<SEC-DOCUMENT>0001292814-21-004640.txt : 20211201
<SEC-HEADER>0001292814-21-004640.hdr.sgml : 20211201
<ACCEPTANCE-DATETIME>20211201082159
ACCESSION NUMBER:		0001292814-21-004640
CONFORMED SUBMISSION TYPE:	6-K
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20210930
FILED AS OF DATE:		20211201
DATE AS OF CHANGE:		20211201

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:		211461494

	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>sbsitr3q21_6k.htm
<DESCRIPTION>SBSITR3Q21_6K
<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><FONT color=#000000 size=2 face="Times New Roman"><B>For&nbsp;November, 2021</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: 12pt Times New Roman, Times, Serif; margin: 0 0 6pt; text-align: center"></P>

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

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

<P STYLE="font: 14pt Times New Roman, Times, Serif; margin: 3.9pt 0 0 7.35pt"><B>Table of Contents</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0"><B>&nbsp;</B></P>

<P STYLE="font: 9.5pt Georgia, Times, Serif; margin: 0.15pt 0 0">&nbsp;</P>

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<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; width: 100%">
<TR STYLE="vertical-align: top; text-align: left">
  <TD COLSPAN="2" STYLE="border-bottom: Black 1pt dashed"><P STYLE="font: 11pt Arial, Helvetica, Sans-Serif; margin: 6.75pt 0 0 7.35pt"><B>Company Information</B></P>
</TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
  <TD STYLE="border-bottom: Black 1pt dashed; width: 90%"><P STYLE="font: 9pt Arial MT; margin: 10.75pt 0 0 17.35pt">Capital
Breakdown&#9;</P></TD>
  <TD STYLE="border-bottom: Black 1pt dashed; width: 10%"><P STYLE="font: 9pt Arial MT; text-align: right; margin-right: 0; margin-bottom: 0">1</P></TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
  <TD COLSPAN="2" STYLE="border-bottom: Black 1pt dashed"><P STYLE="font: bold 11pt Arial, Helvetica, Sans-Serif; margin: 10.85pt 0 0 7.35pt">Parent
Company&#8217;s Financial Statements</P>
</TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
  <TD STYLE="border-bottom: Black 1pt dashed"><P STYLE="font: 9pt Arial MT; margin: 10.75pt 0 0 17.35pt">Statement
of Financial Position &#8211; Assets&#9;</P></TD>
  <TD STYLE="border-bottom: Black 1pt dashed; font: 9pt Arial MT; text-align: right; margin-right: 0; margin-bottom: 0"><P STYLE="font: 9pt Arial MT; margin: 10.75pt 0 0 17.35pt">2</P></TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
  <TD STYLE="border-bottom: Black 1pt dashed"><P STYLE="font: 9pt Arial MT; margin: 10.85pt 0 0 17.35pt">Statement
of Financial Position &#8211; Liabilities&#9;</P></TD>
  <TD STYLE="border-bottom: Black 1pt dashed; font: 9pt Arial MT; text-align: right; margin-right: 0; margin-bottom: 0"><P STYLE="font: 9pt Arial MT; margin: 10.85pt 0 0 17.35pt">3</P></TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
  <TD STYLE="border-bottom: Black 1pt dashed"><P STYLE="font: 9pt Arial MT; margin: 11pt 0 0 17.35pt">Income
Statement&#9;</P></TD>
  <TD STYLE="border-bottom: Black 1pt dashed; font: 9pt Arial MT; text-align: right; margin-right: 0; margin-bottom: 0"><P STYLE="font: 9pt Arial MT; margin: 11pt 0 0 17.35pt">5</P></TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
  <TD STYLE="border-bottom: Black 1pt dashed"><P STYLE="font: 9pt Arial MT; margin: 10.9pt 0 0 17.35pt">Statement
of Comprehensive Income&#9;</P></TD>
  <TD STYLE="border-bottom: Black 1pt dashed; font: 9pt Arial MT; text-align: right; margin-right: 0; margin-bottom: 0"><P STYLE="font: 9pt Arial MT; margin: 10.9pt 0 0 17.35pt">7</P></TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
  <TD STYLE="border-bottom: Black 1pt dashed"><P STYLE="font: 9pt Arial MT; margin: 10.85pt 0 0 17.35pt">Statement
of Cash Flows (Indirect Method)&#9;</P></TD>
  <TD STYLE="border-bottom: Black 1pt dashed; font: 9pt Arial MT; text-align: right; margin-right: 0; margin-bottom: 0"><P STYLE="font: 9pt Arial MT; margin: 10.85pt 0 0 17.35pt">8</P></TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
  <TD COLSPAN="2" STYLE="border-bottom: Black 1pt dashed"><P STYLE="font: bold 9pt Arial, Helvetica, Sans-Serif; margin: 10.9pt 0 0 17.35pt">Statement
of Changes in Equity</P>
</TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
  <TD STYLE="border-bottom: Black 1pt dashed"><P STYLE="font: 9pt Arial MT; margin: 10.95pt 0 0 27.35pt">1/01/2021
to 9/30/2021&#9;</P></TD>
  <TD STYLE="border-bottom: Black 1pt dashed"><P STYLE="font: 9pt Arial MT; text-align: right; margin-right: 0; margin-bottom: 0">10</P></TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
  <TD STYLE="border-bottom: Black 1pt dashed"><P STYLE="font: 9pt Arial MT; margin: 10.9pt 0 0 27.35pt">1/01/2020
to 9/30/2020&#9;</P></TD>
  <TD STYLE="border-bottom: Black 1pt dashed"><P STYLE="font: 9pt Arial MT; text-align: right; margin-right: 0; margin-bottom: 0">11</P></TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
  <TD STYLE="border-bottom: Black 1pt dashed"><P STYLE="font: 9pt Arial MT; margin: 10.9pt 0 0 17.35pt">Statement
of Value Added&#9;</P></TD>
  <TD STYLE="border-bottom: Black 1pt dashed"><P STYLE="font: 9pt Arial MT; text-align: right; margin-right: 0; margin-bottom: 0">12</P></TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
  <TD STYLE="border-bottom: Black 1pt dashed"><P STYLE="font: 9pt Arial MT; margin: 10.9pt 0 0 7.35pt">Comments
on the Company&#8217;s Performance&#9;</P></TD>
  <TD STYLE="border-bottom: Black 1pt dashed"><P STYLE="font: 9pt Arial MT; text-align: right; margin-right: 0; margin-bottom: 0">13</P></TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
  <TD STYLE="border-bottom: Black 1pt dashed"><P STYLE="font: 9pt Arial MT; margin: 10.95pt 0 0 7.35pt">Notes
to the Quarterly Information&#9;</P></TD>
  <TD STYLE="border-bottom: Black 1pt dashed"><P STYLE="font: 9pt Arial MT; text-align: right; margin-right: 0; margin-bottom: 0">23</P></TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
  <TD STYLE="border-bottom: Black 1pt dashed"><P STYLE="font: 9pt Arial MT; margin: 10.9pt 0 0 7.35pt">Comments
on the Company&#8217;s Projections</P></TD>
  <TD STYLE="border-bottom: Black 1pt dashed"><P STYLE="font: 9pt Arial MT; text-align: right; margin-right: 0; margin-bottom: 0">82</P></TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
  <TD STYLE="border-bottom: Black 1pt dashed"><P STYLE="font: 9pt Arial MT; margin: 10.9pt 0 0 7.35pt">Other
Information Deemed as Relevant by the Company&#9;</P></TD>
  <TD STYLE="border-bottom: Black 1pt dashed"><P STYLE="font: 9pt Arial MT; text-align: right; margin-right: 0; margin-bottom: 0">83</P></TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
  <TD COLSPAN="2" STYLE="border-bottom: Black 1pt dashed"><P STYLE="font: bold 11pt Arial, Helvetica, Sans-Serif; margin: 10.9pt 0 0 7.35pt">Reports
and Statements</P>
</TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
  <TD STYLE="border-bottom: Black 1pt dashed"><P STYLE="font: 9pt Arial MT; margin: 10.75pt 0 0 17.35pt">Unqualified
Reports on Special Review&#9;</P></TD>
  <TD STYLE="border-bottom: Black 1pt dashed"><P STYLE="font: 9pt Arial MT; text-align: right; margin-right: 0; margin-bottom: 0">85</P></TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
  <TD STYLE="border-bottom: Black 1pt dashed"><P STYLE="font: 9pt Arial MT; margin: 10.85pt 0 0 17.35pt">Executive
Officers&#8217; Statement on the Financial Statements&#9;</P></TD>
  <TD STYLE="border-bottom: Black 1pt dashed"><P STYLE="font: 9pt Arial MT; text-align: right; margin-right: 0; margin-bottom: 0">86</P></TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
  <TD STYLE="border-bottom: Black 1pt dashed"><P STYLE="font: 9pt Arial MT; margin: 10.85pt 0 0 17.35pt">Executive Officers&#8217; Statement on the Report of Independent Registered Public Accounting Firm&#9;</P></TD>
  <TD STYLE="border-bottom: Black 1pt dashed"><P STYLE="text-align: right; font: 9pt Arial MT; margin-right: 0; margin-bottom: 0">87</P></TD></TR>
</TABLE>

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<P STYLE="font: 12pt Times New Roman, Times, Serif; margin-right: 0; margin-left: 0">&nbsp;</P>

<P STYLE="font: 9pt Arial MT; margin: 10.9pt 0 0 17.35pt">&nbsp;</P>

<P STYLE="margin: 0"></P>

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<P STYLE="font: bold 12pt Arial, Helvetica, Sans-Serif; margin: 4.1pt 0 0 7.35pt">Company Information / Capital Breakdown</P>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 0"><B>&nbsp;</B></P>

<P STYLE="font: 7pt Arial, Helvetica, Sans-Serif; margin: 0.45pt 0 0"><B>&nbsp;</B></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 11pt Georgia, Times, Serif; border-collapse: collapse">
  <TR STYLE="vertical-align: top; background-color: #D2D2D2">
    <TD STYLE="width: 27%; padding-top: 3.7pt; padding-left: 2pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Number of shares</B></FONT></TD>
    <TD STYLE="width: 73%; padding-top: 3.7pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Current Quarter</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top; background-color: #D2D2D2">
    <TD STYLE="padding-left: 2pt; line-height: 10.05pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>(Unit)</B></FONT></TD>
    <TD STYLE="text-align: right; line-height: 10.05pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>9/30/2021</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top; background-color: gainsboro">
    <TD STYLE="padding-top: 3.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>Paid-in Capital</B></FONT></TD>
    <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>Common</B></FONT></TD>
    <TD STYLE="padding-top: 1.75pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">683,509,869</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: darkgray 1pt solid; padding-top: 2.35pt; padding-left: 2pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>Preferred</B></FONT></TD>
    <TD STYLE="border-bottom: darkgray 1pt solid; padding-top: 2.35pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">0</FONT></TD></TR>
  <TR STYLE="vertical-align: top; background-color: whitesmoke">
    <TD STYLE="padding-top: 1.25pt; padding-left: 2pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>Total</B></FONT></TD>
    <TD STYLE="padding-top: 1.25pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">683,509,869</FONT></TD></TR>
  <TR STYLE="vertical-align: top; background-color: gainsboro">
    <TD STYLE="padding-top: 3.7pt; padding-left: 2pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>Treasury Shares</B></FONT></TD>
    <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>Common</B></FONT></TD>
    <TD STYLE="padding-top: 1.75pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">0</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: darkgray 1pt solid; padding-top: 2.35pt; padding-left: 2pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>Preferred</B></FONT></TD>
    <TD STYLE="border-bottom: darkgray 1pt solid; padding-top: 2.35pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">0</FONT></TD></TR>
  <TR STYLE="vertical-align: top; background-color: whitesmoke">
    <TD STYLE="padding-top: 1.3pt; padding-left: 2pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>Total</B></FONT></TD>
    <TD STYLE="padding-top: 1.3pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">0</FONT></TD></TR>
  </TABLE>

<P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P>

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<P STYLE="font: 12pt/193% Arial, Helvetica, Sans-Serif; margin-top: 4.1pt; margin-bottom: 0; margin-left: 7.35pt"><B>Parent Company&rsquo;s Financial Statements
/ Statement of Financial Position &ndash; Assets (R$ thousand)</B></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 11pt Georgia, Times, Serif; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 10%; padding-left: 2pt; line-height: 9.05pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Code</B></FONT></TD>
    <TD STYLE="width: 50%; padding-left: 2.25pt; line-height: 9.05pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Description</B></FONT></TD>
    <TD STYLE="width: 22%; padding-right: 20.65pt; text-align: right; line-height: 9.05pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Current Quarter</B></FONT></TD>
    <TD STYLE="width: 18%; padding-right: 1.85pt; text-align: right; line-height: 9.05pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Previous Year</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: black 1pt solid; padding-left: 2pt; line-height: 10.05pt">&nbsp;</TD>
    <TD STYLE="border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-right: 20.65pt; text-align: right; line-height: 10.05pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>9/30/2021</B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-right: 1.9pt; text-align: right; line-height: 10.05pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>12/31/2020</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.2pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1</FONT></TD>
    <TD STYLE="padding-top: 1.2pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Total Assets</FONT></TD>
    <TD STYLE="padding-top: 1.2pt; padding-right: 20.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">53,076,356</FONT></TD>
    <TD STYLE="padding-top: 1.2pt; padding-right: 1.9pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">50,418,636</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1.01</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Current Assets</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">7,061,474</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.85pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6,440,838</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1.01.01</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Cash and Cash Equivalents</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2,402,028</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.85pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">396,401</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.7pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1.01.02</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Financial Investments</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 20.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1,745,617</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 1.85pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">3,411,146</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1.01.02.03</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Financial Investments Valued at Amortized Cost</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1,745,617</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.85pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">3,411,146</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1.01.03</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Accounts Receivable</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2,653,730</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.85pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2,372,083</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1.01.03.01</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Trade Receivables</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2,453,684</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.85pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2,204,029</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1.01.03.02</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Other Receivables</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">200,046</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.85pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">168,054</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1.01.03.02.01</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Related-Party Balances</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">200,046</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.85pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">168,054</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1.01.04</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Inventories</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">105,974</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.85pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">104,848</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.7pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1.01.06</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Recoverable Taxes</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">43,856</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 1.85pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">22,672</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1.01.06.01</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Current Recoverable Taxes</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">43,856</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.85pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">22,672</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1.01.08</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Other Current Assets</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">110,269</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.85pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">133,688</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1.01.08.03</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Other</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">110,269</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.85pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">133,688</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1.01.08.03.01</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Restricted Cash</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">26,832</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.85pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">35,742</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1.01.08.03.20</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Other Assets</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">83,437</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.85pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">97,946</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1.02</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Noncurrent Assets</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">46,014,882</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.9pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">43,977,798</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.7pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1.02.01</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Long-Term Assets</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 20.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">10,023,484</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 1.85pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">9,194,281</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1.02.01.04</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Accounts Receivable</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">304,770</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.85pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">246,957</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1.02.01.04.01</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Trade Receivables</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">304,770</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.85pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">246,957</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1.02.01.09</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Receivables from Related Parties</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">639,796</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.85pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">638,591</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1.02.01.09.03</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Receivables from Controlling Shareholders</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">639,796</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.85pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">638,591</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1.02.01.10</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Other Noncurrent Assets</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">9,078,918</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.85pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">8,308,733</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.7pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1.02.01.10.04</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Escrow Deposits</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 20.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">146,166</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 1.85pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">164,942</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1.02.01.10.05</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Water National Agency &ndash; ANA</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">21,093</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.85pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">26,463</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1.02.01.10.06</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Contract Asset </FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">8,746,933</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.85pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">7,969,164</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1.02.01.10.20</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Other Assets</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">164,726</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.85pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">148,164</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1.02.02</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Investments</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">125,381</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.85pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">109,691</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1.02.02.01</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Equity Interest</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">79,243</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.85pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">63,417</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1.02.02.01.03</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Equity Interest in Jointly-Owned Subsidiaries</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">73,144</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.85pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">57,318</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.7pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1.02.02.01.04</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Other Investments</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 20.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6,099</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 1.85pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6,099</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1.02.02.02</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Investment Properties</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">46,138</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.85pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">46,274</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1.02.03</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Property, Plant and Equipment</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">276,973</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.85pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">268,251</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1.02.04</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Intangible Assets</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">35,589,044</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.9pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">34,405,575</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1.02.04.01</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Intangible Assets</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">35,589,044</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.9pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">34,405,575</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1.02.04.01.01</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Concession Agreements</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1,177,042</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.85pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1,218,440</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1.02.04.01.02</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Program Contracts</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">17,987,058</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.9pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">17,731,230</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.7pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1.02.04.01.03</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Service Contracts</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 20.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">15,784,609</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 1.9pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">14,872,604</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1.02.04.01.04</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Software License of Use</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">536,013</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.85pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">540,625</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1.02.04.01.05</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Right of Use</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.65pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">104,322</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.85pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">42,676</FONT></TD></TR>
  </TABLE>

<P STYLE="font: 11pt/193% Georgia, Times, Serif; margin: 4.1pt 81.55pt 0 7.35pt">&nbsp;</P>

<P STYLE="margin: 0">&nbsp;</P>


<!-- Field: Page; Sequence: 4 -->
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    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 85%"><P STYLE="text-align: left; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">ITR - Quarterly Information Form - 9/30/2021 - CIA SANEAMENTO BASICO EST SAO PAULO</P></TD><TD STYLE="text-align: center; width: 15%"><P STYLE="text-align: right; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">Version : 1</P></TD></TR></TABLE><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P></DIV>
    <!-- Field: /Page -->



<P STYLE="margin: 0">&nbsp;</P>

<P STYLE="font: bold 12pt/193% Arial, Helvetica, Sans-Serif; margin-top: 4.1pt; margin-bottom: 0; margin-left: 7.35pt">Parent Company&rsquo;s Financial Statements
/ Statement of Financial Position &ndash; Liabilities (R$ thousand)</P>

<P STYLE="margin: 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 11pt Georgia, Times, Serif; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 10%; padding-left: 2pt; line-height: 9.05pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Code</B></FONT></TD>
    <TD STYLE="width: 50%; padding-left: 2.25pt; line-height: 9.05pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Description</B></FONT></TD>
    <TD STYLE="width: 22%; padding-right: 20.6pt; text-align: right; line-height: 9.05pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Current Quarter</B></FONT></TD>
    <TD STYLE="width: 18%; padding-right: 1.8pt; text-align: right; line-height: 9.05pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Previous Year</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: black 1pt solid; padding-left: 2pt; line-height: 10.05pt">&nbsp;</TD>
    <TD STYLE="border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-right: 20.6pt; text-align: right; line-height: 10.05pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>9/30/2021</B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-right: 1.85pt; text-align: right; line-height: 10.05pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>12/31/2020</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.2pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2</FONT></TD>
    <TD STYLE="padding-top: 1.2pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Total Liabilities</FONT></TD>
    <TD STYLE="padding-top: 1.2pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">53,076,356</FONT></TD>
    <TD STYLE="padding-top: 1.2pt; padding-right: 1.85pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">50,418,636</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.01</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Current Liabilities</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6,137,903</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">5,900,130</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.01.01</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Labor Liabilities and Pension Plan Obligations</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">477,250</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">410,943</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.7pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.01.01.01</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Pension Plan Obligations</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 20.55pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">29,445</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 1.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">48,198</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.01.01.02</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Labor Liabilities</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">447,805</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">362,745</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.01.02</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Trade Payables</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">257,195</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">263,741</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.01.02.01</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">National Suppliers</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">257,195</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">263,741</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.01.03</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Tax Liabilities</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">262,241</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">266,819</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.01.03.01</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Federal Tax Liabilities</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">255,840</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">258,902</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.01.03.01.01</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Income Tax and Social Contribution Payable</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.55pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">60,231</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">69,041</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.7pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.01.03.01.02</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Pis-Pasep and Cofins Payable</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">118,756</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 1.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">93,601</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.01.03.01.03</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">INSS (Social Security Contribution) Payable</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.55pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">38,712</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">37,599</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.01.03.01.20</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Other Federal Taxes</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.55pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">38,141</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">58,661</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.01.03.03</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Municipal Tax Liabilities</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6,401</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">7,917</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.01.04</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Borrowings and Financing</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">3,281,186</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">3,034,449</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.01.04.01</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Borrowings and Financing</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1,131,182</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1,016,356</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.01.04.01.01</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">In Local Currency</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">785,647</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">656,712</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.7pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.01.04.01.02</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">In Foreign Currency</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">345,535</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 1.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">359,644</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.01.04.02</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Debentures</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2,049,490</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1,952,670</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.01.04.03</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Financing through Lease</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">100,514</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">65,423</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.01.05</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Other Liabilities</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1,058,976</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1,163,969</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.01.05.01</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Payables to Related Parties</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">626</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.85pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">626</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.01.05.01.03</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Payables to Controlling Shareholders</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">626</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.85pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">626</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.7pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.01.05.02</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Other</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1,058,350</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 1.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1,163,343</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.01.05.02.01</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Dividends and Interest on Capital Payable</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">500</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">231,611</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.01.05.02.04</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Services Payable</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">529,210</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">453,750</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.01.05.02.05</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Refundable Amounts</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.55pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">32,481</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">40,514</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.01.05.02.06</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Program Contract Commitments</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">136,023</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">162,541</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.01.05.02.07</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Public-Private Partnership (PPP)</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">133,581</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">130,207</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.01.05.02.09</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Indemnities</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">3,802</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">8,969</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.7pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.01.05.02.20</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Other Liabilities</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">222,753</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 1.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">135,751</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.01.06</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Provisions</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">801,055</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">760,209</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.01.06.01</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Tax, Social Security, Labor and Civil Provisions</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">213,284</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">187,193</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.01.06.01.01</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Tax Provisions</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.55pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">27,848</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">26,281</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.01.06.01.02</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Labor Liabilities and Pension Plan Obligations</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">103,353</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">88,475</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.01.06.01.04</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Civil Provisions</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.55pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">82,083</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">72,437</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.01.06.02</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Other Provisions</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">587,771</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">573,016</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.7pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.01.06.02.03</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Provisions for Environmental Liabilities and Decommissioning</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 20.55pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">18,727</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 1.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">26,299</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.01.06.02.04</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Provisions for Customers</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">149,914</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">140,093</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.01.06.02.05</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Provisions for Suppliers</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">419,130</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">406,624</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.02</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Noncurrent Liabilities</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">22,432,684</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.85pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">21,724,802</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.02.01</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Borrowings and Financing</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">14,636,474</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.85pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">14,224,175</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.02.01.01</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Borrowings and Financing</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">8,734,527</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">9,136,552</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.7pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.02.01.01.01</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">In Local Currency</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">5,837,557</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 1.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">5,948,334</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.02.01.01.02</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">In Foreign Currency</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2,896,970</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">3,188,218</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.02.01.02</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Debentures</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.6pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">5,473,130</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.8pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">4,678,427</FONT></TD></TR>
  </TABLE>

