TD STYLE="width: 48%"><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Companhia de Saneamento B&aacute;sico do
Estado de S&atilde;o Paulo</P>

<P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right; text-indent: 1in">CEO&rsquo;s Office</P>

<P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">R. Costa Carvalho, 300 &ndash; Pinheiros
&ndash; CEP 05429-900 &ndash; S&atilde;o Paulo - SP</P>

<P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Phone: (11) 3388-8000</P>

<P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">www.sabesp.com.br</P>
</TD></TR>
</TABLE>

<P STYLE="font: 11pt Arial, Helvetica, Sans-Serif; margin: 0 0 12pt 0.5pt; text-align: justify"></P>

<P STYLE="font: 11pt Arial, Helvetica, Sans-Serif; margin: 0 0 12pt 0.5pt; text-align: justify">&nbsp;</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0; text-align: center"><B>COMPANHIA DE SANEAMENTO B&Aacute;SICO DO ESTADO
DE S&Atilde;O PAULO &#8211; SABESP</B></P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0; text-align: center">PUBLICLY-HELD COMPANY</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0; text-align: center">Corporate Taxpayer&#8217;s ID (CNPJ): 43.776.517/0001-80</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0; text-align: center">Company Registry (NIRE): 35.3000.1683-1</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0; text-align: center">&nbsp;</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0; text-align: center">&nbsp;</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0; text-align: center"><B>MINUTES OF THE ANNUAL AND EXTRAORDINARY SHAREHOLDERS&#8217;
MEETINGS </B></P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0; text-align: center"><B>HELD ON APRIL 25, 2024</B></P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0.25in 0 0; text-align: justify"><B><U>DATE, TIME, AND VENUE</U>:</B>
Meetings of Companhia de Saneamento B&aacute;sico do Estado de S&atilde;o Paulo (&#8220;<U>Company</U>&#8221; or &#8220;<U>Sabesp</U>&#8221;)
held on April 25, 2024, at 11:00 a.m., exclusively online through the Ten Meetings Platform.</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 12pt 0 0; text-align: justify"><B><U>CALL NOTICE</U>:</B> The meetings
were regularly called through the Call Notice published in the business section of the Official Gazette of the S&atilde;o Paulo State
on March 23, 26, and 27, 2024, pages 10, 5 and 6, and 9 and 10 respectively, and in the Valor Econ&ocirc;mico newspaper on March 23, 26,
and 27, 2022, pages C9, A4, and B5, respectively.</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 12pt 0 0; text-align: justify"><B><U>MEETINGS HELD IN AN EXCLUSIVELY
DIGITAL MANNER:</U></B> The Annual and Extraordinary Shareholders&#8217; Meetings were held exclusively online, via the Ten Meetings platform,
without prejudice to the use of the remote voting form as a means to exercise voting rights, according to CVM Resolution 81, of March
29, 2022, as amended (&#8220;<U>CVM Resolution 81</U>&#8221;), as previously informed by the Company on the Call Notice and the Shareholders&#8217;
Meeting Guide. The Annual and Extraordinary Shareholders&#8217; Meetings were recorded in full and, under paragraph 1 of Article 47 of
CVM Resolution 81, the shareholders who participated in the Meetings through the electronic system were considered as attending members
and signatories of these minutes.</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 12pt 0 0; text-align: justify"><B><U>ATTENDANCE</U>:</B> Shareholders
representing 81.48% and 81.52% of the Company&#8217;s total voting shares attended the Annual and Extraordinary Shareholders' Meeting,
respectively, as confirmed by (i) the access records to the electronic platform made available by the Company; and (ii) the valid remote
voting forms received through the Depository Center of B3 S.A. - Brasil, Bolsa, Balc&atilde;o, the bookkeeping agent of the shares issued
by the Company, and the forms sent directly to the Company, according to CVM regulations. The Chair and the Secretaries formalized the
registration of shareholders&#8217; attendance based on the signatures on these minutes.</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 12pt 0 0; text-align: justify">The meeting was also attended by Eduardo
Person Pardini, Coordinator of the Statutory Audit Committee and Independent Board member of Sabesp, Andr&eacute; Isper Rodrigues Barnab&eacute;,
Fiscal Council member of Sabesp, Dario Vieira Lima and Peterson Ribeiro Castro, representatives of BDO RCS Auditores Independentes SS
Ltda., Catia Cristina Teixeira Pereira, Chief Financial Officer and Investor Relations Officer, Marcelo Miyagui, Head of Accounting, Virginia
Tavares Ribeiro, Head of Sustainability and Corporate Governance, Priscila Costa da Silva and John Emerson
da Silva, Analysts of the Investor Relations Department, Carolina Alves Cardoso Santos, Consulting Department, Beatriz Helena Almeida
Silva Lorenzi, Corporate Division, Carla Cristina Mancini and Melissa Martuscelli, lawyers of the Legal Affairs Department, Denise Rita
Sylvestre, Advisor, Gerson Ya&ccedil;umassa, Analyst of the Corporate Governance Department, Ronaldo Carlos Leite, Corporate Governance
Department, Luiz Roberto Tiberio, Head of Investor Relations, Victor Guita Campinho and Caroline Couto Matos, members of the law firm
Cescon Barrieu.</P>


<!-- Field: Page; Sequence: 2; Options: NewSection -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Gray 1pt solid"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 100%">&nbsp;</TD></TR></TABLE></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; font: 11pt Arial, Helvetica, Sans-Serif; width: 100%"><TR STYLE="vertical-align: top; text-align: left"><TD STYLE="width: 48%"><IMG SRC="sbs202407016k_001.jpg" ALT="">&nbsp;</TD><TD STYLE="width: 4%">&nbsp;</TD><TD STYLE="width: 48%"><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Companhia de Saneamento B&aacute;sico do Estado de S&atilde;o Paulo</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right; text-indent: 1in">CEO&rsquo;s Office</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">R. Costa Carvalho, 300 &ndash; Pinheiros &ndash; CEP 05429-900 &ndash; S&atilde;o Paulo - SP</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Phone: (11) 3388-8000</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">www.sabesp.com.br</P></TD></TR></TABLE></DIV>
    <!-- Field: /Page -->


<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 12pt 0 0; text-align: justify"><B><U>PRESIDING</U>:</B> Chair: Karla
Bertocco Trindade. Secretaries: Marialve de Sousa Martins and Fernanda Cirne Montorfano Gibson.</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 12pt 0 0; text-align: justify"><B><U>PUBLICATION</U>:</B> The Management
Report and Financial Statements, accompanied by the Fiscal Council&#8217;s Opinion, Independent Auditor&#8217;s Report on the Financial
Statements, and Summarized Annual Report of the Statutory Audit Committee for the fiscal year ended December 31, 2023, were published
in the Valor Econ&ocirc;mico newspaper, pages E23 and E42, on March 23, 24, and 25, 2024, and on the Official Gazette of the S&atilde;o
Paulo State, Book 2, pages 1 to 19 of the electronic version, of March 23, 2024. The documents above were also made available to shareholders
at the Company&#8217;s headquarters and on the websites of the Company, CVM, and B3, together with the Management Proposal and other pertinent
documents, according to applicable legislation.</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 12pt 0 0; text-align: justify"><B><U>AGENDA</U></B>:</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 12pt 0 0; text-align: justify"><B>ANNUAL SHAREHOLDERS&#8217; MEETING</B></P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 12pt 0 0; text-align: justify">I. Take Management accounts, examine,
discuss, and vote on the Company&#8217;s financial statements for the fiscal year ended December 31, 2023, accompanied by the Annual Management
Report, Independent Auditors&#8217; Report, Fiscal Council&#8217;s Opinion, and Summarized Annual Report of the Audit Committee.</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 12pt 0 0; text-align: justify">II. Resolve on the allocation of the net
income for the fiscal year ended December 31, 2023, and on the distribution of dividends.</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 12pt 0 0; text-align: justify">III. Set the number of members who will
compose the Board of Directors for a term of office until the Annual Shareholders&#8217; Meeting to be held in 2026.</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 12pt 0 0; text-align: justify">IV. Elect the Board of Directors members
for a term of office until the Annual Shareholders&#8217; Meeting to be held in 2026 and appoint the Chair of the Board of Directors.</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 12pt 0 0; text-align: justify">V. Resolve on the eligibility of the independent
members of the Board of Directors regarding the rules established in the Novo Mercado Regulations of B3 S.A. &#8211; Brasil, Bolsa, Balc&atilde;o,
and CVM Regulation 80/2022.</P>


<!-- Field: Page; Sequence: 3 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Gray 1pt solid"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 100%">&nbsp;</TD></TR></TABLE></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; font: 11pt Arial, Helvetica, Sans-Serif; width: 100%"><TR STYLE="vertical-align: top; text-align: left"><TD STYLE="width: 48%"><IMG SRC="sbs202407016k_001.jpg" ALT="">&nbsp;</TD><TD STYLE="width: 4%">&nbsp;</TD><TD STYLE="width: 48%"><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Companhia de Saneamento B&aacute;sico do Estado de S&atilde;o Paulo</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right; text-indent: 1in">CEO&rsquo;s Office</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">R. Costa Carvalho, 300 &ndash; Pinheiros &ndash; CEP 05429-900 &ndash; S&atilde;o Paulo - SP</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Phone: (11) 3388-8000</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">www.sabesp.com.br</P></TD></TR></TABLE></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 12pt 0 0; text-align: justify">VI. Set the number of members who will
compose the Fiscal Council for a term of office until the Annual Shareholders&#8217; Meeting to be held in 2025.</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 12pt 0 0; text-align: justify">VII. Elect the Fiscal Council members
for a term of office until the Annual Shareholders&#8217; Meeting to be held in 2025.</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 12pt 0 0; text-align: justify"><B>EXTRAORDINARY SHAREHOLDERS' MEETING</B></P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 12pt 0 0; text-align: justify">I. Appoint members to the Audit Committee.</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 12pt 0 0; text-align: justify">II. Elect the members of the Eligibility
Committee.</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 12pt 0 0; text-align: justify">III. Set the overall annual compensation
of Management, Audit Committee members, and Fiscal Council members for the 2024 fiscal year.</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 12pt 0 0; text-align: justify">IV. Amend item XXII of Article 14 of the
Company&#8217;s Bylaws to update the authority threshold of the Board of Directors to approve the execution of certain legal transactions.</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 12pt 0 0; text-align: justify">V. Amend the Bylaws by (a) excluding the
current Article 32 to remove the advisory responsibilities of the current Eligibility and Advisory Committee, (b) amending the current
Article 33 for simplification of the rules regarding the body, and (c) amending item XI of Article 14, the main section of Article 31,
Article 40 and Chapter IX to exclude the expression &#8220;and Advisory&#8221; when referring to the Eligibility Committee.</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 12pt 0 0; text-align: justify">VI. Consolidate the Company&#8217;s Bylaws,
with adjustments to cross-references and the numbering of the Articles to reflect the resolutions of items (IV) and (V) on the Agenda.</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 12pt 0 0; text-align: justify"><B><U>CLARIFICATIONS</U>:</B> The matters
on the agenda were analyzed by the State Capital Defense Council (CODEC), according to CODEC Opinion 027/2024, of April 24, 2024, whose
voting instructions were submitted by the representatives of the shareholder S&atilde;o Paulo State Treasury (&#8220;<U>State</U>&#8221;),
Laura Baracat Bedicks and Bruna Tapie Gabrielli.</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 12pt 0 0; text-align: justify"><B><U>DOCUMENT READING</U></B>: The reading
of the documents related to the agenda of the Meetings was waived, according to Articles 133 and 134 of Law 6,404/76, as the aforementioned
documents were timely made available to the Company&#8217;s shareholders. The reading of the instructions for the remote voting map was
also waived, according to paragraph 4 of Article 48 of CVM Resolution 81, and copies were made available during the meeting for consultation
by those attending the meeting.</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 12pt 0 0; text-align: justify"><B><U>DRAWING UP AND PUBLICATION OF THE
MINUTES</U></B>: Shareholders approved (i) the drawing up of these minutes in summary form, according to paragraph 1 of Article 130 of
Law 6,404/76, with the right to present separate votes, which, after being received by the presiding board of this Meeting, will be filed
at the Company's headquarters; and (ii) the publication
of the minutes omitting shareholders&#8217; signatures, according to paragraph 2 of Article 130 of Law 6,404/76.</P>


<!-- Field: Page; Sequence: 4 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Gray 1pt solid"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 100%">&nbsp;</TD></TR></TABLE></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; font: 11pt Arial, Helvetica, Sans-Serif; width: 100%"><TR STYLE="vertical-align: top; text-align: left"><TD STYLE="width: 48%"><IMG SRC="sbs202407016k_001.jpg" ALT="">&nbsp;</TD><TD STYLE="width: 4%">&nbsp;</TD><TD STYLE="width: 48%"><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Companhia de Saneamento B&aacute;sico do Estado de S&atilde;o Paulo</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right; text-indent: 1in">CEO&rsquo;s Office</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">R. Costa Carvalho, 300 &ndash; Pinheiros &ndash; CEP 05429-900 &ndash; S&atilde;o Paulo - SP</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Phone: (11) 3388-8000</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">www.sabesp.com.br</P></TD></TR></TABLE></DIV>
    <!-- Field: /Page -->


<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 12pt 0 0; text-align: justify"><B><U>RESOLUTIONS</U>: </B>After analyzing
the matters on the agenda, shareholders resolved:</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 12pt 0 0; text-align: justify"><B>I. </B>To approve, by a majority vote
of the attending shareholders, with 94.53% of votes cast in favor, represented by 526,459,170 shares; 0.09% of votes cast against, represented
by 506,944 shares; and 5.38% of abstentions, represented by 29,941,016 shares, Management accounts and the Company&#8217;s financial statements
for the fiscal year ended December 31, 2023, accompanied by the Annual Management Report, Independent Auditors&#8217; Report, Fiscal Council&#8217;s
Opinion, and Summarized Annual Report of the Audit Committee.</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 12pt 0 0; text-align: justify">Record the following manifestation of
the representative of the shareholder S&atilde;o Paulo State Treasury: &#8220;Regarding the financial statements, BDO RCS Auditores Independentes
SS Ltda. provides an unqualified opinion on its Report stating that they &#8216;properly present, in all relevant matters, the Company&#8217;s
parent company and consolidated equity and financial position as of December 31, 2023, the individual and consolidated performance of
their operations, and individual and consolidated cash flows for the year then ended, according to the accounting practices adopted in
Brazil and the International Financial Reporting Standards (IFRS) issued by the International Accounting Standards Board (IASB)&#8221;.
Accordingly, considering the report issued by the Independent Auditor, the favorable opinions of the Audit Committee and members of the
Board of Directors and Fiscal Council, and the information from the technical body of this Board that did not show any non-compliance,
the representative of the State approved the matter.</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 12pt 0 0; text-align: justify"><B>II</B>. To approve, by a majority vote
of the attending shareholders, with 98.76% of votes cast in favor, represented by 549,987,008 shares; 0.89% of votes cast against, represented
by 4,935,307 shares; and 0.36% of abstentions, represented by 1,984,917 shares, the proposal for allocation of the net income for the
2023 fiscal year, of R$ 3,523,531,017.92, as follows: (i) 5% to be invested in the creation of the Legal Reserve, in the amount of R$
176,176,550.90; and (ii) R$ 836,838,616.76 to be distributed as minimum mandatory dividends, and R$ 147,688,998.55 as additional dividends.
The remaining balance, of<BR>
R$ 2,362,826,851.71, will be transferred to the &#8220;Profit Reserve for Investments&#8221;.</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 12pt 0 0; text-align: justify">Minimum mandatory dividends and additional
dividends, of R$ 984,527,615.31, will be paid as interest on equity on June 24, 2024, to shareholders listed on the Company's shareholder
base on April 25, 2024.</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 6pt 0 0; text-align: justify">In this item, the representative of the
S&atilde;o Paulo State stated that Article 192 of Law 6,404/1976 establishes that &#8220;together with the financial statements for the
year, the Company&#8217;s management bodies shall submit to the annual shareholders&#8217; meeting, subject to the provisions of Articles
193 to 203 and the Bylaws, a proposal for the allocation of the net income of the year&#8221;.</P>


<!-- Field: Page; Sequence: 5 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Gray 1pt solid"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 100%">&nbsp;</TD></TR></TABLE></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; font: 11pt Arial, Helvetica, Sans-Serif; width: 100%"><TR STYLE="vertical-align: top; text-align: left"><TD STYLE="width: 48%"><IMG SRC="sbs202407016k_001.jpg" ALT="">&nbsp;</TD><TD STYLE="width: 4%">&nbsp;</TD><TD STYLE="width: 48%"><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Companhia de Saneamento B&aacute;sico do Estado de S&atilde;o Paulo</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right; text-indent: 1in">CEO&rsquo;s Office</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">R. Costa Carvalho, 300 &ndash; Pinheiros &ndash; CEP 05429-900 &ndash; S&atilde;o Paulo - SP</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Phone: (11) 3388-8000</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">www.sabesp.com.br</P></TD></TR></TABLE></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 6pt 0 0; text-align: justify">Accordingly, the representative of the
State approved the allocation of the net income as described below and in detail to the approval above:</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 13pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; width: 69%; border: Black 1pt solid; padding-right: -18.85pt; padding-left: 3.5pt; text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt"><B>NET INCOME FOR THE YEAR</B></FONT></TD>
    <TD STYLE="white-space: nowrap; width: 31%; border-top: Black 1pt solid; border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt"><B>&nbsp;R$ 3,523,531,017.92</B></FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; border-right: Black 1pt solid; border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: -18.85pt; padding-left: 3.5pt; text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">Legal Reserve (5% of the Net Income for the Year)</FONT></TD>
    <TD STYLE="white-space: nowrap; border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">R$ 176,176,550.90</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; border-right: Black 1pt solid; border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: -18.85pt; padding-left: 3.5pt; text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt"><B>Dividend Calculation Basis</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt"><B>R$ 3,347,354,467.02</B></FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; border-right: Black 1pt solid; border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: -18.85pt; padding-left: 3.5pt; text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">DIVIDENDS</FONT></TD>
    <TD STYLE="white-space: nowrap; border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">R$ 984,527,615.31</FONT></TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; border-right: Black 1pt solid; border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: -18.85pt; padding-left: 3.5pt; text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">&nbsp;- Minimum Mandatory Dividend - Interest on Equity</FONT></TD>
    <TD STYLE="white-space: nowrap; vertical-align: top; border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">R$ 836,838,616.76</FONT></TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; border-right: Black 1pt solid; border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: -18.85pt; padding-left: 3.5pt; text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">-&nbsp;&nbsp;Additional Dividends - Interest on Equity</FONT></TD>
    <TD STYLE="white-space: nowrap; vertical-align: top; border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">R$ 147,688,998.55</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; border-right: Black 1pt solid; border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; border-right: Black 1pt solid; border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: -18.85pt; padding-left: 3.5pt; text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">PROFIT RESERVE FOR INVESTMENTS </FONT></TD>
    <TD STYLE="white-space: nowrap; border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">R$ 2,362,826,851.71</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0.25in 0 0; text-align: justify"><B>III</B>. To approve, by a majority
vote of the attending shareholders, with 99.63% of votes cast in favor, represented by 554,833,484 shares; 0.01% of votes cast against,
represented by 82,379 shares; and 0.36% of abstentions, represented by 1,991,267 shares, the composition of the Company&#8217;s Board
of Directors at 11 (eleven) members, of which 9 (nine) members to be elected at a majority election, 1 (one) member to be elected in a
separate voting process by minority shareholders, and 1 (one) employees&#8217; representative, under Article 9 of the Company&#8217;s
Bylaws, for a term of office until the Annual Shareholders' Meeting to be held in 2026.</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 12pt 0 0; text-align: justify"><B>IV</B>. Before moving on to the election
of members to the Board of Directors, the Meeting Chair informed that the adoption of the multiple-vote process was not required by shareholders
representing more than 5% of the Company&#8217;s capital stock. Then, the Board asked the attending shareholders if they wanted to present
another slate to participate in the election in addition to the one indicated in the Management Proposal. Given that no new candidates
were presented, the Board moved on to the election by starting with the separate election and then to the general election. After the
shareholders&#8217; opinion, the following members were elected to the Board of Directors for a term of office until the Annual Shareholders'
Meeting to be held in 2026, and the Chair of the Board of Directors was also chosen:</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify"><B><U>In a separate election, as provided for
in Article 239 of Law 6,404/76,</U></B> Mr. <B>GUSTAVO ROCHA GATTASS</B>, Brazilian, married, Economist, identification document (RG)
10.605.617-9, IFP/RJ, enrolled in the individual taxpayer&#8217;s ID (CPF) under number 070.302.477-95, domiciled at Av. Epit&aacute;cio
Pessoa, n&ordm; 4560, City and State of Rio de Janeiro, CEP: 22471-004, was elected with 200,274,627 votes. The other candidate that participated
in the separate election, Mr. <B>LUIZ S&Eacute;RGIO PEGORARO</B>, Brazilian, married, Civil Engineer, enrolled in the individual taxpayer&#8217;s
ID (CPF/MF) under number 827.669.248-68, received 135 votes.</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify"><B><U>In a separate election, as provided for
in Article 9 of the Company&#8217;s Bylaws, </U></B>Mr. Aur&eacute;lio Fiorindo Filho, Brazilian, married, Engineer and Business Administrator,
identification document (RG) 16.946.107-5, SSP/SP, enrolled in the individual taxpayer&#8217;s
ID (CPF) under number 089.136.948-16, domiciled at Rua Marechal Barbacena, 1221, apto.12, Vila Reg. Feij&oacute;, City and State of S&atilde;o
Paulo, CEP: 03333-000 <B><U>was elected as the employees&#8217; representative</U></B>.</P>


<!-- Field: Page; Sequence: 6 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Gray 1pt solid"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 100%">&nbsp;</TD></TR></TABLE></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; font: 11pt Arial, Helvetica, Sans-Serif; width: 100%"><TR STYLE="vertical-align: top; text-align: left"><TD STYLE="width: 48%"><IMG SRC="sbs202407016k_001.jpg" ALT="">&nbsp;</TD><TD STYLE="width: 4%">&nbsp;</TD><TD STYLE="width: 48%"><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Companhia de Saneamento B&aacute;sico do Estado de S&atilde;o Paulo</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right; text-indent: 1in">CEO&rsquo;s Office</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">R. Costa Carvalho, 300 &ndash; Pinheiros &ndash; CEP 05429-900 &ndash; S&atilde;o Paulo - SP</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Phone: (11) 3388-8000</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">www.sabesp.com.br</P></TD></TR></TABLE></DIV>
    <!-- Field: /Page -->


<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify"><B>&nbsp;</B></P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify"><B><U>The following candidates were elected at
the general voting:</U></B></P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/150% Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 17.85pt"></TD><TD STYLE="width: 17.85pt"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">a)</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">Ms. <B>KARLA BERTOCCO TRINDADE</B>,
Brazilian, married, Administrator and Lawyer, identification document (RG) number 13.205.097-3, SSP/SP, individual taxpayer&#8217;s ID
(CPF) number 260.211.228-36, domiciled at Av. Higien&oacute;polis, 1048, apto.35, Consola&ccedil;&atilde;o, City and State of S&atilde;o
Paulo, CEP: 01238-000, was designated as the <U>Chair of the Board of Directors</U>, under paragraph 3 of Article 8 of the Company&#8217;s
Bylaws, with 94.36% of votes cast in favor, represented by 475,589,940 shares; 1.05% of votes cast against, represented by 5,266,926 shares;
and 4.59% of abstentions, represented by 23,147,769 shares; </FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/150% Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 17.85pt"></TD><TD STYLE="width: 17.85pt"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">b)</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">Mr. <B>NERYLSON LIMA DA SILVA</B>,
Brazilian, married, Economist, identification document (RG) number 3.249.051, SSP/DF, individual taxpayer&#8217;s ID (CPF) number 821.475.664-20,
domiciled at SQNW 303, Bloco L, apto.205, Setor Noroeste, Bras&iacute;lia/DF, CEP: 70683-855; </FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/150% Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">c)</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">Mr. <B>ANTONIO J&Uacute;LIO
CASTIGLIONI NETO</B>, Brazilian, married, Lawyer and Attorney to the Esp&iacute;rito Santo State, identification document (RG) 1.336.869
SSP/ES, individual taxpayer&#8217;s ID (CPF) number 054.462.337-19, domiciled at Rua Gelu Vervloet dos Santos, 280, Jardim Camburi, City
of Vit&oacute;ria, State of Esp&iacute;rito Santo, CEP: 29090-100;</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/150% Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 17.85pt"></TD><TD STYLE="width: 17.85pt"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">d)</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">Mr. <B>ANDERSON M&Aacute;RCIO
DE OLIVEIRA</B>, Brazilian, single, Lawyer, identification document (RG) number 5437309, SSP/PE, individual taxpayer&#8217;s ID (CPF)
number 009.741.924-90, domiciled at Rua Senador Vergueiro, 219, Flamengo, City and State of Rio de Janeiro, CEP: 22230-000;</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/150% Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 17.85pt"></TD><TD STYLE="width: 17.85pt"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">e)</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">Mr. <B>ANDR&Eacute; GUSTAVO
SALCEDO TEIXEIRA MENDES</B>, Brazilian, married, Engineer, identification document (RG) number 10.738.189-0, individual taxpayer&#8217;s
ID (CPF) number 071.918.857-18, domiciled at Rua Costa Carvalho, 300, Pinheiros, City and State of S&atilde;o Paulo, CEP: 05429-000;</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/150% Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 17.85pt"></TD><TD STYLE="width: 17.85pt"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">f)</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">Mr. <B>EDUARDO PERSON PARDINI</B>,
Brazilian, married, Accountant, identification document (RG) number 8.460.863, individual taxpayer&#8217;s ID (CPF) number 040.288.598-83,
domiciled at Av. Universit&aacute;rio, 585, apto.44, Alphaville, City of Santana de Parna&iacute;ba, State of S&atilde;o Paulo, CEP: 06542-089;</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/150% Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 17.85pt"></TD><TD STYLE="width: 17.85pt"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">g)</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">Ms. <B>KAROLINA FONS&Ecirc;CA
LIMA</B>, Brazilian, domestic partnership, Accountant and Lawyer, identification document (RG) number 044.160.222.012-6, individual taxpayer&#8217;s
ID (CPF) number 417.926.613-04, domiciled at Rua Osires, 03, apto.201, Jardim Renascen&ccedil;a, City of S&atilde;o Lu&iacute;s, State
of Maranh&atilde;o, CEP: 65.075-775; </FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/150% Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">h)</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">Ms. <B>ANA SILVIA CORSO MATTE</B>,
Brazilian, married, Lawyer, identification document (RG) number 10.355.696-5, SSP/SP, individual taxpayer&#8217;s ID (CPF) number 263.636.150-20,
domiciled at Avenida Dulc&iacute;dio Cardoso, 2500, Bloco
01, Apto. 1104, Barra da Tijuca, City and State of Rio de Janeiro, CEP: 22631-051; and</FONT></TD></TR></TABLE>


<!-- Field: Page; Sequence: 7 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Gray 1pt solid"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 100%">&nbsp;</TD></TR></TABLE></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; font: 11pt Arial, Helvetica, Sans-Serif; width: 100%"><TR STYLE="vertical-align: top; text-align: left"><TD STYLE="width: 48%"><IMG SRC="sbs202407016k_001.jpg" ALT="">&nbsp;</TD><TD STYLE="width: 4%">&nbsp;</TD><TD STYLE="width: 48%"><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Companhia de Saneamento B&aacute;sico do Estado de S&atilde;o Paulo</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right; text-indent: 1in">CEO&rsquo;s Office</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">R. Costa Carvalho, 300 &ndash; Pinheiros &ndash; CEP 05429-900 &ndash; S&atilde;o Paulo - SP</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Phone: (11) 3388-8000</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">www.sabesp.com.br</P></TD></TR></TABLE></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 11pt/150% Calibri, Helvetica, Sans-Serif; margin: 0 0 0 0.5in; text-align: justify"></P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/150% Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">i)</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">Mr. <B>EDUARDO FRAN&Ccedil;A
DE LA PE&Ntilde;A</B>, Brazilian, married, Administrator, identification document (RG) number 9.000.163-7 DIC/RJ individual taxpayer&#8217;s
ID (CPF) number 027.468.177-30, domiciled at Rua Jacques Felix, 450, Apt. 71&ordf;, Vila nova Concei&ccedil;&atilde;o, City and State
of S&atilde;o Paulo, CEP: 04509-001.</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">We hereby record that the appointments of Messrs.
Karla Bertocco Trindade (2nd term of office &#8211; 1st reappointment), Nerylson Lima da Silva (2nd term of office &#8211; 1st reappointment),
Antonio J&uacute;lio Castiglioni Neto (2nd term of office &#8211; 1st reappointment), Anderson M&aacute;rcio de Oliveira (2nd term of
office &#8211; 1st reappointment), Andr&eacute; Gustavo Salcedo Teixeira Mendes, as CEO, Eduardo Person Pardini (2nd term of office &#8211;
1st reappointment), Karolina Fons&ecirc;ca Lima (2nd term of office &#8211; 1st reappointment), Ana Silvia Corso Matte (1st term of office),
and Eduardo Fran&ccedil;a de La Pe&ntilde;a (1st term of office), had the due government authorization (Official Letters ATG 108, 147,
and 153/24-CCC-AG), complied with necessary legal and statutory requirements, including those provided for in Federal Law 13,303/2016,
and were certified by the Eligibility Committee (Process SEI 017.00004193/2023-48, that addresses the nomination of members to the Company's
Board of Directors, as provided for in CODEC Resolution 03/2023), according to Article 31 of the Bylaws. Mr. Gustavo Rocha Gattass (1st
term of office), elected at a separate voting process, as provided for in item I of paragraph 4 of Article 141 and Article 239 of Law
6,404/1976, and Mr. Aur&eacute;lio Fiorindo Filho (1st term of office), elected at a separate voting process by the employees, complied
with the necessary legal and statutory requirements, including those provided for in Federal Law 13,303/2016, and attested by the Eligibility
Committee, under Article 31 of the Bylaws.</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">The Board members shall exercise their duties
under the Bylaws, with a unified term of office until the meeting held to approve the 2025 accounts, and the investiture in the position
shall observe the requirements, impediments, and procedures outlined in current regulations, which shall be verified by the Company upon
investiture. The instruments of investiture (drawn up in the proper book) will be signed and the clearance statements will be filed at
the Company's headquarters. Compensation will be set based on CODEC&#8217;s guidelines, as resolved at this General Shareholders&#8217;
Meeting. Regarding the declaration of properties, the applicable state regulations must be observed.</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 6pt 0 0; text-align: justify"><B>V.</B> The following Board of Directors
members were qualified as independent members of the Board of Directors for the purposes of the Novo Mercado Regulation and CVM Resolution
80, in addition to Mr. Gustavo Rocha Gattass, elected at a separate voting process:</P>


<!-- Field: Page; Sequence: 8 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Gray 1pt solid"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 100%">&nbsp;</TD></TR></TABLE></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; font: 11pt Arial, Helvetica, Sans-Serif; width: 100%"><TR STYLE="vertical-align: top; text-align: left"><TD STYLE="width: 48%"><IMG SRC="sbs202407016k_001.jpg" ALT="">&nbsp;</TD><TD STYLE="width: 4%">&nbsp;</TD><TD STYLE="width: 48%"><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Companhia de Saneamento B&aacute;sico do Estado de S&atilde;o Paulo</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right; text-indent: 1in">CEO&rsquo;s Office</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">R. Costa Carvalho, 300 &ndash; Pinheiros &ndash; CEP 05429-900 &ndash; S&atilde;o Paulo - SP</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Phone: (11) 3388-8000</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">www.sabesp.com.br</P></TD></TR></TABLE></DIV>
    <!-- Field: /Page -->

