<SEC-DOCUMENT>0001292814-22-001203.txt : 20220329
<SEC-HEADER>0001292814-22-001203.hdr.sgml : 20220329
<ACCEPTANCE-DATETIME>20220328180842
ACCESSION NUMBER:		0001292814-22-001203
CONFORMED SUBMISSION TYPE:	6-K
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20220331
FILED AS OF DATE:		20220329
DATE AS OF CHANGE:		20220328

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]
		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:		22776724

	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>sbs20220324_6k.htm
<DESCRIPTION>6-K
<TEXT>
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<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>

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<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;March, 2022</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>

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<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>

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<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>

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<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>


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<P STYLE="font: 11pt Arial, Helvetica, Sans-Serif; margin: 0 0 12pt 0.5pt; text-align: justify">&nbsp;<IMG SRC="sbs202203246k_001.jpg" ALT=""></P>
<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0 6pt; text-align: center">&nbsp;</P>

<P STYLE="font: 9pt Verdana,sans-serif; margin: 0 7.05pt 0 7.1pt; text-align: center"><B>COMPANHIA DE SANEAMENTO B&Aacute;SICO DO ESTADO
DE S&Atilde;O PAULO &ndash; SABESP</B></P>

<P STYLE="font: 9pt Verdana,sans-serif; margin: 0 7.05pt 0 7.1pt; text-align: center">PUBLICLY HELD COMPANY</P>

<P STYLE="font: 9pt Verdana,sans-serif; margin: 0 7.05pt 0 7.1pt; text-align: center">Corporate Taxpayer&rsquo;s ID (CNPJ): 43.776.517/0001-80</P>

<P STYLE="font: 9pt Verdana,sans-serif; margin: 0 7.05pt 0 7.1pt; text-align: center">Company Registry (NIRE): 35.3000.1683-1</P>

<P STYLE="font: 9pt/150% Verdana,sans-serif; margin: 0 7.05pt 0 7.1pt; text-align: center">&nbsp;</P>

<P STYLE="font: 9pt/150% Verdana,sans-serif; margin: 0 7.05pt 0 7.1pt; text-align: center"><B>CALL NOTICE</B></P>

<P STYLE="font: 9pt/150% Verdana,sans-serif; margin: 0 7.05pt 0 7.1pt; text-align: center">&nbsp;</P>

<P STYLE="font: 9pt/150% Verdana,sans-serif; margin: 0 7.05pt 0 7.1pt; text-align: justify">Companhia de Saneamento B&aacute;sico do Estado
de S&atilde;o Paulo - Sabesp (&ldquo;<U>Company</U>&rdquo;), located at Rua Costa Carvalho, n&ordm; 300, in the City and State of S&atilde;o
Paulo, hereby invites its Shareholders, according to paragraph 1 of article 5 of its Bylaws, to participate in the Company&rsquo;s <B>Annual
and Extraordinary Shareholders&rsquo; Meetings </B>(&ldquo;<U>AESM</U>&rdquo; or &ldquo;<U>Meetings</U>&rdquo;), to be held on <B>April
28, 2022, at 11:00 am, in an exclusively digital format</B>, through the Zoom Meetings platform, according to CVM Instruction 481, of
December 17, 2009, as amended by CVM Instruction 622, of April 17, 2020 (&ldquo;<U>CVM Instruction 481</U>&rdquo;), to resolve on the
following agenda:</P>

<P STYLE="font: 9pt/150% Verdana,sans-serif; margin: 0 7.05pt 0 7.1pt; text-align: justify">&nbsp;</P>

<P STYLE="font: 9pt/150% Verdana,sans-serif; margin: 0 7.05pt 0 7.1pt; text-align: center"><B>ANNUAL SHAREHOLDERS&rsquo; MEETING</B></P>