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<P STYLE="margin: 0"></P>


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<P STYLE="font: 12pt/193% Arial, Helvetica, Sans-Serif; margin-top: 4.1pt; margin-bottom: 0; margin-left: 7.35pt"><B>Parent Company&rsquo;s Financial Statements
/ Statement of Financial Position &ndash; Liabilities (R$ thousand)</B></P>

<P STYLE="margin: 0">&nbsp;</P>

<P STYLE="margin: 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 11pt Georgia, Times, Serif; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 10%; padding-left: 2pt; line-height: 9.05pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Code</B></FONT></TD>
    <TD STYLE="width: 50%; padding-left: 2.25pt; line-height: 9.05pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Description</B></FONT></TD>
    <TD STYLE="width: 22%; padding-right: 20.6pt; text-align: right; line-height: 9.05pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Current Quarter</B></FONT></TD>
    <TD STYLE="width: 18%; padding-right: 1.75pt; text-align: right; line-height: 9.05pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Previous Year</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: black 1pt solid; padding-left: 2pt; line-height: 10.05pt">&nbsp;</TD>
    <TD STYLE="border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-right: 20.6pt; text-align: right; line-height: 10.05pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>9/30/2021</B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-right: 1.8pt; text-align: right; line-height: 10.05pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>12/31/2020</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.2pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.02.01.03</FONT></TD>
    <TD STYLE="padding-top: 1.2pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Financing through Lease</FONT></TD>
    <TD STYLE="padding-top: 1.2pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">428,817</FONT></TD>
    <TD STYLE="padding-top: 1.2pt; padding-right: 1.75pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">409,196</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.02.02</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Other Liabilities</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6,970,457</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.75pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6,687,818</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.02.02.02</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Other</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6,970,457</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.75pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6,687,818</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.7pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.02.02.02.04</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Pension Plan Obligations</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2,850,791</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 1.75pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2,868,594</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.02.02.02.05</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Program Contract Commitments</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.55pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">42,930</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.75pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">68,939</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.02.02.02.06</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Public-Private Partnership (PPP)</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2,952,006</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.75pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">3,045,066</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.02.02.02.07</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Indemnities</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.55pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">22,642</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.75pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">27,765</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.02.02.02.08</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Labor Liabilities</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1,860</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.75pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1,007</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.02.02.02.09</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Deferred Cofins/Pasep</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">153,256</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.75pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">149,444</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.02.02.02.20</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Other Liabilities</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">946,972</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.75pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">527,003</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.7pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.02.03</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Deferred Taxes</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">267,659</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 1.75pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">320,716</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.02.03.01</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Deferred Income Tax and Social Contribution</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">267,659</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.75pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">320,716</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.02.03.01.01</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Deferred Income Tax and Social Contribution</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">267,659</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.75pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">320,716</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.02.04</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Provisions</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">558,094</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.75pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">492,093</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.02.04.01</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Tax, Social Security, Labor and Civil Provisions</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">269,677</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.75pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">255,030</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.02.04.01.01</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Tax Provisions</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.55pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">27,732</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.75pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">30,987</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.02.04.01.02</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Labor Liabilities and Pension Plan Obligations</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">235,446</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.75pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">212,902</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.7pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.02.04.01.04</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Civil Provisions</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6,499</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 1.75pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">11,141</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.02.04.02</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Other Provisions</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">288,417</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.75pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">237,063</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.02.04.02.03</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Provisions for Environmental Liabilities and Decommissioning</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">283,562</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.75pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">223,252</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.02.04.02.04</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Provisions for Customers</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">4,172</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.75pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">10,059</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.02.04.02.05</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Provisions for Suppliers</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">683</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.75pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">3,752</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.03</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Equity</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">24,505,769</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">22,793,704</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.7pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.03.01</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Paid-Up Capital</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">15,000,000</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 1.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">15,000,000</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.03.04</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Profit Reserves</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">8,168,330</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.75pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">8,194,706</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.03.04.01</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Legal Reserve</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1,417,072</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.75pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1,417,072</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.03.04.08</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Additional Dividend Proposed</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.7pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">0</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.75pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">26,376</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.03.04.10</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Reserve for Investments</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6,751,258</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.75pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6,751,258</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.03.05</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Retained Earnings/Accumulated Losses</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1,738,441</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">0</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.03.06</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 2.25pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Equity Valuation Adjustments</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 20.55pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-401,002</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.7pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-401,002</FONT></TD></TR>
  </TABLE>

<P STYLE="margin: 0">&nbsp;</P>

<P STYLE="margin: 0">&nbsp;</P>



<!-- Field: Page; Sequence: 6 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: right; width: 100%">Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->4<!-- Field: /Sequence --> of 87&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: 85%"><P STYLE="text-align: left; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">ITR - Quarterly Information Form - 9/30/2021 - CIA SANEAMENTO BASICO EST SAO PAULO</P></TD><TD STYLE="text-align: center; width: 15%"><P STYLE="text-align: right; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">Version : 1</P></TD></TR></TABLE><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P></DIV>
    <!-- Field: /Page -->


<P STYLE="margin: 0">&nbsp;</P>

<P STYLE="font: bold 12pt/193% Arial, Helvetica, Sans-Serif; margin-top: 4.1pt; margin-bottom: 0; margin-left: 7.35pt">Parent Company&rsquo;s Financial Statements
/ Income Statement (R$ thousand)</P>

<P STYLE="margin: 0">&nbsp;</P>

<P STYLE="margin: 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 11pt Georgia, Times, Serif; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 6%; padding-left: 2pt; line-height: 7.95pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>Code</B></FONT></TD>
    <TD STYLE="width: 37%; padding-left: 8.2pt; line-height: 7.95pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>Description</B></FONT></TD>
    <TD STYLE="width: 20%; padding-right: 8.1pt; text-align: right; line-height: 7.95pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>Current Quarter</B></FONT></TD>
    <TD STYLE="width: 13%; padding-right: 10.3pt; text-align: right; line-height: 7.95pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>YTD Current</B></FONT></TD>
    <TD STYLE="width: 12%; padding-right: 6.85pt; text-align: right; line-height: 7.95pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>Same Quarter</B></FONT></TD>
    <TD STYLE="width: 12%; padding-right: 3.65pt; text-align: right; line-height: 7.95pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>YTD Previous</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-left: 2pt; line-height: 8pt">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD STYLE="padding-right: 8.1pt; text-align: right; line-height: 8pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>7/01/2021 to 9/30/2021</B></FONT></TD>
    <TD STYLE="padding-right: 8.05pt; text-align: right; line-height: 8pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>Year</B></FONT></TD>
    <TD STYLE="padding-right: 4.65pt; text-align: right; line-height: 8pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>Previous Year</B></FONT></TD>
    <TD STYLE="padding-right: 1.45pt; text-align: right; line-height: 8pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>Year</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-right: 8.05pt; text-align: right; line-height: 8.95pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>1/01/2021 to 9/30/2021</B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-right: 4.65pt; text-align: right; line-height: 8.95pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>7/01/2020 to 9/30/2020</B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-right: 1.45pt; text-align: right; line-height: 8.95pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>1/01/2020 to 9/30/2020</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.25pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">3.01</FONT></TD>
    <TD STYLE="padding-top: 1.25pt; padding-left: 8.2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Revenue from Sales and/or Services</FONT></TD>
    <TD STYLE="padding-top: 1.25pt; padding-right: 8.1pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">5,153,917</FONT></TD>
    <TD STYLE="padding-top: 1.25pt; padding-right: 8.05pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">14,427,253</FONT></TD>
    <TD STYLE="padding-top: 1.25pt; padding-right: 4.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">4,438,480</FONT></TD>
    <TD STYLE="padding-top: 1.25pt; padding-right: 1.45pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">12,913,376</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 2.35pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">3.02</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-left: 8.2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Cost of Sales and/or Services</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 8.1pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-3,324,800</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 8.05pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-9,436,270</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 4.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-2,942,490</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 1.45pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-8,183,402</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 2.35pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">3.02.01</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-left: 8.2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Cost of Sales and/or Services</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 8.1pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-2,165,337</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 8.05pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-6,276,603</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 4.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-1,912,742</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 1.45pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-5,648,213</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 2.3pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">3.02.02</FONT></TD>
    <TD STYLE="padding-top: 2.3pt; padding-left: 8.2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Construction Costs</FONT></TD>
    <TD STYLE="padding-top: 2.3pt; padding-right: 8.1pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-1,159,463</FONT></TD>
    <TD STYLE="padding-top: 2.3pt; padding-right: 8.05pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-3,159,667</FONT></TD>
    <TD STYLE="padding-top: 2.3pt; padding-right: 4.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-1,029,748</FONT></TD>
    <TD STYLE="padding-top: 2.3pt; padding-right: 1.45pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-2,535,189</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 2.35pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">3.03</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-left: 8.2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Gross Profit</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 8.1pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">1,829,117</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 8.05pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">4,990,983</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 4.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">1,495,990</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 1.45pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">4,729,974</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 2.35pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">3.04</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-left: 8.2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Operating Income/Expenses</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 8.15pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-602,016</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 8.05pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-1,759,679</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 4.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-509,792</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 1.45pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-1,548,189</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 2.35pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">3.04.01</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-left: 8.2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Selling Expenses</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 8.15pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-315,841</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 8.1pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-975,448</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 4.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-269,543</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 1.5pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-917,702</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 2.35pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">3.04.01.01</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-left: 8.2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Selling Expenses</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 8.15pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-197,282</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 8.1pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-591,737</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 4.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-194,418</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 1.5pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-567,911</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 2.35pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">3.04.01.02</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-left: 8.2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Allowance for Doubtful Accounts</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 8.15pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-118,559</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 8.1pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-383,711</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 4.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-75,125</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 1.5pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-349,791</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 2.35pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">3.04.02</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-left: 8.2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">General and Administrative Expenses</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 8.15pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-292,855</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 8.1pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-812,904</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 4.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-244,215</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 1.5pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-753,370</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 2.3pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">3.04.04</FONT></TD>
    <TD STYLE="padding-top: 2.3pt; padding-left: 8.2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Other Operating Income</FONT></TD>
    <TD STYLE="padding-top: 2.3pt; padding-right: 8.1pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">19,717</FONT></TD>
    <TD STYLE="padding-top: 2.3pt; padding-right: 8.1pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">39,467</FONT></TD>
    <TD STYLE="padding-top: 2.3pt; padding-right: 4.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">17,393</FONT></TD>
    <TD STYLE="padding-top: 2.3pt; padding-right: 1.45pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">58,048</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 2.35pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">3.04.04.01</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-left: 8.2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Other Operating Income</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 8.1pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">26,422</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 8.1pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">54,357</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 4.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">19,168</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 1.45pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">64,027</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 2.35pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">3.04.04.02</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-left: 8.2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Cofins and Pasep</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 8.1pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-6,705</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 8.1pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-14,890</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 4.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-1,775</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 1.45pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-5,979</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 2.35pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">3.04.05</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-left: 8.2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Other Operating Expenses</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 8.1pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-17,031</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 8.1pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-27,003</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 4.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-16,551</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 1.45pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">55,231</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 2.35pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">3.04.06</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-left: 8.2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Equity Result</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 8.1pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">3,994</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 8.1pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">16,209</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 4.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">3,124</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 1.45pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">9,604</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 2.35pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">3.05</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-left: 8.2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Income before Financial Result and Taxes</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 8.1pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">1,227,101</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 8.05pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">3,231,304</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 4.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">986,198</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 1.45pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">3,181,785</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 2.35pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">3.06</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-left: 8.2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Financial Result</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 8.15pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-520,624</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 8.1pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-626,181</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 4.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-330,639</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 1.45pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-2,986,392</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 2.3pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">3.06.01</FONT></TD>
    <TD STYLE="padding-top: 2.3pt; padding-left: 8.2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Financial Income</FONT></TD>
    <TD STYLE="padding-top: 2.3pt; padding-right: 8.15pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">138,217</FONT></TD>
    <TD STYLE="padding-top: 2.3pt; padding-right: 8.1pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">343,226</FONT></TD>
    <TD STYLE="padding-top: 2.3pt; padding-right: 4.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">65,703</FONT></TD>
    <TD STYLE="padding-top: 2.3pt; padding-right: 1.5pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">235,427</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 2.35pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">3.06.01.01</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-left: 8.2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Financial Income</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 8.15pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">144,572</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 8.1pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">360,006</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 4.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">73,521</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 1.5pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">250,093</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 2.35pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">3.06.01.02</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-left: 8.2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Exchange Gains</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 8.1pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">697</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 8.05pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">290</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 4.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">967</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 1.45pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">2,595</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 2.35pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">3.06.01.03</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-left: 8.2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Cofins and Pasep</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 8.1pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-7,052</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 8.1pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-17,070</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 4.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-8,785</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 1.45pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-17,261</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 2.35pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">3.06.02</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-left: 8.2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Financial&nbsp;&nbsp;Expenses</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 8.15pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-658,841</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 8.1pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-969,407</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 4.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-396,342</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 1.45pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-3,221,819</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 2.35pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">3.06.02.01</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-left: 8.2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Financial&nbsp;&nbsp;Expenses</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 8.15pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-406,155</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 8.05pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-1,021,458</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 4.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-285,283</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 1.5pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-812,186</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 2.3pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">3.06.02.02</FONT></TD>
    <TD STYLE="padding-top: 2.3pt; padding-left: 8.2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Exchange Losses</FONT></TD>
    <TD STYLE="padding-top: 2.3pt; padding-right: 8.15pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-252,686</FONT></TD>
    <TD STYLE="padding-top: 2.3pt; padding-right: 8.1pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">52,051</FONT></TD>
    <TD STYLE="padding-top: 2.3pt; padding-right: 4.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-111,059</FONT></TD>
    <TD STYLE="padding-top: 2.3pt; padding-right: 1.45pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-2,409,633</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 2.35pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">3.07</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-left: 8.2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Earnings before Income Taxes</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 8.15pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">706,477</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 8.05pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">2,605,123</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 4.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">655,559</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 1.5pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">195,393</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 2.35pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">3.08</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-left: 8.2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Income Tax and Social Contribution</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 8.15pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-237,946</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 8.1pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-866,682</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 4.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-233,983</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 1.45pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-53,603</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 2.35pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">3.08.01</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-left: 8.2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Current</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 8.15pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-262,037</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 8.1pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-919,739</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 4.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-192,985</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 1.45pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-67,612</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 2.35pt; padding-left: 2pt; line-height: 8.2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">3.08.02</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-left: 8.2pt; line-height: 8.2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Deferred</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 8.1pt; text-align: right; line-height: 8.2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">24,091</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 8.1pt; text-align: right; line-height: 8.2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">53,057</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 4.65pt; text-align: right; line-height: 8.2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-40,998</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 1.45pt; text-align: right; line-height: 8.2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">14,009</FONT></TD></TR>
  </TABLE>

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<!-- Field: Page; Sequence: 7 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: right; width: 100%">Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->5<!-- Field: /Sequence --> of 87&nbsp;</TD></TR></TABLE></DIV>
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<P STYLE="font: 12pt/193% Arial, Helvetica, Sans-Serif; margin-top: 4.1pt; margin-bottom: 0; margin-left: 7.35pt"><B>Parent Company&rsquo;s Financial Statements
/ Income Statement (R$ thousand)</B></P>

<P STYLE="margin: 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 11pt Georgia, Times, Serif; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 6%; padding-left: 2pt; line-height: 7.95pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>Code</B></FONT></TD>
    <TD STYLE="width: 35%; padding-left: 8.2pt; line-height: 7.95pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>Description</B></FONT></TD>
    <TD STYLE="width: 22%; padding-right: 8.2pt; text-align: right; line-height: 7.95pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>Current Quarter</B></FONT></TD>
    <TD STYLE="width: 13%; padding-right: 10.5pt; text-align: right; line-height: 7.95pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>YTD Current</B></FONT></TD>
    <TD STYLE="width: 12%; padding-right: 7.15pt; text-align: right; line-height: 7.95pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>Same Quarter</B></FONT></TD>
    <TD STYLE="width: 12%; padding-right: 4.1pt; text-align: right; line-height: 7.95pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>YTD Previous</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-left: 2pt; line-height: 8pt">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD STYLE="padding-right: 8.2pt; text-align: right; line-height: 8pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>7/01/2021 to 9/30/2021</B></FONT></TD>
    <TD STYLE="padding-right: 8.25pt; text-align: right; line-height: 8pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>Year</B></FONT></TD>
    <TD STYLE="padding-right: 4.95pt; text-align: right; line-height: 8pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>Previous Year</B></FONT></TD>
    <TD STYLE="padding-right: 1.9pt; text-align: right; line-height: 8pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>Year</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-right: 8.25pt; text-align: right; line-height: 8.95pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>1/01/2021 to 9/30/2021</B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-right: 4.95pt; text-align: right; line-height: 8.95pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>7/01/2020 to 9/30/2020</B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-right: 1.9pt; text-align: right; line-height: 8.95pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>1/01/2020 to 9/30/2020</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.25pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">3.09</FONT></TD>
    <TD STYLE="padding-top: 1.25pt; padding-left: 8.2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Net Result from Continued Operations</FONT></TD>
    <TD STYLE="padding-top: 1.25pt; padding-right: 8.25pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">468,531</FONT></TD>
    <TD STYLE="padding-top: 1.25pt; padding-right: 8.25pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">1,738,441</FONT></TD>
    <TD STYLE="padding-top: 1.25pt; padding-right: 4.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">421,576</FONT></TD>
    <TD STYLE="padding-top: 1.25pt; padding-right: 1.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">141,790</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 2.35pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">3.11</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-left: 8.2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Profit/Loss for the Period</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 8.25pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">468,531</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 8.25pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">1,738,441</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 4.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">421,576</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 1.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">141,790</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 2.35pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">3.99</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-left: 8.2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Earnings per Share - (Reais/Share)</FONT></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 2.3pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">3.99.01</FONT></TD>
    <TD STYLE="padding-top: 2.3pt; padding-left: 8.2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Basic Earnings per Share</FONT></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 2.35pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">3.99.01.01</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-left: 8.2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Common </FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 8.25pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">0.68548</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 8.3pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">2.54341</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 4.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">0.61678</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 1.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">0.20744</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 2.35pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">3.99.02</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-left: 8.2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Diluted Earnings per Share</FONT></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 2.35pt; padding-left: 2pt; line-height: 8.2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">3.99.02.01</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-left: 8.2pt; line-height: 8.2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Common </FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 8.25pt; text-align: right; line-height: 8.2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">0.68548</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 8.3pt; text-align: right; line-height: 8.2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">2.54341</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 4.95pt; text-align: right; line-height: 8.2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">0.61678</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 1.95pt; text-align: right; line-height: 8.2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">0.20744</FONT></TD></TR>
  </TABLE>

<P STYLE="margin: 0">&nbsp;</P>

<P STYLE="margin: 0">&nbsp;</P>


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<P STYLE="margin: 0">&nbsp;</P>

<P STYLE="margin: 0">&nbsp;</P>

<P STYLE="font: bold 12pt/193% Arial, Helvetica, Sans-Serif; margin-top: 4.1pt; margin-bottom: 0; margin-left: 7.35pt">Parent Company&rsquo;s Financial Statements
/ Statement of Comprehensive Income (R$ thousand)</P>