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/150% Calibri, Helvetica, Sans-Serif; margin-top: 6pt; margin-bottom: 10pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">a)</FONT></TD><TD><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">Mr. <B>Eduardo Person Pardini</B>, with 99.13% of votes
cast in favor, represented by 552,037,292 shares; 0.12% of votes cast against, represented by 676,888 shares; and 0.75% of abstentions,
represented by 4,191,348 shares;</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/150% Calibri, Helvetica, Sans-Serif; margin-top: 6pt; margin-bottom: 10pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">b)</FONT></TD><TD><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">Ms. <B>Karolina Fons&ecirc;ca Lima</B>, with 99.15% of votes
cast in favor, represented by 552,196,363 shares; 0.09% of votes cast against, represented by 517,817 shares; and 0.75% of abstentions,
represented by 4,191,348 shares.</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/150% Calibri, Helvetica, Sans-Serif; margin-top: 6pt; margin-bottom: 10pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">c)</FONT></TD><TD><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">Ms. <B>Karla Bertocco Trindade</B>, with 98.71% of votes
cast in favor, represented by 549,693,895 shares; 0.39% of votes cast against, represented by 2,148,846 shares; and 0.91% of abstentions,
represented by 5,062,787 shares.</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/150% Calibri, Helvetica, Sans-Serif; margin-top: 6pt; margin-bottom: 10pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">d)</FONT></TD><TD><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">Ms. <B>Ana Silvia Corso Matte</B>, with 99.15% of votes
cast in favor, represented by 552,196,363 shares; 0.09% of votes cast against, represented by 517,817 shares; and 0.75% of abstentions,
represented by 4,191,348 shares; and</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/150% Calibri, Helvetica, Sans-Serif; margin-top: 6pt; margin-bottom: 10pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">e)</FONT></TD><TD><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">Mr. <B>Eduardo Fran&ccedil;a de La Pe&ntilde;a</B>, with
98.89% of votes cast in favor, represented by 550,696,834 shares; 0.35% of votes cast against, represented by 1,956,017 shares; and 0.76%
of abstentions, represented by 4,252,677 shares.</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify"><B>VI.</B> To approve, by a majority vote of
the attending shareholders, with 99.5% of votes cast in favor, represented by 554,079,579 shares; 0.00% of votes cast against, represented
by 27,407 shares; and 0.5% of abstentions, represented by 2,798,515 shares, the composition of the Company&#8217;s Fiscal Council at 5
(five) sitting members and alternates in the same number.</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify"><B>VII.</B> Elect the Fiscal Council members
for a term of office until the Annual Shareholders&#8217; Meeting to be held in 2025, as follows:</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/150% Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">a)</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">In a separate voting process,
as provided for in Article 240 of Law 6,404/1976, <B>GISOMAR FRANCISCO DE BITTENCOURT MARINHO</B>, Brazilian, married, Economist, identification
document (RG) 05624530-1 IFP/RJ, individual taxpayer&#8217;s ID (CPF) number 804.095.557-20, domiciled at Avenida dos Flamboyants da Pen&iacute;nsula,
300, Bloco 1, apto. 1501, Barra da Tijuca, City and State of Rio de Janeiro, CEP: 22776-070, and <B>RICARDO BERTUCCI</B>, Brazilian, married,
Accountant, identification document (RG) 424.096 &#8211; SESP/RO, individual taxpayer&#8217;s ID (CPF) number 003.673.579-50, domiciled
at Rua Marechal Deodoro, 630, 15&ordm; andar, City of Curitiba, State of Paran&aacute;, CEP: 04738-000, were elected with 208,003,287
votes as Sitting Fiscal Council member and Alternate Fiscal Council member, respectively. </FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/150% Calibri, Helvetica, Sans-Serif; margin-top: 6pt; margin-bottom: 6pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 17.85pt"></TD><TD STYLE="width: 17.85pt"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">b)</FONT></TD><TD STYLE="text-align: justify; padding-right: 2.4pt"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">The general
election elected the single slate created by the sitting and alternate candidates appointed to the Fiscal Council, with 349,316,679 votes:</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 35.4pt; text-align: justify"><B><U>Sitting Members:</U> CARLOS
AUGUSTO GOMES NETO</B>, Brazilian, married, bachelor in Information Systems, identification document (RG) number 2.934.090 &#8211; SSP/DF,
individual taxpayer&#8217;s ID (CPF) number 005.720.919-74, domiciled at Rua Tuiuti, 589 apto. 174, Bl 05, Tatuap&eacute;, City and State of
S&atilde;o Paulo, CEP: 03081-900; <B>EDUARDO ALEX BARBIN BARBOSA</B>, Brazilian, married, Lawyer, identification document (RG) number
21.750.999-X &#8211; SSP/SP, individual taxpayer&#8217;s ID (CPF) number 246.377.168-29, domiciled at Rua Boa Vista, 170, 2&ordm; andar,
Bloco 1, Centro Hist&oacute;rico, City and State of S&atilde;o Paulo, CEP: 01014-000; <B>ANDR&Eacute; ISPER RODRIGUES BARNAB&Eacute;</B>,
Brazilian, single, Lawyer, identification document (RG) number 47.871.103-7 SSP/SP, individual taxpayer&#8217;s ID (CPF) number 409.636.828-81,
domiciled at Rua Atenas, 373, Bar&atilde;o Geraldo, City of Campinas, State of S&atilde;o Paulo, CEP: 13085-558; and <B>NAT&Aacute;LIA
RESENDE ANDRADE &Aacute;VILA</B>, Brazilian, married, Federal Attorney, identification document (RG) number 408.3352 SSP/DF, individual
taxpayer&#8217;s ID (CPF) number 731.102.641-53, domiciled at Av. Prof. Frederico Herman J&uacute;nior, 345, Alto de Pinheiros, City and
State of S&atilde;o Paulo, CEP: 05459-010.</P>


<!-- Field: Page; Sequence: 9 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Gray 1pt solid"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 100%">&nbsp;</TD></TR></TABLE></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; font: 11pt Arial, Helvetica, Sans-Serif; width: 100%"><TR STYLE="vertical-align: top; text-align: left"><TD STYLE="width: 48%"><IMG SRC="sbs202407016k_001.jpg" ALT="">&nbsp;</TD><TD STYLE="width: 4%">&nbsp;</TD><TD STYLE="width: 48%"><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Companhia de Saneamento B&aacute;sico do Estado de S&atilde;o Paulo</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right; text-indent: 1in">CEO&rsquo;s Office</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">R. Costa Carvalho, 300 &ndash; Pinheiros &ndash; CEP 05429-900 &ndash; S&atilde;o Paulo - SP</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Phone: (11) 3388-8000</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">www.sabesp.com.br</P></TD></TR></TABLE></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 13pt/150% Times New Roman, Times, Serif; margin: 0 0 0 35.4pt; text-align: justify"></P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 35.4pt; text-align: justify"><B><U>Alternate Members:</U></B> respectively,
<B>GUSTAVO CARVALHO TAPIA LIRA</B>, Brazilian, married, Administrator, identification document (RG) number 27.058.959.-3 SSP/SP, individual
taxpayer&#8217;s ID (CPF) number 270.533.078-08, domiciled at Rua Tocantin&oacute;polis, 101, Vila Ribeiro de Barros, City and State of
S&atilde;o Paulo, CEP: 05307-070; <B>ITAMAR PAULO DE SOUZA J&Uacute;NIOR</B>, Brazilian, married, Advertising professional, identification
document (RG) number 30.413.675-X &#8211; SSP/SP, individual taxpayer&#8217;s ID (CPF) number 269.849.258-94, domiciled at Rua Octavio
de Moraes Lopes, 71 ap.16 bloco-B, Jardim Sarah, City and State of S&atilde;o Paulo, CEP: 05382-070; <B>DIEGO ALLAN VIEIRA DOMINGUES</B>,
Brazilian, single, Mechanical Engineer, identification document (RG) number 27.476.792-2, individual taxpayer&#8217;s ID (CPF) number
320.328.238-02, domiciled at Rua Corrientes, 280, Lapa, City and State of S&atilde;o Paulo, CEP: 05076-010; and <B>PEDRO MONNERAT HEIDENFELDER</B>,
Brazilian, single, Attorney of the S&atilde;o Paulo State, identification document (RG) number 11.605.884-3 DETRAN/RJ, individual taxpayer&#8217;s
ID (CPF) number 120.263.157-60, domiciled at Av. Prof. Frederico Herman J&uacute;nior, 345, Alto de Pinheiros, City and State of S&atilde;o
Paulo, CEP: 05459-010.</P>

<P STYLE="font: 13pt/150% Times New Roman, Times, Serif; margin: 0 0 0 35.4pt; text-align: justify">&nbsp;</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">The appointments of Messrs. Carlos Augusto Gomes
Neto (1st term of office); Eduardo Alex Barbin Barbosa (2nd term of office &#8211; 1st reappointment); Andr&eacute; Isper Rodrigues Barnab&eacute;
(2nd term of office &#8211; 1st reappointment); Nat&aacute;lia Resende Andrade &Aacute;vila (2nd term of office &#8211; 1st reappointment);
Gustavo Carvalho Tapia Lira (2nd term of office &#8211; 1st reappointment); Itamar Paulo de Souza J&uacute;nior (2nd term of office &#8211;
1st reappointment); Diego Allan Vieira Domingues (2nd term of office &#8211; 1st reappointment); Pedro Monnerat Heidenfelder (2nd term
of office &#8211; 1st reappointment) had the due government authorization (Official Letters ATG 108/24-CC, 147/24-CC, and 153/24-CC),
complied with legal and statutory requirements, including those provided for in Federal Law 13,303/2016, were attested by the Eligibility
Committee, under Article 31 of the Bylaws (Process SEI 017.00004192/2023-01, that addresses the nomination of members to the Company&#8217;s
Fiscal Council, as provided for in CODEC Resolution 03/2023). Messrs. Gisomar Francisco
de Bittencourt Marinho and Ricardo Bertucci, elected at a separate voting process, complied with the necessary legal and statutory requirements,
including those provided for in Federal Law 13,303/2016, and attested by the Eligibility Committee, under Article 31 of the Bylaws.</P>


<!-- Field: Page; Sequence: 10 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Gray 1pt solid"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 100%">&nbsp;</TD></TR></TABLE></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; font: 11pt Arial, Helvetica, Sans-Serif; width: 100%"><TR STYLE="vertical-align: top; text-align: left"><TD STYLE="width: 48%"><IMG SRC="sbs202407016k_001.jpg" ALT="">&nbsp;</TD><TD STYLE="width: 4%">&nbsp;</TD><TD STYLE="width: 48%"><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Companhia de Saneamento B&aacute;sico do Estado de S&atilde;o Paulo</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right; text-indent: 1in">CEO&rsquo;s Office</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">R. Costa Carvalho, 300 &ndash; Pinheiros &ndash; CEP 05429-900 &ndash; S&atilde;o Paulo - SP</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Phone: (11) 3388-8000</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">www.sabesp.com.br</P></TD></TR></TABLE></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 13pt/150% Times New Roman, Times, Serif; margin: 0; text-align: justify"></P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">The elected Fiscal Council members shall perform
their duties until the next Annual Shareholders&#8217; Meeting. If a sitting member is unable to attend a meeting, the respective alternate
must do so and, if the alternate member is absent, one of the other alternate members must be called. The investiture in the position
shall observe the requirements, impediments, and procedures provided for in current regulations, which shall be verified by the Company
upon investiture. Regarding the declaration of properties, the applicable state regulations must be observed.</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify"><B><U>EXTRAORDINARY SHAREHOLDERS' MEETING:</U></B></P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify"><B>I. </B>To approve, by a majority vote of the
attending shareholders, with 99.33% of votes cast in favor, represented by 552,477,383 shares; 0.03% of votes cast against, represented
by 180.497 shares; and 0.64% of abstentions, represented by 3,551,033 shares, according to Article 27 of the Company&#8217;s Bylaws, the
appointment of the following members for the Audit Committee: <B>EDUARDO PERSON PARDINI</B>, Brazilian, married, Accountant, identification
document (RG) number 8.460.863, individual taxpayer&#8217;s ID (CPF) number 040.288.598-83, domiciled at Av. Universit&aacute;rio, 585,
apto.44, Alphaville, City of Santana de Parna&iacute;ba, State of S&atilde;o Paulo, CEP: 06542-089, as <U>Coordinator and Financial Specialist</U>,
under paragraph four of Article 26 of the Company&#8217;s Bylaws; <B>KAROLINA FONS&Ecirc;CA LIMA</B>, Brazilian, divorced, Accountant
and Lawyer, identification document (RG) number 044.160.222.012-6, individual taxpayer&#8217;s ID (CPF) number 417.926.613-04, domiciled
at Rua Osires, 03, apto.201, Jardim Renascen&ccedil;a, City of S&atilde;o Lu&iacute;s, State of Maranh&atilde;o, CEP: 65.075-775; and
<B>KARLA BERTOCCO TRINDADE</B>, Brazilian, married, Administrator and Lawyer, identification document (RG) number 13.205.097-3, SSP/SP,
individual taxpayer&#8217;s ID (CPF) number 260.211.228-36, domiciliada na Av. Higien&oacute;polis, 1048, apto.35, Consola&ccedil;&atilde;o,
City and State of S&atilde;o Paulo, CEP: 01238-000.</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">The appointments had the due government
authorization (Official Letters ATG 108/24-CC, 147/24-CC, and 153/24-CC), complied with necessary legal and statutory requirements,
including those provided for in Federal Law 13,303/2016 and State Decree 62,349/2016, and were attested by the Eligibility and
Advisory Committee. The member appointed as coordinator complies with the requirement provided for in paragraph 3 of Article 26 of
the Bylaws for having recognized experience in matters of corporate accounting. The members of the Audit Committee shall exercise
their duties under the Company&#8217;s Bylaws, and the investiture in the position will observe the requirements, impediments, and
procedures outlined in Law 6,404/76 and other current regulations, which shall be verified
by the Company upon investiture. Compensation will be set based on CODEC&#8217;s guidelines, as resolved at this Shareholders&#8217; Meeting.
Regarding the declaration of properties, the applicable state regulations must be observed.</P>


<!-- Field: Page; Sequence: 11 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Gray 1pt solid"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 100%">&nbsp;</TD></TR></TABLE></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; font: 11pt Arial, Helvetica, Sans-Serif; width: 100%"><TR STYLE="vertical-align: top; text-align: left"><TD STYLE="width: 48%"><IMG SRC="sbs202407016k_001.jpg" ALT="">&nbsp;</TD><TD STYLE="width: 4%">&nbsp;</TD><TD STYLE="width: 48%"><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Companhia de Saneamento B&aacute;sico do Estado de S&atilde;o Paulo</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right; text-indent: 1in">CEO&rsquo;s Office</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">R. Costa Carvalho, 300 &ndash; Pinheiros &ndash; CEP 05429-900 &ndash; S&atilde;o Paulo - SP</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Phone: (11) 3388-8000</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">www.sabesp.com.br</P></TD></TR></TABLE></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 13pt/150% Times New Roman, Times, Serif; margin: 0; text-align: justify"></P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify"><B>II. </B>To approve, by a majority vote of
the attending shareholders, according to Article 33 of the Company&#8217;s Bylaws, the election of the following members for the Eligibility
Committee: <B>JARDEL ROLANDO ALMEIDA GARCIA</B>, Brazilian, married, Lawyer, identification document (RG) number 09.893.746-9, individual
taxpayer&#8217;s ID (CPF) number 074.389.068-10, domiciled at Rua Costa Carvalho, 300, Pinheiros, City and State of S&atilde;o Paulo,
CEP: 05429-060, with 99.16% of votes cast in favor, represented by 552,535,515 shares; 0.08% of votes cast against, represented by 428,807
shares; and 0.76% of abstentions, represented by 4,241,476 shares; <B>MICHAEL BRESLIN</B>, Brazilian, married, bachelor in Data Processing,
identification document (RG) number 22.190.791-9, individual taxpayer&#8217;s ID (CPF) number 249.839.528-88, domiciled at Rua Carlos
Weber, 87 - Apto. 111, Torre B, Vila Leopoldina, City and State of S&atilde;o Paulo, CEP: 05303-000, with 99.14% of votes cast in favor,
represented by 552,433,384 shares; 0.1% of votes cast against, represented by 578,807 shares; and 0.75% of abstentions, represented by
4,193,607 shares; and <B>NILTON JO&Atilde;O DOS SANTOS</B>, Brazilian, married, bachelor in Data Processing, identification document (RG)
number 14.251.146-8, individual taxpayer&#8217;s ID (CPF) number 066.838.158-28, domiciled at Rua Euclides Pacheco, 1141, apto. 162, Tatuap&eacute;,
City and State of S&atilde;o Paulo, CEP: 03311-002, with 99.13% of votes cast in favor, represented by 552,362,184 shares; 0.12% of votes
cast against, represented by 650,007 shares; and 0.75% of abstentions, represented by 4,193,607 shares.</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">The appointments had the due government authorization
(Official Letter ATG 151/24-CC-AG), complied with necessary legal and statutory requirements, including those provided for in Federal
Law 13,303/2016 and State Decree 62,349/2016, and were attested by the Technical Note CODEC 003/2024 (Process SEI 017.00009901/2023-37,
that addresses the appointment of members for the Company&#8217;s Eligibility and Advisory Committee, as provided for in CODEC Resolution
03/2023). Investiture in the positions shall be subject to the requirements, impediments, and procedures provided for in the Bylaws, including
regarding the delivery of the declaration of properties. The Eligibility Committee members shall exercise their duties with no fixed term
of office and are not entitled to any compensation.</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify"><B>&nbsp;</B></P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify"><B>III</B>. To approve, by a majority vote of
the attending shareholders with 93.45% of votes cast in favor, represented by 520,722,929 shares; 4.98% of votes cast against, represented
by 27,767,454 shares; and 1.56% of abstentions, represented by 8,719,215 shares, the overall annual compensation of Management and members
of the Audit Committee and Fiscal Council for 2024, as provided for in Articles 152 and 162 of Law&nbsp;6,404/76, and Article 46 of the
Bylaws, in the amount of up to R$ 10,548,666.11 (ten million, five hundred and forty-eight thousand, six hundred and sixty-six reais,
and eleven centavos), under the terms of the Management Proposal.</P>


<!-- Field: Page; Sequence: 12 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Gray 1pt solid"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 100%">&nbsp;</TD></TR></TABLE></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; font: 11pt Arial, Helvetica, Sans-Serif; width: 100%"><TR STYLE="vertical-align: top; text-align: left"><TD STYLE="width: 48%"><IMG SRC="sbs202407016k_001.jpg" ALT="">&nbsp;</TD><TD STYLE="width: 4%">&nbsp;</TD><TD STYLE="width: 48%"><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Companhia de Saneamento B&aacute;sico do Estado de S&atilde;o Paulo</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right; text-indent: 1in">CEO&rsquo;s Office</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">R. Costa Carvalho, 300 &ndash; Pinheiros &ndash; CEP 05429-900 &ndash; S&atilde;o Paulo - SP</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Phone: (11) 3388-8000</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">www.sabesp.com.br</P></TD></TR></TABLE></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 13pt/150% Times New Roman, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">To record that the representative of the State
voted to set the compensation, bonuses, benefits, and advantages for the Management (members of the Executive Board and Board of Directors),
and for the members of the Fiscal Council and Audit Committee, under the Company&#8217;s institutional compensation policy, according
to CODEC Resolution 001/2024, published in the Official Gazette of the S&atilde;o Paulo State on March 21, 2024, approving the maximum
amount for the overall compensation, considering the current composition of the statutory bodies, which includes the overall compensation
and other benefits contained in the aforementioned resolution, in addition to the corresponding charges, with individual monthly compensations
as follows: R$ 60,000.00 for the Chief Executive Officer; R$ 50,000.00 for the Executive Officers;<BR>
R$ 11,464.20 for the Board of Directors members; R$ 19,107.00 for the Chair of the Board of Directors;<BR>
R$ 19,107.00 for the Audit Committee members, and R$ 6,582.00 for the Fiscal Council members. The matter was approved under these terms.</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify"><B>&nbsp;</B></P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify"><B>IV.</B> To approve, by a majority vote of
the attending shareholders, with 99.61% of votes cast in favor, represented by 555,013,548 shares; 0.02% of votes cast against, represented
by 98.338 shares; and 0.38% of abstentions, represented by 2,097,824 shares, amend item XXII of Article 14 of the Company&#8217;s Bylaws
to update the authority threshold of the Board of Directors from R$ 150,000,000.00 to R$ 166,500,000.00 for approval of the execution
of certain legal businesses detailed in the aforementioned item.</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">The wording of the Bylaws with the amendment
shall now be:</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 35.4pt; text-align: justify"><B><I>ARTICLE 14 </I></B><I>&#8211;
In addition to the duties provided by law, the Board of Directors shall also:</I></P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 35.4pt; text-align: justify"><I>[...]</I></P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 35.4pt; text-align: justify"><B><I>XXII. </I></B><I>previously
authorize the execution of any legal transactions when the amount involved exceeds R$ 166,500,000.00 (one hundred and sixty-six million
and five hundred thousand reais), including the acquisition, disposal, or encumbrance of assets, the obtaining of loans and financing,
the assumption of obligations in general, and associations with other legal entities. This amount will be updated at the beginning of
each year, according to the variation of the IPCA-IBGE from the previous year, to be established at the minutes of the first Board of
Directors&#8217; Meeting of the respective year, after the index is made available, with rounding permitted.</I></P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 35.4pt; text-align: justify"><I>&nbsp;</I></P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify"><B>V.</B> Approve, by a majority vote of the
attending shareholders, with 91.22% of votes cast in favor, represented by 508,292,051 shares; 8.29% of votes cast against, represented
by 46,177,669 shares; and 0.49% of abstentions, represented by 2,739,991 shares, the reform of the Company&#8217;s Bylaws to implement
the following changes: (a) exclude the current Article 32 to remove the advisory responsibilities of the current Eligibility and Advisory
Committee; (b) amend the current Article 33 to simplify the rules related to the body; and (c) amend item XI of Article 14, the main
section of Article 31, Article 40, and Chapter IX to exclude the expression &#8220;and Advisory&#8221; when referring to the Eligibility
Committee.</P>


<!-- Field: Page; Sequence: 13 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Gray 1pt solid"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 100%">&nbsp;</TD></TR></TABLE></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; font: 11pt Arial, Helvetica, Sans-Serif; width: 100%"><TR STYLE="vertical-align: top; text-align: left"><TD STYLE="width: 48%"><IMG SRC="sbs202407016k_001.jpg" ALT="">&nbsp;</TD><TD STYLE="width: 4%">&nbsp;</TD><TD STYLE="width: 48%"><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Companhia de Saneamento B&aacute;sico do Estado de S&atilde;o Paulo</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right; text-indent: 1in">CEO&rsquo;s Office</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">R. Costa Carvalho, 300 &ndash; Pinheiros &ndash; CEP 05429-900 &ndash; S&atilde;o Paulo - SP</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Phone: (11) 3388-8000</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">www.sabesp.com.br</P></TD></TR></TABLE></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 13pt/150% Times New Roman, Times, Serif; margin: 0; text-align: justify"></P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">The aforementioned Articles shall have the following
wordings:</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 35.45pt; text-align: justify"><B><I>ARTICLE 14 </I></B><I>&#8211;
In addition to the duties provided by law, the Board of Directors shall also:</I></P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 35.45pt; text-align: justify"><I>[...]</I></P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 35.45pt; text-align: justify"><B><I>XI.</I></B><I> evaluate the
Company&#8217;s Executive Officers, under item III of Article 13 of Federal Law 13,303/2016, and may receive methodological and procedural
support from the Eligibility Committee;</I></P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 35.45pt; text-align: justify"><I>&nbsp;</I></P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 35.45pt; text-align: justify"><B><I>CHAPTER IX</I></B></P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 35.45pt; text-align: justify"><B><I>ELIGIBILITY COMMITTEE</I></B></P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 35.45pt; text-align: justify"><B><I>ARTICLE 31</I></B><I> &#8211;
The Company shall have an Eligibility Committee, responsible for overseeing the nomination and evaluation process of administrators and
Fiscal Council members, under Article 10 of Federal Law 13,303/2016.</I></P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 35.45pt; text-align: justify"><I>[...]</I></P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 35.45pt; text-align: justify"><B><I>ARTICLE 32</I></B><I> &#8211;
The Committee shall be composed of up to 3 (three) members, elected at a General Meeting, with no fixed term of office.</I></P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 35.45pt; text-align: justify"><B><I>ARTICLE 39 </I></B><I>&#8211;
For the purposes of this chapter, &#8220;statutory bodies&#8221; include the Board of Directors, the Executive Board, the Fiscal Council,
the Audit Committee, and the Eligibility Committee.</I></P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify"><B>VI.</B> To approve, by a majority vote of
the attending shareholders, with 93.75% of votes cast in favor, represented by 522,405,235 shares; 5.76% of votes cast against, represented
by 32,071,510 shares; and 0.49% of abstentions, represented by 2,732,966 shares, the consolidation of the Company&#8217;s Bylaws, under
<U>ATTACHMENT I</U> hereto.</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify"><B><U>DISSENTING VOTES, VOTES CAST, AND ABSTENTIONS:</U></B>
The Presiding Board received and recorded the dissenting votes, votes cast, and abstentions, which will be filed at the Company.</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify"><B><U>CLOSURE AND SIGNATURE OF THE MINUTES</U>:</B>
There being no further matters to address, the Chair adjourned the Annual and Extraordinary Shareholders&#8217; Meetings, which were drawn
up, read, approved, and signed by the Chair and Secretaries. The Chair and the Secretaries of the Presiding Board, according to paragraphs
1 and 2 of Article 47 of CVM Resolution 81, recorded the shareholders who participated in the Meetings through remote voting forms and
through the digital platform made available by the Company, as listed in <U>ATTACHMENT II</U>.</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">&nbsp;</P>


<!-- Field: Page; Sequence: 14 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Gray 1pt solid"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 100%">&nbsp;</TD></TR></TABLE></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; font: 11pt Arial, Helvetica, Sans-Serif; width: 100%"><TR STYLE="vertical-align: top; text-align: left"><TD STYLE="width: 48%"><IMG SRC="sbs202407016k_001.jpg" ALT="">&nbsp;</TD><TD STYLE="width: 4%">&nbsp;</TD><TD STYLE="width: 48%"><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Companhia de Saneamento B&aacute;sico do Estado de S&atilde;o Paulo</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right; text-indent: 1in">CEO&rsquo;s Office</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">R. Costa Carvalho, 300 &ndash; Pinheiros &ndash; CEP 05429-900 &ndash; S&atilde;o Paulo - SP</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Phone: (11) 3388-8000</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">www.sabesp.com.br</P></TD></TR></TABLE></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 12pt 0 0; text-align: center">This is a free English translation of the
minutes drawn up in the Book of Minutes of the Company&#8217;s Shareholders&#8217; Meetings.</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 12pt 0 0; text-align: center">&nbsp;</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 12pt 0 0; text-align: center">S&atilde;o Paulo, April 25, 2024.</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 12pt 0 0; text-align: center">&nbsp;</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 12pt 0 0; text-align: left"><U>Presiding</U>:</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="width: 100%; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">&nbsp;</P>
    <P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">&nbsp;</P>
    <P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0; text-align: left">KARLA BERTOCCO TRINDADE</P>
    <P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0; text-align: left">Chair</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0; text-align: left">&nbsp;</P>
    <P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">&nbsp;</P>
    <P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">MARIALVE DE SOUSA MARTINS</P>
    <P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">Secretary</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">&nbsp;</P>
    <P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">&nbsp;</P>
    <P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">FERNANDA CIRNE MONTORFANO GIBSON</P>
    <P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">Secretary</P></TD></TR>
  </TABLE>
<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0; text-align: center"><B>&nbsp;</B></P>


<!-- Field: Page; Sequence: 15 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Gray 1pt solid"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 100%">&nbsp;</TD></TR></TABLE></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; font: 11pt Arial, Helvetica, Sans-Serif; width: 100%"><TR STYLE="vertical-align: top; text-align: left"><TD STYLE="width: 48%"><IMG SRC="sbs202407016k_001.jpg" ALT="">&nbsp;</TD><TD STYLE="width: 4%">&nbsp;</TD><TD STYLE="width: 48%"><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Companhia de Saneamento B&aacute;sico do Estado de S&atilde;o Paulo</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right; text-indent: 1in">CEO&rsquo;s Office</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">R. Costa Carvalho, 300 &ndash; Pinheiros &ndash; CEP 05429-900 &ndash; S&atilde;o Paulo - SP</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Phone: (11) 3388-8000</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">www.sabesp.com.br</P></TD></TR></TABLE></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0; text-align: left"><B>&nbsp;</B></P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 2.4pt 0 0; text-align: center"><B>ATTACHMENT I</B></P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 2.4pt 0 0; text-align: center">&nbsp;</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 2.4pt 0 0; text-align: center">Consolidated Bylaws</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 2.4pt 0 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: center"><B>BYLAWS</B></P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: center"><B>CHAPTER I</B></P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: center"><B>NAME, HEADQUARTERS, PURPOSE AND TERM</B></P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B>ARTICLE 1 </B>- The joint stock company
called Companhia de Saneamento B&aacute;sico do Estado de S&atilde;o Paulo &#8211; SABESP is a constituent part of the indirect management
of the State of S&atilde;o Paulo, being ruled by these Bylaws, by Federal Laws 6,404, of December 15, 1976, and 13,303, of June 30, 2016,
and other applicable legal provisions.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 14.1pt 12pt 21.3pt; text-align: justify"><B>Paragraph 1 &#8211; </B>With
the company&#8217;s listing on the <I>Novo Mercado</I> special segment of B3 S.A. &#8211; Brasil, Bolsa, Balc&atilde;o (&#8220;B3&#8221;),
the Company, its shareholders, including the controlling shareholder, managers and members of the fiscal committee are subject to the
provisions of the <I>Novo Mercado</I> Listing Rules of B3 (&#8220;<I>Novo Mercado</I> Rules&#8221;).</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.5pt; text-align: justify"><B>Paragraph 2 - </B>The Company shall
exist for an indefinite term.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.5pt; text-align: justify"><B>Paragraph 3 - </B>The Company&#8217;s
headquarters are located at Rua Costa Carvalho, 300, in the capital of the state of S&atilde;o Paulo.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.5pt; text-align: justify"><B>Paragraph 4 &#8211; </B>Whenever
necessary to achieve the corporate purpose and in view of its operation area, the Company may open, institute, maintain, transfer or close
down branches, facilities, agencies, offices, main branches, representation or yet designate representatives, in respect to the legal
provisions and regulations.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B>ARTICLE 2 &#8211; </B>The Company&#8217;s
main corporate purpose is to render basic sanitation services in view of its universal service in the state of S&atilde;o Paulo, without
losing long-term financial sustainability, comprising the following activities: water supply, sanitary sewage, drainage and handling of
urban rain water, urban cleaning and handling of solid waste, in addition to other related activities, including the planning, operation
and maintenance of production systems, storage, preservation and trading of energy, to itself or third parties and trading of services,
products, benefits and rights that, direct or indirectly, result from its assets, projects and activities, and it may also operate as
a subsidiary anywhere in the country or abroad providing the services mentioned above.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.5pt; text-align: justify"><B>Sole Paragraph </B>&#8211; In order
to carry out the corporate purpose, the Company may constitute wholly-owned subsidiaries, have a stake in investment funds and enter into
a joint venture with, by any mean, other public or private corporations, including upon the acquisition of consortium or subscription
of a minority or majority installment of the capital stock.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: center"><B>CHAPTER II</B></P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: center"><B>CAPITAL STOCK AND SHARES</B></P>

<P STYLE="font: 13pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><FONT STYLE="font-size: 9pt"><B>ARTICLE 3
</B>&#8211;The capital stock is fifteen billion reais (R$15,000,000,000.00), fully </FONT>subscribed and <FONT STYLE="font-size: 9pt">subscribed
and paid-up, divided in six hundred and eighty-three million, five hundred and nine thousand, eight hundred and sixty-nine (683,509,869)
exclusively one-class common shares, all registered, book-entry and with no par value.</FONT></P>