<P STYLE="font: 9pt/150% Verdana,sans-serif; margin: 0 7.05pt 0 7.1pt; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/150% Calibri,sans-serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 14.25pt"></TD><TD STYLE="width: 14.15pt"><FONT STYLE="font-family: Verdana,sans-serif; font-size: 9pt"><B>I.</B></FONT></TD><TD STYLE="text-align: justify; padding-right: 7.05pt"><FONT STYLE="font-family: Verdana,sans-serif; font-size: 9pt">Examine the management
accounts, discuss, and vote on the Company&rsquo;s financial statements for the fiscal year ended December 31, 2021, accompanied by the
Annual Management Report, Independent Auditors&rsquo; Report, Fiscal Council&rsquo;s Opinion, and Summarized Annual Report of the Audit
Committee. </FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/150% Calibri,sans-serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 14.25pt"></TD><TD STYLE="width: 14.15pt"><FONT STYLE="font-family: Verdana,sans-serif; font-size: 9pt"><B>II.</B></FONT></TD><TD STYLE="text-align: justify; padding-right: 7.05pt"><FONT STYLE="font-family: Verdana,sans-serif; font-size: 9pt">Resolve on the allocation
of the net income for the fiscal year ended December 31, 2021, and the distribution of dividends.</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/150% Calibri,sans-serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 14.25pt"></TD><TD STYLE="width: 14.15pt"><FONT STYLE="font-family: Verdana,sans-serif; font-size: 9pt"><B>III.</B></FONT></TD><TD STYLE="text-align: justify; padding-right: 7.05pt"><FONT STYLE="font-family: Verdana,sans-serif; font-size: 9pt">Set the number of
members to compose the Board of Directors for a term of office until the 2024 Annual Shareholders&rsquo; Meeting.</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/150% Calibri,sans-serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 14.25pt"></TD><TD STYLE="width: 14.15pt"><FONT STYLE="font-family: Verdana,sans-serif; font-size: 9pt"><B>IV.</B></FONT></TD><TD STYLE="text-align: justify; padding-right: 7.05pt"><FONT STYLE="font-family: Verdana,sans-serif; font-size: 9pt">Elect the members
of the Board of Directors for a term of office until the 2024 Annual Shareholders&rsquo; Meeting and appoint the Chairman of the Board
of Directors. </FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/150% Calibri,sans-serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 14.25pt"></TD><TD STYLE="width: 14.15pt"><FONT STYLE="font-family: Verdana,sans-serif; font-size: 9pt"><B>V.</B></FONT></TD><TD STYLE="text-align: justify; padding-right: 7.05pt"><FONT STYLE="font-family: Verdana,sans-serif; font-size: 9pt">Set the number of
members to compose the Fiscal Council for a term of office until the 2023 Annual Shareholders&rsquo; Meeting.</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/150% Calibri,sans-serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 14.25pt"></TD><TD STYLE="width: 14.15pt"><FONT STYLE="font-family: Verdana,sans-serif; font-size: 9pt"><B>VI.</B></FONT></TD><TD STYLE="text-align: justify; padding-right: 7.05pt"><FONT STYLE="font-family: Verdana,sans-serif; font-size: 9pt">Elect the members
of the Fiscal Council for a term of office until the 2023 Annual Shareholders&rsquo; Meeting. </FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/150% Calibri,sans-serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 14.25pt"></TD><TD STYLE="width: 14.15pt"><FONT STYLE="font-family: Verdana,sans-serif; font-size: 9pt"><B>VII.</B></FONT></TD><TD STYLE="text-align: justify; padding-right: 7.05pt"><FONT STYLE="font-family: Verdana,sans-serif; font-size: 9pt">Establish the overall
annual compensation of the Company&rsquo;s Management and members of the Audit Committee and Fiscal Council for the 2022 fiscal year.</FONT></TD></TR></TABLE>

<P STYLE="font: 9pt Verdana,sans-serif; margin: 0 0 0 36pt">&nbsp;</P>

<P STYLE="font: 9pt Verdana,sans-serif; margin: 0 0 0 36pt">&nbsp;</P>

<P STYLE="font: 9pt/150% Verdana,sans-serif; margin: 0 7.05pt 0 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 9pt/150% Verdana,sans-serif; margin: 0 7.05pt 0 7.1pt; text-align: center"><B>EXTRAORDINARY SHAREHOLDERS' MEETING</B></P>

<P STYLE="font: 9pt/150% Verdana,sans-serif; margin: 0 7.05pt 0 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/150% Calibri,sans-serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 14.25pt"></TD><TD STYLE="width: 14.15pt"><FONT STYLE="font-family: Verdana,sans-serif; font-size: 9pt"><B>I.</B></FONT></TD><TD STYLE="text-align: justify; padding-right: 7.05pt"><FONT STYLE="font-family: Verdana,sans-serif; font-size: 9pt">Appoint the members
of the Audit Committee.</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/150% Calibri,sans-serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 14.25pt"></TD><TD STYLE="width: 14.15pt"><FONT STYLE="font-family: Verdana,sans-serif; font-size: 9pt"><B>II.</B></FONT></TD><TD STYLE="text-align: justify; padding-right: 7.05pt"><FONT STYLE="font-family: Verdana,sans-serif; font-size: 9pt">Amend the Company&rsquo;s
Bylaws to implement the following changes: (a) change paragraph two of article 9 to emphasize compliance with Federal Law 13,303/2016,
(b) change item XXII of article 14 to update the value of the transactions that shall be submitted to the Board of Directors, (c)</FONT></TD></TR></TABLE>