<P STYLE="margin: 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 11pt Georgia, Times, Serif; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 6%; padding-left: 2pt; line-height: 7.95pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>Code</B></FONT></TD>
    <TD STYLE="width: 32%; padding-left: 8.2pt; line-height: 7.95pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>Description</B></FONT></TD>
    <TD STYLE="width: 25%; padding-right: 8.1pt; text-align: right; line-height: 7.95pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>Current Quarter</B></FONT></TD>
    <TD STYLE="width: 13%; padding-right: 10.35pt; text-align: right; line-height: 7.95pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>YTD Current</B></FONT></TD>
    <TD STYLE="width: 12%; padding-right: 6.95pt; text-align: right; line-height: 7.95pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>Same Quarter</B></FONT></TD>
    <TD STYLE="width: 12%; padding-right: 3.85pt; text-align: right; line-height: 7.95pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>YTD Previous</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-left: 2pt; line-height: 8pt">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD STYLE="padding-right: 8.1pt; text-align: right; line-height: 8pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>7/01/2021 to 9/30/2021</B></FONT></TD>
    <TD STYLE="padding-right: 8.1pt; text-align: right; line-height: 8pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>Year</B></FONT></TD>
    <TD STYLE="padding-right: 4.75pt; text-align: right; line-height: 8pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>Previous Year</B></FONT></TD>
    <TD STYLE="padding-right: 1.65pt; text-align: right; line-height: 8pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>Year</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-right: 8.1pt; text-align: right; line-height: 8.95pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>1/01/2021 to 9/30/2021</B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-right: 4.75pt; text-align: right; line-height: 8.95pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>7/01/2020 to 9/30/2020</B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-right: 1.65pt; text-align: right; line-height: 8.95pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>1/01/2020 to 9/30/2020</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.25pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">4.01</FONT></TD>
    <TD STYLE="padding-top: 1.25pt; padding-left: 8.2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Net Income for the Period</FONT></TD>
    <TD STYLE="padding-top: 1.25pt; padding-right: 8.15pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">468,531</FONT></TD>
    <TD STYLE="padding-top: 1.25pt; padding-right: 8.1pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">1,738,441</FONT></TD>
    <TD STYLE="padding-top: 1.25pt; padding-right: 4.75pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">421,576</FONT></TD>
    <TD STYLE="padding-top: 1.25pt; padding-right: 1.7pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">141,790</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 2.35pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">4.02</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-left: 8.2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Other Comprehensive Income</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 8.15pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">0</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 8.15pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">0</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 4.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">17</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 1.7pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">17</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 2.35pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">4.02.20</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-left: 8.2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Other</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 8.15pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">0</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 8.15pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">0</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 4.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">17</FONT></TD>
    <TD STYLE="padding-top: 2.35pt; padding-right: 1.7pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">17</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 2.3pt; padding-left: 2pt; line-height: 8.2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">4.03</FONT></TD>
    <TD STYLE="padding-top: 2.3pt; padding-left: 8.2pt; line-height: 8.2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Comprehensive Income for the Period</FONT></TD>
    <TD STYLE="padding-top: 2.3pt; padding-right: 8.15pt; text-align: right; line-height: 8.2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">468,531</FONT></TD>
    <TD STYLE="padding-top: 2.3pt; padding-right: 8.1pt; text-align: right; line-height: 8.2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">1,738,441</FONT></TD>
    <TD STYLE="padding-top: 2.3pt; padding-right: 4.75pt; text-align: right; line-height: 8.2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">421,593</FONT></TD>
    <TD STYLE="padding-top: 2.3pt; padding-right: 1.7pt; text-align: right; line-height: 8.2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">141,807</FONT></TD></TR>
  </TABLE>

<P STYLE="margin: 0">&nbsp;</P>

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<P STYLE="margin: 0">&nbsp;</P>

<P STYLE="font: 12pt/193% Arial, Helvetica, Sans-Serif; margin-top: 4.1pt; margin-bottom: 0; margin-left: 7.35pt"><B>Parent Company&rsquo;s Financial Statements
/ Statement of Cash Flows &ndash; Indirect Method (R$ thousand)</B></P>

<P STYLE="margin: 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 11pt Georgia, Times, Serif; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 9%; padding-right: 6.8pt; padding-left: 2pt; line-height: 10pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Code</B></FONT></TD>
    <TD STYLE="width: 49%; padding-left: 7.75pt; line-height: 10.05pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Description</B></FONT></TD>
    <TD STYLE="width: 21%">
    <P STYLE="font: 9pt/9.9pt Arial, Helvetica, Sans-Serif; margin: 0 8.25pt 0 0; text-align: right"><B>YTD Current</B></P>
    <P STYLE="font: 9pt/9.15pt Arial, Helvetica, Sans-Serif; margin: 0 5.75pt 0 0; text-align: right"><B>Year</B></P></TD>
    <TD STYLE="width: 21%">
    <P STYLE="font: 9pt/9.9pt Arial, Helvetica, Sans-Serif; margin: 0 4.4pt 0 0; text-align: right"><B>YTD Previous</B></P>
    <P STYLE="font: 9pt/9.15pt Arial, Helvetica, Sans-Serif; margin: 0 1.95pt 0 0; text-align: right"><B>Year</B></P></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-right: 5.75pt; text-align: right; line-height: 10.05pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>1/01/2021 to 9/30/2021</B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-right: 2pt; text-align: right; line-height: 10.05pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>1/01/2020 to 9/30/2020</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.2pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6.01</FONT></TD>
    <TD STYLE="padding-top: 1.2pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Net Cash from Operating Activities</FONT></TD>
    <TD STYLE="padding-top: 1.2pt; padding-right: 5.75pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">3,247,848</FONT></TD>
    <TD STYLE="padding-top: 1.2pt; padding-right: 1.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">3,887,710</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6.01.01</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Cash from Operations</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.75pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">5,669,046</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">5,079,627</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6.01.01.01</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Earnings before Income Tax and Social Contribution</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.75pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2,605,123</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">195,393</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.7pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6.01.01.02</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Provision and Inflation Adjustments on Provisions</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 5.75pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">218,521</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 1.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">148,463</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6.01.01.04</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Finance Charges from Customers</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.7pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-274,274</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.9pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-266,382</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6.01.01.05</FONT></TD>
    <TD STYLE="padding-top: 2pt; padding-right: 24.9pt; padding-left: 7.75pt; line-height: 96%"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt; line-height: 96%">Residual Value of Property, Plant and Equipment, Intangible Assets and Investment Properties Written-off</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.75pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">9,940</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">9,382</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.7pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6.01.01.06</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Depreciation and Amortization</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 5.75pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1,660,020</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 1.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1,510,301</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6.01.01.07</FONT></TD>
    <TD STYLE="padding-top: 2pt; padding-right: 21.4pt; padding-left: 7.75pt; line-height: 96%"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt; line-height: 96%">Interest on Borrowings and Financing Payable</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.75pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">478,061</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">440,681</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.65pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6.01.01.08</FONT></TD>
    <TD STYLE="padding-top: 1.9pt; padding-right: 41.95pt; padding-left: 7.75pt; line-height: 96%"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt; line-height: 96%">Monetary and Exchange Variation on Borrowings and Financing</FONT></TD>
    <TD STYLE="padding-top: 1.65pt; padding-right: 5.7pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">95,341</FONT></TD>
    <TD STYLE="padding-top: 1.65pt; padding-right: 1.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2,437,854</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.7pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6.01.01.09</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Interest and Monetary Variation Losses</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 5.7pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">27,990</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 1.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">19,722</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6.01.01.10</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Interest and Monetary Variation Gains</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.75pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-72,348</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-22,829</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.7pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6.01.01.11</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Allowance for Doubtful Accounts</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 5.75pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">383,711</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 1.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">349,791</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6.01.01.12</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Provision for Consent Decree (TAC)</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.75pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">3,134</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1,744</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6.01.01.13</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Equity Result</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.75pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-16,209</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.9pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-9,604</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6.01.01.14</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Interest and Inflation Adjustment (PPP)</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.75pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">344,282</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">305,386</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6.01.01.15</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Other Adjustments</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.7pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-1,395</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1,173</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6.01.01.16</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Transfer of Funds to the S&atilde;o Paulo Municipal Government</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.75pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">143,725</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">125,169</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.7pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6.01.01.17</FONT></TD>
    <TD STYLE="padding-top: 1.95pt; padding-right: 9.4pt; padding-left: 7.75pt; line-height: 96%"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt; line-height: 96%">Construction Margin over Intangible Assets Resulting from Concession Agreements</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 5.75pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-72,672</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 1.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-59,263</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.7pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6.01.01.18</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Pension Plan Obligations</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 5.75pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">136,096</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 1.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">173,420</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6.01.01.20</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Agreement with the Municipality of Mau&aacute;</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.85pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">0</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.9pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-280,774</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6.01.02</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Changes in Assets and Liabilities</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.7pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-918,886</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.9pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-629,428</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6.01.02.01</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Trade Receivables</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.7pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-412,159</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-39,620</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.7pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6.01.02.02</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Related-Party Balances and Transactions</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 5.7pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-1,944</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 1.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">79,400</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6.01.02.03</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Inventories</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.7pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-1,126</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-26,878</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6.01.02.04</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Recoverable Taxes</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.7pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-940,923</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-78,397</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6.01.02.05</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Other Receivables</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.7pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">16,436</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-61,933</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6.01.02.06</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Escrow Deposits</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.7pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">36,510</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">24,676</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6.01.02.08</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Trade Payables and Contractors</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.7pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-242,335</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.9pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-244,353</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6.01.02.09</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Salaries, Payroll Charges and Social Contributions</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.7pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">63,173</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-10,490</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.7pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6.01.02.10</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Pension Plan Obligations</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 5.7pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-153,899</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 1.9pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-154,387</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6.01.02.11</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Taxes and Contributions Payable</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.75pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">940,857</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">187,352</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6.01.02.12</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Services Payable</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.75pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-68,265</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-91,904</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6.01.02.13</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Other Liabilities</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.75pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-47,349</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-10,531</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6.01.02.14</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Provisions</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.7pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-111,674</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.9pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-207,951</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6.01.02.15</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Deferred Cofins/Pasep</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.75pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">3,812</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">5,588</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.7pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6.01.03</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Other</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 5.75pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-1,502,312</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 1.9pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-562,489</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6.01.03.01</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Interest Paid</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.7pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-556,877</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.9pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-562,489</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6.01.03.02</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Income Tax and Social Contribution Paid</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.7pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-945,435</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 2pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">0</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6.02</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Net Cash from Investing Activities</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.7pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-811,539</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-4,187,872</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6.02.01</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Acquisition of Contract Asset and Intangible Assets</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.75pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-2,477,227</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-2,334,629</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6.02.02</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Acquisition of Property, Plant and Equipment</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.75pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-27,366</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-25,782</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6.02.03</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Increase in Investments</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.85pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">0</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.9pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-4,531</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.7pt; padding-left: 2pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6.02.04</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-left: 7.75pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Restricted Cash</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 5.75pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">8,910</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 1.9pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-5,154</FONT></TD></TR>
  </TABLE>

<P STYLE="margin: 0">&nbsp;</P>

<!-- Field: Page; Sequence: 10 -->
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    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 85%"><P STYLE="text-align: left; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">ITR - Quarterly Information Form - 9/30/2021 - CIA SANEAMENTO BASICO EST SAO PAULO</P></TD><TD STYLE="text-align: center; width: 15%"><P STYLE="text-align: right; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">Version : 1</P></TD></TR></TABLE><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P></DIV>
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<P STYLE="margin: 0">&nbsp;</P>

<P STYLE="font: bold 12pt/193% Arial, Helvetica, Sans-Serif; margin-top: 4.1pt; margin-bottom: 0; margin-left: 7.35pt">Parent Company&rsquo;s Financial Statements
/ Statement of Cash Flows &ndash; Indirect Method (R$ thousand)</P>

<P STYLE="margin: 0">&nbsp;</P>

<P STYLE="margin: 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 11pt Georgia, Times, Serif; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 9%; padding-right: 6.8pt; padding-left: 2pt; line-height: 10pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Code</B></FONT></TD>
    <TD STYLE="width: 43%; padding-left: 7.75pt; line-height: 10.05pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Description</B></FONT></TD>
    <TD STYLE="width: 27%">
    <P STYLE="font: 9pt/9.9pt Arial, Helvetica, Sans-Serif; margin: 0 8.3pt 0 0; text-align: right"><B>YTD Current</B></P>
    <P STYLE="font: 9pt/9.15pt Arial, Helvetica, Sans-Serif; margin: 0 5.8pt 0 0; text-align: right"><B>Year</B></P></TD>
    <TD STYLE="width: 21%">
    <P STYLE="font: 9pt/9.9pt Arial, Helvetica, Sans-Serif; margin: 0 4.45pt 0 0; text-align: right"><B>YTD Previous</B></P>
    <P STYLE="font: 9pt/9.15pt Arial, Helvetica, Sans-Serif; margin: 0 2pt 0 0; text-align: right"><B>Year</B></P></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-right: 5.8pt; text-align: right; line-height: 10.05pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>1/01/2021 to 9/30/2021</B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-right: 2.05pt; text-align: right; line-height: 10.05pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>1/01/2020 to 9/30/2020</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.2pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6.02.07</FONT></TD>
    <TD STYLE="padding-top: 1.2pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Financial Investments</FONT></TD>
    <TD STYLE="padding-top: 1.2pt; padding-right: 5.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1,684,144</FONT></TD>
    <TD STYLE="padding-top: 1.2pt; padding-right: 2pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-1,817,776</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6.03</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Net Cash from Financing Activities</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.75pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-430,682</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 2pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-1,839,262</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6.03.01</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Funding</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1,606,484</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 2pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2,747,173</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.7pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6.03.02</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Amortization</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 5.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-1,285,529</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 2pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-3,150,780</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6.03.03</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Payment of Interest on Capital</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.75pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-254,218</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-890,095</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6.03.04</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Public-Private Partnership (PPP)</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.75pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-433,969</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-405,287</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6.03.05</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Program Contract Commitments</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-63,450</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 1.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-140,273</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6.05</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Increase (Decrease) in Cash and Cash Equivalents</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2,005,627</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 2pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-2,139,424</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6.05.01</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Opening Balance of Cash and Cash Equivalents</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">396,401</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 2pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2,253,210</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6.05.02</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 7.75pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Closing Balance of Cash and Cash Equivalents</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.8pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2,402,028</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 2pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">113,786</FONT></TD></TR>
  </TABLE>

<P STYLE="margin: 0">&nbsp;</P>

<P STYLE="margin: 0">&nbsp;</P>

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    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 85%"><P STYLE="text-align: left; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">ITR - Quarterly Information Form - 9/30/2021 - CIA SANEAMENTO BASICO EST SAO PAULO</P></TD><TD STYLE="text-align: center; width: 15%"><P STYLE="text-align: right; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">Version : 1</P></TD></TR></TABLE><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P></DIV>
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<P STYLE="margin: 0">&nbsp;</P>

<P STYLE="font: 12pt/193% Arial, Helvetica, Sans-Serif; margin-top: 4.1pt; margin-bottom: 0; margin-left: 7.35pt"><B>Parent Company&rsquo;s Financial Statements
/ Statement of Changes in Equity / 1/01/2021 to 9/30/2021 (R$ thousand)</B></P>

<P STYLE="margin: 0">&nbsp;</P>

<P STYLE="margin: 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 11pt Georgia, Times, Serif; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: black 1pt solid; width: 5%; line-height: 96%"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 7pt; line-height: 96%"><B>Code</B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; width: 26%; line-height: 7.8pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 7pt"><B>Description</B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; width: 14%; line-height: 96%; text-indent: -4.7pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 7pt; line-height: 96%"><B>Paid-up Capital</B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; width: 12%; text-align: justify; line-height: 96%; text-indent: 4.2pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 7pt; line-height: 96%"><B>Capital Reserves, Options Granted and Treasury Shares</B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; width: 11%; text-align: right; line-height: 7.8pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 7pt"><B>Profit Reserves</B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; width: 11%">
    <P STYLE="font: 7pt/7.7pt Arial, Helvetica, Sans-Serif; margin: 0 16pt 0 0; text-align: right"><B>Retained Earnings/Accumulated</B></P>
    <P STYLE="font: 7pt/7.95pt Arial, Helvetica, Sans-Serif; margin: 0 14.05pt 0 0; text-align: right"><B>Losses</B></P></TD>
    <TD STYLE="border-bottom: black 1pt solid; width: 11%">
    <P STYLE="font: 7pt/7.7pt Arial, Helvetica, Sans-Serif; margin: 0 16.45pt 0 0; text-align: right"><B>Other Comprehensive</B></P>
    <P STYLE="font: 7pt/7.95pt Arial, Helvetica, Sans-Serif; margin: 0 14.45pt 0 0; text-align: right"><B>Income</B></P></TD>
    <TD STYLE="border-bottom: black 1pt solid; width: 10%; text-align: right; line-height: 7.8pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 7pt"><B>Equity</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">5.01</FONT></TD>
    <TD STYLE="padding-top: 1.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">Opening Balances</FONT></TD>
    <TD STYLE="padding-top: 1.25pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">15,000,000</FONT></TD>
    <TD STYLE="padding-top: 1.25pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">0</FONT></TD>
    <TD STYLE="padding-top: 1.25pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">8,194,706</FONT></TD>
    <TD STYLE="padding-top: 1.25pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">0</FONT></TD>
    <TD STYLE="padding-top: 1.25pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">-401,002</FONT></TD>
    <TD STYLE="padding-top: 1.25pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">22,793,704</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 2.95pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">5.03</FONT></TD>
    <TD STYLE="padding-top: 2.95pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">Restated Opening Balances</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">15,000,000</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">0</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">8,194,706</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">0</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">-401,002</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">22,793,704</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 2.95pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">5.04</FONT></TD>
    <TD STYLE="padding-top: 2.95pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">Capital Transactions with Partners</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">0</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">0</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">-26,376</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">0</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">0</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">-26,376</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 2.9pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">5.04.08</FONT></TD>
    <TD STYLE="padding-top: 2.9pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">Additional Dividends Approved</FONT></TD>
    <TD STYLE="padding-top: 2.9pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">0</FONT></TD>
    <TD STYLE="padding-top: 2.9pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">0</FONT></TD>
    <TD STYLE="padding-top: 2.9pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">-26,376</FONT></TD>
    <TD STYLE="padding-top: 2.9pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">0</FONT></TD>
    <TD STYLE="padding-top: 2.9pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">0</FONT></TD>
    <TD STYLE="padding-top: 2.9pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">-26,376</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 2.95pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">5.05</FONT></TD>
    <TD STYLE="padding-top: 2.95pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">Total Comprehensive Income</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">0</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">0</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">0</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">1,738,441</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">0</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">1,738,441</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 2.95pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">5.05.01</FONT></TD>
    <TD STYLE="padding-top: 2.95pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">Net Income for the Period</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">0</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">0</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">0</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">1,738,441</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">0</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">1,738,441</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 2.95pt; line-height: 7.05pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">5.07</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; line-height: 7.05pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">Closing Balances</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right; line-height: 7.05pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">15,000,000</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right; line-height: 7.05pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">0</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right; line-height: 7.05pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">8,168,330</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right; line-height: 7.05pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">1,738,441</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right; line-height: 7.05pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">-401,002</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right; line-height: 7.05pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">24,505,769</FONT></TD></TR>
  </TABLE>

<P STYLE="margin: 0">&nbsp;</P>

<P STYLE="margin: 0">&nbsp;</P>

<!-- Field: Page; Sequence: 12 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: right; width: 100%">Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->10<!-- Field: /Sequence --> of 87&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: 85%"><P STYLE="text-align: left; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">ITR - Quarterly Information Form - 9/30/2021 - CIA SANEAMENTO BASICO EST SAO PAULO</P></TD><TD STYLE="text-align: center; width: 15%"><P STYLE="text-align: right; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">Version : 1</P></TD></TR></TABLE><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P></DIV>
    <!-- Field: /Page -->



<P STYLE="margin: 0">&nbsp;</P>

<P STYLE="font: bold 12pt/193% Arial, Helvetica, Sans-Serif; margin-top: 4.1pt; margin-bottom: 0; margin-left: 7.35pt">Parent Company&rsquo;s Financial Statements
/ Statement of Changes in Equity / 1/01/2020 to 9/30/2020 (R$ thousand)</P>