<!-- Field: Page; Sequence: 16 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Gray 1pt solid"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 100%">&nbsp;</TD></TR></TABLE></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; font: 11pt Arial, Helvetica, Sans-Serif; width: 100%"><TR STYLE="vertical-align: top; text-align: left"><TD STYLE="width: 48%"><IMG SRC="sbs202407016k_001.jpg" ALT="">&nbsp;</TD><TD STYLE="width: 4%">&nbsp;</TD><TD STYLE="width: 48%"><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Companhia de Saneamento B&aacute;sico do Estado de S&atilde;o Paulo</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right; text-indent: 1in">CEO&rsquo;s Office</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">R. Costa Carvalho, 300 &ndash; Pinheiros &ndash; CEP 05429-900 &ndash; S&atilde;o Paulo - SP</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Phone: (11) 3388-8000</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">www.sabesp.com.br</P></TD></TR></TABLE></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.5pt; text-align: justify"><B>Paragraph 1 &#8211; </B>The issuance
of founder&#8217;s shares and preferred shares is forbidden.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 14.1pt 12pt 21.3pt; text-align: justify"><B>Paragraph 2 &#8211; </B>The
Company may directly charge the shareholder the cost for the share transferring service, in view of the maximum limits established by
the legislation in force, as well as authorize the very collection per trustee in charge of the maintenance of book-entry shares.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B>ARTICLE 4 &#8211; </B>Each common share
is entitled to one vote at the Shareholders&#8217; General Meeting&#8217;s resolutions.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: center"><B>CHAPTER III</B></P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: center"><B>SHAREHOLDERS&#8217; GENERAL MEETING</B></P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B>ARTICLE 5 &#8211; </B>The Shareholders&#8217;
General Meeting shall be called, instated and shall resolve, pursuant to the law, on all matters of the Company&#8217;s interest.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 14.1pt 12pt 21.3pt; text-align: justify"><B>Paragraph 1 </B>&#8211; The
Shareholders&#8217; General Meeting shall also be called by the Chairman of the Board of Directors or by the majority of acting board
members.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.5pt; text-align: justify"><B>Paragraph 2 </B>&#8211; The Shareholders&#8217;
General Meeting shall be chaired by the Chairman of the Board of Directors or, in case of absence, by any other attending member; the
Chairman of the Board of Directors is responsible for appointing the member who shall replace him at presiding the Shareholders&#8217;
General Meeting.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 14.1pt 12pt 21.3pt; text-align: justify"><B>Paragraph 3 &#8211; </B>The
chairman of the general meeting will choose, among the attendees, one or more secretaries, being allowed the use of own advisement in
the company.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 14.1pt 12pt 21.3pt; text-align: justify"><B>Paragraph 4 &#8211; </B>The
minutes of the general meeting shall be drawn up in the summary format, as provided for in article 130, paragraph 1, of the Federal Law
6,404/76.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 14.1pt 12pt 21.3pt; text-align: justify"><B>Paragraph 5 &#8211; </B>All
documents to be analyzed or discussed at the general meeting must be available to the shareholders at the Company&#8217;s headquarters
and at B3, at least one (1) month before the meeting.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.5pt; text-align: justify"><B>Paragraph 6 </B>&#8211; The proof
of the conditions of shareholder may occur at any moment until the start of the Shareholders&#8217; General Meeting, by means of the presentation
of the identity document, the receipt issued by the depositary financial institution of the book-entry shares informing the respective
number and, in the event of constitution of an attorney-in-fact, of the competent power of attorney with the notarized signature and granted
for less than one year.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: center"><B>CHAPTER IV</B></P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: center"><B>MANAGEMENT OF THE COMPANY</B></P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 14.1pt 12pt 0.25pt; text-align: justify"><B>ARTICLE 6 &#8211; </B>The Company
may be managed by the Board of Directors and by the executive board.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: center"><B>CHAPTER V</B></P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: center"><B>BOARD OF DIRECTORS</B></P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 14.1pt 12pt 0; text-align: justify"><B>ARTICLE 7 </B>&#8211; The board of
directors is the joint resolution committee responsible for the superior guidance of the company.</P>


<!-- Field: Page; Sequence: 17 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Gray 1pt solid"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 100%">&nbsp;</TD></TR></TABLE></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; font: 11pt Arial, Helvetica, Sans-Serif; width: 100%"><TR STYLE="vertical-align: top; text-align: left"><TD STYLE="width: 48%"><IMG SRC="sbs202407016k_001.jpg" ALT="">&nbsp;</TD><TD STYLE="width: 4%">&nbsp;</TD><TD STYLE="width: 48%"><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Companhia de Saneamento B&aacute;sico do Estado de S&atilde;o Paulo</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right; text-indent: 1in">CEO&rsquo;s Office</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">R. Costa Carvalho, 300 &ndash; Pinheiros &ndash; CEP 05429-900 &ndash; S&atilde;o Paulo - SP</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Phone: (11) 3388-8000</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">www.sabesp.com.br</P></TD></TR></TABLE></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 14.1pt 12pt 0; text-align: justify"><B><U>Members, investiture and term
of office</U></B></P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 14.1pt 12pt 0; text-align: justify"><B>ARTICLE 8 &#8211;</B> The Board of
Directors shall be composed of a minimum of seven (7) and maximum of eleven (11) members, elected and removed from office by the General
Meeting, all with a two (2)-year unified term of office as from the election date, allowing, at most, three (3) consecutive reappointments.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.5pt; text-align: justify"><B>Paragraph 1</B> - Upon reaching the
limit of reelections referred to in the head of this article, the member&#8217;s return to the Board of Directors may only occur after
a period of two (2) years.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.5pt; text-align: justify"><B>Paragraph 2 </B>&#8211; The Company&#8217;s
CEO shall integrate the Board of Directors, while holding such position.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.5pt; text-align: justify"><B>Paragraph 3 </B>&#8211; It will be
incumbent upon the Shareholders&#8217; General Meeting electing the Board of Directors to establish the total number of positions to be
filled, within the maximum limit provided for in these Bylaws, and to appoint its Chairman, who cannot be the Company&#8217;s CEO that
is also elected a board member.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.5pt; text-align: justify"><B>Paragraph 4</B> &#8211; The controlling
shareholder will be entitled to elect the majority of its members, pursuant to item &#8220;a&#8221; of Article 116, of Federal Law 6,404/1976.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.3pt; text-align: justify"><B>Paragraph 5 </B>&#8211; The minimum
availability required from the Chairman of the Board of Directors shall correspond to thirty (30) hours per month.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B><U>Representative of the employees</U></B></P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B>ARTICLE 9 </B>&#8211; The participation
of one (1) representative of the employees in the Company&#8217;s Board of Directors, with the same term of office as the other members,
is ensured.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 14.1pt 12pt 21.3pt; text-align: justify"><B>Paragraph 1 </B>&#8211; The
representative member of the employees shall be chosen by the employees&#8217; votes in a direct election, with prohibited automatic reappointment,
with the administrative cooperation of the Company whenever requested.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.5pt; text-align: justify"><B>Paragraph 2 </B>&#8211; The Internal
Regulation of the Board of Directors, when providing for the exercise as the employees&#8217; representative, must strictly comply with
the requirements and prohibitions of Article 17, of Federal Law 13,303/2016.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B><U>Representative of the Minority Shareholders</U></B></P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B>ARTICLE 10</B> &#8211; The participation
of a representative of the minority shareholders in the Company&#8217;s Board of Directors, with the same term of office as the other
members, is ensured, pursuant to Article 239 of Federal Law 6,404/1976, and of Article 19, of Federal Law 13,303/2016.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B><U>Independent Members</U></B></P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B>ARTICLE 11</B> &#8211; The Board of Directors
will have the participation of at least two (2) or twenty-five (25%) percent of independent members, pursuant to the provisions of Article
22 of Federal Law 13,303/2016 and as established in the <I>Novo Mercado</I> Rules, and the characterization of the nominees for membership
for the Board of Directors as an independent member shall be established by the Shareholders&#8217;s General Meeting that elects them.</P>


<!-- Field: Page; Sequence: 18 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Gray 1pt solid"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 100%">&nbsp;</TD></TR></TABLE></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; font: 11pt Arial, Helvetica, Sans-Serif; width: 100%"><TR STYLE="vertical-align: top; text-align: left"><TD STYLE="width: 48%"><IMG SRC="sbs202407016k_001.jpg" ALT="">&nbsp;</TD><TD STYLE="width: 4%">&nbsp;</TD><TD STYLE="width: 48%"><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Companhia de Saneamento B&aacute;sico do Estado de S&atilde;o Paulo</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right; text-indent: 1in">CEO&rsquo;s Office</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">R. Costa Carvalho, 300 &ndash; Pinheiros &ndash; CEP 05429-900 &ndash; S&atilde;o Paulo - SP</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Phone: (11) 3388-8000</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">www.sabesp.com.br</P></TD></TR></TABLE></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.5pt; text-align: justify"><B>Paragraph 1 &#8211; </B>The member
elected by the minority shareholders through separate vote, will also be considered independent, pursuant to Article 141, Paragraphs 4
and 5 and Article 239 of Federal Law 6,404/1976, and Article 22, Paragraph 4, of Federal Law 13,303/2016.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.5pt; text-align: justify"><B>Paragraph 2</B> &#8211; In case the
application of the minimum percentage referred in the caput results in a fraction number of board members, such number shall be rounded
to the immediately higher number.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B><U>Vacancy and replacements</U></B></P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><FONT STYLE="text-transform: uppercase"><B>ARTICLE
12</B></FONT> &#8211; In the event of vacancy in any position of the member of the Board of Directors before the end of the term of office,
the Board of Directors itself may resolve on the choice of the substitute to complete the term of office of the replaced person and the
resolution will be subject to the subsequent approval by the next Shareholders&#8217; General Meeting.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.5pt; text-align: justify"><B>Sole Paragraph</B> &#8211; In the
event of vacancy in the position of the Board member representative of the employees, the member shall be replaced by another representative
of the employees, pursuant to Paragraphs 1 and 2 of Article 9 of these Bylaws.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B><U>Operation</U></B></P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B>ARTICLE 13 </B>&#8211; The Board of Directors
will meet, on an ordinary basis, once a month and, on an extraordinary basis, whenever necessary to the Company&#8217;s interests.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.5pt; text-align: justify"><B>Paragraph 1 </B>&#8211; The Board
of Directors&#8217; meetings shall be called by its Chairman, or by the majority of acting Board members, upon writing or electronic correspondence
to all Board members and also to the State, by means of the CODEC, in, at least, ten (10) days in advance and the call notice must include
the date, time and matters of the agenda.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.5pt; text-align: justify"><B>Paragraph 2 </B>&#8211; The Chairman
of the Board of Directors shall supervise so that the Board members individually receive, with the due antecedence in relation to the
date of the meeting, the documentation with the necessary information to allow the discussion and resolution of the agenda.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.5pt; text-align: justify"><B>Paragraph 3 </B>&#8211; The Board
of Directors&#8217; meetings shall be instated upon the attendance of the majority of its acting Members, being the Chairman incumbent
of presiding the activities or, in his absence, another Board member appointed by him.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.5pt; text-align: justify"><B>Paragraph 4</B> &#8211; The Chairman
of the Board of Directors, at his own initiative or at the request of any Board member, may convene the Company&#8217;s executive officers
to attend the meetings and provide clarifications or information on the matters to be resolved on. The requests must be addressed to the
Company's CEO, and the call notice must include the date, time and matters of the agenda.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.5pt; text-align: justify"><B>Paragraph 5</B> &#8211; The matters
submitted to the appraisal of the Board of Directors shall be instructed with the approved proposal of the executive board or of the competent
bodies of the Company, and with the legal opinion, whenever necessary for the examination of the matter.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.5pt; text-align: justify"><B>Paragraph 6 </B>&#8211; The annual
or extraordinary meeting shall be held in person and may, if so resolved by the Chairman of the Board of Directors or by the majority
of the acting Board members, be held by means of teleconference, videoconference or other qualified means of will manifestation of the
absent Board member, whose vote will be considered valid for all effects, without adverse effects to the subsequent drawing up and execution
of the respective minutes.</P>


<!-- Field: Page; Sequence: 19 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Gray 1pt solid"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 100%">&nbsp;</TD></TR></TABLE></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; font: 11pt Arial, Helvetica, Sans-Serif; width: 100%"><TR STYLE="vertical-align: top; text-align: left"><TD STYLE="width: 48%"><IMG SRC="sbs202407016k_001.jpg" ALT="">&nbsp;</TD><TD STYLE="width: 4%">&nbsp;</TD><TD STYLE="width: 48%"><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Companhia de Saneamento B&aacute;sico do Estado de S&atilde;o Paulo</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right; text-indent: 1in">CEO&rsquo;s Office</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">R. Costa Carvalho, 300 &ndash; Pinheiros &ndash; CEP 05429-900 &ndash; S&atilde;o Paulo - SP</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Phone: (11) 3388-8000</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">www.sabesp.com.br</P></TD></TR></TABLE></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.5pt; text-align: justify"><B>Paragraph 7 </B>&#8211; The Board
of Directors shall resolve by majority of votes of the attending members of the meeting, prevailing, in case of tie, the proposal that
counts on the vote of the Board member presiding the activities.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.5pt; text-align: justify"><B>Paragraph 8 </B>&#8211; The meetings
of the board of directors will have as secretary whoever their chairman appoints and all resolutions will be recorded in minutes drawn
up and registered in the proper book, and a copy of them must immediately be included in the SIEDESC.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.5pt; text-align: justify"><B>Paragraph 9 </B>&#8211; The extract
of the minutes shall be filed in the trade board and published, whenever it has resolutions destined to produce effects before third parties.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B><U>Duties</U></B></P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B>ARTICLE 14 </B>&#8211; In addition
to the duties provided by law, the Board of Directors shall also:</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 5%"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">I.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">to approve the strategic planning,
including the updated long-term strategy with analysis of risks and opportunities for at least the next five (5) years, the action guidelines,
the result targets and the performance evaluation indexes;</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 0.5in; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 5%"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">II.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">to approve the business plan
for the next fiscal year, the annual and multi-year programs, with indication of the respective projects;</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 5%"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">III.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">to approve the budgets of expenditures
and investments of the Company, with indication of the sources and uses of funds;</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 5%"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">IV.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">to express its opinion on the
management&#8217; report and on the accounts of the executive board, pursuant to Article 142, item V, of Federal Law 6,404/1976;</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 5%"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">V.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">to promote annually the analysis
of the fulfillment of targets and results in the execution of the business plan of item II and the long-term strategy of item I of this
Article, and shall publish its conclusions and inform them to the Legislative Assembly and the Audit Court of the State, excluding strategic
information from this obligation, whose disclosure may prove to be detrimental to the interest of the Company; </FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 5%"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">VI.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">to prepare the policy of distribution
of dividends, considering the public interest that justified the creation of the Company, submitting it to the Shareholders&#8217; General
Meeting;</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 39.45pt; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 5%"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">VII.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">to assess and approve the following
institutional policies: </FONT></TD></TR></TABLE>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 0 42.55pt; text-align: justify">a) disclosure of material information;</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 0 42.55pt; text-align: justify">b) trading with securities;</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 0 42.55pt; text-align: justify">c) appointment of members of the Board
of Directors, advisory committees, executive office and of the fiscal committee;</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 0 42.55pt; text-align: justify">d) internal audit;</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 0 42.55pt; text-align: justify">e) compliance;</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 0 42.55pt; text-align: justify">f) corporate risk management;</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 0 42.55pt; text-align: justify">g) compensation; and</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 42.55pt; text-align: justify">h) establish spokesperson policy;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 5%"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">VIII.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">to annually approve and review
the preparation and disclosure of the policy on transactions with related parties;</FONT></TD></TR></TABLE>


<!-- Field: Page; Sequence: 20 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Gray 1pt solid"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 100%">&nbsp;</TD></TR></TABLE></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; font: 11pt Arial, Helvetica, Sans-Serif; width: 100%"><TR STYLE="vertical-align: top; text-align: left"><TD STYLE="width: 48%"><IMG SRC="sbs202407016k_001.jpg" ALT="">&nbsp;</TD><TD STYLE="width: 4%">&nbsp;</TD><TD STYLE="width: 48%"><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Companhia de Saneamento B&aacute;sico do Estado de S&atilde;o Paulo</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right; text-indent: 1in">CEO&rsquo;s Office</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">R. Costa Carvalho, 300 &ndash; Pinheiros &ndash; CEP 05429-900 &ndash; S&atilde;o Paulo - SP</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Phone: (11) 3388-8000</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">www.sabesp.com.br</P></TD></TR></TABLE></DIV>
    <!-- Field: /Page -->

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 5%"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">IX.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">to resolve on the personnel
policy, including the determination of the staff, plan of positions and salaries, general collective negotiation conditions, opening of
a competitive civil-service examination to fill positions vacant and Profit Sharing Program; </FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 5%"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">X.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">to resolve on the policy of
prices and tariffs of goods and services rendered by the Company, respecting the regulatory framework of the respective sector;</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 5%"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">XI.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">to evaluate the Company&#8217;s
Executive Officers, under item III of Article 13 of Federal Law 13,303/2016, and may receive methodological and procedural support from
the Eligibility Committee;</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 5%"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">XII.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">to supervise the execution of
the plans, programs, projects and budgets; </FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 5%"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">XIII.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">to inspect the compliance with
the specific targets and results to be achieved, undertaken by the members of the executive board upon their investiture;</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 0.5in; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 5%"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">XIV.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">to establish the drafting of
the annual governance letter and endorse it;</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 5%"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">XV.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">to define goals and priorities
of public policies compatible with the company&#8217;s operation area and its corporate purpose;</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 5%"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">XVI.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">to authorize, the opening, installation
and extinguishment of branches, facilities, agencies, main branches, offices and representations;</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 5%"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">XVII.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">resolve on the capital stock
increase within the limit authorized by these Bylaws, establishing the respective subscription and payment conditions;</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 5%"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">XVIII.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">to establish the maximum indebtedness
limit of the company;</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 5%"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">XIX.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">resolve on the issuance of common
debentures non-convertible into shares and without real security and, the other types of debentures, on the conditions mentioned in Paragraph
1, Article 59 of Federal Law 6,404/1976, as well as resolve on the issuance of a promissory notes for public distribution offerings;</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 5%"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">XX.</FONT></TD><TD STYLE="text-align: justify; padding-right: 14.1pt"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">to resolve
on the declaration of interest on own capital and/or distribution of dividends due to the result for the current year, for the year ended
or profit reserve, without adverse effects to the subsequent ratification of the general meeting; </FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 5%"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">XXI.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">to propose to the Shareholders&#8217;
General Meeting the payment of interest on equity or the distribution of dividends due to the result of the fiscal year concluded; </FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 5%"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">XXII.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">to previously authorize the
execution of any legal transactions when the amount involved exceeds R$ 166,500,000.00 (one hundred and sixty-six million and five hundred
thousand reais), including the acquisition, disposal, or encumbrance of assets, the obtaining of loans and financing, the assumption of
obligations in general, and associations with other legal entities. This amount will be updated at the beginning of each year, according
to the variation of the IPCA-IBGE from the previous year, to be established at the minutes of the first Board of Directors&#8217; Meeting
of the respective year, after the index is made available, with rounding permitted.</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 5%"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">XXIII.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">to authorize the incorporation
of a wholly-owned subsidiary or the interest in the capital of other companies, except the competence of the Shareholders&#8217; General
Meeting provided for in article 256 of Law 6,404/1976, as well as establish the overall guidance to be followed by this subsidiary/company;</FONT></TD></TR></TABLE>


<!-- Field: Page; Sequence: 21 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Gray 1pt solid"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 100%">&nbsp;</TD></TR></TABLE></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; font: 11pt Arial, Helvetica, Sans-Serif; width: 100%"><TR STYLE="vertical-align: top; text-align: left"><TD STYLE="width: 48%"><IMG SRC="sbs202407016k_001.jpg" ALT="">&nbsp;</TD><TD STYLE="width: 4%">&nbsp;</TD><TD STYLE="width: 48%"><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Companhia de Saneamento B&aacute;sico do Estado de S&atilde;o Paulo</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right; text-indent: 1in">CEO&rsquo;s Office</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">R. Costa Carvalho, 300 &ndash; Pinheiros &ndash; CEP 05429-900 &ndash; S&atilde;o Paulo - SP</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Phone: (11) 3388-8000</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">www.sabesp.com.br</P></TD></TR></TABLE></DIV>
    <!-- Field: /Page -->

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 5%"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">XXIV.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">to approve the hiring of civil
liability insurance in favor of the members of the statutory bodies, employees, agents and mandatories of the Company;</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 5%"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">XXV.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">to grant licenses to officers,
in compliance with the pertinent regulation;</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 5%"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">XXVI.</FONT></TD><TD STYLE="text-align: justify; padding-right: 14.1pt"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">to approve
its Internal Regulations, which clearly defines its responsibilities and duties and prevents situations of conflict with the executive
board, notably with the CEO, in addition to approving the internal regulation of the executive board and of the audit committee; and any
other statutory committee, pursuant to article 160 of Federal Law 6,404/1976;</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 14.1pt 12pt 0.5in; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 5%"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">XXVII.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">authorize the company to buy
back its own shares, under the current legislation and previously hearing the fiscal committee</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 5%"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">XXVIII.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">to previously express itself
about any proposal of the executive board or issues to be submitted to the Shareholders&#8217; General Meeting;</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 5%"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">XXIX.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">to call the examination of any
issues comprised in the competence of the executive board and issue a binding guidance on it;</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 5%"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">XXX.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">to discuss, approve, and monitor
decisions involving practices of corporate governance, stakeholder relationships, people management policies, integrity program, Code
of Conduct and Integrity of agents;</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 5%"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">XXXI.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">to appoint a statutory Officer
who will lead the area of compliance and risk management, bound to the CEO;</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 5%"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">XXXII.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">to maintain direct contact with
the Compliance Area in situations where the members of the Board of Directors are suspected of being involved in irregularities or when
the CEO does not meet the obligation to adopt the necessary measures in relation to the situation reported to him, to take the appropriate
measures; </FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 5%"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">XXXIII.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">to approve the Code of Conduct
and Integrity, to be prepared and disclosed by the Company, in compliance with the guidelines established by CODEC; </FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 5%"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">XXXIV.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">to supervise the institution
of a prior consultation mechanism to resolve doubts on the application of the Code of Conduct and Integrity, which will be available on
the website, providing the ethical standards expected from the management, members of the fiscal committee, members of the statutory committees,
employees, agents and third-parties hired; </FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 5%"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">XXXV.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">to implement and supervise the
risk management and internal control systems established for the prevention and mitigation of the main risks to which the Company is exposed,
including risks related to the integrity of the accounting and financial information and those related to corruption and fraud;</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 5%"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">XXXVI.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">to develop and inform a substantiated
opinion on any public offer for the acquisition of shares which has the Company's shares within fifteen (15) days as of the publication
of the call notice for the respective public offer, on which shall notify, at least: </FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 0.5in; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 36pt"></TD><TD STYLE="width: 13.65pt">i.</TD><TD STYLE="text-align: justify">the convenience and the appropriateness of the public offer as to the interest of group of its shareholders,
including with regard to the price and potential impacts to the liquidity of their securities;</TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 36pt"></TD><TD STYLE="width: 13.65pt">ii.</TD><TD STYLE="text-align: justify">the strategic plans revealed by offeror in relation to the company;</TD></TR></TABLE>


<!-- Field: Page; Sequence: 22 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Gray 1pt solid"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 100%">&nbsp;</TD></TR></TABLE></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; font: 11pt Arial, Helvetica, Sans-Serif; width: 100%"><TR STYLE="vertical-align: top; text-align: left"><TD STYLE="width: 48%"><IMG SRC="sbs202407016k_001.jpg" ALT="">&nbsp;</TD><TD STYLE="width: 4%">&nbsp;</TD><TD STYLE="width: 48%"><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Companhia de Saneamento B&aacute;sico do Estado de S&atilde;o Paulo</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right; text-indent: 1in">CEO&rsquo;s Office</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">R. Costa Carvalho, 300 &ndash; Pinheiros &ndash; CEP 05429-900 &ndash; S&atilde;o Paulo - SP</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Phone: (11) 3388-8000</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">www.sabesp.com.br</P></TD></TR></TABLE></DIV>
    <!-- Field: /Page -->

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt">
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 36pt">&nbsp;</TD>
  <TD STYLE="text-align: justify; width: 13.65pt">iii.</TD>
  <TD STYLE="text-align: justify">with respect to alternatives of the public offerings acceptance available in the market. The Opinion must include the substantiated opinion
favorable or contrary to the acceptance of the public offer and warn that the responsibility lies on each shareholder for the final decision
on the referred acceptance.</TD></TR>
</TABLE>


<P STYLE="font: 11pt/115% Calibri, Helvetica, Sans-Serif; margin: 0 0 12pt 0.5in; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 5%">XXXVII.</TD><TD STYLE="text-align: justify">to promote the annual disclosure of the integrated or sustainability report;</TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 5%">XXXVIII.</TD><TD STYLE="text-align: justify">to disclose and encourage the use of the institutional whistleblower channel;</TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 5%"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">XXXIX.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">to approve the proposal to increase
the expenditure limit for advertising and sponsorship prepared by the joint executive board, pursuant to the provisions of Article 93,
Paragraph 2, of Federal Law 13,303/2016; and</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 5%"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">XL.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">to elect and remove members
of the executive board and of the audit committee.</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: center"><B>CHAPTER VI</B></P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: center"><B>EXECUTIVE BOARD</B></P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B><U>Members and Term</U></B></P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B>ARTICLE 15 </B>&#8211; The executive board
shall be composed of seven (7) members, with CEO, People and Corporate Management Officer, Chief Financial Officer and Investor Relations
Officer, Engineering and Innovation Officer, Regulation and New Business Officer, Operation and Maintenance Officer and Customer Officer,
with their respective duties set forth herein, all with a two (2) year unified term of office and with three (3) consecutive reelections
allowed.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.5pt; text-align: justify"><B>Paragraph 1 </B>&#8211; The officers
must undertake to commit with their specific targets and results to be invested in their positions in the executive board.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.5pt; text-align: justify"><B>Paragraph 2</B> &#8211; By means
of the Executive Board's Internal Charter, the Board of Directors shall define the duties and functions of each Officer, as the case may
be.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B><U>Vacancy and replacements</U></B></P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B>ARTICLE 16 </B>&#8211; In the absences or
temporary impediments of any Officer, the CEO shall appoint another member of the executive board to cumulate the functions.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.5pt; text-align: justify"><B>Sole paragraph </B>&#8211; In his
absences and temporary impediments, the CEO will be replaced by the Officer appointed by him and, if there is no appointment, by the Officer
responsible for the financial and investor relations area.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B>ARTICLE 17 </B>- In case of vacancy, and
until a replacement is elected, the CEO shall be replaced by the Officer responsible for the financial and investor relations area.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B><U>Operation</U></B></P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B>ARTICLE 18 </B>&#8211; The executive board
will meet, on an ordinary basis, at least twice (2) a month and, on an extraordinary basis, by call of the CEO or of other two Officers.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.5pt; text-align: justify"><B>Paragraph 1 </B>&#8211; The meetings
of the executive board will be instated with the attendance of at least half of the acting Officers, considering approved the matter with
the agreement of the majority of the attendees; in the event of a tie, the proposal with the vote of the CEO will prevail.</P>


<!-- Field: Page; Sequence: 23 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Gray 1pt solid"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 100%">&nbsp;</TD></TR></TABLE></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; font: 11pt Arial, Helvetica, Sans-Serif; width: 100%"><TR STYLE="vertical-align: top; text-align: left"><TD STYLE="width: 48%"><IMG SRC="sbs202407016k_001.jpg" ALT="">&nbsp;</TD><TD STYLE="width: 4%">&nbsp;</TD><TD STYLE="width: 48%"><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Companhia de Saneamento B&aacute;sico do Estado de S&atilde;o Paulo</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right; text-indent: 1in">CEO&rsquo;s Office</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">R. Costa Carvalho, 300 &ndash; Pinheiros &ndash; CEP 05429-900 &ndash; S&atilde;o Paulo - SP</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Phone: (11) 3388-8000</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">www.sabesp.com.br</P></TD></TR></TABLE></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.5pt; text-align: justify"><B>Paragraph 2 </B>&#8211; The resolutions
of the executive board will be recorded in minutes drawn up in the company&#8217;s records and signed by all attending Officers.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.5pt; text-align: justify"><B>Paragraph 3 </B>&#8211; The CEO may,
in the call for the meeting, allow the participation of the officers by telephone, videoconference, or other means of communication which
may ensure the effective participation and the authenticity of their vote; the officer who virtually participates in the meeting will
be considered present and his vote will be valid for all legal effects, without adverse effects to the subsequent drawing up and signature
of the respective minutes.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B><U>Duties</U></B></P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B>ARTICLE 19 </B>&#8211; In addition to the
duties set forth by Law, it is incumbent upon the joint executive board:</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">I.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">To prepare and submit to the
approval of the Board of Directors:</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 0.75in; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 49.85pt"></TD><TD STYLE="width: 21.3pt"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">a)</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">the proposal for the strategic
planning, including the updated long-term strategy with analysis of risks and opportunities for at least the next five (5) years, the
action guidelines, the result targets and the performance evaluation indexes;</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 71.15pt; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 49.85pt"></TD><TD STYLE="width: 21.3pt"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">b)</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">the proposal for the business
plan for the next fiscal year, the annual and multi-year programs, with indication of the respective projects;</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 49.85pt"></TD><TD STYLE="width: 21.3pt"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">c)</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">the Company&#8217;s annual budget
for expenditures and investments, with the indication of the sources and uses of funds, as well as their changes;</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 49.85pt"></TD><TD STYLE="width: 28.35pt"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">d)</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">the evaluation of the performance
result of the Company&#8217;s activities;</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 49.85pt"></TD><TD STYLE="width: 28.35pt"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">e)</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">the Company&#8217;s quarterly
reports jointly with the balance sheets and other financial statements;</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 49.85pt"></TD><TD STYLE="width: 28.35pt"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">f)</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">annually, the draft of the management
report together with the balance sheets and other financial statements and respective notes, with the report of independent auditors and
the proposal of allocation of the income for the year;</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 49.85pt"></TD><TD STYLE="width: 28.35pt"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">g)</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">the interim balance sheets,
quarterly;</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 49.85pt"></TD><TD STYLE="width: 28.35pt"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">h)</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">the Internal Regulation of the
executive board;</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 49.85pt"></TD><TD STYLE="width: 28.35pt"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">i)</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">proposal of capital increase
and of amendment to the bylaws, listening to the fiscal council, when the case may be;</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 49.85pt"></TD><TD STYLE="width: 28.35pt"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">j)</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">the proposal for the personnel
policy; and</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 49.85pt"></TD><TD STYLE="width: 28.35pt"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">k)</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">the proposal to increase the
expenditure limit for advertising and sponsorship, pursuant to the provisions of Article 93, Paragraph 2, of Federal Law 13,303/2016.</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">II.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">Approve:</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 0.5in; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 49.85pt"></TD><TD STYLE="width: 28.35pt"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">a)</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">the technical-economic evaluation
criteria for investment projects, with the respective responsibility delegation plans for their execution and implementation;</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 78.2pt; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 49.85pt"></TD><TD STYLE="width: 28.35pt"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">b)</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">the chart of accounts;</FONT></TD></TR></TABLE>