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<P STYLE="font: 11pt Arial, Helvetica, Sans-Serif; margin: 0 0 12pt 0.5pt; text-align: justify">&nbsp;<IMG SRC="sbs202203246k_001.jpg" ALT=""></P>
<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0 6pt; text-align: center">&nbsp;</P>
<P STYLE="font: 11pt/150% Calibri,sans-serif; margin: 0 7.05pt 0 1cm; text-align: justify">change article 20 to reorganize specific authorities
of the Executive Board by (c.1) excluding subitems &ldquo;d&rdquo; and &ldquo;g&rdquo; of item X of paragraph two, (c.2) transferring
the provisions of items &ldquo;d&rdquo; and &ldquo;g&rdquo; of item of X paragraph two to items VIII and IX of paragraph four, and (c.3)
excluding the wording previously in effect of item VIII.</P>

<P STYLE="font: 9pt Verdana,sans-serif; margin: 0 0 0 36pt">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/150% Calibri,sans-serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 10.4pt"></TD><TD STYLE="width: 18pt"><FONT STYLE="font-family: Verdana,sans-serif; font-size: 9pt"><B>III.</B></FONT></TD><TD STYLE="text-align: justify; padding-right: 7.05pt"><FONT STYLE="font-family: Verdana,sans-serif; font-size: 9pt">Consolidate the Company&rsquo;s
Bylaws.</FONT></TD></TR></TABLE>

<P STYLE="font: bold 9pt/150% Verdana,sans-serif; margin: 6pt 0 0; text-align: justify"><I>Information to the Shareholders:</I></P>

<P STYLE="font: bold 9pt/150% Verdana,sans-serif; margin: 6pt 0 0; text-align: justify"><FONT STYLE="font-weight: normal">The Meetings
will be held exclusively online, according to CVM Instruction 481, and Shareholders are allowed to participate </FONT>(i) <FONT STYLE="font-weight: normal">in
person or by a proxy, through the electronic platform at the time defined for the AESM, or </FONT>(ii) <FONT STYLE="font-weight: normal">by
sending a voting instruction before the AESM, through a Remote Voting Form.</FONT></P>

<P STYLE="font: bold 9pt/150% Verdana,sans-serif; margin: 6pt 0 0; text-align: justify">The rules and procedures for shareholders&rsquo;
participation in the General Meetings are detailed in the Manual to Participate in the Meeting, and the information about the matters
to be resolved at the Meetings are detailed in the Management Proposal (Portuguese only), both of which are available on the Company&rsquo;s
Investor Relations website (<FONT STYLE="color: Blue"><U>https://ri.sabesp.com.br/</U></FONT>), and on the websites of B3 (www.b3.com.br)
and the Brazilian Securities and Exchange Commission (<FONT STYLE="color: Blue"><U>https://www.gov.br/cvm/pt-br</U></FONT>).</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: bold 13pt/150% Times New Roman,serif; margin-top: 6pt; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 25.1pt"></TD><TD STYLE="width: 18pt"><FONT STYLE="font-family: Verdana,sans-serif; font-size: 9pt">I.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Verdana,sans-serif; font-size: 9pt">Participation through the electronic platform</FONT></TD></TR></TABLE>

<P STYLE="font: bold 9pt/150% Verdana,sans-serif; margin: 6pt 0 0; text-align: justify"><FONT STYLE="font-weight: normal">Shareholders
who wish to participate in the Meetings via the digital platform made available by the Company shall send the documents necessary for
participation, as described in the Manual to Participate in the Meeting, </FONT><U>until 11:00 a.m. of April 26, 2022,</U> <FONT STYLE="font-weight: normal">to
the Company&rsquo;s headquarters, at Rua Costa Carvalho, n&ordm; 300, in the City and State of S&atilde;o Paulo, or email them to sabesp.ri@sabesp.com.br,
to the care of the Investor Relations Department (<I>Superintend&ecirc;ncia de Capta&ccedil;&atilde;o de Recursos e Rela&ccedil;&otilde;es
com Investidores</I>).</FONT></P>

<P STYLE="font: 9pt/150% Verdana,sans-serif; margin: 6pt 0 0; text-align: justify"><FONT STYLE="font-weight: normal">It should be noted
that the personal data and documents requested for accreditation and participation in the Meetings will be used exclusively for this purpose
according to article 7, item II, of Law 13,709/2018 (compliance with legal obligation), based on Brazilian Corporation Law and correlating
regulations.</FONT></P>

<P STYLE="font: 9pt/150% Verdana,sans-serif; margin: 6pt 0 0; text-align: justify"><FONT STYLE="font-weight: normal">After analyzing the
documents, the Company will email Shareholders with the access link to the AESM, including specific access instructions. The access to
the AESM will be restricted to Shareholders and/or their representatives or proxies accredited within the term defined by the Company,
who will receive an individual invitation with specific instructions to access the digital platform.</FONT></P>