<P STYLE="margin: 0">&nbsp;</P>

<P STYLE="margin: 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 11pt Georgia, Times, Serif; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: black 1pt solid; width: 5%; line-height: 96%"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 7pt; line-height: 96%"><B>Code</B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; width: 26%; line-height: 7.8pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 7pt"><B>Description</B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; width: 12%; line-height: 96%; text-indent: -4.7pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 7pt; line-height: 96%"><B>Paid-up Capital</B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; width: 14%; text-align: justify; line-height: 96%; text-indent: 4.2pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 7pt; line-height: 96%"><B>Capital Reserves, Options Granted and Treasury Shares</B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; width: 11%; text-align: right; line-height: 7.8pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 7pt"><B>Profit Reserves</B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; width: 11%">
    <P STYLE="font: 7pt/7.7pt Arial, Helvetica, Sans-Serif; margin: 0 16pt 0 0; text-align: right"><B>Retained Earnings/Accumulated</B></P>
    <P STYLE="font: 7pt/7.95pt Arial, Helvetica, Sans-Serif; margin: 0 14.05pt 0 0; text-align: right"><B>Losses</B></P></TD>
    <TD STYLE="border-bottom: black 1pt solid; width: 11%">
    <P STYLE="font: 7pt/7.7pt Arial, Helvetica, Sans-Serif; margin: 0 16.45pt 0 0; text-align: right"><B>Other Comprehensive</B></P>
    <P STYLE="font: 7pt/7.95pt Arial, Helvetica, Sans-Serif; margin: 0 14.45pt 0 0; text-align: right"><B>Income</B></P></TD>
    <TD STYLE="border-bottom: black 1pt solid; width: 10%; text-align: right; line-height: 7.8pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 7pt"><B>Equity</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">5.01</FONT></TD>
    <TD STYLE="padding-top: 1.25pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">Opening Balances</FONT></TD>
    <TD STYLE="padding-top: 1.25pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">15,000,000</FONT></TD>
    <TD STYLE="padding-top: 1.25pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">0</FONT></TD>
    <TD STYLE="padding-top: 1.25pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">7,547,954</FONT></TD>
    <TD STYLE="padding-top: 1.25pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">0</FONT></TD>
    <TD STYLE="padding-top: 1.25pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">-912,171</FONT></TD>
    <TD STYLE="padding-top: 1.25pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">21,635,783</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 2.95pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">5.03</FONT></TD>
    <TD STYLE="padding-top: 2.95pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">Restated Opening Balances</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">15,000,000</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">0</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">7,547,954</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">0</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">-912,171</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">21,635,783</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 2.95pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">5.04</FONT></TD>
    <TD STYLE="padding-top: 2.95pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">Capital Transactions with Partners</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">0</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">0</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">-80,973</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">0</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">0</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">-80,973</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 2.9pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">5.04.08</FONT></TD>
    <TD STYLE="padding-top: 2.9pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">Additional Dividends Approved</FONT></TD>
    <TD STYLE="padding-top: 2.9pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">0</FONT></TD>
    <TD STYLE="padding-top: 2.9pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">0</FONT></TD>
    <TD STYLE="padding-top: 2.9pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">-80,973</FONT></TD>
    <TD STYLE="padding-top: 2.9pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">0</FONT></TD>
    <TD STYLE="padding-top: 2.9pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">0</FONT></TD>
    <TD STYLE="padding-top: 2.9pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">-80,973</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 2.95pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">5.05</FONT></TD>
    <TD STYLE="padding-top: 2.95pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">Total Comprehensive Income</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">0</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">0</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">0</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">141,790</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">17</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">141,807</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 2.95pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">5.05.01</FONT></TD>
    <TD STYLE="padding-top: 2.95pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">Net Income for the Period</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">0</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">0</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">0</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">141,790</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">0</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">141,790</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 2.95pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">5.05.02</FONT></TD>
    <TD STYLE="padding-top: 2.95pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">Other Comprehensive Income</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">0</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">0</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">0</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">0</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">17</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">17</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 2.95pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">5.05.02.06</FONT></TD>
    <TD STYLE="padding-top: 2.95pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">Actuarial gains and Losses</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">0</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">0</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">0</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">0</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">17</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">17</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 2.95pt; line-height: 7.05pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">5.07</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; line-height: 7.05pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">Closing Balances</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right; line-height: 7.05pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">15,000,000</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right; line-height: 7.05pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">0</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right; line-height: 7.05pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">7,466,981</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right; line-height: 7.05pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">141,790</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right; line-height: 7.05pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">-912,154</FONT></TD>
    <TD STYLE="padding-top: 2.95pt; text-align: right; line-height: 7.05pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 7pt">21,696,617</FONT></TD></TR>
  </TABLE>

<P STYLE="margin: 0">&nbsp;</P>

<P STYLE="margin: 0">&nbsp;</P>

<!-- Field: Page; Sequence: 13 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: right; width: 100%">Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->11<!-- Field: /Sequence --> of 87&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: 85%"><P STYLE="text-align: left; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">ITR - Quarterly Information Form - 9/30/2021 - CIA SANEAMENTO BASICO EST SAO PAULO</P></TD><TD STYLE="text-align: center; width: 15%"><P STYLE="text-align: right; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">Version : 1</P></TD></TR></TABLE><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P></DIV>
    <!-- Field: /Page -->



<P STYLE="margin: 0">&nbsp;</P>

<P STYLE="font: 12pt/193% Arial, Helvetica, Sans-Serif; margin-top: 4.6pt; margin-bottom: 0; margin-left: 29.35pt"><B>Parent Company&rsquo;s Financial Statements
/ Statement of Value Added (R$ thousand)</B></P>

<P STYLE="margin: 0">&nbsp;</P>

<P STYLE="margin: 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 11pt Georgia, Times, Serif; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 9%; padding-right: 6.8pt; padding-left: 2pt; line-height: 10pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Code</B></FONT></TD>
    <TD STYLE="width: 46%; padding-left: 7.75pt; line-height: 10.05pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Description</B></FONT></TD>
    <TD STYLE="width: 24%">
    <P STYLE="font: 9pt/9.9pt Arial, Helvetica, Sans-Serif; margin: 0 8.3pt 0 0; text-align: right"><B>YTD Current</B></P>
    <P STYLE="font: 9pt/9.15pt Arial, Helvetica, Sans-Serif; margin: 0 5.8pt 0 0; text-align: right"><B>Year</B></P></TD>
    <TD STYLE="width: 21%">
    <P STYLE="font: 9pt/9.9pt Arial, Helvetica, Sans-Serif; margin: 0 4.5pt 0 0; text-align: right"><B>YTD Previous</B></P>
    <P STYLE="font: 9pt/9.15pt Arial, Helvetica, Sans-Serif; margin: 0 2.05pt 0 0; text-align: right"><B>Year</B></P></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-right: 5.8pt; text-align: right; line-height: 10.05pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>1/01/2021 to 9/30/2021</B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-right: 2.1pt; text-align: right; line-height: 10.05pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>1/01/2020 to 9/30/2020</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.2pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">7.01</FONT></TD>
    <TD STYLE="padding-top: 1.2pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Revenue</FONT></TD>
    <TD STYLE="padding-top: 1.2pt; padding-right: 5.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">15,006,344</FONT></TD>
    <TD STYLE="padding-top: 1.2pt; padding-right: 2.1pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">13,414,283</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">7.01.01</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Goods, Products and Services Sold</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">12,103,359</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 2.1pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">11,105,595</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">7.01.02</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Other Revenue</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.75pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">54,357</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 2.05pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">64,027</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.7pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">7.01.03</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Revenue from Construction of Own Assets</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 5.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">3,232,339</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 2.05pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2,594,452</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">7.01.04</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Allowance for/Reversal of Doubtful Accounts</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.75pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-383,711</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 2pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-349,791</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">7.02</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Inputs Acquired from Third Parties</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-6,760,496</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 2.05pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-5,659,013</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">7.02.01</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Costs of Goods, Products and Services Sold</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-5,836,974</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 2.05pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-4,928,302</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">7.02.02</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Materials, Electricity, Outsourced Services and Others</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.75pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-896,519</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 2pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-785,942</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">7.02.04</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Other</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-27,003</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 2.05pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">55,231</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">7.03</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Gross Value Added</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">8,245,848</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 2.05pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">7,755,270</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.7pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">7.04</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Retentions</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 5.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-1,660,020</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 2.05pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-1,510,301</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">7.04.01</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Depreciation, Amortization and Depletion</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-1,660,020</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 2.05pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-1,510,301</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">7.05</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Net Value Added Produced</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6,585,828</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 2.05pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6,244,969</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">7.06</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Wealth Received in Transfer</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">376,505</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 2.05pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">262,292</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">7.06.01</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Equity Result</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.75pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">16,209</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 2.05pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">9,604</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">7.06.02</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Financial Income</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">360,296</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 2.05pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">252,688</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">7.07</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Total Value Added to Distribute</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6,962,333</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 2.05pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6,507,261</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.7pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">7.08</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Value Added Distribution</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 5.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6,962,333</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 2.05pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6,507,261</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">7.08.01</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Personnel</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1,781,105</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 2.05pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1,821,020</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">7.08.01.01</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Salaries and Wages</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1,258,072</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 2.05pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1,305,532</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">7.08.01.02</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Benefits</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">427,149</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 2.05pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">444,312</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">7.08.01.03</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Government Severance Indemnity Fund for Employees (FGTS)</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.75pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">95,884</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 2.05pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">71,176</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">7.08.02</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Taxes and Contributions</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2,273,545</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 2.05pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1,310,936</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.7pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">7.08.02.01</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Federal</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 5.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2,107,248</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 2.05pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1,156,737</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">7.08.02.02</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">State</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">116,849</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 2.05pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">110,380</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">7.08.02.03</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Municipal</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.75pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">49,448</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 2.05pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">43,819</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">7.08.03</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Value Distributed to Providers of Capital</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1,169,242</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 2.05pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">3,233,515</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">7.08.03.01</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Interest</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1,152,647</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 2.05pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">3,221,819</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">7.08.03.02</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Rentals</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.75pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">16,595</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 2.05pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">11,696</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.75pt; padding-left: 2pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">7.08.04</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-left: 7.75pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Value Distributed to Shareholders</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 5.8pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1,738,441</FONT></TD>
    <TD STYLE="padding-top: 1.75pt; padding-right: 2.05pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">141,790</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.7pt; padding-left: 2pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">7.08.04.03</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-left: 7.75pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Retained Earnings/Accumulated Losses for the Period</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 5.8pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1,738,441</FONT></TD>
    <TD STYLE="padding-top: 1.7pt; padding-right: 2.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">141,790</FONT></TD></TR>
  </TABLE>

<P STYLE="margin: 0">&nbsp;</P>

<P STYLE="margin: 0">&nbsp;</P>

<!-- Field: Page; Sequence: 14; Options: NewSection; Value: 12 -->
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    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 85%"><P STYLE="text-align: left; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">ITR - Quarterly Information Form - 9/30/2021 - CIA SANEAMENTO BASICO EST SAO PAULO</P></TD><TD STYLE="text-align: center; width: 15%"><P STYLE="text-align: right; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">Version : 1</P></TD></TR></TABLE><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B>Comments on the Company&rsquo;s Performance</B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 9.5pt Georgia, Times, Serif; margin: 0.3pt 0 0">&nbsp;</P>

<P STYLE="font: bold 14pt Arial, Helvetica, Sans-Serif; margin: 4.5pt 0 0 55.7pt; text-indent: 0in; color: navy">Highlights</P>

<P STYLE="font: 14.5pt Arial, Helvetica, Sans-Serif; margin: 0.45pt 0 0"><B>&nbsp;</B></P>

<P STYLE="font: 9.5pt/110% Arial MT,sans-serif; margin: 0 21.05pt 0 55.65pt; text-align: justify">The Company recorded a net income of
R$ 468.6 million in 3Q21, compared to the R$ 421.6 million reported in 3Q20, an increase of R$ 47.0 million (+11.1%).</P>

<P STYLE="font: 9.5pt/110% Arial MT,sans-serif; margin: 5.95pt 21.15pt 0 55.65pt; text-align: justify">Adjusted EBITDA totaled R$ 1,789.3
million, an increase of R$ 275.7 million from the R$ 1,513.6 million reported in 3Q20 (18.2%).</P>

<P STYLE="font: 10pt Arial MT,sans-serif; margin: 0">&nbsp;</P>

<P STYLE="font: bold 9.5pt Arial, Helvetica, Sans-Serif; margin: 6.4pt 0 0 55.65pt; text-indent: 0in">Revenue from sanitation services</P>

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

<P STYLE="font: 9.5pt/110% Arial MT,sans-serif; margin: 0 42.25pt 0 55.65pt; text-align: justify">Increased by R$ 645.8 million, impacted
by: (i) tariff adjustment; (ii) higher total volume, excluding the volumes from the Residential Social and Residential Favela categories
that were exempt from paying the tariff in 3Q20; (iii) higher revenue after the start of the operation in the municipality of Mau&aacute;;
and (iv) higher average tariff due to the increase in the billed volume from the Commercial, Industrial, and Public categories.</P>

<P STYLE="font: 10pt Arial MT,sans-serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10.5pt Arial MT,sans-serif; margin: 0.3pt 0 0">&nbsp;</P>

<P STYLE="font: bold 9.5pt Arial, Helvetica, Sans-Serif; margin: 0 0 0 55.65pt; text-indent: 0in">Costs, administrative and selling expenses
(excluding construction costs)</P>

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

<P STYLE="font: 9.5pt/110% Arial MT,sans-serif; margin: 0 42.35pt 0 55.65pt; text-align: justify">Growth of R$ 347.5 million, mainly due
to the (i) R$ 103.0 million increase in general expenses; (ii) R$ 64.4 million increase in expenses with services; (iii) R$ 64.0 million
increase in electricity expenses; and (iv) R$ 43.5 million increase in the allowance for doubtful accounts.</P>

<P STYLE="font: 10pt Arial MT,sans-serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10.5pt Arial MT,sans-serif; margin: 0.3pt 0 0">&nbsp;</P>

<P STYLE="font: bold 9.5pt Arial, Helvetica, Sans-Serif; margin: 0 0 0 55.65pt; text-indent: 0in">Impacts from the exchange variation</P>

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

<P STYLE="font: 9.5pt/110% Arial MT,sans-serif; margin: 0 21.05pt 0 55.65pt; text-align: justify">Despite the reduction in foreign currency
debt, expenses with exchange variation on borrowings and financing increased by R$ 141.5 million, due to the appreciation of the U.S.
dollar and Yen against the Real in 3Q21, compared to the figures reported in 3Q20, as shown below:</P>

<P STYLE="font: 4pt Arial MT,sans-serif; margin: 0.3pt 0 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 76%; border-bottom: black 1pt solid; font: 11pt Georgia, Times, Serif; border-right: black 1pt solid">&nbsp;</TD>
    <TD STYLE="width: 12%; border-top: black 1pt solid; border-right: black 1pt solid; border-bottom: black 1pt solid; font: 11pt/8.3pt Georgia, Times, Serif; background-color: #95B3D7; padding-top: 3.45pt; padding-left: 17.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>3Q21</B></FONT></TD>
    <TD STYLE="width: 12%; border-top: black 1pt solid; border-right: black 1pt solid; border-bottom: black 1pt solid; font: 11pt/8.3pt Georgia, Times, Serif; background-color: #95B3D7; padding-top: 3.45pt; padding-left: 17.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>3Q20</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; font: 11pt/8.3pt Georgia, Times, Serif; padding-top: 3.45pt; padding-left: 3.45pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Foreign currency debt - R$ thousand</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; font: 11pt/8.3pt Georgia, Times, Serif; padding-top: 3.45pt; padding-right: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">3,242,505</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; font: 11pt/8.3pt Georgia, Times, Serif; padding-top: 3.45pt; padding-right: 2.9pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">3,720,328</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; font: 11pt/8.3pt Georgia, Times, Serif; padding-top: 3.45pt; padding-left: 3.45pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Foreign currency debt as a percentage of total debt</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; font: 11pt/8.3pt Georgia, Times, Serif; padding-top: 3.45pt; padding-right: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">18%</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; font: 11pt/8.3pt Georgia, Times, Serif; padding-top: 3.45pt; padding-right: 2.9pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">24%</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; font: 11pt/8.35pt Georgia, Times, Serif; padding-top: 3.4pt; padding-left: 3.45pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">U.S. variation in the quarter</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; font: 11pt/8.35pt Georgia, Times, Serif; padding-top: 3.4pt; padding-right: 2.9pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">8.7%</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; font: 11pt/8.35pt Georgia, Times, Serif; padding-top: 3.4pt; padding-right: 2.9pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">3.0%</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; font: 11pt/8.35pt Georgia, Times, Serif; padding-top: 3.4pt; padding-left: 3.45pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Yen variation in the quarter</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; font: 11pt/8.35pt Georgia, Times, Serif; padding-top: 3.4pt; padding-right: 3pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">8.3%</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; font: 11pt/8.35pt Georgia, Times, Serif; padding-top: 3.4pt; padding-right: 2.9pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">5.2%</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 14.5pt Arial MT,sans-serif; margin: 0.4pt 0 0">&nbsp;</P>

<P STYLE="font: bold 9.5pt Arial, Helvetica, Sans-Serif; margin: 0 0 0 55.7pt; text-indent: 0in">Operations in the Municipality of Mau&aacute;</P>

<P STYLE="font: 11pt Arial, Helvetica, Sans-Serif; margin: 0.45pt 0 0"><B>&nbsp;</B></P>

<P STYLE="font: 9.5pt/110% Arial MT,sans-serif; margin: 0.05pt 21.05pt 0 55.65pt; text-align: justify">In June 2020, the Company executed
an agreement with the municipality of Mau&aacute;, solely to supply water, and started operations in November. The start of the operation
impacted revenue from sanitation services by R$ 24.7 million and expenses by R$ 11.4 million, as shown below:</P>

<P STYLE="font: 4pt Arial MT,sans-serif; margin: 0.25pt 0 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 11pt Georgia, Times, Serif; border-collapse: collapse">
  <TR STYLE="vertical-align: top; background-color: #8EB4E2">
    <TD COLSPAN="3" STYLE="border: black 1pt solid; padding-top: 2.05pt; padding-right: 125.85pt; padding-left: 126.6pt; text-align: center"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B><I>Mau&aacute; Impacts (R$ million)</I></B></FONT></TD>
    <TD STYLE="border-top: black 1pt solid; border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2.05pt; padding-left: 20.75pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>Var.</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top; background-color: #8EB4E2">
    <TD STYLE="width: 51%; border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid">&nbsp;</TD>
    <TD STYLE="width: 16%; border-bottom: black 1pt solid; border-right: black 1pt solid; padding-top: 2pt; padding-right: 26.3pt; padding-left: 27.2pt; text-align: center"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>3Q21</B></FONT></TD>
    <TD STYLE="width: 17%; border-bottom: black 1pt solid; border-right: black 1pt solid; padding-top: 2pt; padding-right: 29.5pt; padding-left: 30.25pt; text-align: center"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>3Q20</B></FONT></TD>
    <TD STYLE="width: 16%; border-bottom: black 1pt solid; border-right: black 1pt solid; padding-top: 2pt; padding-right: 30.45pt; padding-left: 31.3pt; text-align: center"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>R$</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 2pt; padding-left: 14.55pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Wholesale Revenue - agreement <SUP>(1)</SUP></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2pt; padding-right: 2.35pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2pt; padding-right: 2.45pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">0.1</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2pt; padding-right: 2.5pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">(0.1)</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 2.05pt; padding-left: 14.55pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Revenue - Retail <SUP>(2)</SUP></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2.05pt; padding-right: 2.35pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">24.7</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2.05pt; padding-right: 2.4pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2.05pt; padding-right: 2.45pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">24.7</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 2pt; padding-left: 3.45pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>(=) Total Revenue from Sanitation Services</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2pt; padding-right: 2.35pt; text-align: right"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>24.7</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2pt; padding-right: 2.4pt; text-align: right"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>0.1</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2pt; padding-right: 2.45pt; text-align: right"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>24.6</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 2pt; padding-left: 14.55pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">COFINS and PASEP</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2pt; padding-right: 2.4pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">(1.9)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2pt; padding-right: 2.45pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">(0.0)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2pt; padding-right: 2.45pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">(1.9)</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 2.05pt; padding-left: 3.45pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>(=) Net Revenue</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2.05pt; padding-right: 2.35pt; text-align: right"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>22.8</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2.05pt; padding-right: 2.4pt; text-align: right"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>0.1</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2.05pt; padding-right: 2.45pt; text-align: right"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>22.7</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 2pt; padding-left: 14.55pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Costs and expenses <SUP>(3)</SUP></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2pt; padding-right: 2.45pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">(11.4)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2pt; padding-right: 2.45pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2pt; padding-right: 2.5pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">(11.4)</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 2pt; padding-left: 3.45pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>(=) Total Expenses</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2pt; padding-right: 2.4pt; text-align: right"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>(11.4)</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2pt; padding-right: 2.4pt; text-align: right"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>-</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2pt; padding-right: 2.45pt; text-align: right"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>(11.4)</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 2.05pt; padding-left: 3.45pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>(=) Net effect</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2.05pt; padding-right: 2.35pt; text-align: right"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>11.4</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2.05pt; padding-right: 2.4pt; text-align: right"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>0.1</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2.05pt; padding-right: 2.4pt; text-align: right"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>11.3</B></FONT></TD></TR>
  </TABLE>
<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Georgia, Times, Serif; margin-top: 2.85pt; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 58.95pt"></TD><TD STYLE="width: 18.05pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><I>(1)</I></FONT></TD><TD><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><I>In 3Q20, revenue refers to wholesale billing.</I></FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Georgia, Times, Serif; margin-top: 2.8pt; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 58.95pt"></TD><TD STYLE="width: 18.05pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><I>(2)</I></FONT></TD><TD><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><I>Revenue from retail billing.</I></FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Georgia, Times, Serif; margin-top: 2.8pt; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 58.95pt"></TD><TD STYLE="width: 18.05pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><I>(3)</I></FONT></TD><TD><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><I>Costs and expenses related to the operation (excludes indirect
costs and expenses).</I></FONT></TD></TR></TABLE>


<!-- Field: Page; Sequence: 15 -->
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    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 85%"><P STYLE="text-align: left; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">ITR - Quarterly Information Form - 9/30/2021 - CIA SANEAMENTO BASICO EST SAO PAULO</P></TD><TD STYLE="text-align: center; width: 15%"><P STYLE="text-align: right; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">Version : 1</P></TD></TR></TABLE><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B>Comments on the Company&rsquo;s Performance</B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt">&nbsp;</P></DIV>
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<P STYLE="font: 9.5pt Georgia, Times, Serif; margin: 0.55pt 0 0">&nbsp;</P>

<P STYLE="font: bold 9.5pt Arial, Helvetica, Sans-Serif; margin: 4.65pt 0 0 55.7pt; text-indent: 0in">Impacts from the COVID-19 pandemic</P>