<!-- Field: Page; Sequence: 24 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Gray 1pt solid"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 100%">&nbsp;</TD></TR></TABLE></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; font: 11pt Arial, Helvetica, Sans-Serif; width: 100%"><TR STYLE="vertical-align: top; text-align: left"><TD STYLE="width: 48%"><IMG SRC="sbs202407016k_001.jpg" ALT="">&nbsp;</TD><TD STYLE="width: 4%">&nbsp;</TD><TD STYLE="width: 48%"><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Companhia de Saneamento B&aacute;sico do Estado de S&atilde;o Paulo</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right; text-indent: 1in">CEO&rsquo;s Office</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">R. Costa Carvalho, 300 &ndash; Pinheiros &ndash; CEP 05429-900 &ndash; S&atilde;o Paulo - SP</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Phone: (11) 3388-8000</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">www.sabesp.com.br</P></TD></TR></TABLE></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 11pt/115% Calibri, Helvetica, Sans-Serif; margin: 0 0 0 0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 49.85pt"></TD><TD STYLE="width: 28.35pt"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">c)</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">the Company&#8217;s annual insurance
plan;</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 49.85pt"></TD><TD STYLE="width: 28.35pt"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">d)</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">residually, within the statutory
limits, everything related to the company&#8217;s activities which is not of private competence of the CEO, of the Board of Directors
or of the Shareholders&#8217; General Meeting; and</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 49.85pt"></TD><TD STYLE="width: 28.35pt"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">e)</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">the Code of Conduct and Integrity
of the Company;</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">III.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">Authorize, subject to the limits
and guidelines established by law, by these Bylaws and by the Board of Directors:</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 0.5in; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 49.85pt"></TD><TD STYLE="width: 28.35pt"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">a)</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">acts of resignation or judicial
or extrajudicial transaction, to end litigations or holdovers, establishing limits of amounts for the delegation of the practice of these
acts by the CEO or any other Officer; and</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 78.2pt; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 49.85pt"></TD><TD STYLE="width: 28.35pt"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">b)</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">the execution of any legal businesses
when the amount involved exceeds ten million reais (R$10,000,000.00), without adverse effects to the competence attributed by the Bylaws
to the Board of Directors, including the acquisition, sale or encumbrance of assets, the obtainment of loans and financings, the assumption
of obligations in general and also the association with other legal entities.</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B>ARTICLE 20 </B>&#8211; The Internal Regulation
of the executive board may show in detail the individual attributions of each officer, as well as to subject the practice of certain acts
comprised in the specific competence areas to the previous authorization of the joint executive board.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.5pt; text-align: justify"><B>Paragraph 1. </B>The area of audit
and the area of compliance and corporate risk management will be administratively connected to the CEO.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.5pt; text-align: justify"><B>Paragraph 2.</B> The CEO is responsible
for:</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 38.95pt"></TD><TD STYLE="width: 18pt"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">I.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">representing the Company, as
plaintiff or defendant, in or out of court, and may initial summons and notifications, pursuant to Article 19 of these Bylaws;</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 56.95pt; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/115% Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 38.95pt"></TD><TD STYLE="width: 18pt"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">II.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">institutionally representing
the Company in its relations with public authorities, private entities and third parties in general;</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/115% Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 38.95pt"></TD><TD STYLE="width: 18pt"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">III.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">convening and chairing the meetings
of the executive board;</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 38.95pt"></TD><TD STYLE="width: 18pt"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">IV.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">coordinating the activities
of the executive board;</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/115% Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 38.95pt"></TD><TD STYLE="width: 18pt"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">V.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">issuing acts and resolutions
that are related to or resulting from the executive board&#8217;s resolutions;</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/115% Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 38.95pt"></TD><TD STYLE="width: 18pt"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">VI.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">coordinating the Company&#8217;s
ordinary management, including the implementation of policies and the execution of resolutions taken by the Shareholders&#8217; General
Meeting, Board of Directors and joint executive board;</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 38.95pt"></TD><TD STYLE="width: 18pt"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">VII.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">coordinating the activities
of the other Officers;</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/115% Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 38.95pt"></TD><TD STYLE="width: 18pt"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">VIII.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">promoting the organizational
and functional structuring of the Company;</FONT></TD></TR></TABLE>


<!-- Field: Page; Sequence: 25 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Gray 1pt solid"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 100%">&nbsp;</TD></TR></TABLE></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; font: 11pt Arial, Helvetica, Sans-Serif; width: 100%"><TR STYLE="vertical-align: top; text-align: left"><TD STYLE="width: 48%"><IMG SRC="sbs202407016k_001.jpg" ALT="">&nbsp;</TD><TD STYLE="width: 4%">&nbsp;</TD><TD STYLE="width: 48%"><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Companhia de Saneamento B&aacute;sico do Estado de S&atilde;o Paulo</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right; text-indent: 1in">CEO&rsquo;s Office</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">R. Costa Carvalho, 300 &ndash; Pinheiros &ndash; CEP 05429-900 &ndash; S&atilde;o Paulo - SP</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Phone: (11) 3388-8000</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">www.sabesp.com.br</P></TD></TR></TABLE></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 11pt/115% Calibri, Helvetica, Sans-Serif; margin: 0 0 0 0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/115% Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 38.95pt"></TD><TD STYLE="width: 18pt"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">IX.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">issuing the normative instructions
that govern the activities of the Company&#8217;s different areas;</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 38.95pt"></TD><TD STYLE="width: 18pt"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">X.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">coordinating, evaluating and
controlling functions relating to: </FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 56.95pt; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 52.9pt"></TD><TD STYLE="width: 18pt"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">a)</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">the CEO&#8217;s office; </FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 52.9pt"></TD><TD STYLE="width: 18pt"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">b)</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">the joint business plan, management
and organization; </FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 52.9pt"></TD><TD STYLE="width: 18pt"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">c)</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">communication; </FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 52.9pt"></TD><TD STYLE="width: 18pt"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">d)</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">ombudsman; and</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 52.9pt"></TD><TD STYLE="width: 18pt"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">e)</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">quality.</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 10pt 0.5in">&nbsp;</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B><U>Representation of the Company</U></B></P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B>ARTICLE 21 </B>- The Company undertakes
obligations before third parties:</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">I.</FONT></TD><TD><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">with the signature of two Executive Officers, one necessarily
being the CEO or the Officer in charge for the financial and investor relations area;<BR>
<BR>
</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">II.</FONT></TD><TD><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">with the signature of one Officer and one proxy, according
to the powers in the respective power-of-attorney;</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">III.</FONT></TD><TD><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">with the signature of two proxies, according to the powers
in the respective power-of-attorneys;</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 0.5in"><BR>
<BR>
</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">IV.</FONT></TD><TD><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">with the signature of one proxy, according to the powers
in the respective power-of-attorneys, in this case exclusively to carry out specific acts.</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.5pt; text-align: justify"><B>Sole paragraph </B>&#8211; The powers
of attorney may be granted through a public or private instrument, including by electronic means, with a determined term, and will specify
the powers granted; only the powers of attorney for the forum in general shall have an undetermined term.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: center"><B>CHAPTER VII</B></P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: center"><B>FISCAL COMMITTEE</B></P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B>ARTICLE 22 </B>&#8211; The Company shall
have a permanent fiscal committee, with the competences and duties provided for by the law.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B>ARTICLE 23 </B>&#8211; The fiscal committee
shall be composed of at least three (3) and at most five (5) sitting members, and the same number of deputies, annually elected by the
Shareholders&#8217; General Meeting and with two (2) consecutive reelections allowed.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.5pt; text-align: justify"><B>Sole Paragraph </B>&#8211; In the
event of vacancy or impediment of the sitting member, the deputy will assume.</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B>ARTICLE 24 </B>&#8211; The fiscal committee
will meet, on an ordinary basis, once a month and, on an extraordinary basis, whenever called by any of its member or by the executive
board, drawing up the minutes in the Company&#8217;s records.</P>


<!-- Field: Page; Sequence: 26 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Gray 1pt solid"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 100%">&nbsp;</TD></TR></TABLE></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; font: 11pt Arial, Helvetica, Sans-Serif; width: 100%"><TR STYLE="vertical-align: top; text-align: left"><TD STYLE="width: 48%"><IMG SRC="sbs202407016k_001.jpg" ALT="">&nbsp;</TD><TD STYLE="width: 4%">&nbsp;</TD><TD STYLE="width: 48%"><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Companhia de Saneamento B&aacute;sico do Estado de S&atilde;o Paulo</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right; text-indent: 1in">CEO&rsquo;s Office</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">R. Costa Carvalho, 300 &ndash; Pinheiros &ndash; CEP 05429-900 &ndash; S&atilde;o Paulo - SP</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Phone: (11) 3388-8000</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">www.sabesp.com.br</P></TD></TR></TABLE></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B><U>Representative of the Minority Shareholders</U></B></P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B>ARTICLE 25</B> &#8211; The participation
of a representative of the minority shareholders in the Company&#8217;s Fiscal Council, and the respective deputy, is ensured, pursuant
to Article 240 of Federal Law 6,404/1976.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: center"><B>CHAPTER VIII</B></P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: center"><B>AUDIT COMMITTEE</B></P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B>ARTICLE 26 </B>- The Company shall have
an audit committee, an advisory body bound to the Board of Directors, composed of three (3) members of the Board of Directors, who shall
cumulatively comply with the requirements of independence, technical expertise, and availability of time.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.3pt; text-align: justify"><B>Paragraph 1 </B>&#8211; All members
of the audit committee shall comply with the Independence requirements provided for in the applicable legislation, without prejudice to
any allowed exoneration.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.3pt; text-align: justify"><B>Paragraph 2</B> &#8211; The minimum
conditions established by law, in particular <U>&sect;</U>1, of Article 25, of Federal Law 13,303/2016, must be observed to become a member
of the audit committee.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.3pt; text-align: justify"><B>Paragraph 3 </B>- The members of
the audit committee shall have sufficient technical knowledge in accounting and financial matters and at least one (1) member must have
a proven experience with the internationally-accepted accounting standards, analysis, preparation and evaluation of financial statements
and knowledge of internal controls and policies for disclosing information to the market.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.3pt; text-align: justify"><B>Paragraph 4 </B>&#8211; The Audit
Committee shall have a coordinator, whose activities will be defined in the internal chart.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.3pt; text-align: justify"><B>Paragraph 5 </B>- The minimum availability
required from each member of the audit committee shall correspond to thirty (30) hours per month.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B>ARTICLE 27 </B>- The audit committee&#8217;s
members may be simultaneously designated with their appointment to the board of directors, or by later resolution of the board of directors
itself.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.3pt; text-align: justify"><B>Paragraph 1 </B>&#8211; The audit
committee&#8217;s members shall exercise their function for the same period as the respective term of office of the Board of Director&#8217;s
member, or until otherwise resolved by the Shareholders&#8217; General Meeting or the board of directors itself.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.3pt; text-align: justify"><B>Paragraph 2</B> &#8211; Having exercised
a term of office for any period, the members of the audit committee may only rejoin such body, of the same Company, after at least three
(3) years of the end of the term of office.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B>ARTICLE 28 </B>- In addition to the provisions
of the law, the audit committee is responsible for:</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">I.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">recommending the choice of the
person responsible for the internal audit appointed by the joint executive board, propose their approval and dismissal to the board of
directors and supervise the performance of the respective activities;</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 0.5in; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">II.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">approving the Company's Code
of Conduct and Integrity and periodically evaluating the compliance with its business practices, including the commitment of the Management
to disseminate the integrity culture and the valorization of ethical behavior;</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 0.5in">&nbsp;</P>


<!-- Field: Page; Sequence: 27 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Gray 1pt solid"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 100%">&nbsp;</TD></TR></TABLE></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; font: 11pt Arial, Helvetica, Sans-Serif; width: 100%"><TR STYLE="vertical-align: top; text-align: left"><TD STYLE="width: 48%"><IMG SRC="sbs202407016k_001.jpg" ALT="">&nbsp;</TD><TD STYLE="width: 4%">&nbsp;</TD><TD STYLE="width: 48%"><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Companhia de Saneamento B&aacute;sico do Estado de S&atilde;o Paulo</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right; text-indent: 1in">CEO&rsquo;s Office</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">R. Costa Carvalho, 300 &ndash; Pinheiros &ndash; CEP 05429-900 &ndash; S&atilde;o Paulo - SP</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Phone: (11) 3388-8000</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">www.sabesp.com.br</P></TD></TR></TABLE></DIV>
    <!-- Field: /Page -->

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">III.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">monitoring the evaluating procedures
of a violation of the Code of Conduct and Integrity, as well as the events registered in the Whistleblower Channel;</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">IV.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">receiving and handling denunciations
and complaints from third parties on issues related to accounting, internal accounting controls and audit;</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">V.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">evaluating the guidelines of
the hiring process of an independent audit company, as well as other conditions for service provision, recommending the hiring to the
board of directors;</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">VI.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">commenting on the hiring and
dismissal of the independent auditors;</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">VII.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">expressing prior opinion on
the hiring of other services from the independent audit company, or companies related thereto, that are not comprised in audit typical
activities;</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">VIII.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">expressing its opinion, at any
time, about the performance of the accounting and internal audit departments, proposing to the executive board the measures that it deems
appropriate;</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">IX.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">dealing directly with the internal
audit department and the independent auditors, following up on the respective work, together with the Chief Financial Office and Investor
Relations Office;</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">X.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">analyzing the internal audit&#8217;s
and the independent auditors&#8217; reports before they are submitted to the board of directors;</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">XI.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">ensuring that the material resources
made available to the internal audit are adequate;</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">XII.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">monitoring, evaluating, and
analyzing the preparation of the quarterly, interim and annual financial statements, seeking to ensure their integrity and quality, informing
the board of directors when necessary; </FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">XIII.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">constantly evaluating the accounting
practices, the internal controls and processes adopted by the Company, seeking to identify critical issues, financial risks and potential
contingencies, and proposing such improvements as they deem necessary;</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">XIV.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">requesting the hiring of specialized
services to support the audit committee&#8217;s activities, whose remuneration shall be supported by the Company, within its annual approved
budget;</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">XV.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">evaluating the reasonableness
of the parameters on which the actuarial calculations are based, as well as the actuarial result of the supplementary pension plans maintained
by Sabesp Social Security Foundation&#8211; Sabesprev (Funda&ccedil;&atilde;o Sabesp de Seguridade Social &#8211; Sabesprev);</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">XVI.</FONT></TD><TD STYLE="text-align: justify; padding-right: 7.55pt"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">Follow
the activities of the internal audit, compliance and of the Company&#8217;s internal controls; </FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">XVII.</FONT></TD><TD STYLE="text-align: justify; padding-right: 7.55pt"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">Assess
and monitor the Company&#8217;s risk exposure;</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 7.55pt 12pt 0.5in; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 21.5pt"></TD><TD STYLE="width: 14.5pt"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">XVIII.</FONT></TD><TD STYLE="text-align: justify; padding-right: 7.55pt"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">Evaluate,
monitor and recommend to the Management the correction or improvement of the Company&#8217;s internal policies, including transactions
with related parties; and</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">XIX.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">Have means to receive and deal
with information about the unfulfilment of legal and normative provisions applicable to the Company, besides regulations and internal
codes, including with provision of specific procedures for the protection of the provider and the confidentiality of the information.</FONT></TD></TR></TABLE>


<!-- Field: Page; Sequence: 28 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Gray 1pt solid"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 100%">&nbsp;</TD></TR></TABLE></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; font: 11pt Arial, Helvetica, Sans-Serif; width: 100%"><TR STYLE="vertical-align: top; text-align: left"><TD STYLE="width: 48%"><IMG SRC="sbs202407016k_001.jpg" ALT="">&nbsp;</TD><TD STYLE="width: 4%">&nbsp;</TD><TD STYLE="width: 48%"><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Companhia de Saneamento B&aacute;sico do Estado de S&atilde;o Paulo</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right; text-indent: 1in">CEO&rsquo;s Office</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">R. Costa Carvalho, 300 &ndash; Pinheiros &ndash; CEP 05429-900 &ndash; S&atilde;o Paulo - SP</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Phone: (11) 3388-8000</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">www.sabesp.com.br</P></TD></TR></TABLE></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.3pt; text-align: justify"><B>Paragraph 1 </B>&#8211; Resolutions
of the audit committee shall made by the majority of its members, without prejudice to the right of its members to individually request
information and examine Company&#8217;s books, documents and papers.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.3pt; text-align: justify"><B>Paragraph 2 </B>&#8211; Reports made
by the internal audit department shall always be submitted to the executive board and the audit committee&#8217;s members.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B>ARTICLE 29 </B>&#8211; The audit committee
shall draft its Internal Regulations, and submit them to board of directors&#8217; approval.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.3pt; text-align: justify"><B>Sole Paragraph </B>&#8211; The Internal
Regulations may expand the powers of the audit committee, and shall also provide for the duties of the coordinator, the holding of periodic
meetings, the form of registration of its opinions and resolutions, in addition to other issues deemed appropriate to the good development
the work.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B>ARTICLE 30 - </B>The audit committee shall
have operating autonomy and its own annual budget approved by the board of directors, as set forth by Law and by the <I>Novo Mercado </I>Rules<I>.</I></P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: center"><B><U>CHAPTER IX</U></B></P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: center"><B>ELIGIBILITY COMMITTEE</B></P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B>ARTICLE 31 </B>&#8211; The Company shall
have an Eligibility Committee, responsible for supervising the process of appointment and evaluation of Officers and members of the fiscal
committee, in compliance with the provisions of Article 10 of Federal Law 13,303/2016.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.3pt; text-align: justify"><B>Paragraph 1</B> &#8211; The Committee
shall:</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 31.85pt"></TD><TD STYLE="width: 18pt"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">I.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">issue a conclusive statement,
to assist the shareholders in the appointment of Officers and members of the fiscal committee, regarding the compliance with the requirements
and the absence of prohibitions for the respective elections;</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 49.85pt; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 31.85pt"></TD><TD STYLE="width: 18pt"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">II.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">verify the compliance of the
evaluation process of the members of the Management and of the fiscal committee;</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 31.85pt"></TD><TD STYLE="width: 18pt"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">III.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">resolve, by majority vote, recorded
in the minutes, which shall be drawn up as a summary of the facts, including dissents and protests, and only include the transcript of
the resolutions taken;</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 31.85pt"></TD><TD STYLE="width: 18pt"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">IV.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">express an opinion, within seven
(7) days from the date of receipt of the registration forms and supporting documentation of the nominees, submitted by CODEC, otherwise
the omission will be notified to the board of directors and competent government bodies; and</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 31.85pt"></TD><TD STYLE="width: 18pt"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">V.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">provide methodological and procedural
support so that the board of directors may evaluate the performance of Officers and other members of statutory committees. </FONT></TD></TR></TABLE>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.3pt; text-align: justify"><B>Paragraph 2</B> &#8211; In case of
urgency, the Committee shall optionally meet by virtual means, issuing its resolution to enable the necessary procedures in due time.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.3pt; text-align: justify"><B>Paragraph 3</B> &#8211; After the
committee expresses an opinion, a copy shall be submitted by the company to CODEC, for the due measures.</P>


<!-- Field: Page; Sequence: 29 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Gray 1pt solid"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 100%">&nbsp;</TD></TR></TABLE></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; font: 11pt Arial, Helvetica, Sans-Serif; width: 100%"><TR STYLE="vertical-align: top; text-align: left"><TD STYLE="width: 48%"><IMG SRC="sbs202407016k_001.jpg" ALT="">&nbsp;</TD><TD STYLE="width: 4%">&nbsp;</TD><TD STYLE="width: 48%"><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Companhia de Saneamento B&aacute;sico do Estado de S&atilde;o Paulo</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right; text-indent: 1in">CEO&rsquo;s Office</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">R. Costa Carvalho, 300 &ndash; Pinheiros &ndash; CEP 05429-900 &ndash; S&atilde;o Paulo - SP</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Phone: (11) 3388-8000</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">www.sabesp.com.br</P></TD></TR></TABLE></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.3pt; text-align: justify"><B>Paragraph 4</B> &#8211; The originals
of the registration forms and supporting documents examined must be kept on file by the Company.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B>ARTICLE 32</B> &#8211; The Committee shall
be composed of up to 3 (three) members, elected at a General Meeting, with no fixed term of office.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.3pt; text-align: justify"><B>Sole Paragraph</B> &#8211; The members
of the Committee must have at least three (3) years of professional experience in Public Management, or three (3) years in the private
sector, in the Company's area of activity or in a related area.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: center"><B><U>CHAPTER X</U></B></P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: center"><B>COMPLIANCE AND RISK MANAGEMENT AREA</B></P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 12pt 0; text-align: justify"><B>ARTICLE 33</B> &#8211; The Company shall have
a Compliance and Risk Management Area connected to the CEO and headed by the statutory officer appointed by the board of directors, and
this Area may count on the operational support from the internal audit and keep direct communication with the fiscal committee, with the
statutory audit committee, and the board of directors, when there is suspicion of involvement with wrongdoing by the executive board members.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B>ARTICLE 34 </B>&#8211; In addition to complying
with the applicable provisions of Federal Law 13,303/2016, the area shall be responsible for the following:</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">I.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">to establish policies to encourage
the compliance with laws, rules and regulations, as well as to prevent, detect and treat risks of irregular, illicit and unethical conducts
by the Company&#8217;s members, and to do so, adopt efficient structures and practices of internal controls and management of strategic,
equity, operational, financial, socio-environmental and reputational risks, among others;</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 0.5in; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">II.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">to promote the importance of
compliance, risk management and internal control;</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">III.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">to identify and classify, together
with the several areas of the company, the main risks to which the Company is subject, coordinating these activities;</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">IV.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">to prepare, together with the
other areas of the company, and to monitor the action plans to mitigate the identified risks;</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">V.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">to adopt, together with the
several areas of the company, procedures of internal control to prevent or detect the inherent or potential risks to timing, reliability
and accuracy of the Company&#8217;s information;</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">VI.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">to prepare the integrity program,
submitting to the approval of the joint executive board, audit committee and board of directors, observing the guidelines established
in State Decree 62,349, of December 26, 2016; </FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">VII.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">to prepare periodic reports
on its activities, submitting them to the joint executive board, the board of directors, the fiscal committee and the audit committee.</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: center"><B>CHAPTER XI</B></P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: center"><B>INTERNAL AUDIT</B></P>


<!-- Field: Page; Sequence: 30 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Gray 1pt solid"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 100%">&nbsp;</TD></TR></TABLE></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; font: 11pt Arial, Helvetica, Sans-Serif; width: 100%"><TR STYLE="vertical-align: top; text-align: left"><TD STYLE="width: 48%"><IMG SRC="sbs202407016k_001.jpg" ALT="">&nbsp;</TD><TD STYLE="width: 4%">&nbsp;</TD><TD STYLE="width: 48%"><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Companhia de Saneamento B&aacute;sico do Estado de S&atilde;o Paulo</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right; text-indent: 1in">CEO&rsquo;s Office</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">R. Costa Carvalho, 300 &ndash; Pinheiros &ndash; CEP 05429-900 &ndash; S&atilde;o Paulo - SP</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Phone: (11) 3388-8000</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">www.sabesp.com.br</P></TD></TR></TABLE></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B>ARTICLE 35</B> &#8211; The Company shall
have an Internal Audit, connected to the board of directors through the audit committee and functionally to the CEO, governed by the applicable
laws and regulations.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.3pt; text-align: justify"><B>Sole Paragraph</B> &#8211; The area
will be responsible for evaluating:</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 38.95pt"></TD><TD STYLE="width: 18pt"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">I.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">the adequacy of internal controls;</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 56.95pt; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 38.95pt"></TD><TD STYLE="width: 18pt"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">II.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">the effectiveness of the risk
management and of the governance processes;</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 38.95pt"></TD><TD STYLE="width: 18pt"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">III.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">the reliability of the process
of collecting, measuring, classifying, accumulating, recording and disclosing events and transactions, to prepare financial statements;
and</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/115% Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 38.95pt"></TD><TD STYLE="width: 18pt"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">IV.</FONT></TD><TD><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">the proper application of the principle of segregation of
duties, to avoid the occurrence of conflicts of interest and fraud. </FONT></TD></TR></TABLE>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B>ARTICLE 36</B> &#8211; The guidelines of
the internal audit&#8217;s process and duties shall be defined in the Institutional Policy of Internal Audit, analyzed by the joint executive
board and approved by the audit committee and the board of directors.</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B>ARTICLE 37</B> &#8211; The audit committee
shall be responsible for recommending the choice, by the board of directors, of the person responsible for the Internal Audit appointed
by the joint executive board, propose their dismissal and supervise the execution of the respective activities.</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B>ARTICLE 38</B> &#8211; The audit committee
may provide operating support to the Compliance and Risk Management Area in situations where the members of the executive board are suspected
of being involved in irregularities or they do not meet the obligation to adopt the necessary measures in relation to the situation reported
to them.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: center"><B>CHAPTER XII</B></P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: center"><B>COMMON RULES TO STATUTORY BODIES</B></P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B><U>Investiture, Impediments and Prohibitions</U></B></P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B>ARTICLE 39</B> &#8211; For the purposes
of this chapter, &#8220;statutory bodies&#8221; include the Board of Directors, the Executive Board, the Fiscal Council, the Audit Committee,
and the Eligibility Committee.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B>ARTICLE 40</B> &#8211; The members of statutory
bodies must prove their compliance with the legal requirements, submitting their curriculum and the relevant documents, as set forth in
the current regulations.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.3pt; text-align: justify"><B>Sole Paragraph</B> &#8211; The requirements
of the policy of appointment of the controlling shareholder shall be observed by the members appointed by it.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B>ARTICLE 41 </B>&#8211; The members of the
board of directors, of the executive board and of the fiscal committee will be invested in their positions upon the execution of the instrument
of investiture drawn up in the respective book of minutes, in compliance with the applicable legal requirements.</P>


<!-- Field: Page; Sequence: 31 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Gray 1pt solid"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 100%">&nbsp;</TD></TR></TABLE></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; font: 11pt Arial, Helvetica, Sans-Serif; width: 100%"><TR STYLE="vertical-align: top; text-align: left"><TD STYLE="width: 48%"><IMG SRC="sbs202407016k_001.jpg" ALT="">&nbsp;</TD><TD STYLE="width: 4%">&nbsp;</TD><TD STYLE="width: 48%"><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Companhia de Saneamento B&aacute;sico do Estado de S&atilde;o Paulo</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right; text-indent: 1in">CEO&rsquo;s Office</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">R. Costa Carvalho, 300 &ndash; Pinheiros &ndash; CEP 05429-900 &ndash; S&atilde;o Paulo - SP</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Phone: (11) 3388-8000</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">www.sabesp.com.br</P></TD></TR></TABLE></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.3pt; text-align: justify"><B>Paragraph 1</B> &#8211; The instrument
of investiture of the Members of the Board of Directors, executive officers, sitting and alternate members of the fiscal committee, must
express its subordination to the arbitration clause of the <I>Novo Mercado</I>&#8217;s rules, referred on article 52.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.3pt; text-align: justify"><B>Paragraph 2 </B>&#8211; The instrument
of investiture shall be signed in within thirty (30) days following the election, under penalty of its inefficiency, except for a justification
accepted by the body for which the member has been elected, and shall contain the indication of at least one domicile to receive notifications
and summons of administrative and judicial procedures, related to acts of his management, and the change of the domicile indicated is
allowed only by means of a written communication.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.3pt; text-align: justify"><B>Paragraph 3 </B>&#8211; The investiture
will be subject to the presentation of the declaration of assets and values, as provided for in the state legislation, which shall be
annually updated and at the end of the term of office.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B>ARTICLE 42</B> &#8211; The members of the
statutory bodies may convene employees to attend meetings and provide clarification or information on the matters to be resolved on. The
requests must be addressed to the Company's CEO and/or the respective Officer, and the call notice must include the date, time and matters
of the agenda.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B>ARTICLE 43</B> &#8211; The change in the
composition of statutory bodies will be immediately notified to CODEC.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B>ARTICLE 44 </B>&#8211; Except in the assumption
of resignation or dismissal, the term of office of the members of the statutory bodies is considered automatically postponed, until the
investiture of the respective alternate members.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B><U>Compensation and Licenses</U></B></P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B>ARTICLE 45 </B>&#8211; The compensation
of the members of the statutory bodies shall be established by the Shareholders&#8217; General Meeting and there shall not be accumulation
of earnings or any advantages due to the replacements occurring by virtue of vacancy, temporary absences or impediments, or due to the
accumulation of positions in councils and committees, and the member of the board of directors can choose one of the compensations.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.3pt; text-align: justify"><B>Sole Paragraph</B> &#8211; It is
allowed to the Officer, who on the date of the investiture belongs to the Company&#8217;s staff, to opt for the respective salary.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B>ARTICLE 46 </B>&#8211; The Officers may
request to the board of directors removal by unpaid leave, as long as for a term not longer than three (3) months, which shall be recorded
in the minutes.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: center"><B>CHAPTER XIII</B></P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: center"><B>FISCAL YEAR AND FINANCIAL STATEMENTS PROFITS,
RESERVES AND DIVIDEND DISTRIBUTION</B></P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B>ARTICLE 47 </B>&#8211; The fiscal year shall
match the calendar year, and after the closing of the fiscal year, the executive board shall require the preparation of the financial
statements, pursuant to the law.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B>ARTICLE 48 </B>&#8211; Common shares shall
be entitled to the minimum mandatory dividends of twenty-five percent (25%) of the fiscal year&#8217;s net income, after the deductions
established or authorized by law.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.3pt; text-align: justify"><B>Paragraph 1 </B>&#8211; Dividends
may be paid by the Company as interest on equity.</P>


<!-- Field: Page; Sequence: 32 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Gray 1pt solid"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 100%">&nbsp;</TD></TR></TABLE></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; font: 11pt Arial, Helvetica, Sans-Serif; width: 100%"><TR STYLE="vertical-align: top; text-align: left"><TD STYLE="width: 48%"><IMG SRC="sbs202407016k_001.jpg" ALT="">&nbsp;</TD><TD STYLE="width: 4%">&nbsp;</TD><TD STYLE="width: 48%"><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Companhia de Saneamento B&aacute;sico do Estado de S&atilde;o Paulo</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right; text-indent: 1in">CEO&rsquo;s Office</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">R. Costa Carvalho, 300 &ndash; Pinheiros &ndash; CEP 05429-900 &ndash; S&atilde;o Paulo - SP</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Phone: (11) 3388-8000</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">www.sabesp.com.br</P></TD></TR></TABLE></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.3pt; text-align: justify"><B>Paragraph 2 </B>&#8211; The Company
may draw interim balance sheets, quarterly, for purposes of payment of dividends or payment of interest on equity.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.3pt; text-align: justify"><B>Paragraph 3 </B>&#8211; The approved
dividends shall not accrue interest and those that are not claimed within three (3) years as of the date of the Shareholders&#8217; General
Meeting that approved them, shall lapse in favor of the Company.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.3pt; text-align: justify"><B>Paragraph 4 </B>&#8211; The board
of directors may propose to the Shareholders&#8217; General Meeting that the remaining balance of the income for the year, after the deduction
of the legal reserve and of the minimum mandatory dividend, is destined to the creation of an investment reserve, which will comply with
the following principles:</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 42.3pt"></TD><TD STYLE="width: 14.4pt"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">I.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">its balance, jointly with the
balance of the other profit reserves, except the reserves for contingencies and of unrealized profits, may not exceed the capital stock;
and</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 56.7pt; text-align: justify; text-indent: -0.2in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 42.3pt"></TD><TD STYLE="width: 14.4pt"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">II.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">the reserve has as purpose to
ensure the investment plan and its balance may be used:</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt/115% Verdana, Helvetica, Sans-Serif; margin: 0 0 0 0.5in; text-indent: -0.2in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 56.75pt"></TD><TD STYLE="width: 14.4pt"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">a)</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">in the absorption of losses,
whenever necessary;</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 56.75pt"></TD><TD STYLE="width: 14.4pt"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">b)</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">in the payment of dividends,
at any moment;</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 56.75pt"></TD><TD STYLE="width: 14.4pt"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">c)</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">in the operations of redemption,
reimbursement or purchase of shares, authorized by law; and</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 56.75pt"></TD><TD STYLE="width: 14.4pt"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">d)</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">in the incorporation to the
capital stock.</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: center"><B>CHAPTER XIV</B></P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: center"><B>WINDING UP</B></P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B>ARTICLE 49 </B>&#8211; The company shall
enter into liquidation in the cases provided for by law, and the Shareholders&#8217; General Meeting shall be responsible, as the case
may be, for determining the means of liquidation and appointing the liquidator, fixing his/her remuneration.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: center"><B>CHAPTER XV</B></P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: center"><B>DEFENSE MECHANISM</B></P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B>ARTICLE 50 </B>- The company shall ensure
the members of its statutory bodies, through an <U>external legal professional</U> to be hired, the technical defense in legal and administrative
lawsuits proposed during or after their respective terms of office, for acts related to the performance of their duties.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.3pt; text-align: justify"><B>Paragraph 1 </B>&#8211; The same
protection is extended to the Company&#8217;s employees, representatives and proxies who have acted to the extent of the powers conferred
upon them.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.3pt; text-align: justify"><B>Paragraph 2</B> &#8211; Upon authorization
of the joint executive board, provided that it does not imply a conflict of interest, the legal counsel of the professional staff of the
Company is ensured for the preliminary procedures.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.3pt; text-align: justify"><B>Paragraph 3 </B>&#8211; The Company
may, at its criteria, keep a permanent contract or a pre-qualification with one or more preeminent reputed law firms, or have preapproved
law firms, with the purpose of being ready to undertake, at any time, the technical defense of the agents encompassed by this article.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.3pt; text-align: justify"><B>Paragraph 4 </B>&#8211; If, by any
reason, no preapproved or hired law firm has been hired by the company, the agent may hire a legal counsel he trusts and have the legal
fees or any other expenses incurrent in his technical defense paid to him
in advance or reimbursed by the Company, after presenting evidence that such expenses have been or will be incurred, provided that the
amounts involved have been approved by the board of directors as to their reasonableness.</P>