<P STYLE="font: bold 9pt/150% Verdana,sans-serif; margin: 6pt 0 0 25.1pt; text-align: justify">II. Participation through Remote Voting
Form</P>

<P STYLE="font: bold 9pt/150% Verdana,sans-serif; margin: 6pt 0 0; text-align: justify"><FONT STYLE="font-weight: normal">If Shareholders
decide to participate in the AESM through a remote voting form, they must </FONT>(a) <FONT STYLE="font-weight: normal">send filling instructions
of the Remote Voting Form to service providers for the collection and transmission of instructions for filling out these documents (custody
agents or bookkeeping agent of the shares issued by the Company), provided that such instructions are received within up to seven (7)
days before the Meetings; or </FONT>(b) <FONT STYLE="font-weight: normal">send the Remote Voting Form directly to the Company, </FONT><U>provided
that the instructions are received within seven (7) days before the AESM</U><FONT STYLE="font-weight: normal">, and any Remote Voting
Forms received by the</FONT></P>


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<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0 6pt; text-align: center">&nbsp;</P>
<P STYLE="font: 9pt/150% Verdana,sans-serif; margin: 6pt 0 0; text-align: justify">Company after this deadline will be disregarded.
The submission of the Remote Voting Form to the custodian agent shall comply with the applicable rules and procedures indicated by them,
while the <U>Remote Voting Forms directly sent to the Company shall be accompanied by the documents indicated in the Manual for Participation
in the Meeting</U> and addressed to the Company&rsquo;s headquarters, at Rua Costa Carvalho, n&ordm; 300, in the City and State of S&atilde;o
Paulo, or emailed to sabesp.ri@sabesp.com.br, to the care of the Investor Relations Department (<I>Superintend&ecirc;ncia de Capta&ccedil;&atilde;o
de Recursos e Rela&ccedil;&otilde;es com Investidores</I>).</P>

<P STYLE="font: 9pt/150% Verdana,sans-serif; margin: 6pt 0 0; text-align: justify"><FONT STYLE="font-weight: normal">Shareholders who
send their Remote Voting Forms may participate in the Meetings via the digital system. However, should they exercise their voting right
at the respective Meeting, their Remote Voting Forms will be fully disregarded and the votes cast at the Meeting will be considered valid.</FONT></P>

<P STYLE="font: bold 9pt/150% Verdana,sans-serif; margin: 6pt 0 0 25.1pt; text-align: justify">III. Requests for a Multiple Vote</P>

<P STYLE="font: 9pt/150% Verdana,sans-serif; margin: 6pt 0 0; text-align: justify"><FONT STYLE="font-weight: normal">To request the adoption
of a multiple vote for the election of the Board of Directors&rsquo; members, according to CVM Instruction 165, of December 11, 1991,
as amended, the applicants must represent at least 5% of the Company&rsquo;s voting capital and may exercise this option up to 48 hours
before the Meetings. </FONT></P>

<P STYLE="font: 9pt/150% Verdana,sans-serif; margin: 6pt 0 0; text-align: justify"><FONT STYLE="font-weight: normal">The Company emphasizes
the importance that any requests for a multiple vote be made in advance, to facilitate their processing by the Company and the participation
of other Brazilian and foreign Shareholders. </FONT></P>

<P STYLE="font: 9pt/150% Verdana,sans-serif; margin: 6pt 0 0; text-align: justify"><FONT STYLE="font-weight: normal">The other rules
and procedures for shareholder participation in the Meetings are detailed in the <U>Manual to Participate in the Meeting</U>, available
on the Company&rsquo;s Investor Relations website (<FONT STYLE="color: Blue"><U>https://ri.sabesp.com.br</U></FONT>) and the website
of the Brazilian Securities and Exchange Commission (&ldquo;CVM&rdquo;) (<FONT STYLE="color: Blue"><U>www.cvm.gov.br</U></FONT>). </FONT></P>

<P STYLE="font: 9pt/150% Verdana,sans-serif; margin: 6pt 0 0; text-align: justify"><FONT STYLE="font-weight: normal">&nbsp;</FONT></P>

<P STYLE="font: 9pt/150% Verdana,sans-serif; margin: 12pt 7.1pt 0 0; text-align: center">S&atilde;o Paulo, March 24, 2022.</P>

<P STYLE="font: 9pt Verdana,sans-serif; margin: 6pt 7.1pt 0 0; text-align: center">Mario Engler Pinto Junior</P>

<P STYLE="font: 9pt Verdana,sans-serif; margin: 6pt 7.1pt 0 0; text-align: center">Chairman of the Board of Directors</P>



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

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<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;March 24, 2022</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>Osvaldo Garcia</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: Osvaldo Garcia </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>

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