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

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<TD STYLE="width: 55.65pt"></TD><TD STYLE="width: 21.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9.5pt">(i)</FONT></TD><TD STYLE="padding-right: 21pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9.5pt">Increase of R$ 43.5 million (+57.9%)
in the allowance for doubtful accounts, mainly from the higher delinquency recorded in 3Q21;</FONT></TD></TR></TABLE>

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<TD STYLE="width: 55.7pt"></TD><TD STYLE="width: 21.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9.5pt">(ii)</FONT></TD><TD STYLE="padding-right: 20.95pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9.5pt">Postponement of the tariff adjustment
in 3Q20, with an estimated net impact of R$ 65.6 million on operating revenue. The refund of this impact was authorized by ARSESP and
started in August 2020; and</FONT></TD></TR></TABLE>

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<TD STYLE="width: 55.65pt"></TD><TD STYLE="width: 21.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9.5pt">(iii)</FONT></TD><TD STYLE="padding-right: 20.95pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9.5pt">Payment exemption for customers in
the &quot;Residential Social&quot; and &#8220;Residential Favela&#8221; categories in 3Q20, estimated at R$ 51.6 million. </FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Arial MT,sans-serif; margin: 0">&nbsp;</P>

<P STYLE="font: 14.5pt Arial MT,sans-serif; margin: 0.25pt 0 0">&nbsp;</P>

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<TD STYLE="width: 37.6pt"></TD><TD STYLE="width: 18.05pt">1.</TD><TD>Result for the period</TD></TR></TABLE>

<P STYLE="font: 9.5pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 12.5pt Arial, Helvetica, Sans-Serif; margin: 0.1pt 0 0"><B>&nbsp;</B></P>

<P STYLE="text-align: right; font: 8pt Arial, Helvetica, Sans-Serif; margin: 0 0 0 37.65pt"><B><I>R$ million</I></B></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 11pt Georgia, Times, Serif; border-collapse: collapse">
  <TR STYLE="vertical-align: top; background-color: #8EB4E2">
    <TD STYLE="border: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-top: black 1pt solid; border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-top: black 1pt solid; border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="border-top: black 1pt solid; border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-left: 27.55pt; line-height: 8.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>Var.</B></FONT></TD>
    <TD STYLE="border-top: black 1pt solid; border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-top: black 1pt solid; border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="border-top: black 1pt solid; border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-left: 26.75pt; line-height: 8.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>Var.</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top; background-color: #8EB4E2">
    <TD STYLE="width: 35%; border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid">&nbsp;</TD>
    <TD STYLE="width: 9%; border-bottom: black 1pt solid; border-right: black 1pt solid; padding-top: 4.15pt; padding-left: 17.15pt; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>3Q21</B></FONT></TD>
    <TD STYLE="width: 9%; border-bottom: black 1pt solid; border-right: black 1pt solid; padding-top: 4.15pt; padding-left: 17.1pt; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>3Q20</B></FONT></TD>
    <TD STYLE="width: 8%; border-bottom: black 1pt solid; border-right: black 1pt solid; padding-top: 4.15pt; padding-right: 16.7pt; padding-left: 17.5pt; text-align: center; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>R$</B></FONT></TD>
    <TD STYLE="width: 7%; border-bottom: black 1pt solid; border-right: black 1pt solid; padding-top: 4.15pt; padding-left: 0.7pt; text-align: center; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>%</B></FONT></TD>
    <TD STYLE="width: 9%; border-bottom: black 1pt solid; border-right: black 1pt solid; padding-top: 4.15pt; padding-left: 16.25pt; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>9M21</B></FONT></TD>
    <TD STYLE="width: 9%; border-bottom: black 1pt solid; border-right: black 1pt solid; padding-top: 4.15pt; padding-left: 16.2pt; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>9M20</B></FONT></TD>
    <TD STYLE="width: 8%; border-bottom: black 1pt solid; border-right: black 1pt solid; padding-top: 4.15pt; padding-right: 16.5pt; padding-left: 17.25pt; text-align: center; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>R$</B></FONT></TD>
    <TD STYLE="width: 6%; border-bottom: black 1pt solid; border-right: black 1pt solid; padding-top: 4.15pt; padding-left: 0.55pt; text-align: center; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>%</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 3.45pt; padding-left: 14.55pt; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Revenue from sanitation services</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 6.05pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">4,284.9</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 6.1pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">3,639.1</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 5.15pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">645.8</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 3.35pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">17.7</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 6pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">12,103.4</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 6.05pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">11,105.6</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 5.2pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">997.8</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 4.1pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">9.0</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 3.45pt; padding-left: 14.55pt; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Construction revenue</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 6.05pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">1,186.1</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 6.1pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">1,053.4</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 5.15pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">132.7</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 3.35pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">12.6</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 6pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">3,232.3</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 6.05pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">2,594.5</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 5.2pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">637.8</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 4.1pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">24.6</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 4.15pt; padding-left: 14.6pt; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">COFINS and PASEP/TRCF taxes</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 5.1pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">(317.1)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 5.1pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">(254.0)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 4.2pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">(63.1)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 3.35pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">24.8</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 5.05pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">(908.4)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 5.05pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">(786.7)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 4.3pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">(121.7)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 4.1pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">15.5</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 3.45pt; padding-left: 3.45pt; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>(=) Net operating income</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 6.05pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>5,153.9</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 6.1pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>4,438.5</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 5.15pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>715.4</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 3.35pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>16.1</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 6pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>14,427.3</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 6.05pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>12,913.4</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 5.25pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>1,513.9</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 4.1pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>11.7</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 3.45pt; padding-left: 14.55pt; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Costs and expenses</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 5.15pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">(2,774.0)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 5.15pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">(2,426.5)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 4.25pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">(347.5)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 3.35pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">14.3</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 5.05pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">(8,065.0)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 5.1pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">(7,319.3)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 4.3pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">(745.7)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 4.1pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">10.2</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 3.4pt; padding-left: 14.55pt; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Construction costs</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 5.15pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">(1,159.5)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 5.15pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">(1,029.7)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 4.25pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">(129.8)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 3.35pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">12.6</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 5.05pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">(3,159.7)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 5.1pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">(2,535.2)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 4.3pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">(624.5)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 4.1pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">24.6</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 3.4pt; padding-left: 14.55pt; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Equity pickup</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 6.05pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">4.0</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 6.05pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">3.1</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 5.1pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">0.9</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 3.3pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">29.0</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 5.95pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">16.2</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 6pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">9.6</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 5.2pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">6.6</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 3.3pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">68.8</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 3.4pt; padding-left: 14.55pt; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Other operating revenues (expenses), net</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 6.05pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">2.7</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 6.05pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">0.8</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 5.1pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">1.9</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 3.3pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">237.5</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 6pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">12.5</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 6.05pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">113.3</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 4.3pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">(100.8)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 3.2pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">(89.0)</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 4.15pt; padding-left: 3.45pt; line-height: 8.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>(=) Earnings before financial result, income tax and social contribution</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 6.05pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>1,227.1</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 6.05pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>986.2</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 5.15pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>240.9</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 3.35pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>24.4</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 6pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>3,231.3</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 6.05pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>3,181.8</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 5.25pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>49.5</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 4.15pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>1.6</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 3.4pt; padding-left: 14.55pt; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Financial result</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 5.15pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">(520.6)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 5.1pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">(330.6)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 4.2pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">(190.0)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 3.35pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">57.5</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 5.05pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">(626.2)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 5.05pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">(2,986.4)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 5.2pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">2,360.2</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 3.2pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">(79.0)</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 3.4pt; padding-left: 3.45pt; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>(=) Earnings before income tax and social contribution</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 6pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>706.5</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 6pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>655.6</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 5.15pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>50.9</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 3.35pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>7.8</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 6pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>2,605.1</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 6pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>195.4</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 5.25pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>2,409.7</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 4.15pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>1,233.2</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 4.15pt; padding-left: 14.55pt; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Income tax and social contribution</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 5.15pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">(237.9)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 5.15pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">(234.0)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 4.2pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">(3.9)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 3.3pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">1.7</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 5.05pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">(866.7)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 5.1pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">(53.6)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 4.25pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">(813.1)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 4.1pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">1,517.0</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 4.15pt; padding-left: 3.45pt; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>(=) Net income</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 6pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>468.6</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 6.05pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>421.6</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 5.15pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>47.0</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 3.35pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>11.1</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 6pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>1,738.4</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 6.05pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>141.8</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 5.25pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>1,596.6</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 4.1pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>1,126.0</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 4.2pt; padding-left: 14.55pt; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Earnings per share (R$)*</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.2pt; padding-right: 6.1pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">0.69</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.2pt; padding-right: 6.1pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">0.62</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.2pt; padding-right: 6pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">2.54</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.2pt; padding-right: 6pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">0.21</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD></TR>
  </TABLE>
<P STYLE="font: 3.5pt Arial, Helvetica, Sans-Serif; margin: 0.5pt 0 0"><B><I>&nbsp;</I></B></P>

<P STYLE="font: 7pt Arial, Helvetica, Sans-Serif; margin: 4.8pt 0 0 55.7pt"><I>(*) Number of shares = 683,509,869</I></P>

<P STYLE="font: 5.5pt Arial, Helvetica, Sans-Serif; margin: 0.5pt 0 0"><I>&nbsp;</I></P>

<P STYLE="font: bold 10pt Arial, Helvetica, Sans-Serif; margin: 4.7pt 0 0 34.45pt; color: navy">Adjusted EBITDA Reconciliation (Non-accounting
measures)</P>

<P STYLE="font: 9.5pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 8.5pt Arial, Helvetica, Sans-Serif; margin: 0.25pt 0 0"><B>&nbsp;</B></P>

<P STYLE="text-align: right; font: 8pt Arial, Helvetica, Sans-Serif; margin: 0 0 0 34.45pt"><B><I>R$ million</I></B></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 11pt Georgia, Times, Serif; border-collapse: collapse">
  <TR STYLE="vertical-align: top; background-color: #8EB4E2">
    <TD STYLE="border: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-top: black 1pt solid; border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-top: black 1pt solid; border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="border-top: black 1pt solid; border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-left: 25.65pt; line-height: 8.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>Var.</B></FONT></TD>
    <TD STYLE="border-top: black 1pt solid; border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-top: black 1pt solid; border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="border-top: black 1pt solid; border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-left: 26.5pt; line-height: 8.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>Var.</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top; background-color: #8EB4E2">
    <TD STYLE="width: 38%; border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid">&nbsp;</TD>
    <TD STYLE="width: 8%; border-bottom: black 1pt solid; border-right: black 1pt solid; padding-top: 4.15pt; padding-left: 15.6pt; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>3Q21</B></FONT></TD>
    <TD STYLE="width: 9%; border-bottom: black 1pt solid; border-right: black 1pt solid; padding-top: 4.15pt; padding-left: 19.1pt; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>3Q20</B></FONT></TD>
    <TD STYLE="width: 7%; border-bottom: black 1pt solid; border-right: black 1pt solid; padding-top: 4.15pt; padding-right: 14.35pt; padding-left: 14.95pt; text-align: center; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>R$</B></FONT></TD>
    <TD STYLE="width: 7%; border-bottom: black 1pt solid; border-right: black 1pt solid; padding-top: 4.15pt; padding-left: 0.4pt; text-align: center; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>%</B></FONT></TD>
    <TD STYLE="width: 9%; border-bottom: black 1pt solid; border-right: black 1pt solid; padding-top: 4.15pt; padding-left: 17.95pt; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>9M21</B></FONT></TD>
    <TD STYLE="width: 8%; border-bottom: black 1pt solid; border-right: black 1pt solid; padding-top: 4.15pt; padding-left: 0.2in; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>9M20</B></FONT></TD>
    <TD STYLE="width: 8%; border-bottom: black 1pt solid; border-right: black 1pt solid; padding-top: 4.15pt; padding-right: 16.75pt; padding-left: 17pt; text-align: center; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>R$</B></FONT></TD>
    <TD STYLE="width: 6%; border-bottom: black 1pt solid; border-right: black 1pt solid; padding-top: 4.15pt; padding-left: 0.1pt; text-align: center; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>%</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 4.15pt; padding-left: 14.55pt; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Net income</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 2.6pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">468.6</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 2.65pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">421.6</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 2.6pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">47.0</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 2.7pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">11.1</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 2.9pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">1,738.4</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 2.85pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">141.8</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 2.9pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">1,596.6</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 2.9pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">1,126.0</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 4.15pt; padding-left: 14.55pt; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Income tax and social contribution</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 2.55pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">237.9</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 2.6pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">234.0</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 2.55pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">3.9</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 2.65pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">1.7</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 2.8pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">866.7</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 2.75pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">53.6</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 2.85pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">813.1</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 2.9pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">1,517.0</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 4.2pt; padding-left: 14.55pt; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Financial result</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.2pt; padding-right: 2.6pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">520.6</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.2pt; padding-right: 2.65pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">330.6</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.2pt; padding-right: 2.65pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">190.0</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.2pt; padding-right: 2.7pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">57.5</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.2pt; padding-right: 2.85pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">626.2</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.2pt; padding-right: 2.85pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">2,986.4</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.2pt; padding-right: 2.85pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">(2,360.2)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.2pt; padding-right: 2.85pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">(79.0)</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 4.15pt; padding-left: 14.55pt; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Other operating revenues (expenses), net</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 2.6pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">(2.7)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 2.6pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">(0.8)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 2.55pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">(1.9)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 2.7pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">237.5</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 2.8pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">(12.5)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 2.8pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">(113.3)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 2.85pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">100.8</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 2.9pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">(89.0)</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 4.15pt; padding-left: 3.45pt; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>(=) Adjusted EBIT*</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 2.5pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>1,224.4</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 2.55pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>985.4</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 2.6pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>239.0</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 2.65pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>24.3</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 2.8pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>3,218.8</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 2.8pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>3,068.5</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 2.85pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>150.3</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 2.85pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>4.9</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 4.2pt; padding-left: 14.55pt; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Depreciation and amortization</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.2pt; padding-right: 2.65pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">564.9</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.2pt; padding-right: 2.7pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">528.2</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.2pt; padding-right: 2.6pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">36.7</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.2pt; padding-right: 2.75pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">6.9</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.2pt; padding-right: 2.9pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">1,660.0</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.2pt; padding-right: 2.85pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">1,510.2</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.2pt; padding-right: 2.85pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">149.8</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.2pt; padding-right: 2.85pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">9.9</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 4.15pt; padding-left: 3.45pt; line-height: 8.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>(=) Adjusted EBITDA**</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 2.55pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>1,789.3</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 2.6pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>1,513.6</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 2.6pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>275.7</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 2.65pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>18.2</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 2.85pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>4,878.8</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 2.8pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>4,578.7</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 2.85pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>300.1</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 2.8pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>6.6</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 4.15pt; padding-left: 14.55pt; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">(%) Adjusted EBITDA margin</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 2.5pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">34.7</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 2.55pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">34.1</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 2.8pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">33.8</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 2.75pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">35.5</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD></TR>
  </TABLE>
<P STYLE="font: 7.5pt Arial, Helvetica, Sans-Serif; margin: 0.2pt 0 0"><B><I>&nbsp;</I></B></P>

<P STYLE="font: 7pt Arial, Helvetica, Sans-Serif; margin: 4.8pt 78.6pt 0 62.75pt; text-indent: -7.1pt"><I>* Adjusted EBIT corresponds
to net income before: (i) other operating revenues (expenses), net; (ii) financial result; and (iii) income tax and social contribution.</I></P>

<P STYLE="font: 7pt Arial, Helvetica, Sans-Serif; margin: 0 78.6pt 0 62.75pt; text-indent: -7.1pt"><I>** Adjusted EBITDA corresponds to
net income before: (i) other operating revenues (expenses), net; (ii) financial result; (iii) income tax and social contribution; and
(iv) depreciation and amortization expenses.</I></P>


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    <DIV STYLE="margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: right; width: 100%">Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->14<!-- Field: /Sequence --> of 87&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: 85%"><P STYLE="text-align: left; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">ITR - Quarterly Information Form - 9/30/2021 - CIA SANEAMENTO BASICO EST SAO PAULO</P></TD><TD STYLE="text-align: center; width: 15%"><P STYLE="text-align: right; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">Version : 1</P></TD></TR></TABLE><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B>Comments on the Company&rsquo;s Performance</B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 9.5pt Georgia, Times, Serif; margin: 0.5pt 0 0">&nbsp;</P>

<P STYLE="font: 10pt/103% Arial MT,sans-serif; margin: 4.7pt 20.9pt 0 55.65pt; text-align: justify">The net operating revenue, which considers
construction revenue, totaled R$ 5,153.9 million in 3Q21, up by 16.1% over 3Q20.</P>

<P STYLE="font: 10pt/103% Arial MT,sans-serif; margin: 6.1pt 21.05pt 0 55.65pt; text-align: justify">Costs and expenses, which consider
construction costs, totaled R$ 3,933.5 million, up by 13.8% over 3Q20.</P>

<P STYLE="font: 10pt/103% Arial MT,sans-serif; margin: 6.05pt 20.95pt 0 55.65pt; text-align: justify">Adjusted EBIT, of R$ 1224.4 million,
rose by 24.3% over the R$ 985.4 million recorded in 3Q20.</P>

<P STYLE="font: 10pt/103% Arial MT,sans-serif; margin: 6.1pt 21pt 0 55.65pt; text-align: justify">Adjusted EBITDA, of R$ 1,789.3 million,
increased by 18.2% over the R$ 1,513.6 million recorded in 3Q20 (R$ 6,721.9 million in the last 12 months).</P>

<P STYLE="font: 10pt Arial MT,sans-serif; margin: 6.1pt 0 0 55.65pt">Adjusted EBITDA margin was 34.7% in 3Q21, compared to 34.1% in 3Q20
(34.8% in the last 12 months).</P>

<P STYLE="font: 10pt/103% Arial MT,sans-serif; margin: 6.5pt 21pt 0 55.65pt; text-align: justify">Excluding the effects of revenue and
construction costs, the adjusted EBITDA margin was 44.4% in 3Q21, compared to 44.0% in 3Q20 (44.3% in the last 12 months).</P>

<P STYLE="font: 10pt Arial MT,sans-serif; margin: 6.05pt 0 0 55.65pt">The Company recorded a net income of R$ 468.6 million in 3Q21, compared
to R$ 421.6 million in 3Q20.</P>

<P STYLE="font: 10.5pt Arial MT,sans-serif; margin: 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: bold 14pt Arial, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 0; color: navy"><TR STYLE="vertical-align: top">
<TD STYLE="width: 37.65pt"></TD><TD STYLE="width: 18pt">2.</TD><TD>Revenue from sanitation services</TD></TR></TABLE>

<P STYLE="font: 10pt/103% Arial MT,sans-serif; margin: 12.4pt 21pt 0 55.65pt; text-align: justify">The gross operating revenue from sanitation
services, which excludes construction revenue, totaled R$ 4,284.9 million in 3Q21, an increase of R$ 645.8 million (+17.7%) over the R$
3,639.1 million recorded in 3Q20.</P>

<P STYLE="font: 10pt Arial MT,sans-serif; margin: 6.15pt 0 0 55.65pt">The main factors that led to the increase were:</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Georgia, Times, Serif; margin-top: 6pt; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 55.7pt"></TD><TD STYLE="width: 14.15pt"><FONT STYLE="font-family: Symbol; font-size: 10pt">&middot;</FONT></TD><TD><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 10pt">Average tariff adjustment of 7.0% since May 2021;</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Georgia, Times, Serif; margin-top: 5.95pt; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 55.7pt"></TD><TD STYLE="width: 14.15pt"><FONT STYLE="font-family: Symbol; font-size: 10pt">&middot;</FONT></TD><TD><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 10pt">Tariff adjustment of 3.4% since August 2020;</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/102% Georgia, Times, Serif; margin-top: 5.9pt; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 55.75pt"></TD><TD STYLE="width: 14.1pt"><FONT STYLE="font-family: Symbol; font-size: 10pt">&middot;</FONT></TD><TD STYLE="padding-right: 21.05pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 10pt">Increase of 3.7% in the billed volume,
excluding the municipality of Mau&aacute; (served in the wholesale basis in 3Q20) and the segment of the Residential Social and Residential
Favela categories exempt from paying the tariff in 3Q20;</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Georgia, Times, Serif; margin-top: 5.75pt; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 55.7pt"></TD><TD STYLE="width: 14.15pt"><FONT STYLE="font-family: Symbol; font-size: 10pt">&middot;</FONT></TD><TD><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 10pt">R$ 24.7 million in 3Q21, from the operation in the municipality of
Mau&aacute;; and</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/103% Georgia, Times, Serif; margin-top: 5.9pt; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 55.75pt"></TD><TD STYLE="width: 14.1pt"><FONT STYLE="font-family: Symbol; font-size: 10pt">&middot;</FONT></TD><TD STYLE="text-align: justify; padding-right: 20.95pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 10pt">Billing from the
Commercial, Industrial, and Public categories (non-Residential) higher than that of the Residential category, which increased the average
tariff given that the tariffs of the non-Residential categories are higher.</FONT></TD></TR></TABLE>

<P STYLE="font: 15pt Arial MT,sans-serif; margin: 0.3pt 0 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: bold 14pt Arial, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 0; color: navy"><TR STYLE="vertical-align: top">
<TD STYLE="width: 37.65pt"></TD><TD STYLE="width: 18pt">3.</TD><TD>Construction revenue</TD></TR></TABLE>