<!-- Field: Page; Sequence: 33 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Gray 1pt solid"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 100%">&nbsp;</TD></TR></TABLE></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; font: 11pt Arial, Helvetica, Sans-Serif; width: 100%"><TR STYLE="vertical-align: top; text-align: left"><TD STYLE="width: 48%"><IMG SRC="sbs202407016k_001.jpg" ALT="">&nbsp;</TD><TD STYLE="width: 4%">&nbsp;</TD><TD STYLE="width: 48%"><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Companhia de Saneamento B&aacute;sico do Estado de S&atilde;o Paulo</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right; text-indent: 1in">CEO&rsquo;s Office</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">R. Costa Carvalho, 300 &ndash; Pinheiros &ndash; CEP 05429-900 &ndash; S&atilde;o Paulo - SP</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Phone: (11) 3388-8000</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">www.sabesp.com.br</P></TD></TR></TABLE></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 13pt Times New Roman, Times, Serif; margin: 0 0 12pt 21.3pt; text-align: justify"></P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.3pt; text-align: justify"><B>Paragraph 5 </B>&#8211; If the Company
does not approve, in due time, the professional appointed to take over the defense, the interested party may contract it on its own account,
being entitled to reimbursement of the respective legal fees established, within the limits approved by the board of directors as to their
reasonableness.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.3pt; text-align: justify"><B>Paragraph 6 </B>&#8211; The Company
shall ensure the technical defense as well as access in real time to all required documentation for this effect. It shall also bear all
legal costs, charges of any nature, and court deposits.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.3pt; text-align: justify"><B>Paragraph 7 </B>- Agents found guilty
or held liable, with a final and unappealable decision, shall be obliged to reimburse the Company for the amounts effectively disbursed,
except when it is evidenced that they acted in good faith and in pursue of corporate interest.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.3pt; text-align: justify"><B>Paragraph 8 </B>&#8211; The Company
may contract insurance on behalf of the members of its statutory bodies, as well as of its employees, representatives and proxies, for
covering liabilities arising from the performance of their duties.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: center"><B>CHAPTER XVI</B></P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: center"><B>ARBITRATION</B></P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B>ARTICLE 51 </B>&#8211; The Company, its
shareholders, managers and the sitting and alternate members of the fiscal committee undertake to submit to arbitration, before the Market
Arbitration Chamber through its regulation, any controversy that may arise between them, related to or caused by its condition as an issuer,
shareholder, manager and member of the fiscal committee particularly, the ones the application, validity, effectiveness, interpretation,
violation and its effects, of the provisions set forth in the Brazilian Corporation Law, these Bylaws, in the rules issued by the Conselho
Monet&aacute;rio Nacional (National Monetary Council), by the Central Bank of Brazil, and by the Comiss&atilde;o de Valores Mobili&aacute;rios
(&#8220;CVM&#8221;), as well as in the other rules applicable to the operation of the capital market in general, besides those provided
for in the <I>Novo Mercado</I> Rules, in other of B3 rules, and in the <I>Novo Mercado</I> Listing Agreement.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: center"><B>CHAPTER XVII</B></P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: center"><B>CHANGE OF CONTROL AND CANCELLATION OF THE
PUBLICLY-HELD COMPANY REGISTRATION</B></P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B>ARTICLE 52 </B>&#8211; The direct or indirect
disposition of the control of the Company, either through a single transaction or through a number of successive transactions, shall be
contracted on the condition that the new controlling shareholder undertakes to make a public offer for the acquisition of the shares,
having as object the shares issued by the company held by the other shareholders, subject to the terms and conditions provided for by
the legislation and in the <I>Novo Mercado</I> Rules, so as to ensure them equal treatment as compared to the grantor.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: center"><B>CAP&Iacute;TULO XVIII</B></P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: center"><B>DELISTING FROM THE <I>NOVO MERCADO</I></B></P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B>ARTICLE 53</B> - The Company&#8217;s delisting
from the Novo Mercado shall be resolved in compliance with the Novo Mercado Rules, allowing the dismissal of the public offer for the
acquisition of shares held by other shareholders, observing the procedures provided for in the referred Rules.</P>


<!-- Field: Page; Sequence: 34 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Gray 1pt solid"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 100%">&nbsp;</TD></TR></TABLE></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; font: 11pt Arial, Helvetica, Sans-Serif; width: 100%"><TR STYLE="vertical-align: top; text-align: left"><TD STYLE="width: 48%"><IMG SRC="sbs202407016k_001.jpg" ALT="">&nbsp;</TD><TD STYLE="width: 4%">&nbsp;</TD><TD STYLE="width: 48%"><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Companhia de Saneamento B&aacute;sico do Estado de S&atilde;o Paulo</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right; text-indent: 1in">CEO&rsquo;s Office</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">R. Costa Carvalho, 300 &ndash; Pinheiros &ndash; CEP 05429-900 &ndash; S&atilde;o Paulo - SP</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Phone: (11) 3388-8000</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">www.sabesp.com.br</P></TD></TR></TABLE></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: center"><B>CHAPTER XIX</B></P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: center"><B>MISCELLANEOUS</B></P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B>ARTICLE 54</B> &#8211; The Company shall
have an institutional channel, which may be external to the Company, to receive complaints on corruption, fraud, illegal acts and irregularities
that damage the Company&#8217;s equity and reputation, including violations of the Code of Conduct and Integrity.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.3pt; text-align: justify"><B>Paragraph 1</B> &#8211; The Company&#8217;s
managers shall disclose and encourage the use of the institutional whistleblower channel, that will ensure the anonymity of the complainant
for undetermined period and the confidentiality of the investigation procedure and verification of responsibilities.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.3pt; text-align: justify"><B>Paragraph 2</B> &#8211; Under the
supervision of the Board of Directors, the state company shall establish a mechanism for a previous consultation to solve doubts on the
application of the Code of Conduct and Integrity and define approaches to concrete cases.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B>ARTICLE 55 </B>&#8211; Until April 30 of
each year, the Company will publish its table of jobs and functions, filled and vacant, related to the previous year, in compliance with
the provisions in Paragraph 5, of Article 115, of the Constitution of the State of S&atilde;o Paulo.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B>ARTICLE 56 </B>&#8211; The Company may sponsor
private pension plans, under the defined contribution scheme, to employees, being it incumbent upon the board of directors to resolve
on the conditions set forth in the respective regulations, as well as on the percentage of contribution of the sponsor, regular and extraordinary,
pursuant to the governing laws.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.3pt; text-align: justify"><B>Sole Paragraph </B>&#8211; The Company
may remain as sponsor of the private pension plan under the defined benefit scheme, which is under extinguishment phase, forbidding the
entry of new participants, as well as the increase of respective benefits.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B>ARTICLE 57 </B>&#8211; In view of the provisions
in Article 101 of the S&atilde;o Paulo State Constitution, regulated by State Decree 56,677 of January 19, 2011, the engagement of attorney
liable for heading the Company's legal services shall be subject to the approval of the person appointed by the State Attorney General,
observing objective qualification, expertise and professional experience criteria.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B>ARTICLE 58 </B>&#8211; The Company shall
allow the direct dialogue of its attorneys with the State Attorney General or another State Attorney appointed thereby, aiming at ensuring
a continued and coordinated performance, observing the limits set forth in Article 101 of the State Constitution, in compliance with the
duties and prerogatives inherent to his professional activity.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify; background-color: white"><B>ARTICLE 59 </B>&#8211;
The appointment of persons that meet the ineligibility criteria established by the federal legislation is forbidden.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.3pt; text-align: justify"><B>Paragraph 1 </B>&#8211; The prohibition
in the head of this article is extended to appointments to commissions and designations for positions of trust.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.3pt; text-align: justify"><B>Paragraph 2 </B>&#8211; The Company
will comply with Article 111-A of the Constitution of the State of S&atilde;o Paulo and the rules in State Decrees 57,970, of April 12,
2012, and 58,076, of May 25, 2012, as well as any future amendments.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B>ARTICLE 60 </B>&#8211; The admission of
employees by the Company is subject to the submission of a statement of the assets and amounts that make up their personal wealth, which
must be annually updated, as well as at the time of their termination.</P>


<!-- Field: Page; Sequence: 35 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Gray 1pt solid"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 100%">&nbsp;</TD></TR></TABLE></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; font: 11pt Arial, Helvetica, Sans-Serif; width: 100%"><TR STYLE="vertical-align: top; text-align: left"><TD STYLE="width: 48%"><IMG SRC="sbs202407016k_001.jpg" ALT="">&nbsp;</TD><TD STYLE="width: 4%">&nbsp;</TD><TD STYLE="width: 48%"><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Companhia de Saneamento B&aacute;sico do Estado de S&atilde;o Paulo</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right; text-indent: 1in">CEO&rsquo;s Office</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">R. Costa Carvalho, 300 &ndash; Pinheiros &ndash; CEP 05429-900 &ndash; S&atilde;o Paulo - SP</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Phone: (11) 3388-8000</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">www.sabesp.com.br</P></TD></TR></TABLE></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt 21.3pt; text-align: justify"><B>Sole Paragraph </B>&#8211; The Company
shall observe the rules set forth in Article 13, Federal Law 8,429, of June 2, 1992, and its subsequent amendments, and in State Decree
41,865, of June 16, 1997, and its subsequent amendments, as well as any amendments that may be issued.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 0 12pt; text-align: justify"><B>ARTICLE 61</B>&#8211; The Company will comply
with Binding Precedent 13 of the Federal Supreme Court and State Decree 54,376, of May 26, 2009, as well as any future amendments that
may be issued.</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0; text-align: center"><B>&nbsp;</B></P>


<!-- Field: Page; Sequence: 36 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Gray 1pt solid"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 100%">&nbsp;</TD></TR></TABLE></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; font: 11pt Arial, Helvetica, Sans-Serif; width: 100%"><TR STYLE="vertical-align: top; text-align: left"><TD STYLE="width: 48%"><IMG SRC="sbs202407016k_001.jpg" ALT="">&nbsp;</TD><TD STYLE="width: 4%">&nbsp;</TD><TD STYLE="width: 48%"><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Companhia de Saneamento B&aacute;sico do Estado de S&atilde;o Paulo</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right; text-indent: 1in">CEO&rsquo;s Office</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">R. Costa Carvalho, 300 &ndash; Pinheiros &ndash; CEP 05429-900 &ndash; S&atilde;o Paulo - SP</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Phone: (11) 3388-8000</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">www.sabesp.com.br</P></TD></TR></TABLE></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0; text-align: left"><B>&nbsp;</B></P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0; text-align: center"><B>ATTACHMENT II</B></P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0; text-align: center">Attending shareholders list</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">Pursuant to paragraphs 1 and 2 of article 47 of the
Brazilian Securities and Exchange Commission (CVM) Resolution 81/22, of March 29, 2022, as amended and in force, the shareholders attending
the Meeting are considered signatories to the minutes.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">Considering that some shareholders attended, through
the Remote Voting Form, exclusively the Annual Shareholders&#8217; Meeting or the Extraordinary Shareholders&#8217; Meeting, the attendance
list at the end will show a separate list of those present at the Ordinary General Meeting and the Extraordinary General Meeting.</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify"><B><U>Shareholders attending the Annual and Extraordinary
Shareholders' Meeting through the electronic participation system:</U></B></P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">Luiz Sergio Pegoraro</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">Represented by DANIEL ALVES FERREIRA:</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">IT NOW IBOVESPA FUNDO DE &Iacute;NDICE, ITA&Uacute;
ARTAX MULTIMERCADO FUNDO DE INVESTIMENTO, ITA&Uacute; BALANCEADO ATIVO FMP - FGTS CARTEIRA LIVRE, ITAU IBOVESPA ATIVO MASTER FIA, ITA&Uacute;
MOMENTO II A&Ccedil;&Otilde;ES FUNDO DE INVESTIMENTO, ITA&Uacute; MAPPA INSTITUCIONAL MULTIMERCADO FUNDO DE INVESTIMENTO, ITA&Uacute;
MASTER GLOBAL DIN&Acirc;MICO ULTRA MULTIMERCADO FUNDO DE INVESTIMENTO, ITA&Uacute; OPTIMUS EXTREME MULTIMERCADO FUNDO DE INVESTIMENTO,
ITA&Uacute; HUNTER TOTAL RETURN MULTIMERCADO FI, ITA&Uacute; OPTIMUS LONG BIAS MULTIMERCADO FUNDO DE INVESTIMENTO, LONG BIAS FUNDO DE
INVESTIMENTO EM A&Ccedil;&Otilde;ES, ITA&Uacute; INDEX A&Ccedil;&Otilde;ES IBOVESPA FI, STRUCTURA, TYLER FINANCE, LLC, ITA&Uacute; INFLATION
EQUITY OPPORTUNITIES MULTIMERCADO FUNDO DE INVESTIMENTO, ITA&Uacute; LONG AND SHORT PLUS MULTIMERCADO FI, ITA&Uacute; ARTAX LONG BIAS
MULTIMERCADO FUNDO DE INVESTIMENTO, ITA&Uacute; INFLATION EQUITY OPPORT A&Ccedil;&Otilde;ES, ITA&Uacute; SIRIUS FUNDO DE INVESTIMENTO
EM A&Ccedil;&Otilde;ES, BARTHE HOLDINGS, LLC, ITA&Uacute; INFLA&Ccedil;&Atilde;O MULTIESTRAT&Eacute;GIA MULTIMERCADO FUNDO DE INVESTIMENTO,
ITA&Uacute; SP B3 LOW VOLATILITY FUNDO DE INVESTIMENTO EM A&Ccedil;&Otilde;ES, IT NOW IGCT FUNDO DE INDICE, STICHTING BEDRIJFSTAKPENSIOENFONDS
V H S, A,ENGLASZETBEDRIJF, AMUNDI FUNDS, CANDRIAM EQUITIES L, ITAU MOMENTO ESG ACOES FUNDO DE INVESTIMENTO, ITAU MOMENTO IQ ACOES FUNDO
DE INVESTIMENTO, ITA&Uacute; OPTIMUS TITAN MULTIMERCADO FUNDO DE INVESTIMENTO, ITA&Uacute; PREVID&Ecirc;NCIA IBRX FIA, IT NOW PIBB IBRX-50
FUNDO DE &Iacute;NDICE, STICHTING PENSIOENFONDS VOOR DE ARCHITECTENBUREAUS, FIDELITY FUNDS LATIN AMERICA FUND, HEPTAGON FUND ICAV - DRIEHAUS
EMERGING MARKETS SUSTAINABLE EQUITY FUND, ITA&Uacute; ASGARD INSTITUCIONAL A&Ccedil;&Otilde;ES FUNDO DE INVESTIMENTO, ITAU CAIXA ACOES
FI, ITA&Uacute; DUNAMIS MASTER FUNDO DE INVESTIMENTO EM A&Ccedil;&Otilde;ES, ITA&Uacute; GOVERNAN&Ccedil;A CORPORATIVA A&Ccedil;&Otilde;ES
FUNDO DE INVESTIMENTO SUSTENT&Aacute;VEL, ITA&Uacute; IBRX ATIVO MASTER FIA, ITA&Uacute; MASTER GLOBAL DIN&Acirc;MICO MULTIMERCADO FUNDO
DE INVESTIMENTO, ITA&Uacute; MASTER MOMENTO A&Ccedil;&Otilde;ES FUNDO DE INVESTIMENTO, ITA&Uacute; A&Ccedil;&Otilde;ES DIVIDENDOS FI,
ITAU FTSE RAFI BRAZIL 50 CAPPED INDEX FIA, ITAU INDEX ACOES IBRX FI, ITA&Uacute; INSTITUCIONAL INFLA&Ccedil;&Atilde;O MULTIESTRAT&Eacute;GIA
MULTIMERCADO FUNDO DE INVESTIMENTO, ITA&Uacute; MASTER HUNTER LONG ONLY FUNDO DE INVESTIMENTO FINANCEIRO EM A&Ccedil;&Otilde;ES - RESPONSABILIDADE
LIMITADA, ITA&Uacute; ASGARD A&Ccedil;&Otilde;ES FUNDO DE INVESTIMENTO, AMUNDI AMBITION NET ZERO CARBONE, ITA&Uacute; ARTAX ULTRA MULTIMERCADO
FUNDO DE INVESTIMENTO, JPMORGAN FUNDS, ITAU PHOENIX ACOES FI, LCL ACTIONS EMERGENTS, NUVEEN ESG EMERGING MARKETS EQUITY ETF, AMUNDI INDEX
SOLUTIONS, FIDELITY FUNDS SICAV, BEST INVESTMENT CORPORATION</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">Represented by Laura Baracat Bedicks Panucci:</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">Estado de S&atilde;o Paulo</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">Represented by Leticia Pedercini Issa:</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">Hydrocenter V&aacute;lvulas Tubos e Conex&otilde;es
Ltda</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">Represented by Juliana Mariano Rodrigues:</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">THE BANK OF NEW YORK</P>


<!-- Field: Page; Sequence: 37 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Gray 1pt solid"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 100%">&nbsp;</TD></TR></TABLE></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; font: 11pt Arial, Helvetica, Sans-Serif; width: 100%"><TR STYLE="vertical-align: top; text-align: left"><TD STYLE="width: 48%"><IMG SRC="sbs202407016k_001.jpg" ALT="">&nbsp;</TD><TD STYLE="width: 4%">&nbsp;</TD><TD STYLE="width: 48%"><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Companhia de Saneamento B&aacute;sico do Estado de S&atilde;o Paulo</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right; text-indent: 1in">CEO&rsquo;s Office</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">R. Costa Carvalho, 300 &ndash; Pinheiros &ndash; CEP 05429-900 &ndash; S&atilde;o Paulo - SP</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Phone: (11) 3388-8000</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">www.sabesp.com.br</P></TD></TR></TABLE></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 13pt Times New Roman, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>



<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify"><B><U>Shareholders attending the Annual Shareholders'
Meeting through the Remote Voting Form:</U></B>&nbsp;</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">EQUITAS PREV XP MASTER FIA, GOLDMAN SACHS ETF TRUST
- GOLDMAN SACHS EMERGING M, HPE COMMON CONTRACTUAL FUND, HANDELSBANKEN LATINAMERIKA TEMA, INFRAD MASTER FUNDO DE INVESTIMENTO EM ACOES,
ISHARES MSCI EMERGING MARKETS ETF, INVESCO INVESTMENT MANAGEMENT LTD, ACTING AS MANAG, INVESCO MSCI EMERGING MARKETS ESG CLIMATE PARIS
AL, INVESCO MSCI EMERGING MARKETS ESG UNIVERSAL SCREEN, INVESTERINGSFORENINGEN D. I. I. G. AC R. - A. KL, ITAU FUNDS - LATIN AMERICA EQUITY
FUND, CLARITAS BRASILPREV FIFE FUNDO DE INVESTIMENTO MULTIMERCADO, ISHARES CORE MSCI EMERGING MARKETS ETF, AVIVA LIFE PENSIONS UK LIMITED,
AXA INVESTMENT MANAGERS SCHWEIZ AG ON BEHALF OF AX, ISHARES EMERGING MARKETS FUNDAMENTAL INDEX ETF, ISHARES ESG ADVANCED MSCI EM ETF,
ISHARES III PUBLIC LIMITED COMPANY, ISHARES MSCI BRIC ETF, ISHARES MSCI EMERGING MARKETS EX CHINA ETF, ISHARES S&amp;P GLOBAL WATER INDEX
FUND, IPROFILE INTERNATIONAL EQUITY PRIVATE POOL, ISHARES EDGE MSCI MULTIFACTOR EMERGING MARKETS ETF, ISHARES MSCI ACWI ETF, IVESCO FTSE
RAFI EMERGING MARKETS ETF, JOHN HANCOCK FUNDS II MULTI-ASSET ABSOLUTE RETURN FUND, JOHN HANCOCK FUNDS II EMERGING MARKETS FUND, KAPITALFORENINGEN
INVESTIN PRO, VELLIV EMERGING MA, KAPITALFORENINGEN SAMPENSION INVEST, GEM ENHANCED, KRANESHARES MSCI EMERGING MARKETS EX CHINA INDEX
E, JPMORGAN BETABUILDERS EMERGING MARKETS EQUITY ETF, KAPITALFORENINGEN EMD INVEST, EMERGING MARKETS IND, LEGAL &amp; GENERAL ICAV, LEIA
GROUP TRUST, LGIASUPER TRUSTEE, LEGAL AND GENERAL ASSURANCE SOCIETY LIMITED, LIONTRUST INVESTMENT FUNDS I - LIONTRUST LATIN AMERICA FUND,
LOS ANGELES COUNTY EMPLOYEES RET ASSOCIATION, LGCY FI EM ACOES, MALIKO INVESTMENTS LLC, MACQUARIE MULTI-FACTOR FUND, MGTS AFH DA GLOBAL
EMERGING MARKETS EQUITY FUND, JPMORGAN DIVERSIFIED RETURN EMERGING MARKETS EQUITY ETF, MERCER EMERGING MARKETS EQUITY FUND, CONSTELLATION
MASTER FUNDO DE INVESTIMENTO DE A&Ccedil;&Otilde;ES, MERCER UCITS COMMON CONTRACTUAL FUND, MGI FUNDS PLC, MINISTRY OF ECONOMY AND FINANCE,
NAT WEST BK PLC AS TR OF ST JAMES PL ST MANAGED UNIT TRUST, NATIONAL COUNCIL FOR SOCIAL SECURITY FUND, MEDIOLANUM BEST BRANDS - MEDIOLANUM
GLOBAL IMPACT, MERCER PRIVATE WEALTH INTERNATIONAL FOCUSED EQUITY POOL, NATIONAL EMPLOYMENT SAVINGS TRUST, NAVI INSTITUCIONAL MASTER FIA,
NEW IRELAND ASSURANCE COMPANY PUBLIC LIMITED COMPANY, GENOA CAPITAL CRUISE BRASILPREV FIFE FUNDO DE INVESTIMENTO MULTIMERCADO, NEW ZEALAND
SUPERANNUATION FUND, MERCER EMERGING MARKETS SHARES FUND, MICROBANK SI IMPACTO RENTA VARIABLE, FI, NEW SOUTH WALLES TR CORP AS TR FOR
THE TC EMER MKT SHAR FUND, NGS SUPER, NORDEA 1 SICAV NORDEA 1 STABLE EMERGING MARKETS EQUITY FUND, NORDEA 2, SICAV - EMERGING MKTS SUSTAINABLE
ENHANCED EQ FUND, NORTHERN TRUST COLLECTIVE EMERGING MARKETS INDEX FUND-LEND, NORTHERN TRUST UCITS FGR FUND, NTCC COLLECTIVE FUNDS FOR
EMPLOYEE BENEFIT TRUSTS, NORDEA 1 SICAV - NORDEA 1 STABLE RETURN FUND, NORDEA DEDICATED INV FD, SICAV-FIS-MA LIQ ALTERNATIVE II FD, ABSOLUTE
ENDURANCE IVP FIA, NORTHERN TRUST INVESTIMENT FUNDS PLC, NAVI A PREVID&Ecirc;NCIA FI EM A&Ccedil;&Otilde;ES MASTER, NAVI CRUISE MASTER
FIA, NEBRASKA PUBLIC EMPLOYEES RETIREMENT SYSTEMS, PARAMETRIC EMERGING MARKETS FUND, PACIFIC SELECT FUND - PD EMERGING MARKETS PORTFOLIO,
NEW YORK STATE TEACHERS RETIREMENT SYSTEM, PARAMETRIC TMEMC FUND, LP, NORTHERN EMERGING MARKETS EQUITY INDEX FUND, NORTHERN TRUST COLLECTIVE
EMERGING MARKETS EX CHIN, NTGI QM COMMON DAILY ALL COUNT WORLD EXUS EQU INDEX FD LEND, NORDEA 1- ALPHA 15 MA FUND, ABSOLUTE PACE MASTER
FIM, NORGES BANK, NTGI-QM COMMON DAC WORLD EX-US INVESTABLE MIF - LENDING, PARTNERS GROUP LISTED INVESTMENTS SICAV - LISTED INFRASTRUCT,
PACIFIC SELECT FUND, PICTET CH INSTITUCIONAL-EMERGING MARKETS TRACKER, POOL REINSURANCE COMPANY LIMITED, PRINCIPAL GLOBAL INVESTORS FUNDS,
PUBLIC EMPLOYEES' LONG-TERM CARE FUND, RUSSEL INVESTIMENT FUNDS NON.US. FUND, RUSSELL INSTITUTIONAL FUNDS, LLC-RUSSELL GLOBAL EQUITY P
F, RUTGERS, THE STATE UNIVERSITY, SAS TRUSTEE CORPORATION POOLED FUND, SBC MASTER PENSION TRUST, SCHWAB FUNDAMENTAL EMERG0ING MARKETS
LARGE COMPANY INDEX ETF, SCHWAB FUNDAMENTAL EMERGING MARKETS LARGE COMPANY INDEX FUND, SPARTA FUNDO DE INVESTIMENTO EM ACOES - BDR NIVEL
I, SPARTAN GROUP TRUST FOR EMPLYEE BENEFIT PLANS: SPARTAN EMERG, SPP EMERGING MARKETS SRI, SSGA MSCI ACWI EX-USA INDEX</P>


<!-- Field: Page; Sequence: 38 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Gray 1pt solid"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 100%">&nbsp;</TD></TR></TABLE></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; font: 11pt Arial, Helvetica, Sans-Serif; width: 100%"><TR STYLE="vertical-align: top; text-align: left"><TD STYLE="width: 48%"><IMG SRC="sbs202407016k_001.jpg" ALT="">&nbsp;</TD><TD STYLE="width: 4%">&nbsp;</TD><TD STYLE="width: 48%"><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Companhia de Saneamento B&aacute;sico do Estado de S&atilde;o Paulo</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right; text-indent: 1in">CEO&rsquo;s Office</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">R. Costa Carvalho, 300 &ndash; Pinheiros &ndash; CEP 05429-900 &ndash; S&atilde;o Paulo - SP</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Phone: (11) 3388-8000</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">www.sabesp.com.br</P></TD></TR></TABLE></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">NON-LENDING DAILY TRUST, SSGA MSCI BRAZIL INDEX NON-LENDING
QP COMMON TRUST FUND, SSGA SPDR ETFS EUROPE I PLC, STATE OF MINNESOTA STATE EMPLOYEES RET PLAN, SHELL FOUNDATION, RUSSEL EMERGING MARKETS
EQUITY POOL, STICHTING JURIDISCH EIGENAAR ACHMEA INVESTMENT MAN, STICHTING PENSIOENFONDS HOOGOVENS, STICHTING PGGM DEPOSITARY, SUPERANNUATION
FUNDS MANAGEMENT CORPORATION OF S AUSTRALIA, STICHTING PENSIOENFONDS ING, STRIVE EMERGING MARKETS EX-CHINA ETF, SWISSCANTO (LU) EQUITY
FUND, SYDBANK A/S, SYMMETRY PANORAMIC GLOBAL EQUITY FUND, TACAMI FIM PREVIDENCIARIO, TEACHER RETIREMENT SYSTEM OF TEXAS, SCHWAB EMERGING
MARKETS EQUITY ETF, SEI INST INVEST TR WORLD EQ EX-US FUND, SPDR SP EMERGING MARKETS FUND, STATE ST GL ADV TRUST COMPANY INV FF TAX EX
RET PLANS, STATE STREET ICAV, STATE TREASURER OF MICH CUSTODIAN OF PUBLIC S EMPL RTMNT S, THE BANK OF N. Y. M. (INT) LTD AS T. OF I. E.
M. E. I. F. UK, THE CHASE MAN BK AS TR OF DELTA MASTER FD, THE MASTER TRUST BANK OF JAP, LTD. AS TR. FOR MTBJ400045828, THE MASTER TRUST
BANK OF JAPAN, LTD. AS T. FOR MTBJ400045835, THE BOEING COMPANY EMPLOYEE RETIREMENT PLANS MASTER TRUST, THE EMERGING M.S. OF THE DFA I.T.CO.,
THE MASTER TRUST BANK OF JAPAN, LTD. AS TRUSTEE OF, STICHTING BEDRIJFSTAKPENSIOENFONDS VOOR DE DETAILHANDEL, STICHTING PHILIPS PENSIOENFONDS,
GLOBAL X CLEAN WATER UCITS ETF, THE PENSION RESERVES INVESTMENT MANAGEMENT BOARD, THE SAUDI SECOND INVESTMENT COMPANY, THE STATE TEACHERS
RETIREMENT SYSTEM OF OHIO, TEACHERS RETIREMENT ALLOWANCES, GUARDIAN GLOBAL UTILITIES VIP FUND, TELUS PENSIONS MASTER TRUST, THE HARTFORD
BAL FD, A SRS OF THE HARTFORD MUTUAL FDS, INC, GUIDEMARK EMERGING MARKETS FUND, THE HARTFORD INTERNATIONAL VALUE FUND, HANDELSBANKEN BRASILIEN
TEMA, HARTFORD INTERNATIONAL CAPITAL APPRECIATION FUND, THE SEVENTH SWEDISH NATIONAL PENSION FUND - AP7 EQUITY FUND, HSBC BANK PLC AS
TRUSTEE OF STATE STREET AUT EMERG, ST STR MSCI ACWI EX USA IMI SCREENED NON-LENDING COMM TR FD, STATE STREET IRELAND UNIT TRUST, INTERNATIONAL
EQUITIES PASSIVE B UNIT TRUST, TRINITY COLLEGE CAMBRIDGE, SUNAMERICA SERIES TRUST SA EMERGING MARKETS EQUITY, TRUE POTENTIAL ADM LLP OEIC
2 TRUE POTENTIAL PICTET AGGRESSI, TRUE POTENTIAL ADM LLP OEIC 2 TRUE POTENTIAL PICTET CAUTIOUS, TRUE POTENTIAL ADM LLP OEIC 2 TRUE POTENTIAL
PICTET GROWTH, TT ENVIRONMENTAL SOLUTIONS FUND, A SUB FUND OF TT, TRUE POTENTIAL ADM LLP OEIC 2 TRUE POTENTIAL PICTET BALANCED, UNITED
CORPORATIONS LIMITED, TEACHERS RETIREMENT SYSTEM OF OKLAHOMA, INVESTERINGSFORENINGEN SPARINVEST INDEX EMERGING MARKETS, TEACHERS RETIREMENT
SYSTEM OF THE STATE OF ILLINOIS, INVESTERINGSFORENINGEN SYD INVEST, TEXAS PERMANENT SCHOOL FUND CORPORATION, THE BANK OF NEW YORK MELLON
EMP BEN COLLECTIVE INVEST FD PLA, THE MASTER TRUST BANK OF JAPAN, LTD. AS TRUSTEE FO, THE MASTER TRUST BANK OF JAPAN, LTD. AS TRUSTEE
FOR MUTB4000, VANGUARD EMERGING MARKETS SELECT STOCK FUND, VANGUARD TOTAL WORLD STOCK INDEX FUND, A SERIES OF, THE MONETARY AUTHORITY
OF SINGAPORE, ISHARES IV PUBLIC LIMITED COMPANY, VANGUARD EMERGING MARKETS SHARES INDEX FUND, VANGUARD EMERGING MARKETS STOCK INDEX FUND,
MSCI EQUITY INDEX FUND B - BRAZIL, VANGUARD FIDUCIARY TRT COMPANY INSTIT T INTL STK MKT INDEX T, VANGUARD INV FUNDS ICVC-VANGUARD FTSE
GLOBAL ALL CAP INDEX F, VANGUARD INVESTMENT SERIES PLC / VANGUARD ESG EMER, MOAT BB PREV MASTER FUNDO DE INVESTIMENTO EM A&Ccedil;&Otilde;ES,
TIAA-CREF FUNDS - TIAA-CREF EMERGING MARKETS EQUITY I F, TOTAL INTERNATIONAL EX U.S. I MASTER PORT OF MASTER INV PORT, VOYA EMERGING MARKETS
INDEX PORTFOLIO, VOYA MULTI-MANAGER EMERGING MARKETS EQUITY FUND, VOYA VACS SERIES EME FUND, VANGUARD F. T. C. INST. TOTAL INTL STOCK
M. INDEX TRUST II, VERDIPAPIRFONDET STOREBRAND INDEKS NYE MARKEDER, WELL MANAG FUNDS (LUXEMBOURG) - WELL EMERG MKTS R E FUND, LM VALUATION
FIA, WILMINGTON MULTI-MANAGER ALTERNATIVES FUND, WISDOMTREE EMERG MKTS QUALITY DIV GROWTH FUND, NEW YORK STATE COMMON RETIREMENT FUND,
PARKER FOUNDATION, INC., PRINCIPAL FUNDS INC. - ORIGIN EMERGING MARKETS FUND, PRINCIPAL LIFE INSURANCE COMPANY, PRUDENTIAL ASSURANCE COMPANY
SINGAPORE (PTE) LTD, PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF NEW MEX, TOP 5708 FUNDO DE INVESTIMENTO MULTIMERCADO CREDITO PRIVADO INVESTIMENTO
NO EXTERIOR, MOAT CAPITAL EQUITY HEDGE MASTER FUNDO DE INVESTIMENTO MULTIMERCADO, RUSSELL TRUST COMPANY COMMINGLED EMPLOYEE BENEFIT FUNDS
T, SCOTTISH WIDOWS INVESTMENT SOLUTIONS FUNDS ICVC- FUNDAMENTAL, SCOTTISH WIDOWS MANAGED INVESTMENT FUNDS ICVC -INT, MOBIUS LIFE LIMITED,
THE MASTER TRUST BANK OF JAPAN, LTD. AS TOS LATIN AEMF, UNIVERSAL INVEST LUXEMBOURG SA ON BEHALF OF UNIVEST, MOATMULTI SEG PREV MASTER
FUNDO DE INVESTIMENTO</P>


<!-- Field: Page; Sequence: 39 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Gray 1pt solid"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 100%">&nbsp;</TD></TR></TABLE></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; font: 11pt Arial, Helvetica, Sans-Serif; width: 100%"><TR STYLE="vertical-align: top; text-align: left"><TD STYLE="width: 48%"><IMG SRC="sbs202407016k_001.jpg" ALT="">&nbsp;</TD><TD STYLE="width: 4%">&nbsp;</TD><TD STYLE="width: 48%"><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Companhia de Saneamento B&aacute;sico do Estado de S&atilde;o Paulo</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right; text-indent: 1in">CEO&rsquo;s Office</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">R. Costa Carvalho, 300 &ndash; Pinheiros &ndash; CEP 05429-900 &ndash; S&atilde;o Paulo - SP</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Phone: (11) 3388-8000</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">www.sabesp.com.br</P></TD></TR></TABLE></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">EM A&Ccedil;&Otilde;ES, MOAT CAPITAL EH PREV FIFE
MULTIMERCADO FUNDO DE INVESTIMENTO, MOAT CAPITAL LONG BIAS FUNDO DE INVESTIMENTO DE A&Ccedil;&Otilde;ES, NFS LIMITED, NORDEA 1, SICAV-
NORDEA 1- LATIN AMERICAN EQUITY FUND, NORDEA EQUITY OPPORTUNITIES FUND, NN (L), NORDEA 1 - ALPHA 7 MA FUND, NORDEA 2 SICAV, NORDEA GENERATIONSFOND
70-TAL, NUVEEN/SEI TRUST COMPANY INVESTMENT TRUST, NORDEA 2 - VAG OPTIMISED STABLE RETURN FUND, NORDEA DEDIC. INVEST. F., SICAV-FIS-MA
LIQUID ALTER. I FUND, PICTET - GLOBAL MEGATREND SELECTION, NN PARAPLUFONDS 1 N.V, PHILADELPHIA GAS WORKS PENSION PLAN, PUBLIC SECTOR PENSION
INVESTMENT BOARD, PICTET - EMERGING MARKETS INDEX, PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO, PLATO INSTITUTIONAL INDEX FUND, RUSSELL
INVESTMENT COMPANY RUSSELL TAX-MANAGED INTERNATIONAL, RUSSELL INSTITUTIONAL FUNDS, LLC - REM EQUITY PLUS FUND, STATE STREET EMERGING MARKETS
EQUITY INDEX FUND, STATE STREET GLOBAL ADVISORS LUX SICAV - S S G E M I E FUND, CONSTELLATION BRADESCO 100 FIFE FIA, ACADIAN EMERGING
MARKETS EQUITY II FUND, LLC, MOAT CAPITAL LONG BIAS FUNDO DE INVESTIMENTO MULTIMERCADO MASTER, MC CARPA EQUITY HEDGE FUNDO DE INVESTIMENTO
EM A&Ccedil;&Otilde;ES, ONTARIO TEACHERS PENSION PLAN BOARD, ABSOLUTE PREVIDENCI&Aacute;RIO ITA&Uacute; MASTER FIM, BOMBARDIER TRUST CANADA
GLOBAL EQUITIES FUND, ARROWSTREET (DELAWARE) L/S FUND L.P., AVIVA INVESTORS, AWARE SUPER PTY LTD, BLACKROCK GLOBAL INDEX FUNDS, NORDEA
1 SICAV - GBP DIVERSIFIED RETURN FUND, CLARITAS ADVISORY ICATU PREVIDENCIA FIM, CLARITAS HEDGE MASTER FUNDO DE INVESTIMENTO MULTIMERCADO
LP, CLARITAS LONG BIAS PREV FIFE FIM, CLARITAS VALOR FIA, CORDIUS B, COMMONWEALTH EMERGING MARKETS FUND 2, COUNTY EMPLOYEES ANNUITY AND
BENEFIT FD OF THE COOK COUNTY, E-L FINANCIAL CORPORATION LIMITED, EMERGING MARKETS INDEX NON-LENDABLE FUND, FIDELITY SALEM STREET TRUST:
FIDELITY FLEX INTERNATIONAL IND, FIRST TRUST BRAZIL ALPHADEX FUND, FIRST TRUST GLL FUND PLC - FIRST TR EMERG MKTS ALPH UCITS ET, FLEXSHARES
MORNINGSTAR EMERGING MARKETS FACTOR TILT INDEX F, GENOA CAPITAL CRUISE PREV A FIFE MULTIMERCADO FUNDO DE INVESTIMENTO, GLOBAL X CLEAN
WATER ETF, GAM STAR FUND PLC, GENOA CAPITAL CRUISE PREV C FIFE FUNDO DE INVESTIMENTO MULTIMERCADO, HAND COMPOSITE EMPLOYEE BENEFIT TRUST,
HIGHLAND PUBLIC INFLATION HEDGES FUND, ISHARES ENVIRONMENTAL INFRASTRUCTURE AND INDUSTRIA, ISHARES ESG MSCI EM LEADERS ETF, ISHARES MSCI
ACWI LOW CARBON TARGET ETF, INTERNATIONAL MONETARY FUND, IU WA CORPORATE RV 25 FIM, JNL EMERGING MARKETS INDEX FUND, INTERNATIONAL EXPATRIATE
BENEFIT MASTER TRUST, INVESCO MARKETS III PLC - INV FTSE RI EMERGING MARK U ETF, INVESTERINGSFORENINGEN DANSKE INVEST SELECT, INVESTERINGSFORENINGEN
NORDEA INVEST STABIL BALANCERET KL, USAA INTERNATIONAL FUND, UTAH STATE RETIREMENT SYSTEMS, UTILICO EMERGING MARKETS TRUST PLC, XTRACKERS,
XTRACKERS (IE) PUBLIC LIMITED COMPANY, XTRACKERS MSCI EMERGING MARKETS ESG LEADERS EQUITY, NAVI FENDER MASTER FIA, GENOA CAPITAL RADAR
MASTER FUNDO DE INVESTIMENTO MULTIMERCADO, HOSPITAL AUTHRORITY PROVIDENT FUND SCHEME, HANDELSBANKEN GLOBAL INDEX CRITERIA, ISHARES EMERGING
MARKETS IMI EQUITY INDEX FUND, ISHARES PUBLIC LIMITED COMPANY, INVESTERINGSFORENINGEN NYKREDIT INVEST, TAKTISK ALLOKERING, ISHARES (DE)
I INVESTMENTAKTIENGESELLSCHAFT MIT TG, ISHARES CORE MSCI EMERGING MARKETS IMI INDEX ETF, ISHARES CORE MSCI TOTAL INTERNATIONAL STOCK ETF,
LEGAL GENERAL CCF, LEGAL GENERAL SCIENTIFIC BETA EMERGING MARKETS FUND, LLC, LEGAL GENERAL U. ETF P. LIMITED COMPANY, LEGACY CAPITAL LONG
BIASED MASTER MULTIMERCADO FIM, LEGAL GENERAL GLOBAL INFRASTRUCTURE INDEX FUND, ISHARES II PUBLIC LIMITED COMPANY, ABSOLUTE MACRO PREV
FIM, NTGI QUANTITATIVE MANAGEMENT COLLEC FUNDS TRUST, NORDEA 1 - ALPHA 10 MA FUND, PREVIHONDA1, ONEPATH GLOBAL EMERGING MARKETS SHARES(UNHEDGED)
INDEX POOL, PEOPLE S BANK OF CHINA, RARE EMERGING MARKETS FUND, QSUPER, ICATU HARTFORD APOS, BRASIL WA FIA, METLIFE FIA, SCOTIA EMERGING
MARKETS EQUITY INDEX TRACKER ETF, SCOTIA PRIVATE EMERGING MARKETS POOL, SEI INSTITUTIONAL INVESTMENTS TRUST SWE EX-US FUND, RUSSEL OVERSEAS
EQUITY POOL, SSGA SPDR ETFS EUROPE II PUBLIC LIMITED COMPANY, STATE STREET GLOBAL ALL CAP EQUITY EX-US INDEX PORTFOLIO, STICHTING DEPOSITARY
APG EME MULTI CLIENT POOL, STICHTING PENSIOENFONDS PGB, EWP PA FUND, LTD., SSTL AS DEPOSITARY OF FP BRUNEL PENSION PARTNERSHI, STATE OF
ALASKA RETIREMENT AND BENEFITS PLANS, STATE OF WYOMING, CLARITAS LONG BIAS FUNDO DE INVESTIMENTO MULTIMERCADO, NAVI LONG SHORT XP SEGUROS
PREVID&Ecirc;NCIA FIM, SWISSCANTO (LU), THE HARTFORD GLOBAL REAL ASSET FUND, SPAENGLER IQAM INVEST GMBH FOR SPAENGLER IQAM EQ EMER MKTS,
SPARTAN GROUP TRUST FOR EMPLOYEE BENEFIT PLANS: SP,</P>


<!-- Field: Page; Sequence: 40 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Gray 1pt solid"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 100%">&nbsp;</TD></TR></TABLE></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; font: 11pt Arial, Helvetica, Sans-Serif; width: 100%"><TR STYLE="vertical-align: top; text-align: left"><TD STYLE="width: 48%"><IMG SRC="sbs202407016k_001.jpg" ALT="">&nbsp;</TD><TD STYLE="width: 4%">&nbsp;</TD><TD STYLE="width: 48%"><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Companhia de Saneamento B&aacute;sico do Estado de S&atilde;o Paulo</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right; text-indent: 1in">CEO&rsquo;s Office</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">R. Costa Carvalho, 300 &ndash; Pinheiros &ndash; CEP 05429-900 &ndash; S&atilde;o Paulo - SP</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Phone: (11) 3388-8000</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">www.sabesp.com.br</P></TD></TR></TABLE></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">SPP EMERGING MARKETS PLUS, VERIZON MASTER SAVINGS
TRUST, VANGUARD ESG INTERNATIONAL, CITIPREVI TITANIUM FIA, VANGUARD FUNDS PLC / VANGUARD ESG EMERGING MARKETS, VANGUARD FUNDS PLC / VANGUARD
ESG GLOBAL ALL CAP U, TRANSAMERICA EMERGING MARKETS OPPORTUNITIES, TRUE POTENTIAL ADM LLP OEIC 2 TRUE POTENTIAL PICTET DEFENSIV, WELLINGTON
COMPOUND GROWTH, L.P., WELLINGTON DIVERSIFIED INFLATION HEDGES FUND, WASHINGTON STATE INVESTMENT BOARD, LEGG MASON LONG &amp; SHORT M,
WA PREV IBRX ALPHA MASTER, WM POOL - EQUITIES TRUST NO 74, VOYA VACS INDEX SERIES EM PORTFOLIO, WEST YORKSHIRE PENSION FUND, WA IBOVESPA
ATIVO FIA, POPLAR TREE FUND OF AMERICAN INVESTMENT TRUST, PRINCIPAL FUNDS, INC-INTERNATIONAL EMERGING MARKETS FUND, MC EQUITY HEDGE PLUS
MASTER FUNDO DE INVESTIMENTO MULTIMERCADO, PICTET - WATER, RIZE UCITS ICAV, STATE STREET VARIABLE INSURANCE SERIES FUNDS, INC, PREVIHONDA
PL APOSENT, ABSOLUTE PACE LONG BIASED MASTER FIA, ABSOLUTE VERTEX MASTER FIM, ABSOLUTE VERTEX PREV FIFE FIM, HANDELSBANKEN EMERGING MARKETS
INDEX, BW DMO FUND, LTD., COLONIAL FIRST STATE WHOLESALE INDEXED GLOBAL SHAR, COMMINGLED PENSION TRUST FUND (EMERGING MARKETS EQUITY INDEX,
CONNECTICUT GENERAL LIFE INSURANCE COMPANY, DWS INVEST CLIMATE TECH, EMERGING MARKETS EQUITY FOCUS PORTFOLIO, FRANKLIN LIBERTYQT EMERGING
MARKETS INDEX ETF, BLACKROCK CDN MSCI EMERGING MARKETS INDEX FUND, ABSOLUTE BRASILPREV FIFE FIM, ABSOLUTE FIA FIFE PREV, CENTRAL PROVIDENT
FUND BOARD, ABERDEEN INV FUNDS ICVC III - ABERDEEN GLOBAL EMERG M Q E FD, ABSOLUTE HEDGE MASTER FIM, ARROWSTREET CAPITAL NEWBURY FUND
LIMITED, VANGUARD FUNDS PUBLIC LIMITED COMPANY, WELLINGTON GLOBAL PERSPECTIVES FUND (CANADA), SCHRODER INTERNATIONAL SELECTION FUND, CHANG
HWA CO BANK, LTD IN ITS C AS M CUST OF N B FUND, ABSOLUTE PACE PREV FIFE FIA, AEGON CUSTODY BV, ALASKA PERMANENT FUND, ALASKA COMMON TRUST
FUND, ALBERTA INVESTMENT MANAGEMENT CORPORATION, ARGUCIA INCOME FUNDO DE INVESTIMENTO EM ACOES, ARROWSTREET CAPITAL GLOBAL EQUITY LONG/SHORT
FUND LIMITED, PRINCIPAL FINANCIAL SERVICES, INC, COMMONWEALTH SUPERANNUATION CORPORATION, CUSTODY BANK OF JAPAN, LTD. RE: EMERG EQUITY
PASSIVE MOTHR F, CLINTON NUCLEAR POWER PLANT QUALIFIED FUND, RUSSELL INSTITUTIONAL FDS, LLC - RI EQUITY FD, AVADIS FUND - AKTIEN EMERGING
MARKETS INDEX, AVADIS FUND, CATHAY UNITED BANK, IN ITS CAPACITY AS MASTER COEIB FUND, EQ/EMERGING MARKETS EQUITY PLUS PORTFOLIO, EMERGING
MARKETS EQUITY INDEX MASTER FUND, EQUITAS SELECTION INSTITUCIONAL MASTER FI A&Ccedil;&Otilde;ES, GAM INVESTMENT MANAGEMENT (SWITZERLAND)
AG ON BEHA, GENOA CAPITAL ARPA MASTER FUNDO DE INVESTIMENTO MULTIMERCADO, FUNDO PETROS FOF CLARITAS INSTITUCIONAL FIM, FIDELITY INVESTMENT
FUNDS-FIDELITY SUST. WATER WASTE FUND, FIDELITY SALEM STREET T: FIDELITY E M INDEX FUND, FIDELITY SALEM STREET T: FIDELITY TOTAL INTE
INDEX FUND, FIRST TRUST LATIN AMERICA ALPHADEX FUND, 3G RADAR MASTER FIA, ABERDEEN INVESTMENT FUNDS UK ICVC II - ABERDEEN EM, ABSOLUTE
ALPHA GLOBAL II MASTER FIA, ABSOLUTE ENDURANCE MASTER FIA, MERCER QIF FUND PLC, ABSOLUTE MACRO FD INCENT INFR MULT CP, AP PENSION LIVSFORSIKRINGSAKTIESELSKAB,
AMERICAN HEART ASSOCIATION, INC., ANDRA AP-FONDEN, ABSOLUTE PREVIDENCI&Aacute;RIO MASTER II FIM, APOSTLE PEOPLE AND PLANET DIVERSIFIED
FUND, AQR INNOVATION FUND, L.P., AQR UCITS FUNDS, ARERO - DER WELTFONDS -NACHHALTIG, ARGUCIA ENDOWMENT FUNDO DE INV MULTIMERCADO, ARIZONA
PSPRS TRUST, ARKANSAS TEACHER RETIREMENT SYSTEM, ARROWSTREET CLARENDON TRUST FUND, ARROWSTREET GLOBAL EQUITY ACWI TRUST FUND, AVIVA I
INVESTMENT FUNDS ICVC - AVIVA I INTERNATIONAL I T F, NV AM FAMILIA PREVIDENCIA FIA, BANK SINOPAC CO., LTD., IN ITS CAPACITY AS MASTER,
BLACKROCK INSTITUTIONAL TRUST COMPANY NA, BLACKROCK LIFE LIMITED, BLACKROCK LIFE LIMITED - DC OVERSEAS EQUITY FUND, BLK MAGI FUND, BMO
MSCI EMERGING MARKETS INDEX ETF, BNYM MELLON CF SL EMERGING MARKETS STOCK INDEX FUND, BRIDGEWATER PURE ALPHA EURO FUND, LTD., BRIDGEWATER
PURE ALPHA STERLING FUND, LTD., BRIDGEWATER PURE ALPHA TRADING COMPANY II, LTD., BRIDGEWATER PURE ALPHA TRADING COMPANY LTD., BRITISH
COLUMBIA INVESTMENT MANAGEMENT CORPORATION, BRUNEI INVESTMENT AGENCY, CAISSE DE DEPOT ET PLACEMENT DU QUEBEC, CAIXABANK EVOLUCION, FI,
CAIXABANK CRECIMIENTO, FI, CAIXABANK OPORTUNIDAD, FI, CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM, CALIFORNIA STATE TEACHERS RETIREMENT
SYSTEM, CHEVRON UK PENSION PLAN, CANADA PENSION PLAN INVESTMENT BOARD, CANDRIAM GLOBAL EMERGING MARKETS EQUITIES FUND LP, CHUBB CORPORATION
MASTER RETIREMENT TRUST, CIBC EMERGING MARKETS EQUITY INDEX ETF, CITY OF NEW YORK GROUP TRUST, CITY OF PHILADELPHIA PUB EMPLOYEES RET
SYSTEM, CLARITAS BTG PREVIDENCIA FIM,</P>


<!-- Field: Page; Sequence: 41 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Gray 1pt solid"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 100%">&nbsp;</TD></TR></TABLE></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; font: 11pt Arial, Helvetica, Sans-Serif; width: 100%"><TR STYLE="vertical-align: top; text-align: left"><TD STYLE="width: 48%"><IMG SRC="sbs202407016k_001.jpg" ALT="">&nbsp;</TD><TD STYLE="width: 4%">&nbsp;</TD><TD STYLE="width: 48%"><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Companhia de Saneamento B&aacute;sico do Estado de S&atilde;o Paulo</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right; text-indent: 1in">CEO&rsquo;s Office</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">R. Costa Carvalho, 300 &ndash; Pinheiros &ndash; CEP 05429-900 &ndash; S&atilde;o Paulo - SP</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Phone: (11) 3388-8000</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">www.sabesp.com.br</P></TD></TR></TABLE></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">ARROWSTREET CAPITAL COPLEY FUND LIMITED, ABSOLUTE
VERTEX PREV BRADESCO FIFE PREV FIM, CLARITAS INFLACAO INSTITUCIONAL FIM, CLARITAS INSTITUCIONAL MASTER FIM, CLARITAS LONG SHORT MASTER
FUNDO INVESTIMENTO MULTIMERCADO, CLARITAS MACRO PREVIDENCIA FIFE FUNDO DE INVESTIMENTO MULTIM, ISHARES MSCI BRAZIL ETF, CLARITAS PREVIDENCIA
FIFE FUNDO DE INVESTIMENTO MULTIMERCADO, CLARITAS TOTAL RETURN MASTER FIM, CLARITAS VALOR INSTITUCIONAL II FIA, CLARITAS XP LONG BIAS
PREVIDENCIA FIFE FUNDO DE INVESTIMENTO, CLARITAS XP TOTAL RETURN PREVIDENCIA FIFE FUNDO DE INVESTIME, CLARITAS QUANT MASTER II FIA, COLLEGE
RETIREMENT EQUITIES FUND, COLONIAL FIRST STATE INVESTMENT FUND 50, CONSTELLATION 100 PREV FUNDO DE INVESTIMENTO MULTIMERCADO FIFE, CONSTELLATION
70 PREVIDENCIA FUNDO DE INVESTIMENTO PREVIDENCIA MULTIMERCADO, CONSTELLATION BP 100 PREV. <FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">FIA
FIFE, CONSTELLATION CAMBAR&Aacute; FUNDO DE INVESTIMENTO EM A&Ccedil;&Otilde;ES, CONSTELLATION ICATU 70 PREV FUNDO DE INVESTIMENTO MULTIMERCADO,
CONSTELLATION QUALIFICADO MASTER FUNDO DE INVESTIMENTO DE A&Ccedil;&Otilde;ES, CONSTELLATION SULAMERICA PREV FUNDO DE INVESTIMENTO MULTIMERCADO,
CONSULTING GROUP CAPITAL MKTS FUNDS EMER MARKETS EQUITY FUND, CPPIB MAP CAYMAN SPC, CUSTODY BANK OF JAPAN, LTD. RE: SMTB DAIWA/WELLING,
DESJARDINS GLOBAL BALANCED STRATEGIC INCOME FUND, DEUTSCHE ASSET WEALTH MANAGEMENT INVESTMENT GMBH FOR D GPF, DEUTSCHE INVEST I BRAZILIAN
EQUITIES, DUKE POWER CO EMPLOYEE RETIREMENT PLAN, DWS ADVISORS EMERGING MARKETS EQUITIES-PASSIVE, DWS EMERGING MARKETS EQUITY FUND AS
SERIES OF DEUTSCHE DWS, DWS INVEST ESG GLOBAL EMERGING MARKETS EQUITIES, DWS INVEST LATIN AMERICAN EQUITIES, DWS INVESTMENT GMBH, DWS
LATIN AMERICA EQUITY FUND, EARNEST INSTITUTIONAL LLC, EATON VANCE COLLECTIVE INVESTMENT TFE BEN PLANS EM MQ EQU FD, EMER MKTS CORE EQ
PORT DFA INVEST DIMENS GROU, EMERGING MARKETS COMPLETION FUND, L.P., EMERGING MARKETS EQUITY INDEX ESG SCREENED FUND B, EMERGING MARKETS
INDEX NON-LENDABLE FUND B, EMPLOYEES RET SYSTEM OF THE STATE OF HAWAII, EQUITAS MASTER FIA BDR N&Iacute;VEL I, EQUITAS MASTER SELECTION
FI A&Ccedil;&Otilde;ES, EQUITAS PREV MASTER FI A&Ccedil;&Otilde;ES, EQUITAS PREVID&Ecirc;NCIA FI MULTIMERCADO, EURIZON CAPITAL SGR S.P.A,
EURIZON EMERGING LEADERS ESG 50 - GENNAIO 2027, EURIZON EMERGING LEADERS ESG 50 - LUGLIO 2026, EURIZON EMERGING LEADERS ESG 50 - NOVEMBRE
2026, EURIZON EMERGING LEADERS ESG 50 - SETTEMBRE 2026, EUROPEAN CENTRAL BANK, Envolve Master FIA, EXELON GENERATION COMP, LLC TAX QUALIFIED
NUCLEAR DECOMM PAR, FAROL FUNDO DE INVESTIMENTO EM ACOES, FIDELITY CONCORD STREET TRUST: FIDELITY ZERO INT. INDEX FUND, FIDELITY GLOBAL
EX-U.S. EQUITY INDEX INSTITUTIONAL, FIDELITY SALEM STREET T: FIDELITY G EX U.S INDEX FUND, FIDELITY SALEM STREET TRUST: FIDELITY INTERNATIONAL
SUSTAINA, FIDELITY SALEM STREET TRUST: FIDELITY SAI EMERGING M I FUND, FIDELITY SALEM STREET TRUST: FIDELITY SERIES G EX US I FD, FIRST
TRUST EMERGING MARKETS ALPHADEX FUND, FIRST TRUST EMERGING MARKETS HUMAN FLOURISHING ETF, FLEXSHARES MORNINGSTAR GLOBAL UPSTREAM RESOURCES
INDEX FUND, FLEXSHARES STOXX GLOBAL BOND INFRASTRUCTURE INDEX FUND, FRANKLIN LIBERTYSHARES ICAV, FRANKLIN TEMPLETON ETF TRUST - FRANKLIN
FTSE BRAZI, FRANKLIN TEMPLETON ETF TRUST - FRANKLIN FTSE LATIN, FRG FUNDO DE INVESTIMENTO EM ACOES CLARITAS, FUNDAMENTAL LOW V I E M EQUITY,
FUNDO DE INVESTIMENTO EM A&Ccedil;&Otilde;ES S&Atilde;O CONRADO, FUTURE FUND BOARD OF GUARDIANS, GAM INVESTMENT MANAGEMENT (SWITZERLAND)
AG F Z I I-Z A E M P, GENERAL ORGANISATION FOR SOCIAL INSURANCE, GENOA CAPITAL ARPA MASTER FUNDO DE INVESTIMENTO EM A&Ccedil;&Otilde;ES,
JOHN HANCOCK HEDGED EQUITY INCOME FUND, GODFOND SVERIGE VARLDEN, H.E.S.T. AUSTRALIA LIMITED, HC CAPITAL TRUST THE EMERGING MARKETS PORTFOLIO,
IBM 401 (K) PLUS PLAN, IMCO EMERGING MARKETS PUBLIC EQUITY LP, INVESCO GLOBAL WATER ETF, INVESTEC GLOBAL STRATEGY FUND, INVESTERINGSFORENINGEN
D. I. I. G. E. M. R. - A. KL, INVESTERINGSFORENINGEN NORDEA INVEST EMERGING MKTS E. KL, ISHARES MSCI ACWI EX U.S. ETF, ISHARES MSCI WATER
MANAGEMENT MULTISECTOR ETF, ITA&Uacute; NAVI LONG SHORT PREVID&Ecirc;NCIA FIM, JOHN HANCOCK TRUST COMPANY COLLECTIVE INVESTMENT T, KBC
ECO FUND, MAINSTAY VP EMERGING MARKETS EQUITY PORTFOLIO, JOHN HANCOCK FUNDS II INTERNATIONAL STRATEGIC EQUITY ALLOCAT, JOHN HANCOCK VARIABLE
INS TRUST INTERN EQUITY INDEX TRUST, LATTICE EMERGING MARKETS STRATEGY ETF, LEGAL &amp; GENERAL COLLECTIVE INVESTMENT TRUST, ABU DHABI
RETIREMENT PENSIONS AND BENEFITS FUND, LEGAL &amp; GENERAL FUTURE WORLD ESG EMERGING MARKETS, LEGAL &amp; GENERAL GLOBAL EMERGING MARKETS
INDEX FUND, LEGAL &amp; GENERAL GLOBAL EQUITY INDEX FUND, NORTHERN TRUST COLLECTIVE ALL COUNTRY WORLD I (ACWI) E-U F-L, LEGAL AND GENERAL
ASSURANCE PENSIONS MNG LTD, LVIP SSGA</FONT></P>