<P STYLE="font: 10pt Arial MT,sans-serif; margin: 11.95pt 0 0 55.7pt">Construction revenue increased by R$ 132.7 million (+12.6%) in 3Q21,
due to higher investments made.</P>


<!-- Field: Page; Sequence: 17 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: right; width: 100%">Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->15<!-- Field: /Sequence --> of 87&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: 85%"><P STYLE="text-align: left; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">ITR - Quarterly Information Form - 9/30/2021 - CIA SANEAMENTO BASICO EST SAO PAULO</P></TD><TD STYLE="text-align: center; width: 15%"><P STYLE="text-align: right; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">Version : 1</P></TD></TR></TABLE><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B>Comments on the Company&rsquo;s Performance</B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 9.5pt Georgia, Times, Serif; margin: 0.2pt 0 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: bold 14pt Arial, Helvetica, Sans-Serif; margin-top: 4.55pt; margin-bottom: 0; color: navy"><TR STYLE="vertical-align: top">
<TD STYLE="width: 37.65pt"></TD><TD STYLE="width: 18pt">4.</TD><TD>Billed volume</TD></TR></TABLE>

<P STYLE="font: 10pt/103% Arial MT,sans-serif; margin: 12.45pt 20.9pt 0 55.7pt; text-align: justify">The following tables show the water
and sewage billed volumes, on a quarter-on-quarter and year-on-year basis, by customer category and region. Mau&aacute; volumes and the
exemption of the &#8220;Residential Social&#8221; and &#8220;Residential Favela&#8221; categories are presented individually.</P>

<P STYLE="font: 10pt Arial MT,sans-serif; margin: 0.2pt 0 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 11pt Georgia, Times, Serif; border-collapse: collapse">
  <TR STYLE="vertical-align: top; background-color: #95B3D7">
    <TD COLSPAN="10" STYLE="border: black 1pt solid; padding-right: 88.25pt; padding-left: 88.55pt; text-align: center; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>WATER AND SEWAGE BILLED VOLUME </B></FONT><B><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 6pt">(1)</FONT></B><B><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt">&nbsp;&nbsp;BY CUSTOMER CATEGORY - million m</FONT></B><B><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 6pt">3</FONT></B></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid">&nbsp;</TD>
    <TD COLSPAN="3" STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 55.75pt; padding-left: 56.2pt; text-align: center; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Water</B></FONT></TD>
    <TD COLSPAN="3" STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 52.3pt; padding-left: 52.65pt; text-align: center; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Sewage</B></FONT></TD>
    <TD COLSPAN="3" STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-left: 39.25pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Water + Sewage</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top; background-color: #DCE6F1">
    <TD STYLE="width: 30%; border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-left: 3.45pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Category</B></FONT></TD>
    <TD STYLE="width: 8%; border-bottom: black 1pt solid; border-right: black 1pt solid; padding-left: 13.15pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>3Q21</B></FONT></TD>
    <TD STYLE="width: 8%; border-bottom: black 1pt solid; border-right: black 1pt solid; padding-left: 13.15pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>3Q20</B></FONT></TD>
    <TD STYLE="width: 7%; border-bottom: black 1pt solid; border-right: black 1pt solid; padding-left: 7.6pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Var. %</B></FONT></TD>
    <TD STYLE="width: 8%; border-bottom: black 1pt solid; border-right: black 1pt solid; padding-left: 13.1pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>3Q21</B></FONT></TD>
    <TD STYLE="width: 8%; border-bottom: black 1pt solid; border-right: black 1pt solid; padding-left: 13.6pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>3Q20</B></FONT></TD>
    <TD STYLE="width: 7%; border-bottom: black 1pt solid; border-right: black 1pt solid; padding-left: 7.6pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Var. %</B></FONT></TD>
    <TD STYLE="width: 8%; border-bottom: black 1pt solid; border-right: black 1pt solid; padding-left: 13.1pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>3Q21</B></FONT></TD>
    <TD STYLE="width: 8%; border-bottom: black 1pt solid; border-right: black 1pt solid; padding-left: 13.1pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>3Q20</B></FONT></TD>
    <TD STYLE="width: 8%; border-bottom: black 1pt solid; border-right: black 1pt solid; padding-left: 10.1pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Var. %</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-left: 3.45pt; line-height: 9.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Residential</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.85pt; text-align: right; line-height: 9.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">457.5</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">444.1</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.9pt; text-align: right; line-height: 9.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">3.0</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">400.7</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">387.4</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.9pt; text-align: right; line-height: 9.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">3.4</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">858.2</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.9pt; text-align: right; line-height: 9.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">831.5</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">3.2</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-left: 3.45pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Commercial</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.9pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">42.1</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">39.4</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.9pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6.9</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">40.1</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">37.4</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.9pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">7.2</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">82.2</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.9pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">76.8</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">7.0</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-left: 3.45pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Industrial</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.9pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">8.3</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">7.8</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.9pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6.4</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">9.5</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">8.9</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.9pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6.7</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">17.8</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.9pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">16.7</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6.6</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-left: 3.45pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Public</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.9pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">9.8</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">8.4</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.9pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">16.7</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">8.6</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">7.5</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">14.7</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">18.4</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">15.9</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">15.7</FONT></TD></TR>
  <TR STYLE="vertical-align: top; background-color: #F1F1F1">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-left: 3.45pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Total retail</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>517.7</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>499.7</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>3.6</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>458.9</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>441.2</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>4.0</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>976.6</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>940.9</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>3.8</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-left: 3.45pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Wholesale </FONT><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 6pt">(3)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">12.2</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.1pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">12.9</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">(5.4)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">3.9</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">3.5</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">11.4</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">16.1</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">16.4</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">(1.8)</FONT></TD></TR>
  <TR STYLE="vertical-align: top; background-color: #F1F1F1">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-left: 3.45pt; line-height: 9.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Subtotal</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>529.9</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>512.6</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>3.4</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>462.8</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>444.7</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>4.1</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>992.7</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>957.3</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>3.7</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-left: 3.45pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Mau&aacute; </FONT><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 6pt">(4)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">5.2</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">7.9</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">(34.2)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.9pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>-</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">5.2</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">7.9</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.1pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">(34.2)</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-left: 3.45pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Residential Social/Favela </FONT><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 6pt">(5)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.9pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">17.9</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">(100.0)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">13.9</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">(100.0)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">31.8</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.1pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">(100.0)</FONT></TD></TR>
  <TR STYLE="vertical-align: top; background-color: #F1F1F1">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-left: 3.45pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Total</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>535.1</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>538.4</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.9pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>(0.6)</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>462.8</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>458.6</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>0.9</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>997.9</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>997.0</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>0.1</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid">&nbsp;</TD>
    <TD COLSPAN="3" STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 55.75pt; padding-left: 56.2pt; text-align: center; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Water</B></FONT></TD>
    <TD COLSPAN="3" STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 52.3pt; padding-left: 52.65pt; text-align: center; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Sewage</B></FONT></TD>
    <TD COLSPAN="3" STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-left: 39.25pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Water + Sewage</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top; background-color: #DCE6F1">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-left: 3.45pt; line-height: 9.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Category</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-left: 12.2pt; line-height: 9.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>9M21</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-left: 12.15pt; line-height: 9.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>9M20</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-left: 7.6pt; line-height: 9.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Var. %</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-left: 12.15pt; line-height: 9.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>9M21</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-left: 12.65pt; line-height: 9.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>9M20</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-left: 7.6pt; line-height: 9.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Var. %</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-left: 12.15pt; line-height: 9.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>9M21</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-left: 12.15pt; line-height: 9.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>9M20</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-left: 10.1pt; line-height: 9.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Var. %</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-left: 3.45pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Residential</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1,394.2</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1,330.0</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">4.8</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1,218.3</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1,157.4</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.9pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">5.3</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2,612.5</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2,487.4</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">5.0</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-left: 3.45pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Commercial</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">123.1</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">121.8</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1.1</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">117.1</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">116.2</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">0.8</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">240.2</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.9pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">238.0</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">0.9</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-left: 3.45pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Industrial</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">25.0</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">23.1</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">8.2</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">27.3</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">27.2</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">0.4</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">52.3</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.9pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">50.3</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">4.0</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-left: 3.45pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Public</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">26.9</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">27.8</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">(3.2)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">23.8</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">24.7</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">(3.6)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">50.7</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">52.5</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">(3.4)</FONT></TD></TR>
  <TR STYLE="vertical-align: top; background-color: #F1F1F1">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-left: 3.45pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Total retail</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>1,569.2</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>1,502.7</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>4.4</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>1,386.5</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>1,325.5</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>4.6</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>2,955.7</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>2,828.2</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>4.5</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-left: 3.45pt; line-height: 9.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Wholesale </FONT><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 6pt">(3)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.9pt; text-align: right; line-height: 9.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">37.7</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">37.5</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">0.5</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">11.4</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">11.0</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.9pt; text-align: right; line-height: 9.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">3.6</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">49.1</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.9pt; text-align: right; line-height: 9.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">48.5</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1.2</FONT></TD></TR>
  <TR STYLE="vertical-align: top; background-color: #F1F1F1">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-left: 3.45pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Subtotal</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>1,606.9</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>1,540.2</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>4.3</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>1,397.9</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>1,336.5</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>4.6</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>3,004.8</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>2,876.7</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>4.5</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-left: 3.45pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Mau&aacute; </FONT><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 6pt">(4)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">16.3</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">26.0</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">(37.3)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.9pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">16.3</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">26.0</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.1pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">(37.3)</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-left: 3.45pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Residential Social/Favela </FONT><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 6pt">(5)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.9pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">44.4</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">(100.0)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">34.2</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">(100.0)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">78.6</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.1pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">(100.0)</FONT></TD></TR>
  <TR STYLE="vertical-align: top; background-color: #F1F1F1">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-left: 3.45pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Total</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>1,623.2</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>1,610.6</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>0.8</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>1,397.9</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>1,370.7</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>2.0</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>3,021.1</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>2,981.3</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>1.3</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top; background-color: #95B3D7">
    <TD COLSPAN="10" STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-right: 88.2pt; padding-left: 88.55pt; text-align: center; line-height: 9.3pt"><B>WATER AND SEWAGE BILLED VOLUME <FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 6pt">(1) </FONT></B><B><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt">BY REGION - million m</FONT></B><B><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 6pt">3</FONT></B></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid">&nbsp;</TD>
    <TD COLSPAN="3" STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 55.75pt; padding-left: 56.2pt; text-align: center; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Water</B></FONT></TD>
    <TD COLSPAN="3" STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 52.3pt; padding-left: 52.65pt; text-align: center; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Sewage</B></FONT></TD>
    <TD COLSPAN="3" STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-left: 39.25pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Water + Sewage</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top; background-color: #DCE6F1">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-left: 3.45pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Region</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-left: 13.15pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>3Q21</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-left: 13.15pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>3Q20</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-left: 7.6pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Var. %</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-left: 13.1pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>3Q21</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-left: 13.6pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>3Q20</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-left: 7.6pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Var. %</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-left: 13.1pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>3Q21</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-left: 13.1pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>3Q20</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-left: 10.1pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Var. %</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-left: 3.45pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Metropolitan</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">348.9</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">331.7</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">5.2</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">309.6</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">294.0</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">5.3</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">658.5</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.9pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">625.7</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">5.2</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-left: 3.45pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Regional </FONT><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 6pt">(2)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.9pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">168.8</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">168.0</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">0.5</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">149.3</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">147.2</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.9pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1.4</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">318.1</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.9pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">315.2</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">0.9</FONT></TD></TR>
  <TR STYLE="vertical-align: top; background-color: #F1F1F1">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-left: 3.45pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Total retail</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>517.7</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>499.7</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>3.6</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>458.9</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>441.2</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>4.0</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>976.6</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>940.9</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>3.8</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-left: 3.45pt; line-height: 9.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Wholesale </FONT><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 6pt">(3)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">12.2</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.1pt; text-align: right; line-height: 9.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">12.9</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">(5.4)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">3.9</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">3.5</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">11.4</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">16.1</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">16.4</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">(1.8)</FONT></TD></TR>
  <TR STYLE="vertical-align: top; background-color: #F1F1F1">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-left: 3.45pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Subtotal</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>529.9</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>512.6</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>3.4</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>462.8</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>444.7</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>4.1</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>992.7</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>957.3</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>3.7</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-left: 3.45pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Mau&aacute; </FONT><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 6pt">(4)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">5.2</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">7.9</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">(34.2)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.9pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">5.2</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">7.9</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">(34.2)</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-left: 3.45pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Residential Social/Favela </FONT><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 6pt">(5)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.9pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">17.9</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">(100.0)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">13.9</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">(100.0)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">31.8</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.1pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">(100.0)</FONT></TD></TR>
  <TR STYLE="vertical-align: top; background-color: #F1F1F1">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-left: 3.45pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Total</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>535.1</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>538.4</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.9pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>(0.6)</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>462.8</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>458.6</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>0.9</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>997.9</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>997.0</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>0.1</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid">&nbsp;</TD>
    <TD COLSPAN="3" STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 55.75pt; padding-left: 56.2pt; text-align: center; line-height: 9.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Water</B></FONT></TD>
    <TD COLSPAN="3" STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 52.3pt; padding-left: 52.65pt; text-align: center; line-height: 9.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Sewage</B></FONT></TD>
    <TD COLSPAN="3" STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-left: 39.25pt; line-height: 9.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Water + Sewage</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top; background-color: #DCE6F1">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-left: 3.45pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Region</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-left: 12.2pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>9M21</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-left: 12.15pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>9M20</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-left: 7.6pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Var. %</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-left: 12.15pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>9M21</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-left: 12.65pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>9M20</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-left: 7.6pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Var. %</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-left: 12.15pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>9M21</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-left: 12.15pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>9M20</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-left: 10.1pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Var. %</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-left: 3.45pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Metropolitan</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1,060.3</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">996.1</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6.4</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">939.5</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">881.4</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6.6</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1,999.8</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.9pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1,877.5</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6.5</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-left: 3.45pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Regional </FONT><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 6pt">(2)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.9pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">508.9</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">506.6</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">0.5</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">447.0</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">444.1</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.9pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">0.7</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">955.9</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.9pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">950.7</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">0.5</FONT></TD></TR>
  <TR STYLE="vertical-align: top; background-color: #F1F1F1">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-left: 3.45pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Total retail</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>1,569.2</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>1,502.7</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>4.4</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>1,386.5</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>1,325.5</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>4.6</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>2,955.7</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>2,828.2</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>4.5</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-left: 3.45pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Wholesale </FONT><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 6pt">(3)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.9pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">37.7</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">37.5</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">0.5</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">11.4</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">11.0</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.9pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">3.6</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">49.1</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.9pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">48.5</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1.2</FONT></TD></TR>
  <TR STYLE="vertical-align: top; background-color: #F1F1F1">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-left: 3.45pt; line-height: 9.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Subtotal</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>1,606.9</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>1,540.2</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>4.3</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>1,397.9</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>1,336.5</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>4.6</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>3,004.8</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>2,876.7</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>4.5</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-left: 3.45pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Mau&aacute; </FONT><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 6pt">(4)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">16.3</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">26.0</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">(37.3)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.9pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">16.3</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">26.0</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.1pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">(37.3)</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-left: 3.45pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Residential Social/Favela </FONT><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 6pt">(5)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.9pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">44.4</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">(100.0)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">34.2</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">(100.0)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">-</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">78.6</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.1pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">(100.0)</FONT></TD></TR>
  <TR STYLE="vertical-align: top; background-color: #F1F1F1">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-left: 3.45pt; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Total</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>1,623.2</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>1,610.6</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>0.8</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>1,397.9</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>1,370.7</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 2.95pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>2.0</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>3,021.1</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>2,981.3</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 3.05pt; text-align: right; line-height: 9.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>1.3</B></FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Arial MT,sans-serif; margin: 0.4pt 0 0">&nbsp;</P>

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<TD STYLE="width: 36.35pt"></TD><TD STYLE="width: 12.05pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><I>(1)</I></FONT></TD><TD><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><I>Unaudited by external auditors</I></FONT></TD></TR></TABLE>

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<TD STYLE="width: 34.4pt"></TD><TD STYLE="width: 12pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><I>(2)</I></FONT></TD><TD><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><I>Including coastal and interior regions</I></FONT></TD></TR></TABLE>

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<TD STYLE="width: 34.4pt"></TD><TD STYLE="width: 12.05pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><I>(3)</I></FONT></TD><TD><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><I>Wholesale includes volumes of reuse water and non-domestic
sewage</I></FONT></TD></TR></TABLE>

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<TD STYLE="width: 34.4pt"></TD><TD STYLE="width: 12pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><I>(4)</I></FONT></TD><TD><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><I>Billed volume in the wholesale segment in 2020 and in the
retail segment in 2021</I></FONT></TD></TR></TABLE>

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<TD STYLE="width: 34.4pt"></TD><TD STYLE="width: 12pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><I>(5)</I></FONT></TD><TD><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><I>Volume exempt of payment in 3Q20/9M20</I></FONT></TD></TR></TABLE>


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<TD STYLE="width: 37.65pt"></TD><TD STYLE="width: 18pt">5.</TD><TD>Costs, administrative &amp; selling expenses and construction costs</TD></TR></TABLE>

<P STYLE="font: 10pt/103% Arial MT,sans-serif; margin: 12.45pt 26pt 0 55.7pt">Costs, administrative and selling expenses, and construction
costs increased by R$ 477.3 million in 3Q21 (+13.8%). Excluding construction costs, the increase was R$ 347.5 million (+14.3%). Costs,
administrative and selling expenses, and construction costs as a percentage of net revenue was 76.3% in 3Q21, compared to 77.9% in 3Q20.</P>

<P STYLE="font: 8.5pt Arial MT,sans-serif; margin: 0.15pt 0 0">&nbsp;</P>

<P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 0.15pt; margin-left: 0; text-align: right"><B><I>R$ million</I></B></P>