<!-- Field: Page; Sequence: 42 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Gray 1pt solid"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 100%">&nbsp;</TD></TR></TABLE></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; font: 11pt Arial, Helvetica, Sans-Serif; width: 100%"><TR STYLE="vertical-align: top; text-align: left"><TD STYLE="width: 48%"><IMG SRC="sbs202407016k_001.jpg" ALT="">&nbsp;</TD><TD STYLE="width: 4%">&nbsp;</TD><TD STYLE="width: 48%"><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Companhia de Saneamento B&aacute;sico do Estado de S&atilde;o Paulo</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right; text-indent: 1in">CEO&rsquo;s Office</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">R. Costa Carvalho, 300 &ndash; Pinheiros &ndash; CEP 05429-900 &ndash; S&atilde;o Paulo - SP</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Phone: (11) 3388-8000</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">www.sabesp.com.br</P></TD></TR></TABLE></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">EMERGING MARKETS EQUITY INDEX FUND, MACKENZIE MAXIMUM
DIVERSIFICATION EMERGING MARKETS INDEX ETF, MAINSTAY CANDRIAM EMERGING MARKETS EQUITY FUND, MAINSTAY MACKAY INTERNATIONAL OPPORTUNITIES
FUND, MANUKA INVESTMENTS LLC, MBB PUBLIC MARKETS I LLC, MERCER EMERGING MARKETS FUND, TOP 5681 FUNDO DE INVESTIMENTO MULTIMERCADO CREDITO
PRIVADO INVESTIMENTO NO EXTERIOR, MULTIPREV FIA, NAVI LONG BIASED MASTER FIM, NAVI LONG SHORT MASTER FIM, NORDEA GENERATIONSFOND 60-TAL,
NORDEA GENERATIONSFOND 90-TAL, NORDEA STABIL, NTGI-QM COMMON DAILY EMERGING MARKETS EQUITY I F- NON L, PRINCIPAL VARIABLE CONTRACTS FUNDS
INC INT EMERG MAR ACCOUNT, REDWHEEL FUNDS - REDWHEEL SUSTAINABLE EMERGING MAR, RUSSEL INVESTMENTS GLOBAL EQUITY POOL, RUSSELL INVESTMENT
COMPANY - RUSSELL I D MARKETS FUND, RUSSELL INVESTMENT COMPANY EMERGING MARKETS FUND, RUSSELL INVESTMENT COMPANY GLOBAL EQUITY FUND, RUSSELL
INVESTMENT COMPANY PUBLIC LIMITED COMPANY, RUSSELL INVESTMENT MANAGEMENT LTD.AS T OF THE R M-A F E FUND, RUSSELL TR COMPANY COMMINGLED
E. B. F. T. R. L. D. I. S., SALT RIVER PIMA-MARICOPA INDIAN C, SANTANDER SICAV, SCHRODER INTL SELECTION F - LATIN AMERICAN, Silvio Tini
de Ara&uacute;jo, SOUTHERN CAL ED C N F Q C DC MT S ON P VD N G, SPDR MSCI EMERGING MARKETS STRATEGICFACTORS ETF, SPP AKTIEINDEXFOND GLOBAL,
STICHTING DEPOSITARY APG EMERGING MARKETS EQUITY POOL, STICHTING PENSIONENFONDS VAN DE METALEKTRO (PME), STOREBRAND SICAV, THE INCUBATION
FUND, LTD., THE MASTER T BK OF JPN, LTD AS T OF NIKKO BR EQ MOTHER FUND, THE MASTER TR BANK OF JAPAN AS TR FOR HSBC BRAZIL MOTHER FD,
THE MASTER TRUST BANK OF JAP., LTD. AS TR. FOR MTBJ400045829, THE MASTER TRUST BANK OF JAPAN, LTD. AS T F MTBJ400045832, THE MASTER TRUST
BANK OF JAPAN, LTD. AS TR FOR MUTB400045792, THE MASTER TRUST BANK OF JAPAN, LTD. AS TRU FO MTBJ400045849, THE MASTER TRUST BANK OF JAPAN,
LTD. TRUSTEE MUTB400045794, THE NOMURA T AND B CO LTD RE I E S INDEX MSCI E NO HED M FUN, THE REGENTS OF THE UNIVERSITY OF CALIFORNIA,
VANGUARD INVESTMENT SERIES PLC, VANGUARD TOTAL INTERNATIONAL STOCK INDEX FD, A SE VAN S F, MOAT CAPITAL FUNDO DE INVESTIMENTO EM A&Ccedil;&Otilde;ES
MASTER, VARIABLE INSURANCE PRODUCTS FUND II: INTERNATIONAL, VERDIPAPIRFONDET KLP AKSJE FREMVOKSENDE MARKEDER INDEKS I, VERDIPAPIRFONDET
STOREBRAND INDEKS ALLE MARKEDER, WELL MGT FUNDS (LUXEMBOURG) II SICAV - WELL GL M A T R FD, WELLINGTON MANAGEMENT FUNDS (IRELAND) PLC,
WELLINGTON MANAGEMENT FUNDS (LUXEMBOURG) III SICAV, JOHN HANCOCK DIVERSIFIED REAL ASSETS FUND, WISDOMTREE EMERGING MARKETS MULTIFACTOR
FUND, WELLINGTON TRUST COMPANY N.A., WELLINGTON TRUST COMPANY, NATIONAL ASSOCIATION MUL, WELLINGTON TRUST COMPANY, NATIONAL ASSOCIATION
MUL, WA PREV IBRX ATIVO ACOES, WA EMPRESARIAL FIA, WILMINGTON TRUST COLLECTIVE INVESTMENT TRUST - PIO, XTRACKERS MSCI ACWI EX USA ESG
LEADERS EQUITY ETF, JOHN HANCOCK INFRASTRUCTURE FUND, MACQUARIE TRUE INDEX EMERGING MARKETS FUND, KAPITALFORENINGEN LAEGERNES PENSIONSINVESTERING,
LPI AEM III, MFS DEVELOPMENT FUNDS, LLC, ABSOLUTE PREVIDENCI&Aacute;RIO MASTER FIM, MSCI ACWI EX-U.S. IMI INDEX FUND B2, LEGAL &amp; GENERAL
INTERNATIONAL INDEX TRUST, MANAGED PENSION FUNDS LIMITED, BEWAARSTICHTING NNIP I, AUSTRALIANSUPER PTY LTD AS TRUSTEE FOR AUSTRALIASUPER,
BLACKROCK A. M. S. AG ON B. OF I. E. M. E. I. F. (CH), BLACKROCK ASSET MANAG IR LT I ITS CAP A M F T BKR I S FD, DESJARDINS GLOBAL BALANCED
GROWTH FUND, DESJARDINS RI EMERGING MARKETS - LOW CO2 INDEX ETF, EURIZON CAPITAL S.A., FIDELITY INVESTMENT FUNDS FIDELITY INDEX EMERG
MARKETS FUND, IN BK FOR REC AND DEV,AS TR FT ST RET PLAN AND TR/RSBP AN TR, NEW AIRWAYS PENSION SCHEME, NORDEA GENERATIONSFOND 80-TAL,
RUSSELL INVESTMENTS INTERNATIONAL SHARES FUND, SPDR SP EMERGING MARKETS ETF, GENOA CAPITAL PULSE PREV A FIFE FUNDO DE INVESTIMENTO FINANCEIRO
MULTIMERCADO &#8211; RESPONSABILIDADE LIMITADA, GENOA CAPITAL VESTAS MASTER FUNDO DE INVESTIMENTO MULTIMERCADO, LEGACY CAPITAL MASTER
FIM, LEGACY CAPITAL ALPHA MASTER FIM, KBC EQUITY FUND, CIBC EMERGING MARKETS INDEX FUND, CITITRUST LIM AS TR OF BLACK PREMIER FDS- ISH
WOR EQU IND FD, CITITRUST LTD A T VANG FDS S - VANGUARD MODERATE GROWTH FUND, CLARITAS QUANT MASTER FIM, CUSTODY B. OF J. LTD. RE: STB
D. E. E. F. I. M. F., CUSTODY BANK OF JAPAN, LTD. AS TR F HSBC BRAZIL NEW MO FUND, CUSTODY BANK OF JAPAN, LTD. STB BRAZIL STOCK M. F.,
ACTIVE M INTERNATIONAL EQUITY FUND, ASCENSION ALPHA FUND, LLC, DEUTSCHE ASSET MANAGEMENT S.A. FOR ARERO - DER WEL, DEUTSCHE X-TRACKERS
MSCI ALL WORLD EX US HEDGED EQUITY ETF, DIMENSIONAL EMERGING CORE EQUITY MARKET ETF OF DIM, DFC EMERGING MARKETS EQUITY FUND</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">&nbsp;</P>


<!-- Field: Page; Sequence: 43 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Gray 1pt solid"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 100%">&nbsp;</TD></TR></TABLE></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; font: 11pt Arial, Helvetica, Sans-Serif; width: 100%"><TR STYLE="vertical-align: top; text-align: left"><TD STYLE="width: 48%"><IMG SRC="sbs202407016k_001.jpg" ALT="">&nbsp;</TD><TD STYLE="width: 4%">&nbsp;</TD><TD STYLE="width: 48%"><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Companhia de Saneamento B&aacute;sico do Estado de S&atilde;o Paulo</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right; text-indent: 1in">CEO&rsquo;s Office</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">R. Costa Carvalho, 300 &ndash; Pinheiros &ndash; CEP 05429-900 &ndash; S&atilde;o Paulo - SP</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Phone: (11) 3388-8000</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">www.sabesp.com.br</P></TD></TR></TABLE></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">&nbsp;</P>


<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0 2.4pt 0 0; text-align: justify"><B><U>Shareholders attending the Extraordinary
Shareholders' Meeting through the remote voting form:</U></B></P>


<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">EQUITAS PREV XP MASTER FIA, GOLDMAN SACHS ETF TRUST
- GOLDMAN SACHS EMERGING M, HPE COMMON CONTRACTUAL FUND, HANDELSBANKEN LATINAMERIKA TEMA, INFRAD MASTER FUNDO DE INVESTIMENTO EM ACOES,
ISHARES MSCI EMERGING MARKETS ETF, INVESCO INVESTMENT MANAGEMENT LTD, ACTING AS MANAG, INVESCO MSCI EMERGING MARKETS ESG CLIMATE PARIS
AL, INVESCO MSCI EMERGING MARKETS ESG UNIVERSAL SCREEN, INVESTERINGSFORENINGEN D. I. I. G. AC R. - A. KL, ITAU FUNDS - LATIN AMERICA EQUITY
FUND, CLARITAS BRASILPREV FIFE FUNDO DE INVESTIMENTO MULTIMERCADO, ISHARES CORE MSCI EMERGING MARKETS ETF, AVIVA LIFE PENSIONS UK LIMITED,
AXA INVESTMENT MANAGERS SCHWEIZ AG ON BEHALF OF AX, ISHARES EMERGING MARKETS FUNDAMENTAL INDEX ETF, ISHARES ESG ADVANCED MSCI EM ETF,
ISHARES III PUBLIC LIMITED COMPANY, ISHARES MSCI BRIC ETF, ISHARES MSCI EMERGING MARKETS EX CHINA ETF, ISHARES S&amp;P GLOBAL WATER INDEX
FUND, IPROFILE INTERNATIONAL EQUITY PRIVATE POOL, ISHARES EDGE MSCI MULTIFACTOR EMERGING MARKETS ETF, ISHARES MSCI ACWI ETF, IVESCO FTSE
RAFI EMERGING MARKETS ETF, JOHN HANCOCK FUNDS II MULTI-ASSET ABSOLUTE RETURN FUND, JOHN HANCOCK FUNDS II EMERGING MARKETS FUND, KAPITALFORENINGEN
INVESTIN PRO, VELLIV EMERGING MA, KAPITALFORENINGEN SAMPENSION INVEST, GEM ENHANCED, KRANESHARES MSCI EMERGING MARKETS EX CHINA INDEX
E, JPMORGAN BETABUILDERS EMERGING MARKETS EQUITY ETF, KAPITALFORENINGEN EMD INVEST, EMERGING MARKETS IND, LEGAL &amp; GENERAL ICAV, LEIA
GROUP TRUST, LGIASUPER TRUSTEE, LEGAL AND GENERAL ASSURANCE SOCIETY LIMITED, LIONTRUST INVESTMENT FUNDS I - LIONTRUST LATIN AMERICA FUND,
LOS ANGELES COUNTY EMPLOYEES RET ASSOCIATION, LGCY FI EM ACOES, MALIKO INVESTMENTS LLC, MACQUARIE MULTI-FACTOR FUND, MGTS AFH DA GLOBAL
EMERGING MARKETS EQUITY FUND, JPMORGAN DIVERSIFIED RETURN EMERGING MARKETS EQUITY ETF, MERCER EMERGING MARKETS EQUITY FUND, CONSTELLATION
MASTER FUNDO DE INVESTIMENTO DE A&Ccedil;&Otilde;ES, MERCER UCITS COMMON CONTRACTUAL FUND, MGI FUNDS PLC, MINISTRY OF ECONOMY AND FINANCE,
NAT WEST BK PLC AS TR OF ST JAMES PL ST MANAGED UNIT TRUST, NATIONAL COUNCIL FOR SOCIAL SECURITY FUND, NATIONAL PENSION INSURANCE FUND,
MEDIOLANUM BEST BRANDS - MEDIOLANUM GLOBAL IMPACT, MERCER PRIVATE WEALTH INTERNATIONAL FOCUSED EQUITY POOL, NATIONAL EMPLOYMENT SAVINGS
TRUST, NAVI INSTITUCIONAL MASTER FIA, NEW IRELAND ASSURANCE COMPANY PUBLIC LIMITED COMPANY, GENOA CAPITAL CRUISE BRASILPREV FIFE FUNDO
DE INVESTIMENTO MULTIMERCADO, NEW ZEALAND SUPERANNUATION FUND, MERCER EMERGING MARKETS SHARES FUND, MICROBANK SI IMPACTO RENTA VARIABLE,
FI, NEW SOUTH WALLES TR CORP AS TR FOR THE TC EMER MKT SHAR FUND, NGS SUPER, NORDEA 1 SICAV NORDEA 1 STABLE EMERGING MARKETS EQUITY FUND,
NORDEA 2, SICAV - EMERGING MKTS SUSTAINABLE ENHANCED EQ FUND, NORTHERN TRUST COLLECTIVE EMERGING MARKETS INDEX FUND-LEND, NORTHERN TRUST
UCITS FGR FUND, NTCC COLLECTIVE FUNDS FOR EMPLOYEE BENEFIT TRUSTS, NORDEA 1 SICAV - NORDEA 1 STABLE RETURN FUND, NORDEA DEDICATED INV
FD, SICAV-FIS-MA LIQ ALTERNATIVE II FD, ABSOLUTE ENDURANCE IVP FIA, NORTHERN TRUST INVESTIMENT FUNDS PLC, NAVI A PREVID&Ecirc;NCIA FI
EM A&Ccedil;&Otilde;ES MASTER, NAVI CRUISE MASTER FIA, NEBRASKA PUBLIC EMPLOYEES RETIREMENT SYSTEMS, PARAMETRIC EMERGING MARKETS FUND,
PACIFIC SELECT FUND - PD EMERGING MARKETS PORTFOLIO, NEW YORK STATE TEACHERS RETIREMENT SYSTEM, PARAMETRIC TMEMC FUND, LP, NORTHERN EMERGING
MARKETS EQUITY INDEX FUND, NORTHERN TRUST COLLECTIVE EMERGING MARKETS EX CHIN, NTGI QM COMMON DAILY ALL COUNT WORLD EXUS EQU INDEX FD
LEND, NORDEA 1- ALPHA 15 MA FUND, ABSOLUTE PACE MASTER FIM, NORGES BANK, NTGI-QM COMMON DAC WORLD EX-US INVESTABLE MIF - LENDING, PARTNERS
GROUP LISTED INVESTMENTS SICAV - LISTED INFRASTRUCT, PACIFIC SELECT FUND, PICTET CH INSTITUCIONAL-EMERGING MARKETS TRACKER, POOL REINSURANCE
COMPANY LIMITED, PRINCIPAL GLOBAL INVESTORS FUNDS, PUBLIC EMPLOYEES' LONG-TERM CARE FUND, RUSSEL INVESTIMENT FUNDS NON.US. FUND, RUSSELL
INSTITUTIONAL FUNDS, LLC-RUSSELL GLOBAL EQUITY P F, RUTGERS, THE STATE UNIVERSITY, SAS TRUSTEE CORPORATION POOLED FUND, SBC MASTER PENSION
TRUST, SCHWAB FUNDAMENTAL EMERG0ING MARKETS LARGE COMPANY INDEX ETF, SCHWAB FUNDAMENTAL EMERGING MARKETS LARGE COMPANY INDEX FUND, SPARTA
FUNDO DE INVESTIMENTO EM ACOES - BDR NIVEL I, SPARTAN GROUP TRUST FOR EMPLYEE BENEFIT PLANS: SPARTAN EMERG, SPP EMERGING MARKETS SRI,
SSGA MSCI ACWI EX-USA INDEX NON-LENDING DAILY</P>


<!-- Field: Page; Sequence: 44 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Gray 1pt solid"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 100%">&nbsp;</TD></TR></TABLE></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; font: 11pt Arial, Helvetica, Sans-Serif; width: 100%"><TR STYLE="vertical-align: top; text-align: left"><TD STYLE="width: 48%"><IMG SRC="sbs202407016k_001.jpg" ALT="">&nbsp;</TD><TD STYLE="width: 4%">&nbsp;</TD><TD STYLE="width: 48%"><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Companhia de Saneamento B&aacute;sico do Estado de S&atilde;o Paulo</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right; text-indent: 1in">CEO&rsquo;s Office</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">R. Costa Carvalho, 300 &ndash; Pinheiros &ndash; CEP 05429-900 &ndash; S&atilde;o Paulo - SP</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Phone: (11) 3388-8000</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">www.sabesp.com.br</P></TD></TR></TABLE></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">TRUST, SSGA MSCI BRAZIL INDEX NON-LENDING QP COMMON
TRUST FUND, SSGA SPDR ETFS EUROPE I PLC, STATE OF MINNESOTA STATE EMPLOYEES RET PLAN, SHELL FOUNDATION, RUSSEL EMERGING MARKETS EQUITY
POOL, STICHTING JURIDISCH EIGENAAR ACHMEA INVESTMENT MAN, STICHTING PENSIOENFONDS HOOGOVENS, STICHTING PGGM DEPOSITARY, SUPERANNUATION
FUNDS MANAGEMENT CORPORATION OF S AUSTRALIA, STICHTING PENSIOENFONDS ING, STRIVE EMERGING MARKETS EX-CHINA ETF, SWISSCANTO (LU) EQUITY
FUND, SYDBANK A/S, SYMMETRY PANORAMIC GLOBAL EQUITY FUND, TACAMI FIM PREVIDENCIARIO, TEACHER RETIREMENT SYSTEM OF TEXAS, SCHWAB EMERGING
MARKETS EQUITY ETF, SEI INST INVEST TR WORLD EQ EX-US FUND, SPDR SP EMERGING MARKETS FUND, STATE ST GL ADV TRUST COMPANY INV FF TAX EX
RET PLANS, STATE STREET ICAV, STATE TREASURER OF MICH CUSTODIAN OF PUBLIC S EMPL RTMNT S, THE BANK OF N. Y. M. (INT) LTD AS T. OF I. E.
M. E. I. F. UK, THE CHASE MAN BK AS TR OF DELTA MASTER FD, THE MASTER TRUST BANK OF JAP, LTD. AS TR. FOR MTBJ400045828, THE MASTER TRUST
BANK OF JAPAN, LTD. AS T. FOR MTBJ400045835, THE BOEING COMPANY EMPLOYEE RETIREMENT PLANS MASTER TRUST, THE EMERGING M.S. OF THE DFA I.T.CO.,
THE MASTER TRUST BANK OF JAPAN, LTD. AS TRUSTEE OF, STICHTING BEDRIJFSTAKPENSIOENFONDS VOOR DE DETAILHANDEL, STICHTING PHILIPS PENSIOENFONDS,
GLOBAL X CLEAN WATER UCITS ETF, THE PENSION RESERVES INVESTMENT MANAGEMENT BOARD, THE SAUDI SECOND INVESTMENT COMPANY, THE STATE TEACHERS
RETIREMENT SYSTEM OF OHIO, TEACHERS RETIREMENT ALLOWANCES, GUARDIAN GLOBAL UTILITIES VIP FUND, TELUS PENSIONS MASTER TRUST, THE HARTFORD
BAL FD, A SRS OF THE HARTFORD MUTUAL FDS, INC, GUIDEMARK EMERGING MARKETS FUND, THE HARTFORD INTERNATIONAL VALUE FUND, HANDELSBANKEN BRASILIEN
TEMA, HARTFORD INTERNATIONAL CAPITAL APPRECIATION FUND, THE SEVENTH SWEDISH NATIONAL PENSION FUND - AP7 EQUITY FUND, HSBC BANK PLC AS
TRUSTEE OF STATE STREET AUT EMERG, ST STR MSCI ACWI EX USA IMI SCREENED NON-LENDING COMM TR FD, STATE STREET IRELAND UNIT TRUST, INTERNATIONAL
EQUITIES PASSIVE B UNIT TRUST, TRINITY COLLEGE CAMBRIDGE, SUNAMERICA SERIES TRUST SA EMERGING MARKETS EQUITY, TRUE POTENTIAL ADM LLP OEIC
2 TRUE POTENTIAL PICTET AGGRESSI, TRUE POTENTIAL ADM LLP OEIC 2 TRUE POTENTIAL PICTET CAUTIOUS, TRUE POTENTIAL ADM LLP OEIC 2 TRUE POTENTIAL
PICTET GROWTH, TT ENVIRONMENTAL SOLUTIONS FUND, A SUB FUND OF TT, TRUE POTENTIAL ADM LLP OEIC 2 TRUE POTENTIAL PICTET BALANCED, UNITED
CORPORATIONS LIMITED, TEACHERS RETIREMENT SYSTEM OF OKLAHOMA, INVESTERINGSFORENINGEN SPARINVEST INDEX EMERGING MARKETS, TEACHERS RETIREMENT
SYSTEM OF THE STATE OF ILLINOIS, INVESTERINGSFORENINGEN SYD INVEST, TEXAS PERMANENT SCHOOL FUND CORPORATION, THE BANK OF NEW YORK MELLON
EMP BEN COLLECTIVE INVEST FD PLA, THE MASTER TRUST BANK OF JAPAN, LTD. AS TRUSTEE FO, THE MASTER TRUST BANK OF JAPAN, LTD. AS TRUSTEE
FOR MUTB4000, VANGUARD EMERGING MARKETS SELECT STOCK FUND, VANGUARD TOTAL WORLD STOCK INDEX FUND, A SERIES OF, THE MONETARY AUTHORITY
OF SINGAPORE, ISHARES IV PUBLIC LIMITED COMPANY, VANGUARD EMERGING MARKETS SHARES INDEX FUND, VANGUARD EMERGING MARKETS STOCK INDEX FUND,
MSCI EQUITY INDEX FUND B - BRAZIL, VANGUARD FIDUCIARY TRT COMPANY INSTIT T INTL STK MKT INDEX T, VANGUARD INV FUNDS ICVC-VANGUARD FTSE
GLOBAL ALL CAP INDEX F, VANGUARD INVESTMENT SERIES PLC / VANGUARD ESG EMER, MOAT BB PREV MASTER FUNDO DE INVESTIMENTO EM A&Ccedil;&Otilde;ES,
TIAA-CREF FUNDS - TIAA-CREF EMERGING MARKETS EQUITY I F, TOTAL INTERNATIONAL EX U.S. I MASTER PORT OF MASTER INV PORT, VOYA EMERGING MARKETS
INDEX PORTFOLIO, VOYA MULTI-MANAGER EMERGING MARKETS EQUITY FUND, VOYA VACS SERIES EME FUND, VANGUARD F. T. C. INST. TOTAL INTL STOCK
M. INDEX TRUST II, VERDIPAPIRFONDET STOREBRAND INDEKS NYE MARKEDER, WELL MANAG FUNDS (LUXEMBOURG) - WELL EMERG MKTS R E FUND, LM VALUATION
FIA, WILMINGTON MULTI-MANAGER ALTERNATIVES FUND, WISDOMTREE EMERG MKTS QUALITY DIV GROWTH FUND, PARKER FOUNDATION, INC., PRINCIPAL FUNDS
INC. - ORIGIN EMERGING MARKETS FUND, PRINCIPAL LIFE INSURANCE COMPANY, PRUDENTIAL ASSURANCE COMPANY SINGAPORE (PTE) LTD, PUBLIC EMPLOYEES
RETIREMENT ASSOCIATION OF NEW MEX, TOP 5708 FUNDO DE INVESTIMENTO MULTIMERCADO CREDITO PRIVADO INVESTIMENTO NO EXTERIOR, MOAT CAPITAL
EQUITY HEDGE MASTER FUNDO DE INVESTIMENTO MULTIMERCADO, RUSSELL TRUST COMPANY COMMINGLED EMPLOYEE BENEFIT FUNDS T, SCOTTISH WIDOWS INVESTMENT
SOLUTIONS FUNDS ICVC- FUNDAMENTAL, SCOTTISH WIDOWS MANAGED INVESTMENT FUNDS ICVC -INT, MOBIUS LIFE LIMITED, THE MASTER TRUST BANK OF JAPAN,
LTD. AS TOS LATIN AEMF, UNIVERSAL INVEST LUXEMBOURG SA ON BEHALF OF UNIVEST, MOATMULTI SEG PREV MASTER FUNDO DE INVESTIMENTO EM A&Ccedil;&Otilde;ES,
MOAT CAPITAL EH PREV FIFE MULTIMERCADO</P>


<!-- Field: Page; Sequence: 45 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Gray 1pt solid"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 100%">&nbsp;</TD></TR></TABLE></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; font: 11pt Arial, Helvetica, Sans-Serif; width: 100%"><TR STYLE="vertical-align: top; text-align: left"><TD STYLE="width: 48%"><IMG SRC="sbs202407016k_001.jpg" ALT="">&nbsp;</TD><TD STYLE="width: 4%">&nbsp;</TD><TD STYLE="width: 48%"><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Companhia de Saneamento B&aacute;sico do Estado de S&atilde;o Paulo</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right; text-indent: 1in">CEO&rsquo;s Office</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">R. Costa Carvalho, 300 &ndash; Pinheiros &ndash; CEP 05429-900 &ndash; S&atilde;o Paulo - SP</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Phone: (11) 3388-8000</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">www.sabesp.com.br</P></TD></TR></TABLE></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">FUNDO DE INVESTIMENTO, MOAT CAPITAL LONG BIAS FUNDO
DE INVESTIMENTO DE A&Ccedil;&Otilde;ES, NFS LIMITED, NORDEA 1, SICAV- NORDEA 1- LATIN AMERICAN EQUITY FUND, NORDEA EQUITY OPPORTUNITIES
FUND, NN (L), NORDEA 1 - ALPHA 7 MA FUND, NORDEA 2 SICAV, NORDEA GENERATIONSFOND 70-TAL, NUVEEN/SEI TRUST COMPANY INVESTMENT TRUST, NORDEA
2 - VAG OPTIMISED STABLE RETURN FUND, NORDEA DEDIC. INVEST. F., SICAV-FIS-MA LIQUID ALTER. I FUND, PICTET - GLOBAL MEGATREND SELECTION,
NN PARAPLUFONDS 1 N.V, PHILADELPHIA GAS WORKS PENSION PLAN, PUBLIC SECTOR PENSION INVESTMENT BOARD, PICTET - EMERGING MARKETS INDEX, PUBLIC
EMPLOYEES RETIREMENT SYSTEM OF OHIO, PLATO INSTITUTIONAL INDEX FUND, RUSSELL INVESTMENT COMPANY RUSSELL TAX-MANAGED INTERNATIONAL, RUSSELL
INSTITUTIONAL FUNDS, LLC - REM EQUITY PLUS FUND, STATE STREET EMERGING MARKETS EQUITY INDEX FUND, STATE STREET GLOBAL ADVISORS LUX SICAV
- S S G E M I E FUND, CONSTELLATION BRADESCO 100 FIFE FIA, ACADIAN EMERGING MARKETS EQUITY II FUND, LLC, MOAT CAPITAL LONG BIAS FUNDO
DE INVESTIMENTO MULTIMERCADO MASTER, MC CARPA EQUITY HEDGE FUNDO DE INVESTIMENTO EM A&Ccedil;&Otilde;ES, ONTARIO TEACHERS PENSION PLAN
BOARD, ABSOLUTE PREVIDENCI&Aacute;RIO ITA&Uacute; MASTER FIM, BOMBARDIER TRUST CANADA GLOBAL EQUITIES FUND, ARROWSTREET (DELAWARE) L/S
FUND L.P., AVIVA INVESTORS, AWARE SUPER PTY LTD, BLACKROCK GLOBAL INDEX FUNDS, NORDEA 1 SICAV - GBP DIVERSIFIED RETURN FUND, CLARITAS
ADVISORY ICATU PREVIDENCIA FIM, CLARITAS HEDGE MASTER FUNDO DE INVESTIMENTO MULTIMERCADO LP, CLARITAS LONG BIAS PREV FIFE FIM, CLARITAS
VALOR FIA, CORDIUS B, COMMONWEALTH EMERGING MARKETS FUND 2, COUNTY EMPLOYEES ANNUITY AND BENEFIT FD OF THE COOK COUNTY, E-L FINANCIAL
CORPORATION LIMITED, EMERGING MARKETS INDEX NON-LENDABLE FUND, FIDELITY SALEM STREET TRUST: FIDELITY FLEX INTERNATIONAL IND, FIRST TRUST
BRAZIL ALPHADEX FUND, FIRST TRUST GLL FUND PLC - FIRST TR EMERG MKTS ALPH UCITS ET, FLEXSHARES MORNINGSTAR EMERGING MARKETS FACTOR TILT
INDEX F, FORD MOTOR CO DEFINED BENEF MASTER TRUST, GENOA CAPITAL CRUISE PREV A FIFE MULTIMERCADO FUNDO DE INVESTIMENTO, GLOBAL X CLEAN
WATER ETF, GAM STAR FUND PLC, GENOA CAPITAL CRUISE PREV C FIFE FUNDO DE INVESTIMENTO MULTIMERCADO, HAND COMPOSITE EMPLOYEE BENEFIT TRUST,
HIGHLAND PUBLIC INFLATION HEDGES FUND, ISHARES ENVIRONMENTAL INFRASTRUCTURE AND INDUSTRIA, ISHARES ESG MSCI EM LEADERS ETF, ISHARES MSCI
ACWI LOW CARBON TARGET ETF, INTERNATIONAL MONETARY FUND, IU WA CORPORATE RV 25 FIM, JNL EMERGING MARKETS INDEX FUND, INTERNATIONAL EXPATRIATE
BENEFIT MASTER TRUST, INVESCO MARKETS III PLC - INV FTSE RI EMERGING MARK U ETF, INVESTERINGSFORENINGEN DANSKE INVEST SELECT, INVESTERINGSFORENINGEN
NORDEA INVEST STABIL BALANCERET KL, USAA INTERNATIONAL FUND, UTAH STATE RETIREMENT SYSTEMS, UTILICO EMERGING MARKETS TRUST PLC, XTRACKERS,
XTRACKERS (IE) PUBLIC LIMITED COMPANY, XTRACKERS MSCI EMERGING MARKETS ESG LEADERS EQUITY, NAVI FENDER MASTER FIA, GENOA CAPITAL RADAR
MASTER FUNDO DE INVESTIMENTO MULTIMERCADO, HOSPITAL AUTHRORITY PROVIDENT FUND SCHEME, HANDELSBANKEN GLOBAL INDEX CRITERIA, ISHARES EMERGING
MARKETS IMI EQUITY INDEX FUND, ISHARES PUBLIC LIMITED COMPANY, INVESTERINGSFORENINGEN NYKREDIT INVEST, TAKTISK ALLOKERING, ISHARES (DE)
I INVESTMENTAKTIENGESELLSCHAFT MIT TG, ISHARES CORE MSCI EMERGING MARKETS IMI INDEX ETF, ISHARES CORE MSCI TOTAL INTERNATIONAL STOCK ETF,
LEGAL GENERAL CCF, LEGAL GENERAL SCIENTIFIC BETA EMERGING MARKETS FUND, LLC, LEGAL GENERAL U. ETF P. LIMITED COMPANY, LEGACY CAPITAL LONG
BIASED MASTER MULTIMERCADO FIM, LEGAL GENERAL GLOBAL INFRASTRUCTURE INDEX FUND, ISHARES II PUBLIC LIMITED COMPANY, ABSOLUTE MACRO PREV
FIM, NTGI QUANTITATIVE MANAGEMENT COLLEC FUNDS TRUST, NORDEA 1 - ALPHA 10 MA FUND, PREVIHONDA1, ONEPATH GLOBAL EMERGING MARKETS SHARES(UNHEDGED)
INDEX POOL, PEOPLE S BANK OF CHINA, RARE EMERGING MARKETS FUND, QSUPER, ICATU HARTFORD APOS, BRASIL WA FIA, METLIFE FIA, SCOTIA EMERGING
MARKETS EQUITY INDEX TRACKER ETF, SCOTIA PRIVATE EMERGING MARKETS POOL, SEI INSTITUTIONAL INVESTMENTS TRUST SWE EX-US FUND, RUSSEL OVERSEAS
EQUITY POOL, SSGA SPDR ETFS EUROPE II PUBLIC LIMITED COMPANY, STATE STREET GLOBAL ALL CAP EQUITY EX-US INDEX PORTFOLIO, STICHTING DEPOSITARY
APG EME MULTI CLIENT POOL, STICHTING PENSIOENFONDS PGB, EWP PA FUND, LTD., SSTL AS DEPOSITARY OF FP BRUNEL PENSION PARTNERSHI, STATE OF
ALASKA RETIREMENT AND BENEFITS PLANS, STATE OF WYOMING, CLARITAS LONG BIAS FUNDO DE INVESTIMENTO MULTIMERCADO, NAVI LONG SHORT XP SEGUROS
PREVID&Ecirc;NCIA FIM, SWISSCANTO (LU), THE HARTFORD GLOBAL REAL ASSET FUND, SPAENGLER IQAM INVEST GMBH FOR SPAENGLER IQAM EQ EMER MKTS,
SPARTAN GROUP TRUST FOR EMPLOYEE BENEFIT PLANS: SP,</P>