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    <TD STYLE="border-top: black 1pt solid; border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="border-top: black 1pt solid; border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-left: 25.75pt; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>Var.</B></FONT></TD>
    <TD STYLE="border-top: black 1pt solid; border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-top: black 1pt solid; border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="border-top: black 1pt solid; border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-left: 22.05pt; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>Var.</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top; background-color: #8EB4E2">
    <TD STYLE="width: 42%; border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid">&nbsp;</TD>
    <TD STYLE="width: 7%; border-bottom: black 1pt solid; border-right: black 1pt solid; padding-top: 4.15pt; padding-left: 12.1pt; line-height: 8.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>3Q21</B></FONT></TD>
    <TD STYLE="width: 8%; border-bottom: black 1pt solid; border-right: black 1pt solid; padding-top: 4.15pt; padding-left: 15.6pt; line-height: 8.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>3Q20</B></FONT></TD>
    <TD STYLE="width: 7%; border-bottom: black 1pt solid; border-right: black 1pt solid; padding-top: 4.15pt; padding-right: 14.2pt; padding-left: 15.05pt; text-align: center; line-height: 8.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>R$</B></FONT></TD>
    <TD STYLE="width: 7%; border-bottom: black 1pt solid; border-right: black 1pt solid; padding-top: 4.15pt; padding-left: 0.8pt; text-align: center; line-height: 8.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>%</B></FONT></TD>
    <TD STYLE="width: 8%; border-bottom: black 1pt solid; border-right: black 1pt solid; padding-top: 4.15pt; padding-left: 14.65pt; line-height: 8.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>9M21</B></FONT></TD>
    <TD STYLE="width: 8%; border-bottom: black 1pt solid; border-right: black 1pt solid; padding-top: 4.15pt; padding-left: 14.65pt; line-height: 8.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>9M20</B></FONT></TD>
    <TD STYLE="width: 7%; border-bottom: black 1pt solid; border-right: black 1pt solid; padding-top: 4.15pt; padding-right: 0.2in; padding-left: 14.9pt; text-align: center; line-height: 8.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>R$</B></FONT></TD>
    <TD STYLE="width: 6%; border-bottom: black 1pt solid; border-right: black 1pt solid; padding-top: 4.15pt; padding-left: 0.5pt; text-align: center; line-height: 8.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>%</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 3.4pt; padding-left: 3.45pt; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Salaries and payroll charges and Pension plan obligations</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 2.45pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">681.2</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 2.55pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">669.4</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 2.45pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">11.8</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 2.45pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">1.8</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 2.6pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">1,981.0</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 2.65pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">2,005.6</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 2.6pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">(24.6)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 2.6pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">(1.2)</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 3.4pt; padding-left: 3.45pt; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">General supplies</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 2.4pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">79.3</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 2.45pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">63.5</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 2.45pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">15.8</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 2.45pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">24.9</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 2.6pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">225.6</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 2.6pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">186.7</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 2.55pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">38.9</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 2.55pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">20.8</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 3.4pt; padding-left: 3.45pt; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Treatment supplies</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 2.4pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">82.1</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 2.45pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">78.9</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 2.45pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">3.2</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 2.45pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">4.1</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 2.6pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">263.4</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 2.6pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">253.9</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 2.55pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">9.5</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 2.55pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">3.7</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 3.45pt; padding-left: 3.45pt; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Services</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 2.45pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">522.0</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 2.55pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">457.6</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 2.45pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">64.4</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 2.45pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">14.1</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 2.6pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">1,506.1</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 2.65pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">1,323.7</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 2.65pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">182.4</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 2.55pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">13.8</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 3.45pt; padding-left: 3.45pt; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Electricity</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 2.45pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">375.0</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 2.55pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">311.0</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 2.45pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">64.0</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 2.45pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">20.6</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 2.6pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">1,074.5</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 2.65pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">915.9</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 2.65pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">158.6</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 2.55pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">17.3</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 3.45pt; padding-left: 3.45pt; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">General expenses</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 2.45pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">327.4</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 2.55pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">224.4</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 2.5pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">103.0</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 2.45pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">45.9</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 2.6pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">912.1</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 2.6pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">721.3</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 2.65pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">190.8</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 2.55pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">26.5</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 3.4pt; padding-left: 3.45pt; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Tax expenses</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 2.4pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">23.5</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 2.45pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">18.4</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 2.45pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">5.1</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 2.45pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">27.7</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 2.55pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">58.6</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 2.55pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">52.1</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 2.55pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">6.5</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 2.55pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">12.5</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 3.4pt; padding-left: 3.45pt; line-height: 8.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>Subtotal</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 2.45pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>2,090.5</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 2.55pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>1,823.2</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 2.5pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>267.3</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 2.45pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>14.7</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 2.6pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>6,021.3</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 2.65pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>5,459.2</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 2.65pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>562.1</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 2.55pt; text-align: right; line-height: 8.35pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>10.3</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 3.4pt; padding-left: 3.45pt; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Depreciation and amortization</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 2.45pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">564.9</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 2.55pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">528.2</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 2.45pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">36.7</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 2.45pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">6.9</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 2.6pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">1,660.0</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 2.65pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">1,510.2</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 2.65pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">149.8</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.4pt; padding-right: 2.55pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">9.9</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 3.45pt; padding-left: 3.45pt; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Allowance for doubtful accounts</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 2.45pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">118.6</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 2.45pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">75.1</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 2.45pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">43.5</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 2.45pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">57.9</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 2.6pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">383.7</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 2.6pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">349.9</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 2.55pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">33.8</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 2.55pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">9.7</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 3.45pt; padding-left: 3.45pt; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>Subtotal</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 2.45pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>683.5</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 2.55pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>603.3</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 2.45pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>80.2</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 2.45pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>13.3</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 2.6pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>2,043.7</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 2.65pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>1,860.1</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 2.65pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">183.6</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 2.55pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>9.9</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 3.45pt; padding-left: 3.45pt; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>Costs, administrative and selling expenses</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 2.45pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>2,774.0</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 2.55pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>2,426.5</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 2.5pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>347.5</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 2.45pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>14.3</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 2.6pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>8,065.0</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 2.65pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>7,319.3</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 2.65pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>745.7</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 2.55pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>10.2</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 4.15pt; padding-left: 3.45pt; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Construction costs</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 2.45pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">1,159.5</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 2.55pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">1,029.7</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 2.5pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">129.8</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 2.45pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">12.6</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 2.6pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">3,159.7</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 2.65pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">2,535.2</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 2.65pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">624.5</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 2.55pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">24.6</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 2.05pt; padding-left: 3.45pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>Costs, adm &amp; selling expenses and construction costs</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2.05pt; padding-right: 2.45pt; text-align: right"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>3,933.5</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2.05pt; padding-right: 2.55pt; text-align: right"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>3,456.2</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2.05pt; padding-right: 2.5pt; text-align: right"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>477.3</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2.05pt; padding-right: 2.45pt; text-align: right"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>13.8</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2.05pt; padding-right: 2.6pt; text-align: right"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>11,224.7</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2.05pt; padding-right: 2.65pt; text-align: right"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>9,854.5</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2.05pt; padding-right: 2.65pt; text-align: right"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>1,370.2</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2.05pt; padding-right: 2.55pt; text-align: right"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>13.9</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 4.15pt; padding-left: 3.45pt; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">% of net revenue</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 2.4pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">76.3</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 2.5pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">77.9</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 2.65pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">77.8</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.15pt; padding-right: 2.6pt; text-align: right; line-height: 8.3pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">76.3</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD></TR>
  </TABLE>
<P STYLE="font: 9pt Arial, Helvetica, Sans-Serif; margin: 0"><B><I>&nbsp;</I></B></P>

<P STYLE="font: 7.5pt Arial, Helvetica, Sans-Serif; margin: 0.5pt 0 0"><B><I>&nbsp;</I></B></P>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 0 0 0 41.5pt; color: navy"><B>Salaries and payroll charges and Pension plan
obligations</B></P>

<P STYLE="font: 9.5pt Arial, Helvetica, Sans-Serif; margin: 0.5pt 0 0"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Arial MT,sans-serif; margin: 0 0 0 41.5pt">The R$ 11.8 million increase (+1.8%) recorded in 3Q21 was due to:</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/102% Georgia, Times, Serif; margin-top: 6pt; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 41.6pt"></TD><TD STYLE="width: 14.1pt"><FONT STYLE="font-family: Symbol; font-size: 10pt">&middot;</FONT></TD><TD STYLE="padding-right: 28.05pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 10pt">R$ 13.7 million in health care expenses,
mainly because of lower demand for medical services in 3Q20, due to the social distancing measures adopted as a way to control the COVID-19
pandemic; and</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/102% Georgia, Times, Serif; margin-top: 5.7pt; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 41.6pt"></TD><TD STYLE="width: 14.1pt"><FONT STYLE="font-family: Symbol; font-size: 10pt">&middot;</FONT></TD><TD STYLE="padding-right: 28pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 10pt">R$ 8.1 million in overtime expenses, due
to a lower realization in 3Q20 because of the social distancing measures adopted.</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/103% Arial MT,sans-serif; margin: 6.2pt 26pt 0 41.6pt">The increases above were partially offset by the R$ 12.6 million
decrease in pension plans expenses, due to changes in the actuarial assumptions.</P>

<P STYLE="font: 15pt Arial MT,sans-serif; margin: 0.35pt 0 0">&nbsp;</P>

<P STYLE="font: bold 10pt Arial, Helvetica, Sans-Serif; margin: 0.05pt 0 0 41.5pt; color: navy">General supplies</P>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 0.45pt 0 0"><B>&nbsp;</B></P>

<P STYLE="font: 10pt/103% Arial MT,sans-serif; margin: 0 26pt 0 41.6pt">The R$ 15.8 million increase (+24.9%) mainly resulted from: (i)
R$ 7.3 million with the maintenance of water and sewage connections and networks; and (ii) R$ 6.0 million with fuels and lubricants.</P>

<P STYLE="font: 15pt Arial MT,sans-serif; margin: 0.4pt 0 0">&nbsp;</P>

<P STYLE="font: bold 10pt Arial, Helvetica, Sans-Serif; margin: 0 0 0 41.5pt; color: navy">Services</P>

<P STYLE="font: 10.5pt Arial, Helvetica, Sans-Serif; margin: 0.35pt 0 0"><B>&nbsp;</B></P>

<P STYLE="font: 10pt/103% Arial MT,sans-serif; margin: 0 26pt 0 41.5pt">Service expenses totaled R$ 522.0 million, an increase of R$ 64.4
million (+14.1%) over the R$ 457.6 million recorded in 3Q20. The main increases were:</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Georgia, Times, Serif; margin-top: 5.6pt; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 41.55pt"></TD><TD STYLE="width: 14.15pt"><FONT STYLE="font-family: Symbol; font-size: 10pt">&middot;</FONT></TD><TD><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 10pt">R$ 21.3 million paid to technical services, especially computer technical
support;</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Georgia, Times, Serif; margin-top: 5.95pt; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 41.55pt"></TD><TD STYLE="width: 14.15pt"><FONT STYLE="font-family: Symbol; font-size: 10pt">&middot;</FONT></TD><TD><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 10pt">R$ 16.4 million with the maintenance of water and sewage systems;</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Georgia, Times, Serif; margin-top: 5.9pt; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 41.55pt"></TD><TD STYLE="width: 14.15pt"><FONT STYLE="font-family: Symbol; font-size: 10pt">&middot;</FONT></TD><TD><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 10pt">R$ 12.8 million with paving and replacing of sidewalks; and</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Georgia, Times, Serif; margin-top: 5.9pt; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 41.55pt"></TD><TD STYLE="width: 14.15pt"><FONT STYLE="font-family: Symbol; font-size: 10pt">&middot;</FONT></TD><TD><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 10pt">R$ 9.5 million with network maintenance and water and sewage connections.</FONT></TD></TR></TABLE>


<!-- Field: Page; Sequence: 19 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: right; width: 100%">Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->17<!-- Field: /Sequence --> of 87&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: 85%"><P STYLE="text-align: left; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">ITR - Quarterly Information Form - 9/30/2021 - CIA SANEAMENTO BASICO EST SAO PAULO</P></TD><TD STYLE="text-align: center; width: 15%"><P STYLE="text-align: right; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">Version : 1</P></TD></TR></TABLE><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B>Comments on the Company&rsquo;s Performance</B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 9.5pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: bold 10pt Arial, Helvetica, Sans-Serif; margin: 4.7pt 0 0 41.5pt; color: navy">Electricity</P>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 0"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Arial MT,sans-serif; margin: 0 27.95pt 0 41.5pt; text-align: justify">Electricity expenses totaled R$ 375.0 million
in 3Q21, an increase of R$ 64.0 million (+20.6%) over the R$ 311.0 million recorded in 3Q20. The Free Market Tariffs (ACL) accounted for
53.2% of total expenses in 3Q21 (49.2% in 3Q20), while the Regulated Market Tariffs (ACR) accounted for 46.8% (50.8% in 3Q20).</P>

<P STYLE="font: 10pt Arial MT,sans-serif; margin: 6pt 0 0 41.5pt">The main factors that contributed to this variation were:</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/102% Georgia, Times, Serif; margin-top: 6pt; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 41.6pt"></TD><TD STYLE="width: 14.1pt"><FONT STYLE="font-family: Symbol; font-size: 10pt">&middot;</FONT></TD><TD STYLE="padding-right: 28.1pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 10pt">Average decrease of 2.2% in ACL prices
(includes Grid Market Tariffs - TUSD), with an 18.3% rise in consumption; and</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Georgia, Times, Serif; margin-top: 5.75pt; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 41.55pt"></TD><TD STYLE="width: 14.15pt"><FONT STYLE="font-family: Symbol; font-size: 10pt">&middot;</FONT></TD><TD><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 10pt">Average increase of 30.6% in ACR tariffs, with a 14.4% decrease in
consumption.</FONT></TD></TR></TABLE>

<P STYLE="font: 15.5pt Arial MT,sans-serif; margin: 0.1pt 0 0">&nbsp;</P>

<P STYLE="font: bold 10pt Arial, Helvetica, Sans-Serif; margin: 0 0 0 41.5pt; color: navy">General expenses</P>

<P STYLE="font: 9.5pt Arial, Helvetica, Sans-Serif; margin: 0.5pt 0 0"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Arial MT,sans-serif; margin: 0 0 0 41.5pt">General expenses totaled R$ 327.4 million in 3Q21, an increase of R$ 103.0
million (+45.9%) over the R$ 224.4 million recorded in 3Q20, mainly due to:</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Georgia, Times, Serif; margin-top: 6.05pt; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 41.5pt"></TD><TD STYLE="width: 14.2pt"><FONT STYLE="font-family: Symbol; font-size: 10pt">&middot;</FONT></TD><TD><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 10pt">Higher expenses with lawsuits in 3Q21, of R$ 53.3 million; and</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/102% Georgia, Times, Serif; margin-top: 5.9pt; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 41.6pt"></TD><TD STYLE="width: 14.1pt"><FONT STYLE="font-family: Symbol; font-size: 10pt">&middot;</FONT></TD><TD STYLE="padding-right: 27.95pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 10pt">Higher provision for transfer to the
Municipal Funds for Environmental Sanitation and Infrastructure, of R$ 32.9 million, resulting from an increase in both revenue and number
of municipalities expected to contribute with transfers; and</FONT></TD></TR></TABLE>

<P STYLE="font: 15.5pt Arial MT,sans-serif; margin: 0.45pt 0 0">&nbsp;</P>

<P STYLE="font: bold 10pt Arial, Helvetica, Sans-Serif; margin: 0 0 0 41.6pt; color: navy">Depreciation and amortization</P>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 0"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Arial MT,sans-serif; margin: 0 0 0 41.5pt">The R$ 36.7 million increase (+6.9%) was due to the beginning of operations
of intangible assets, totaling R$ 4.1 billion.</P>

<P STYLE="font: 15pt Arial MT,sans-serif; margin: 0.2pt 0 0">&nbsp;</P>

<P STYLE="font: bold 10pt Arial, Helvetica, Sans-Serif; margin: 0 0 0 41.5pt; color: navy">Allowance for doubtful accounts</P>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 0.45pt 0 0"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Arial MT,sans-serif; margin: 0.05pt 0 0 41.5pt">Increase of R$ 43.5 million (+57.9%), due to the higher delinquency
recorded in 3Q21.</P>

<P STYLE="font: 11pt Arial MT,sans-serif; margin: 0">&nbsp;</P>

<P STYLE="font: 9.5pt Arial MT,sans-serif; margin: 0.45pt 0 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: bold 14pt Arial, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 0; color: navy"><TR STYLE="vertical-align: top">
<TD STYLE="width: 37.65pt"></TD><TD STYLE="width: 18pt">6.</TD><TD>Financial result</TD></TR></TABLE>

<P STYLE="font: 13pt Arial, Helvetica, Sans-Serif; margin: 0.25pt 0 0"><B>&nbsp;</B></P>

<P STYLE="font: 9pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: right"><B><I>R$ million</I></B></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 11pt Georgia, Times, Serif; border-collapse: collapse">
  <TR STYLE="vertical-align: top; background-color: #8EB4E2">
    <TD COLSPAN="3" STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="border-bottom: black 1pt solid; padding-top: 5.2pt; padding-right: 0.3pt; text-align: center; line-height: 9.5pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Var.</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top; background-color: #8EB4E2">
    <TD STYLE="border-bottom: Black 1pt solid; padding-top: 2.25pt; padding-right: 14.85pt; text-align: right; line-height: 9.45pt; width: 63%">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-top: 2.25pt; text-align: center; line-height: 9.45pt; width: 10%"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>3Q21</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2.25pt; text-align: center; line-height: 9.45pt; width: 9%"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>&#9;3Q20</B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 2.25pt; text-align: center; line-height: 9.45pt; width: 10%"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>R$&#9;</B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 2.25pt; text-align: center; line-height: 9.45pt; width: 8%"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>%</B></FONT></TD></TR>

<TR STYLE="vertical-align: top">
    <TD STYLE="padding-left: 3.8pt; line-height: 10.05pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Financial expenses, net of income</FONT></TD>
    <TD STYLE="text-align: right; line-height: 10.05pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">(207.5)</FONT></TD>
    <TD STYLE="text-align: right; line-height: 10.05pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">(180.2)</FONT></TD>
    <TD STYLE="text-align: right; line-height: 10.05pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">(27.3)</FONT></TD>
    <TD STYLE="text-align: right; line-height: 10.05pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">15.1</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 1.4pt; padding-left: 3.8pt; line-height: 9.4pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Monetary and exchange variations, net</FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 1.4pt; text-align: right; line-height: 9.4pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">(313.1)</FONT></TD>
    <TD STYLE="text-align: right; border-bottom: black 1pt solid; padding-top: 1.4pt; line-height: 9.4pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">(150.4)</FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 1.4pt; text-align: right; line-height: 9.4pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">(162.7)</FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 1.4pt; text-align: right; line-height: 9.4pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">108.2</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 2.25pt; padding-left: 3.8pt; line-height: 9.55pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Financial Result</B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 2.25pt; text-align: right; line-height: 9.55pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>(520.6)</B></FONT></TD>
    <TD STYLE="text-align: right; border-bottom: black 1pt solid; padding-top: 2.25pt; line-height: 9.55pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>(330.6)</B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 2.25pt; text-align: right; line-height: 9.55pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>(190.0)</B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 2.25pt; text-align: right; line-height: 9.55pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>57.5</B></FONT></TD></TR>
  </TABLE>
<P STYLE="font: 5.5pt Times New Roman, Times, Serif; margin: 0.15pt 0 0"><B><I>&nbsp;</I></B></P>

<P STYLE="font: bold 10pt Arial, Helvetica, Sans-Serif; margin: 4.7pt 0 0 41.5pt; color: navy">Financial expenses, net of income</P>

<P STYLE="font: 9.5pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0.2pt 0 0"><B>&nbsp;</B></P>

<P STYLE="text-align: right; font: 9pt Times New Roman, Times, Serif; margin: 0.05pt 0 0 41.5pt"><B><I>R$ million</I></B></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 11pt Georgia, Times, Serif; border-collapse: collapse">
  <TR STYLE="vertical-align: top; background-color: #8EB4E2">
    <TD COLSPAN="3" STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="border-bottom: black 1pt solid; padding-top: 5.2pt; padding-right: 0.35pt; text-align: center; line-height: 9.5pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Var.</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top; background-color: #8EB4E2">
    <TD STYLE="border-bottom: Black 1pt solid; padding-top: 4.5pt; padding-right: 14.8pt; text-align: right; line-height: 9.45pt; width: 63%">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-top: 4.5pt; text-align: center; line-height: 9.45pt; width: 10%"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>3Q21</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 4.5pt; text-align: center; line-height: 9.45pt; width: 9%"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>&#9;3Q20</B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 4.5pt; text-align: center; line-height: 9.45pt; width: 10%"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>R$&#9;</B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 4.5pt; text-align: center; line-height: 9.45pt; width: 8%"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>%</B></FONT></TD></TR>

<TR STYLE="vertical-align: top">
    <TD STYLE="padding-left: 4.15pt; line-height: 10.05pt"><P STYLE="font: 9pt Arial MT,sans-serif; text-align: left; margin-top: 4.55pt; margin-right: 0; margin-bottom: 0">Financial expenses</P>
</TD>
    <TD STYLE="text-align: right; line-height: 10.05pt">&nbsp;</TD>
    <TD STYLE="text-align: right; line-height: 10.05pt">&nbsp;</TD>
    <TD STYLE="text-align: right; line-height: 10.05pt">&nbsp;</TD>
    <TD STYLE="text-align: right; line-height: 10.05pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 63%; padding-left: 11.65pt; line-height: 10.05pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Interest and charges on domestic borrowings and financing</FONT></TD>
    <TD STYLE="width: 10%; text-align: right; line-height: 10.05pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">(167.4)</FONT></TD>
    <TD STYLE="width: 9%; text-align: right; line-height: 10.05pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">(92.0)</FONT></TD>
    <TD STYLE="width: 10%; text-align: right; line-height: 10.05pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">(75.4)</FONT></TD>
    <TD STYLE="width: 8%; text-align: right; line-height: 10.05pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">82.0</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 2.15pt; padding-left: 11.65pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Interest and charges on international borrowings and financing</FONT></TD>
    <TD STYLE="padding-top: 2.15pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">(12.5)</FONT></TD>
    <TD STYLE="padding-top: 2.15pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">(39.5)</FONT></TD>
    <TD STYLE="padding-top: 2.15pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">27.0</FONT></TD>
    <TD STYLE="padding-top: 2.15pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">(68.4)</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 2.15pt; padding-left: 11.7pt; line-height: 9.45pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Other financial expenses</FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 2.15pt; text-align: right; line-height: 9.45pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">(105.0)</FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 2.15pt; text-align: right; line-height: 9.45pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">(94.2)</FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 2.15pt; text-align: right; line-height: 9.45pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">(10.8)</FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 2.15pt; text-align: right; line-height: 9.45pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">11.5</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 3.7pt; padding-left: 4.15pt; line-height: 9.55pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Total financial expenses</B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 3.7pt; text-align: right; line-height: 9.55pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>(284.9)</B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 3.7pt; text-align: right; line-height: 9.55pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>(225.7)</B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 3.7pt; text-align: right; line-height: 9.55pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>(59.2)</B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 3.7pt; text-align: right; line-height: 9.55pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>26.2</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 5.25pt; padding-left: 4.2pt; line-height: 9.4pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Financial income</FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 5.25pt; text-align: right; line-height: 9.4pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">77.4</FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 5.25pt; text-align: right; line-height: 9.4pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">45.5</FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 5.25pt; text-align: right; line-height: 9.4pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">31.9</FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 5.25pt; text-align: right; line-height: 9.4pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">70.1</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 3.75pt; padding-left: 4.2pt; line-height: 9.55pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Financial expenses, net of income</B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 3.75pt; text-align: right; line-height: 9.55pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>(207.5)</B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 3.75pt; text-align: right; line-height: 9.55pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>(180.2)</B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 3.75pt; text-align: right; line-height: 9.55pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>(27.3)</B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 3.75pt; text-align: right; line-height: 9.55pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>15.1</B></FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Arial MT,sans-serif; margin: 0">&nbsp;</P>

<P STYLE="font: 9.5pt Arial MT,sans-serif; margin: 0.25pt 0 0">&nbsp;</P>

<P STYLE="font: 10pt Arial MT,sans-serif; margin: 0 0 0 55.7pt">The main impacts in &#8220;financial expenses, net of income&#8221; result
from:</P>