<!-- Field: Page; Sequence: 46 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Gray 1pt solid"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 100%">&nbsp;</TD></TR></TABLE></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; font: 11pt Arial, Helvetica, Sans-Serif; width: 100%"><TR STYLE="vertical-align: top; text-align: left"><TD STYLE="width: 48%"><IMG SRC="sbs202407016k_001.jpg" ALT="">&nbsp;</TD><TD STYLE="width: 4%">&nbsp;</TD><TD STYLE="width: 48%"><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Companhia de Saneamento B&aacute;sico do Estado de S&atilde;o Paulo</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right; text-indent: 1in">CEO&rsquo;s Office</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">R. Costa Carvalho, 300 &ndash; Pinheiros &ndash; CEP 05429-900 &ndash; S&atilde;o Paulo - SP</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Phone: (11) 3388-8000</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">www.sabesp.com.br</P></TD></TR></TABLE></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">SPP EMERGING MARKETS PLUS, VERIZON MASTER SAVINGS
TRUST, VANGUARD ESG INTERNATIONAL, CITIPREVI TITANIUM FIA, VANGUARD FUNDS PLC / VANGUARD ESG EMERGING MARKETS, VANGUARD FUNDS PLC / VANGUARD
ESG GLOBAL ALL CAP U, TRANSAMERICA EMERGING MARKETS OPPORTUNITIES, TRIODOS SICAV I - TRIODOS FUTURE GENERATIONS FUND, TRUE POTENTIAL ADM
LLP OEIC 2 TRUE POTENTIAL PICTET DEFENSIV, WELLINGTON COMPOUND GROWTH, L.P., WELLINGTON DIVERSIFIED INFLATION HEDGES FUND, WASHINGTON
STATE INVESTMENT BOARD, LEGG MASON LONG &amp; SHORT M, WA PREV IBRX ALPHA MASTER, WM POOL - EQUITIES TRUST NO 74, VOYA VACS INDEX SERIES
EM PORTFOLIO, WEST YORKSHIRE PENSION FUND, WA IBOVESPA ATIVO FIA, POPLAR TREE FUND OF AMERICAN INVESTMENT TRUST, PRINCIPAL FUNDS, INC-INTERNATIONAL
EMERGING MARKETS FUND, MC EQUITY HEDGE PLUS MASTER FUNDO DE INVESTIMENTO MULTIMERCADO, PICTET - WATER, RIZE UCITS ICAV, STATE STREET VARIABLE
INSURANCE SERIES FUNDS, INC, PREVIHONDA PL APOSENT, ABSOLUTE PACE LONG BIASED MASTER FIA, ABSOLUTE VERTEX MASTER FIM, ABSOLUTE VERTEX
PREV FIFE FIM, HANDELSBANKEN EMERGING MARKETS INDEX, BW DMO FUND, LTD., COLONIAL FIRST STATE WHOLESALE INDEXED GLOBAL SHAR, COMMINGLED
PENSION TRUST FUND (EMERGING MARKETS EQUITY INDEX, CONNECTICUT GENERAL LIFE INSURANCE COMPANY, DWS INVEST CLIMATE TECH, EMERGING MARKETS
EQUITY FOCUS PORTFOLIO, FRANKLIN LIBERTYQT EMERGING MARKETS INDEX ETF, BLACKROCK CDN MSCI EMERGING MARKETS INDEX FUND, ABSOLUTE BRASILPREV
FIFE FIM, ABSOLUTE FIA FIFE PREV, CENTRAL PROVIDENT FUND BOARD, ABERDEEN INV FUNDS ICVC III - ABERDEEN GLOBAL EMERG M Q E FD, ABSOLUTE
HEDGE MASTER FIM, ARROWSTREET CAPITAL NEWBURY FUND LIMITED, VANGUARD FUNDS PUBLIC LIMITED COMPANY, WELLINGTON GLOBAL PERSPECTIVES FUND
(CANADA), SCHRODER INTERNATIONAL SELECTION FUND, CHANG HWA CO BANK, LTD IN ITS C AS M CUST OF N B FUND, ABSOLUTE PACE PREV FIFE FIA, AEGON
CUSTODY BV, ALASKA PERMANENT FUND, ALASKA COMMON TRUST FUND, ALBERTA INVESTMENT MANAGEMENT CORPORATION, ARGUCIA INCOME FUNDO DE INVESTIMENTO
EM ACOES, ARROWSTREET CAPITAL GLOBAL EQUITY LONG/SHORT FUND LIMITED, PRINCIPAL FINANCIAL SERVICES, INC, COMMONWEALTH SUPERANNUATION CORPORATION,
CUSTODY BANK OF JAPAN, LTD. RE: EMERG EQUITY PASSIVE MOTHR F, CLINTON NUCLEAR POWER PLANT QUALIFIED FUND, RUSSELL INSTITUTIONAL FDS, LLC
- RI EQUITY FD, AVADIS FUND - AKTIEN EMERGING MARKETS INDEX, AVADIS FUND, CATHAY UNITED BANK, IN ITS CAPACITY AS MASTER COEIB FUND, EQ/EMERGING
MARKETS EQUITY PLUS PORTFOLIO, EMERGING MARKETS EQUITY INDEX MASTER FUND, EQUITAS SELECTION INSTITUCIONAL MASTER FI A&Ccedil;&Otilde;ES,
GAM INVESTMENT MANAGEMENT (SWITZERLAND) AG ON BEHA, GENOA CAPITAL ARPA MASTER FUNDO DE INVESTIMENTO MULTIMERCADO, FUNDO PETROS FOF CLARITAS
INSTITUCIONAL FIM, FIDELITY INVESTMENT FUNDS-FIDELITY SUST. WATER WASTE FUND, FIDELITY SALEM STREET T: FIDELITY E M INDEX FUND, FIDELITY
SALEM STREET T: FIDELITY TOTAL INTE INDEX FUND, FIRST TRUST LATIN AMERICA ALPHADEX FUND, 3G RADAR MASTER FIA, ABERDEEN INVESTMENT FUNDS
UK ICVC II - ABERDEEN EM, ABSOLUTE ALPHA GLOBAL II MASTER FIA, ABSOLUTE ENDURANCE MASTER FIA, MERCER QIF FUND PLC, ABSOLUTE MACRO FD INCENT
INFR MULT CP, KAPITALFORENINGEN INVESTIN PRO, GLOBALE AKTIER IND, AP PENSION LIVSFORSIKRINGSAKTIESELSKAB, AMERICAN HEART ASSOCIATION,
INC., ANDRA AP-FONDEN, ABSOLUTE PREVIDENCI&Aacute;RIO MASTER II FIM, APOSTLE PEOPLE AND PLANET DIVERSIFIED FUND, AQR INNOVATION FUND,
L.P., AQR UCITS FUNDS, ARERO - DER WELTFONDS -NACHHALTIG, ARGUCIA ENDOWMENT FUNDO DE INV MULTIMERCADO, ARIZONA PSPRS TRUST, ARKANSAS TEACHER
RETIREMENT SYSTEM, ARROWSTREET CLARENDON TRUST FUND, ARROWSTREET GLOBAL EQUITY ACWI TRUST FUND, AVIVA I INVESTMENT FUNDS ICVC - AVIVA
I INTERNATIONAL I T F, NV AM FAMILIA PREVIDENCIA FIA, BANK SINOPAC CO., LTD., IN ITS CAPACITY AS MASTER, BLACKROCK INSTITUTIONAL TRUST
COMPANY NA, BLACKROCK LIFE LIMITED, BLACKROCK LIFE LIMITED - DC OVERSEAS EQUITY FUND, BLK MAGI FUND, BMO MSCI EMERGING MARKETS INDEX ETF,
BNYM MELLON CF SL EMERGING MARKETS STOCK INDEX FUND, BRIDGEWATER PURE ALPHA EURO FUND, LTD., BRIDGEWATER PURE ALPHA STERLING FUND, LTD.,
BRIDGEWATER PURE ALPHA TRADING COMPANY II, LTD., BRIDGEWATER PURE ALPHA TRADING COMPANY LTD., BRITISH COLUMBIA INVESTMENT MANAGEMENT CORPORATION,
BRUNEI INVESTMENT AGENCY, BUREAU OF LABOR FUNDS - LABOR INSURANCE FUND, BUREAU OF LABOR FUNDS - LABOR PENSION FUND, BUREAU OF LABOR FUNDS
- LABOR RETIREMENT FUND, CAISSE DE DEPOT ET PLACEMENT DU QUEBEC, CAIXABANK EVOLUCION, FI, CAIXABANK CRECIMIENTO, FI, BOARD OF PENSIONS
OF THE EVANGELICAL LUTHERAN CHURCH IN AMER, CAIXABANK OPORTUNIDAD, FI, CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM, CALIFORNIA STATE
TEACHERS RETIREMENT SYSTEM, CHEVRON UK PENSION PLAN, CANADA</P>


<!-- Field: Page; Sequence: 47 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Gray 1pt solid"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 100%">&nbsp;</TD></TR></TABLE></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; font: 11pt Arial, Helvetica, Sans-Serif; width: 100%"><TR STYLE="vertical-align: top; text-align: left"><TD STYLE="width: 48%"><IMG SRC="sbs202407016k_001.jpg" ALT="">&nbsp;</TD><TD STYLE="width: 4%">&nbsp;</TD><TD STYLE="width: 48%"><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Companhia de Saneamento B&aacute;sico do Estado de S&atilde;o Paulo</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right; text-indent: 1in">CEO&rsquo;s Office</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">R. Costa Carvalho, 300 &ndash; Pinheiros &ndash; CEP 05429-900 &ndash; S&atilde;o Paulo - SP</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Phone: (11) 3388-8000</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">www.sabesp.com.br</P></TD></TR></TABLE></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">PENSION PLAN INVESTMENT BOARD, CANDRIAM GLOBAL EMERGING
MARKETS EQUITIES FUND LP, CHUBB CORPORATION MASTER RETIREMENT TRUST, CIBC EMERGING MARKETS EQUITY INDEX ETF, CITY OF NEW YORK GROUP TRUST,
CITY OF PHILADELPHIA PUB EMPLOYEES RET SYSTEM, CLARITAS BTG PREVIDENCIA FIM, ARROWSTREET CAPITAL COPLEY FUND LIMITED, ABSOLUTE VERTEX
PREV BRADESCO FIFE PREV FIM, CLARITAS INFLACAO INSTITUCIONAL FIM, CLARITAS INSTITUCIONAL MASTER FIM, CLARITAS LONG SHORT MASTER FUNDO
INVESTIMENTO MULTIMERCADO, CLARITAS MACRO PREVIDENCIA FIFE FUNDO DE INVESTIMENTO MULTIM, ISHARES MSCI BRAZIL ETF, CLARITAS PREVIDENCIA
FIFE FUNDO DE INVESTIMENTO MULTIMERCADO, CLARITAS TOTAL RETURN MASTER FIM, CLARITAS VALOR INSTITUCIONAL II FIA, CLARITAS XP LONG BIAS
PREVIDENCIA FIFE FUNDO DE INVESTIMENTO, CLARITAS XP TOTAL RETURN PREVIDENCIA FIFE FUNDO DE INVESTIME, CLARITAS QUANT MASTER II FIA, COLLEGE
RETIREMENT EQUITIES FUND, COLONIAL FIRST STATE INVESTMENT FUND 50, CONSTELLATION 100 PREV FUNDO DE INVESTIMENTO MULTIMERCADO FIFE, CONSTELLATION
70 PREVIDENCIA FUNDO DE INVESTIMENTO PREVIDENCIA MULTIMERCADO, CONSTELLATION BP 100 PREV. <FONT STYLE="font-family: Verdana, Helvetica, Sans-Serif; font-size: 9pt">FIA
FIFE, CONSTELLATION CAMBAR&Aacute; FUNDO DE INVESTIMENTO EM A&Ccedil;&Otilde;ES, CONSTELLATION ICATU 70 PREV FUNDO DE INVESTIMENTO MULTIMERCADO,
CONSTELLATION QUALIFICADO MASTER FUNDO DE INVESTIMENTO DE A&Ccedil;&Otilde;ES, CONSTELLATION SULAMERICA PREV FUNDO DE INVESTIMENTO MULTIMERCADO,
CONSULTING GROUP CAPITAL MKTS FUNDS EMER MARKETS EQUITY FUND, CPPIB MAP CAYMAN SPC, CUSTODY BANK OF JAPAN, LTD. RE: SMTB DAIWA/WELLING,
DESJARDINS GLOBAL BALANCED STRATEGIC INCOME FUND, DEUTSCHE ASSET WEALTH MANAGEMENT INVESTMENT GMBH FOR D GPF, DEUTSCHE INVEST I BRAZILIAN
EQUITIES, DUKE POWER CO EMPLOYEE RETIREMENT PLAN, DWS ADVISORS EMERGING MARKETS EQUITIES-PASSIVE, DWS EMERGING MARKETS EQUITY FUND AS
SERIES OF DEUTSCHE DWS, DWS INVEST ESG GLOBAL EMERGING MARKETS EQUITIES, DWS INVEST LATIN AMERICAN EQUITIES, DWS INVESTMENT GMBH, DWS
LATIN AMERICA EQUITY FUND, EARNEST INSTITUTIONAL LLC, EATON VANCE COLLECTIVE INVESTMENT TFE BEN PLANS EM MQ EQU FD, EMER MKTS CORE EQ
PORT DFA INVEST DIMENS GROU, EMERGING MARKETS COMPLETION FUND, L.P., EMERGING MARKETS EQUITY INDEX ESG SCREENED FUND B, EMERGING MARKETS
INDEX NON-LENDABLE FUND B, EMPLOYEES RET SYSTEM OF THE STATE OF HAWAII, EQUITAS MASTER FIA BDR N&Iacute;VEL I, EQUITAS MASTER SELECTION
FI A&Ccedil;&Otilde;ES, EQUITAS PREV MASTER FI A&Ccedil;&Otilde;ES, EQUITAS PREVID&Ecirc;NCIA FI MULTIMERCADO, EURIZON CAPITAL SGR S.P.A,
EURIZON EMERGING LEADERS ESG 50 - GENNAIO 2027, EURIZON EMERGING LEADERS ESG 50 - LUGLIO 2026, EURIZON EMERGING LEADERS ESG 50 - NOVEMBRE
2026, EURIZON EMERGING LEADERS ESG 50 - SETTEMBRE 2026, EUROPEAN CENTRAL BANK, Envolve Master FIA, EXELON GENERATION COMP, LLC TAX QUALIFIED
NUCLEAR DECOMM PAR, GENERAL PENSION AND SOCIAL SECURITY AUTHORITY, FAROL FUNDO DE INVESTIMENTO EM ACOES, FIDELITY CONCORD STREET TRUST:
FIDELITY ZERO INT. INDEX FUND, FIDELITY GLOBAL EX-U.S. EQUITY INDEX INSTITUTIONAL, FIDELITY SALEM STREET T: FIDELITY G EX U.S INDEX FUND,
FIDELITY SALEM STREET TRUST: FIDELITY INTERNATIONAL SUSTAINA, FIDELITY SALEM STREET TRUST: FIDELITY SAI EMERGING M I FUND, FIDELITY SALEM
STREET TRUST: FIDELITY SERIES G EX US I FD, FIRST TRUST EMERGING MARKETS ALPHADEX FUND, FIRST TRUST EMERGING MARKETS HUMAN FLOURISHING
ETF, FLEXSHARES MORNINGSTAR GLOBAL UPSTREAM RESOURCES INDEX FUND, FLEXSHARES STOXX GLOBAL BOND INFRASTRUCTURE INDEX FUND, FRANKLIN LIBERTYSHARES
ICAV, FRANKLIN TEMPLETON ETF TRUST - FRANKLIN FTSE BRAZI, FRANKLIN TEMPLETON ETF TRUST - FRANKLIN FTSE LATIN, FRG FUNDO DE INVESTIMENTO
EM ACOES CLARITAS, FUNDAMENTAL LOW V I E M EQUITY, FUNDO DE INVESTIMENTO EM A&Ccedil;&Otilde;ES S&Atilde;O CONRADO, FUTURE FUND BOARD
OF GUARDIANS, GAM INVESTMENT MANAGEMENT (SWITZERLAND) AG F Z I I-Z A E M P, GENERAL ORGANISATION FOR SOCIAL INSURANCE, GENOA CAPITAL ARPA
MASTER FUNDO DE INVESTIMENTO EM A&Ccedil;&Otilde;ES, JOHN HANCOCK HEDGED EQUITY INCOME FUND, GODFOND SVERIGE VARLDEN, H.E.S.T. AUSTRALIA
LIMITED, HC CAPITAL TRUST THE EMERGING MARKETS PORTFOLIO, IBM 401 (K) PLUS PLAN, IMCO EMERGING MARKETS PUBLIC EQUITY LP, INVESCO GLOBAL
WATER ETF, INVESTEC GLOBAL STRATEGY FUND, INVESTERINGSFORENINGEN D. I. I. G. E. M. R. - A. KL, INVESTERINGSFORENINGEN NORDEA INVEST EMERGING
MKTS E. KL, ISHARES MSCI ACWI EX U.S. ETF, ISHARES MSCI WATER MANAGEMENT MULTISECTOR ETF, ITA&Uacute; NAVI LONG SHORT PREVID&Ecirc;NCIA
FIM, JOHN HANCOCK TRUST COMPANY COLLECTIVE INVESTMENT T, KBC ECO FUND, MAINSTAY VP EMERGING MARKETS EQUITY PORTFOLIO, JOHN HANCOCK FUNDS
II INTERNATIONAL STRATEGIC EQUITY ALLOCAT, JOHN HANCOCK VARIABLE INS TRUST INTERN EQUITY INDEX TRUST, LATTICE EMERGING MARKETS STRATEGY
ETF, LEGAL &amp; GENERAL COLLECTIVE</FONT></P>


<!-- Field: Page; Sequence: 48 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Gray 1pt solid"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 100%">&nbsp;</TD></TR></TABLE></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; font: 11pt Arial, Helvetica, Sans-Serif; width: 100%"><TR STYLE="vertical-align: top; text-align: left"><TD STYLE="width: 48%"><IMG SRC="sbs202407016k_001.jpg" ALT="">&nbsp;</TD><TD STYLE="width: 4%">&nbsp;</TD><TD STYLE="width: 48%"><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Companhia de Saneamento B&aacute;sico do Estado de S&atilde;o Paulo</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right; text-indent: 1in">CEO&rsquo;s Office</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">R. Costa Carvalho, 300 &ndash; Pinheiros &ndash; CEP 05429-900 &ndash; S&atilde;o Paulo - SP</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Phone: (11) 3388-8000</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">www.sabesp.com.br</P></TD></TR></TABLE></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">INVESTMENT TRUST, ABU DHABI RETIREMENT PENSIONS AND
BENEFITS FUND, LEGAL &amp; GENERAL FUTURE WORLD ESG EMERGING MARKETS, LEGAL &amp; GENERAL GLOBAL EMERGING MARKETS INDEX FUND, LEGAL &amp;
GENERAL GLOBAL EQUITY INDEX FUND, NORTHERN TRUST COLLECTIVE ALL COUNTRY WORLD I (ACWI) E-U F-L, LEGAL AND GENERAL ASSURANCE PENSIONS MNG
LTD, LVIP SSGA EMERGING MARKETS EQUITY INDEX FUND, MACKENZIE MAXIMUM DIVERSIFICATION EMERGING MARKETS INDEX ETF, MAINSTAY CANDRIAM EMERGING
MARKETS EQUITY FUND, MAINSTAY MACKAY INTERNATIONAL OPPORTUNITIES FUND, MANUKA INVESTMENTS LLC, MBB PUBLIC MARKETS I LLC, MERCER EMERGING
MARKETS FUND, TOP 5681 FUNDO DE INVESTIMENTO MULTIMERCADO CREDITO PRIVADO INVESTIMENTO NO EXTERIOR, MULTIPREV FIA, NAVI LONG BIASED MASTER
FIM, NAVI LONG SHORT MASTER FIM, NORDEA GENERATIONSFOND 60-TAL, NORDEA GENERATIONSFOND 90-TAL, NORDEA STABIL, NTGI-QM COMMON DAILY EMERGING
MARKETS EQUITY I F- NON L, PRINCIPAL VARIABLE CONTRACTS FUNDS INC INT EMERG MAR ACCOUNT, REDWHEEL FUNDS - REDWHEEL SUSTAINABLE EMERGING
MAR, RUSSEL INVESTMENTS GLOBAL EQUITY POOL, RUSSELL INVESTMENT COMPANY - RUSSELL I D MARKETS FUND, RUSSELL INVESTMENT COMPANY EMERGING
MARKETS FUND, RUSSELL INVESTMENT COMPANY GLOBAL EQUITY FUND, RUSSELL INVESTMENT COMPANY PUBLIC LIMITED COMPANY, RUSSELL INVESTMENT MANAGEMENT
LTD.AS T OF THE R M-A F E FUND, RUSSELL TR COMPANY COMMINGLED E. B. F. T. R. L. D. I. S., SALT RIVER PIMA-MARICOPA INDIAN C, SANTANDER
SICAV, SCHRODER INTL SELECTION F - LATIN AMERICAN, Silvio Tini de Ara&uacute;jo, SOUTHERN CAL ED C N F Q C DC MT S ON P VD N G, SPDR MSCI
EMERGING MARKETS STRATEGICFACTORS ETF, SPP AKTIEINDEXFOND GLOBAL, STICHTING DEPOSITARY APG EMERGING MARKETS EQUITY POOL, STICHTING PENSIONENFONDS
VAN DE METALEKTRO (PME), STOREBRAND SICAV, THE INCUBATION FUND, LTD., THE MASTER T BK OF JPN, LTD AS T OF NIKKO BR EQ MOTHER FUND, THE
MASTER TR BANK OF JAPAN AS TR FOR HSBC BRAZIL MOTHER FD, THE MASTER TRUST BANK OF JAP., LTD. AS TR. FOR MTBJ400045829, THE MASTER TRUST
BANK OF JAPAN, LTD. AS T F MTBJ400045832, THE MASTER TRUST BANK OF JAPAN, LTD. AS TR FOR MUTB400045792, THE MASTER TRUST BANK OF JAPAN,
LTD. AS TRU FO MTBJ400045849, THE MASTER TRUST BANK OF JAPAN, LTD. TRUSTEE MUTB400045794, THE NOMURA T AND B CO LTD RE I E S INDEX MSCI
E NO HED M FUN, THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, VANGUARD INVESTMENT SERIES PLC, VANGUARD TOTAL INTERNATIONAL STOCK INDEX
FD, A SE VAN S F, MOAT CAPITAL FUNDO DE INVESTIMENTO EM A&Ccedil;&Otilde;ES MASTER, VARIABLE INSURANCE PRODUCTS FUND II: INTERNATIONAL,
VERDIPAPIRFONDET KLP AKSJE FREMVOKSENDE MARKEDER INDEKS I, VERDIPAPIRFONDET STOREBRAND INDEKS ALLE MARKEDER, WELL MGT FUNDS (LUXEMBOURG)
II SICAV - WELL GL M A T R FD, WELLINGTON MANAGEMENT FUNDS (IRELAND) PLC, WELLINGTON MANAGEMENT FUNDS (LUXEMBOURG) III SICAV, JOHN HANCOCK
DIVERSIFIED REAL ASSETS FUND, WISDOMTREE EMERGING MARKETS MULTIFACTOR FUND, WELLINGTON TRUST COMPANY N.A., WELLINGTON TRUST COMPANY, NATIONAL
ASSOCIATION MUL, WELLINGTON TRUST COMPANY, NATIONAL ASSOCIATION MUL, WA PREV IBRX ATIVO ACOES, WA EMPRESARIAL FIA, WILMINGTON TRUST COLLECTIVE
INVESTMENT TRUST - PIO, XTRACKERS MSCI ACWI EX USA ESG LEADERS EQUITY ETF, JOHN HANCOCK INFRASTRUCTURE FUND, MACQUARIE TRUE INDEX EMERGING
MARKETS FUND, KAPITALFORENINGEN LAEGERNES PENSIONSINVESTERING, LPI AEM III, MFS DEVELOPMENT FUNDS, LLC, ABSOLUTE PREVIDENCI&Aacute;RIO
MASTER FIM, MSCI ACWI EX-U.S. IMI INDEX FUND B2, LEGAL &amp; GENERAL INTERNATIONAL INDEX TRUST, MANAGED PENSION FUNDS LIMITED, BEWAARSTICHTING
NNIP I, ASSET MANAGEMENT EXCHANGE UCITS CCF, AUSTRALIANSUPER PTY LTD AS TRUSTEE FOR AUSTRALIASUPER, BLACKROCK A. M. S. AG ON B. OF I.
E. M. E. I. F. (CH), BLACKROCK ASSET MANAG IR LT I ITS CAP A M F T BKR I S FD, DESJARDINS GLOBAL BALANCED GROWTH FUND, DESJARDINS RI EMERGING
MARKETS - LOW CO2 INDEX ETF, EURIZON CAPITAL S.A., FIDELITY INVESTMENT FUNDS FIDELITY INDEX EMERG MARKETS FUND, IN BK FOR REC AND DEV,AS
TR FT ST RET PLAN AND TR/RSBP AN TR, NEW AIRWAYS PENSION SCHEME, NORDEA GENERATIONSFOND 80-TAL, RUSSELL INVESTMENTS INTERNATIONAL SHARES
FUND, SPDR SP EMERGING MARKETS ETF, GENOA CAPITAL PULSE PREV A FIFE FUNDO DE INVESTIMENTO FINANCEIRO MULTIMERCADO &#8211; RESPONSABILIDADE
LIMITADA, GENOA CAPITAL VESTAS MASTER FUNDO DE INVESTIMENTO MULTIMERCADO, LEGACY CAPITAL MASTER FIM, LEGACY CAPITAL ALPHA MASTER FIM,
KBC EQUITY FUND, CIBC EMERGING MARKETS INDEX FUND, CITITRUST LIM AS TR OF BLACK PREMIER FDS- ISH WOR EQU IND FD, CITITRUST LTD A T VANG
FDS S - VANGUARD MODERATE GROWTH FUND, CLARITAS QUANT MASTER FIM, CUSTODY B. OF J. LTD. RE: STB D. E. E. F. I. M. F., CUSTODY BANK OF
JAPAN, LTD. AS TR F HSBC BRAZIL NEW MO FUND, CUSTODY BANK OF JAPAN, LTD. STB BRAZIL STOCK M. F.,</P>


<!-- Field: Page; Sequence: 49 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Gray 1pt solid"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 100%">&nbsp;</TD></TR></TABLE></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; font: 11pt Arial, Helvetica, Sans-Serif; width: 100%"><TR STYLE="vertical-align: top; text-align: left"><TD STYLE="width: 48%"><IMG SRC="sbs202407016k_001.jpg" ALT="">&nbsp;</TD><TD STYLE="width: 4%">&nbsp;</TD><TD STYLE="width: 48%"><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Companhia de Saneamento B&aacute;sico do Estado de S&atilde;o Paulo</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right; text-indent: 1in">CEO&rsquo;s Office</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">R. Costa Carvalho, 300 &ndash; Pinheiros &ndash; CEP 05429-900 &ndash; S&atilde;o Paulo - SP</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">Phone: (11) 3388-8000</P><P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0 0.55pt 0 0; text-align: right">www.sabesp.com.br</P></TD></TR></TABLE></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">ACTIVE M INTERNATIONAL EQUITY FUND, ASCENSION ALPHA
FUND, LLC, DEUTSCHE ASSET MANAGEMENT S.A. FOR ARERO - DER WEL, DEUTSCHE X-TRACKERS MSCI ALL WORLD EX US HEDGED EQUITY ETF, DIMENSIONAL
EMERGING CORE EQUITY MARKET ETF OF DIM, DFC EMERGING MARKETS EQUITY FUND</P>

<P STYLE="font: 9pt Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 9pt/150% Verdana, Helvetica, Sans-Serif; margin: 0; text-align: justify">&nbsp;</P>



<P STYLE="font: 11pt Arial, Helvetica, Sans-Serif; margin: 0 0 12pt 0.5pt; text-align: justify"></P>

<!-- Field: Page; Sequence: 50; Options: NewSection -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Gray 1pt solid"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 100%">&nbsp;</TD></TR></TABLE></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt">&nbsp;</DIV>
    <!-- Field: /Page -->



<P></P>

<DIV align=center><FONT color=#000000 size=3 face="Times New Roman"><B><U></U></B></FONT>

<DIV align=center><FONT color=#000000 size=3 face="Times New Roman"><B><U>SIGNATURE&nbsp;</U></B></FONT><FONT size=1>&nbsp;</FONT></DIV>

<DIV><FONT size=1></FONT>&nbsp;</DIV>

<DIV align=justify><FONT color=#000000 size=3 face="Times New Roman">Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized, in the city S&#227;o Paulo, Brazil. <BR></FONT></DIV>

<DIV align=justify><FONT color=#000000 size=3 face="Times New Roman">Date:&nbsp;July 1, 2024</FONT></DIV>

<DIV><FONT size=1></FONT>&nbsp;</DIV>

<DIV align=center>

<TABLE style="WIDTH: 70%" cellSpacing=0 cellPadding=0>



<TR>

   <TD vAlign=top width="50%" colSpan=3>

   <DIV align=left><FONT color=#000000 size=3 face="Times New Roman"><B>Companhia de Saneamento B&#225;sico do Estado de S&#227;o Paulo - SABESP </B></FONT></DIV></TD></TR>

<TR>

   <TD height=16></TD>

   <TD height=16></TD>

   <TD height=16></TD></TR>

<TR>

   <TD vAlign=top align=left><FONT color=#000000 size=2 face="Times New Roman">By:</FONT></TD>

   <TD vAlign=bottom align=left>/s/&nbsp;&nbsp;<FONT style="FONT-FAMILY: times new roman" size=3>Catia Cristina Teixeira Pereira</FONT>&nbsp;&nbsp;&nbsp;&nbsp;

   <HR align=left color=#000000 SIZE=1 noShade>

</TD>

   <TD></TD></TR>

<TR>

   <TD><FONT size=1>&nbsp;</FONT></TD>

   <TD vAlign=bottom width="53%" align=center>

   <DIV align=left><FONT color=#000000 size=2 face="Times New Roman">Name: Catia Cristina Teixeira Pereira </FONT></DIV>

   <DIV align=left><FONT color=#000000 size=2 face="Times New Roman">Title: Chief Financial Officer and Investor Relations Officer </FONT></DIV></TD>

   <TD></TD></TR></TABLE></DIV>

<DIV><FONT size=1></FONT>&nbsp;</DIV>

<P>&nbsp;</P>

<DIV><FONT size=1></FONT>&nbsp;</DIV>

<DIV align=center><FONT color=#000000 size=3 face="Times New Roman"><B>FORWARD-LOOKING STATEMENTS </B></FONT></DIV>

<P align=justify><FONT size=2 face="'Times New Roman, Times, Serif'">This press release may contain forward-looking statements. These statements are statements that are not historical facts, and are based on management's current view and estimates of future economic circumstances, industry conditions, company performance and financial results. The words "anticipates", "believes", "estimates", "expects", "plans" and similar expressions, as they relate to the company, are intended to identify forward-looking statements. Statements regarding the declaration or payment of dividends, the implementation of principal operating and financing strategies and capital expenditure plans, the direction of future operations and the factors or trends affecting financial condition, liquidity or results of operations are examples of forward-looking statements. Such statements reflect the current views of management and are subject to a number of risks and uncertainties. There is no guarantee that the expected events, trends or results will actually occur. The statements are based on many assumptions and factors, including general economic and market conditions, industry conditions, and operating factors. Any changes in such assumptions or factors could cause actual results to differ materially from current expectations. </FONT></P>

<HR align=left color=#000000 SIZE=2 noShade>

</DIV>

<P></P>

</BODY>

</HTML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>sbs202407016k_001.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
begin 644 sbs202407016k_001.jpg
M_]C_X  02D9)1@ ! 0$ 8 !@  #_VP!#  @&!@<&!0@'!P<)"0@*#!0-# L+
M#!D2$P\4'1H?'AT:'!P@)"XG("(L(QP<*#<I+# Q-#0T'R<Y/3@R/"XS-#+_
MVP!# 0@)"0P+#!@-#1@R(1PA,C(R,C(R,C(R,C(R,C(R,C(R,C(R,C(R,C(R
M,C(R,C(R,C(R,C(R,C(R,C(R,C(R,C+_P  1" != $L# 2(  A$! Q$!_\0
M'P   04! 0$! 0$           $" P0%!@<("0H+_\0 M1   @$# P($ P4%
M! 0   %] 0(#  01!1(A,4$&$U%A!R)Q%#*!D:$((T*QP152T? D,V)R@@D*
M%A<8&1HE)B<H*2HT-38W.#DZ0T1%1D=(24I35%565UA96F-D969G:&EJ<W1U
M=G=X>7J#A(6&AXB)BI*3E)66EYB9FJ*CI*6FIZBIJK*SM+6VM[BYNL+#Q,7&
MQ\C)RM+3U-76U]C9VN'BX^3EYN?HZ>KQ\O/T]?;W^/GZ_\0 'P$  P$! 0$!
M 0$! 0        $" P0%!@<("0H+_\0 M1$  @$"! 0#! <%! 0  0)W  $"
M Q$$!2$Q!A)!40=A<1,B,H$(%$*1H;'!"2,S4O 58G+1"A8D-.$E\1<8&1HF
M)R@I*C4V-S@Y.D-$149'2$E*4U155E=865IC9&5F9VAI:G-T=79W>'EZ@H.$
MA8:'B(F*DI.4E9:7F)F:HJ.DI::GJ*FJLK.TM;:WN+FZPL/$Q<;'R,G*TM/4
MU=;7V-G:XN/DY>;GZ.GJ\O/T]?;W^/GZ_]H # ,!  (1 Q$ /P#W^BBO,_\
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+3S5F@ HHHH __]D!

end
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