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    <DIV STYLE="margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: right; width: 100%">Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->18<!-- Field: /Sequence --> of 87&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: 85%"><P STYLE="text-align: left; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">ITR - Quarterly Information Form - 9/30/2021 - CIA SANEAMENTO BASICO EST SAO PAULO</P></TD><TD STYLE="text-align: center; width: 15%"><P STYLE="text-align: right; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">Version : 1</P></TD></TR></TABLE><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B>Comments on the Company&rsquo;s Performance</B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 9.5pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 9.5pt Arial MT,sans-serif; margin: 0.2pt 0 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/103% Georgia, Times, Serif; margin-top: 5.05pt; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 41.55pt"></TD><TD STYLE="width: 14.1pt"><FONT STYLE="font-family: Symbol; font-size: 10pt">&middot;</FONT></TD><TD STYLE="text-align: justify; padding-right: 27.95pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 10pt">Increase of R$
75.4 million in interest and charges on domestic borrowings and financing, mainly due to: (i) higher interest on debentures, of R$ 22.7
million, mainly from the proceeds of the 27th and 28th issues; (ii) recognition of R$ 16.5 million in interest in 3Q21, due to the funds
raised with BID Invest in November 2020; and (iii) rise in the average DI rate (from 1.90% in 3Q20 to 6.15% in 3Q21), which impacted interest
on several domestic borrowings;</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/102% Georgia, Times, Serif; margin-top: 5.6pt; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 41.55pt"></TD><TD STYLE="width: 14.15pt"><FONT STYLE="font-family: Symbol; font-size: 10pt">&middot;</FONT></TD><TD STYLE="text-align: justify; padding-right: 27.95pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 10pt">Decrease of R$
27.0 million in interest and charges on international borrowings and financing, due to the amortization of Eurobonds on September 30,
2020, leading to a decrease of R$ 27.2 million;</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/102% Georgia, Times, Serif; margin-top: 5.7pt; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 41.6pt"></TD><TD STYLE="width: 14.1pt"><FONT STYLE="font-family: Symbol; font-size: 10pt">&middot;</FONT></TD><TD STYLE="text-align: justify; padding-right: 28pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 10pt">Increase of R$ 10.8
million in other financial expenses, mostly due to higher recognition of interest on lawsuits, of R$ 15.5 million; and</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/102% Georgia, Times, Serif; margin-top: 5.75pt; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 41.6pt"></TD><TD STYLE="width: 14.1pt"><FONT STYLE="font-family: Symbol; font-size: 10pt">&middot;</FONT></TD><TD STYLE="text-align: justify; padding-right: 28.05pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 10pt">Increase of R$
31.9 million in financial income, mainly on financial investments in 3Q21, as a result of the higher value adopted and the average DI
rate.</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Arial MT,sans-serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10.5pt Arial MT,sans-serif; margin: 0.2pt 0 0">&nbsp;</P>

<P STYLE="font: bold 10pt Arial, Helvetica, Sans-Serif; margin: 0 0 0 41.5pt; color: navy">Monetary and exchange variations, net</P>

<P STYLE="font: 9.5pt Georgia, Times, Serif; margin: 0"></P>

<P STYLE="font: 13pt Arial, Helvetica, Sans-Serif; margin: 0.5pt 0 0"><B>&nbsp;</B></P>

<P STYLE="text-align: right; font: 9pt Times New Roman, Times, Serif; margin: 0 0 0 41.5pt"><B><I>R$ million</I></B></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 11pt Georgia, Times, Serif; border-collapse: collapse">
  <TR STYLE="vertical-align: top; background-color: #8EB4E2">
    <TD COLSPAN="3" STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="border-bottom: black 1pt solid; padding-top: 5.2pt; padding-right: 0.25pt; text-align: center; line-height: 9.45pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Var.</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top; background-color: #8EB4E2">
    <TD STYLE="border-bottom: Black 1pt solid; padding-top: 2.25pt; padding-right: 15.2pt; text-align: right; line-height: 9.45pt; width: 57%">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-top: 2.25pt; text-align: center; line-height: 9.45pt; width: 16%"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>3Q21</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2.25pt; text-align: center; line-height: 9.45pt; width: 9%"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>&#9;3Q20</B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 2.25pt; padding-right: 5.4pt; text-align: center; line-height: 9.45pt; width: 10%"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>R$&#9;</B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 2.25pt; padding-right: 5.4pt; text-align: center; line-height: 9.45pt; width: 8%"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>%</B></FONT></TD></TR>

<TR STYLE="vertical-align: top">
    <TD STYLE="line-height: 10.05pt"><P STYLE="font: 9pt Arial MT,sans-serif; margin: 4.55pt 0 0 4.2pt">Monetary and exchange variation on liabilities</P>
</TD>
    <TD STYLE="text-align: right; line-height: 10.05pt">&nbsp;</TD>
    <TD STYLE="text-align: right; line-height: 10.05pt">&nbsp;</TD>
    <TD STYLE="text-align: right; line-height: 10.05pt">&nbsp;</TD>
    <TD STYLE="text-align: right; line-height: 10.05pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 57%; padding-left: 11.65pt; line-height: 10.05pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Monetary variations on borrowings and financing</FONT></TD>
    <TD STYLE="width: 16%; text-align: right; line-height: 10.05pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">(52.0)</FONT></TD>
    <TD STYLE="width: 9%; text-align: right; line-height: 10.05pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">(19.7)</FONT></TD>
    <TD STYLE="width: 10%; text-align: right; line-height: 10.05pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">(32.3)</FONT></TD>
    <TD STYLE="width: 8%; text-align: right; line-height: 10.05pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">164.0</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 2.15pt; padding-left: 11.65pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Exchange variations on borrowings and financing</FONT></TD>
    <TD STYLE="padding-top: 2.15pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">(252.6)</FONT></TD>
    <TD STYLE="padding-top: 2.15pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">(111.1)</FONT></TD>
    <TD STYLE="padding-top: 2.15pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">(141.5)</FONT></TD>
    <TD STYLE="padding-top: 2.15pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">127.4</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 2.15pt; padding-left: 11.65pt; line-height: 9.45pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Other monetary variations</FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 2.15pt; text-align: right; line-height: 9.45pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">(69.3)</FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 2.15pt; text-align: right; line-height: 9.45pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">(39.8)</FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 2.15pt; text-align: right; line-height: 9.45pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">(29.5)</FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 2.15pt; text-align: right; line-height: 9.45pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">74.1</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 2.2pt; padding-left: 4.15pt; line-height: 9.55pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Total monetary and exchange variations on liabilities</B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 2.2pt; text-align: right; line-height: 9.55pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>(373.9)</B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 2.2pt; text-align: right; line-height: 9.55pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>(170.6)</B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 2.2pt; text-align: right; line-height: 9.55pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>(203.3)</B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 2.2pt; text-align: right; line-height: 9.55pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>119.2</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 5.25pt; padding-left: 4.2pt; line-height: 9.45pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Monetary and exchange variations on assets</FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 5.25pt; text-align: right; line-height: 9.45pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">60.8</FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 5.25pt; text-align: right; line-height: 9.45pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">20.2</FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 5.25pt; text-align: right; line-height: 9.45pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">40.6</FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 5.25pt; text-align: right; line-height: 9.45pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">201.0</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 3.7pt; padding-left: 4.2pt; line-height: 9.55pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Monetary and exchange variations, net</B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 3.7pt; text-align: right; line-height: 9.55pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>(313.1)</B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 3.7pt; text-align: right; line-height: 9.55pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>(150.4)</B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 3.7pt; text-align: right; line-height: 9.55pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>(162.7)</B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 3.7pt; text-align: right; line-height: 9.55pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>108.2</B></FONT></TD></TR>
  </TABLE>
<P STYLE="font: 9.5pt Arial MT,sans-serif; margin: 0.2pt 0 0">&nbsp;</P>

<P STYLE="font: 10pt Arial MT,sans-serif; margin: 0 26pt 0 41.5pt">The effect of net monetary and exchange variations was R$ 162.7 million
in 3Q21, higher than in 3Q20, mainly from:</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/102% Georgia, Times, Serif; margin-top: 6.05pt; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 41.6pt"></TD><TD STYLE="width: 14.1pt"><FONT STYLE="font-family: Symbol; font-size: 10pt">&middot;</FONT></TD><TD STYLE="text-align: justify; padding-right: 28.1pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 10pt">R$ 32.3 million
increase in monetary variations on borrowings and financing, due to the rise in the IPCA consumer price index;</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/103% Georgia, Times, Serif; margin-top: 5.7pt; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 41.6pt"></TD><TD STYLE="width: 14.1pt"><FONT STYLE="font-family: Symbol; font-size: 10pt">&middot;</FONT></TD><TD STYLE="text-align: justify; padding-right: 27.9pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 10pt">R$ 141.5 million
increase in exchange variations on borrowings and financing, due to the higher appreciation of the U.S. dollar and Yen against the Real
in 3Q21 (8.7% and 8.3%, respectively), when compared to the appreciations recorded in 3Q20 (3.0% and 5.2%, respectively);</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/103% Georgia, Times, Serif; margin-top: 5.55pt; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 41.6pt"></TD><TD STYLE="width: 14.1pt"><FONT STYLE="font-family: Symbol; font-size: 10pt">&middot;</FONT></TD><TD STYLE="text-align: justify; padding-right: 28.05pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 10pt">R$ 29.5 million
increase in other monetary variations, due to: (i) higher monetary variation on lawsuits, of R$ 13.9 million; and (ii) higher monetary
variation on the asset leases, of R$ 12.2 million, resulting from a rise in the average IPC; and</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/102% Georgia, Times, Serif; margin-top: 5.5pt; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 41.6pt"></TD><TD STYLE="width: 14.1pt"><FONT STYLE="font-family: Symbol; font-size: 10pt">&middot;</FONT></TD><TD STYLE="text-align: justify; padding-right: 28.05pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 10pt">R$ 40.6 million
increase in monetary and exchange variation gains, due to higher adjustments on agreements and overdue bills, caused by the rise in the
IPCA.</FONT></TD></TR></TABLE>

<P STYLE="font: 15pt Arial MT,sans-serif; margin: 0.5pt 0 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: bold 14pt Arial, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 0; color: navy"><TR STYLE="vertical-align: top">
<TD STYLE="width: 37.65pt"></TD><TD STYLE="width: 18pt">7.</TD><TD>Income tax and social contribution</TD></TR></TABLE>

<P STYLE="font: 10pt Arial MT,sans-serif; margin: 11.45pt 0 0 48.6pt">The R$ 3.9 million increase in 3Q21 was mainly due to:</P>

<P STYLE="font: 10pt Arial MT,sans-serif; margin: 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/102% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 41.6pt"></TD><TD STYLE="width: 14.1pt"><FONT STYLE="font-family: Symbol; font-size: 10pt">&middot;</FONT></TD><TD STYLE="padding-right: 28.05pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 10pt">Higher net operating revenue, excluding
the effects of the construction revenue, of R$ 582.7 million;</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Georgia, Times, Serif; margin-top: 5.75pt; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 41.55pt"></TD><TD STYLE="width: 14.15pt"><FONT STYLE="font-family: Symbol; font-size: 10pt">&middot;</FONT></TD><TD><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 10pt">Higher costs and expenses, of R$ 347.5 million; and</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Georgia, Times, Serif; margin-top: 5.9pt; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 41.5pt"></TD><TD STYLE="width: 14.2pt"><FONT STYLE="font-family: Symbol; font-size: 10pt">&middot;</FONT></TD><TD><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 10pt">Higher expenses with exchange variation, of R$ 141.5 million.</FONT></TD></TR></TABLE>


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    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 85%"><P STYLE="text-align: left; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">ITR - Quarterly Information Form - 9/30/2021 - CIA SANEAMENTO BASICO EST SAO PAULO</P></TD><TD STYLE="text-align: center; width: 15%"><P STYLE="text-align: right; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">Version : 1</P></TD></TR></TABLE><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B>Comments on the Company&rsquo;s Performance</B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 9.5pt Georgia, Times, Serif; margin: 0.2pt 0 0">&nbsp;</P>

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<TD STYLE="width: 37.65pt"></TD><TD STYLE="width: 18pt">8.</TD><TD>Indicators</TD></TR></TABLE>

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<TD STYLE="width: 41.45pt"></TD><TD STYLE="width: 18.1pt"><FONT STYLE="letter-spacing: -0.05pt">a)</FONT></TD><TD>Operating</TD></TR></TABLE>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 0"><B>&nbsp;</B></P>

<P STYLE="font: 10.5pt Arial, Helvetica, Sans-Serif; margin: 0"><B>&nbsp;</B></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 11pt Georgia, Times, Serif; border-collapse: collapse">
  <TR STYLE="vertical-align: top; background-color: #8EB4E2">
    <TD STYLE="width: 63%; border: black 1pt solid; padding-top: 2.7pt; padding-right: 84.15pt; padding-left: 84.7pt; text-align: center; line-height: 10.55pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 10pt"><B>Information <SUP>(*)</SUP></B></FONT></TD>
    <TD STYLE="width: 13%; border-top: black 1pt solid; border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2.7pt; padding-left: 15.75pt; line-height: 10.55pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 10pt"><B>3Q21</B></FONT></TD>
    <TD STYLE="width: 13%; border-top: black 1pt solid; border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2.7pt; padding-left: 15.75pt; line-height: 10.55pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 10pt"><B>3Q20</B></FONT></TD>
    <TD STYLE="width: 11%; border-top: black 1pt solid; border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2.7pt; padding-left: 1.05pt; text-align: center; line-height: 10.55pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 10pt"><B>%</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 2.65pt; padding-left: 3.45pt; line-height: 10.6pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 10pt">Water connections <SUP>(1)</SUP></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2.65pt; padding-right: 2.65pt; text-align: right; line-height: 10.6pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 10pt">10,152</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2.65pt; padding-right: 2.65pt; text-align: right; line-height: 10.6pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 10pt">10,030</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2.65pt; padding-right: 2.45pt; text-align: right; line-height: 10.6pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 10pt">1.2</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 2.65pt; padding-left: 3.45pt; line-height: 10.6pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 10pt">Sewage connections <SUP>(1)</SUP></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2.65pt; padding-right: 2.65pt; text-align: right; line-height: 10.6pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 10pt">8,627</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2.65pt; padding-right: 2.65pt; text-align: right; line-height: 10.6pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 10pt">8,458</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2.65pt; padding-right: 2.45pt; text-align: right; line-height: 10.6pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 10pt">2.0</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 2.65pt; padding-left: 3.45pt; line-height: 10.6pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 10pt">Population directly served - water <SUP>(2)</SUP></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2.65pt; padding-right: 2.65pt; text-align: right; line-height: 10.6pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 10pt">27.7</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2.65pt; padding-right: 2.65pt; text-align: right; line-height: 10.6pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 10pt">27.4</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2.65pt; padding-right: 2.45pt; text-align: right; line-height: 10.6pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 10pt">1.1</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 2.65pt; padding-left: 3.45pt; line-height: 10.6pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 10pt">Population directly served - sewage (2)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2.65pt; padding-right: 2.65pt; text-align: right; line-height: 10.6pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 10pt">24.6</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2.65pt; padding-right: 2.65pt; text-align: right; line-height: 10.6pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 10pt">24.2</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2.65pt; padding-right: 2.45pt; text-align: right; line-height: 10.6pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 10pt">1.7</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 1.1pt; padding-left: 3.45pt; line-height: 10.6pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 10pt">Number of employees</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 1.1pt; padding-right: 2.7pt; text-align: right; line-height: 10.6pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 10pt">12,598</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 1.1pt; padding-right: 2.8pt; text-align: right; line-height: 10.6pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 10pt">13,533</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 1.1pt; padding-right: 2.5pt; text-align: right; line-height: 10.6pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 10pt">(6.9)</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 2.65pt; padding-left: 3.45pt; line-height: 10.6pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 10pt">Volume of water produced in the quarter <SUP>(3)</SUP></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2.65pt; padding-right: 2.65pt; text-align: right; line-height: 10.6pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 10pt">717</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2.65pt; padding-right: 2.7pt; text-align: right; line-height: 10.6pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 10pt">726</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2.65pt; padding-right: 2.45pt; text-align: right; line-height: 10.6pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 10pt">(1.3)</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 3.45pt; padding-left: 3.45pt; line-height: 10.5pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 10pt">Volume of water produced in 9M21 <SUP>(3)</SUP></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 2.65pt; text-align: right; line-height: 10.5pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 10pt">2,157</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 2.7pt; text-align: right; line-height: 10.5pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 10pt">2,171</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 3.45pt; padding-right: 2.45pt; text-align: right; line-height: 10.5pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 10pt">(0.7)</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 6pt Arial, Helvetica, Sans-Serif; margin: 0"><B>&nbsp;</B></P>

<P STYLE="font: 8pt Arial MT,sans-serif; margin: 5pt 0 0 85.25pt"><SUP>(1)</SUP> Total connections, active and inactive, in thousand units
at the end of the period. Excludes Mau&aacute;.</P>

<P STYLE="font: 8pt/9.2pt Arial MT,sans-serif; margin: 0.05pt 0 0 85.25pt"><SUP>(2)</SUP> In million inhabitants, at the end of the period.
Excludes wholesale supply and Mau&aacute;.</P>

<P STYLE="font: 8pt/9.2pt Arial MT,sans-serif; margin: 0 0 0 85.25pt"><SUP>(3)</SUP> In millions of cubic meters</P>

<P STYLE="font: 8pt Arial MT,sans-serif; margin: 0 0 0 85.25pt"><SUP>(*)</SUP> Unaudited by external auditors</P>

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

<P STYLE="font: 7pt Arial MT,sans-serif; margin: 0.1pt 0 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: bold 10pt Arial, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 0; color: navy"><TR STYLE="vertical-align: top">
<TD STYLE="width: 41.45pt"></TD><TD STYLE="width: 18.1pt"><FONT STYLE="letter-spacing: -0.05pt">b)</FONT></TD><TD>Economic</TD></TR></TABLE>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 0"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 0"><B>&nbsp;</B></P>

<P STYLE="font: 7.5pt Arial, Helvetica, Sans-Serif; margin: 0.35pt 0 0"><B>&nbsp;</B></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 11pt Georgia, Times, Serif; border-collapse: collapse">
  <TR STYLE="vertical-align: top; background-color: #8EB4E2">
    <TD STYLE="width: 72%; border: black 1pt solid; padding-top: 1.05pt; padding-left: 42.9pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Economic Variables at the End of the Quarter (*)</FONT></TD>
    <TD STYLE="width: 14%; border-top: black 1pt solid; border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 1pt; padding-left: 17.9pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>3Q21</B></FONT></TD>
    <TD STYLE="width: 14%; border-top: black 1pt solid; border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 1pt; padding-left: 17.5pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>3Q20</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 1.65pt; padding-left: 3.45pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Amplified Consumer Price Index </FONT><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 6pt">(1)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 1.85pt; padding-right: 2.55pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">3.02</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 1.85pt; padding-right: 2.35pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1.24</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 1.6pt; padding-left: 3.45pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">National Consumer Price Index </FONT><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 6pt">(1)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 1.8pt; padding-right: 2.55pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">3.13</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 1.8pt; padding-right: 2.35pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1.68</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 1.65pt; padding-left: 3.45pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Consumer Price Index </FONT><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 6pt">(1)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 1.85pt; padding-right: 2.55pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">3.63</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 1.85pt; padding-right: 2.35pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2.16</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 1.65pt; padding-left: 3.45pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Interbank Deposit Certificate </FONT><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 6pt">(2)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 1.85pt; padding-right: 2.55pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">6.15</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 1.85pt; padding-right: 2.35pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1.90</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 1.65pt; padding-left: 3.45pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">U.S. Dollar </FONT><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 6pt">(3)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 1.85pt; padding-right: 2.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">5.4394</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 1.85pt; padding-right: 2.4pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">5.6407</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 2.05pt; padding-left: 3.45pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Yen </FONT><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 6pt">(3)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2.2pt; padding-right: 2.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">0.04878</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2.2pt; padding-right: 2.45pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">0.05343</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 3.5pt Arial, Helvetica, Sans-Serif; margin: 0"><B>&nbsp;</B></P>

<P STYLE="font: 8pt Arial MT,sans-serif; margin: 5pt 0 0 82.5pt"><SUP>(1)</SUP> Accrued in the quarter (%)</P>

<P STYLE="font: 8pt/9.2pt Arial MT,sans-serif; margin: 0.05pt 0 0 82.5pt"><SUP>(2)</SUP> Quarterly rate on the last day</P>

<P STYLE="font: 8pt/9.2pt Arial MT,sans-serif; margin: 0 0 0 82.5pt"><SUP>(3)</SUP> Ptax sale rate on the last day</P>

<P STYLE="font: 8pt Arial MT,sans-serif; margin: 0 0 0 82.5pt"><SUP>(*)</SUP> Unaudited by external auditors</P>

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

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

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

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: bold 14pt Arial, Helvetica, Sans-Serif; margin-top: 6.1pt; margin-bottom: 0; color: navy"><TR STYLE="vertical-align: top">
<TD STYLE="width: 34.35pt"></TD><TD STYLE="width: 28.4pt">9.</TD><TD>Borrowings and financing</TD></TR></TABLE>

<P STYLE="font: 10pt Arial MT,sans-serif; margin: 11.45pt 28pt 0 41.5pt; text-align: justify">According to the Material Fact released
on October 28, 2021, the Board of Directors approved the 29th Debenture Issue in up to three series for public distribution, under CVM
Instruction 400, at an initial amount of R$ 1,250 million, R$ 500.0 million of which to the institutional public and R$ 750.0 million
as incentive debentures, under article 2 of Law 12,431/11. According to CVM Instruction 400, the Company has the option to exercise an
Additional Lot of up to 20% of the initial amount. The proceeds raised with the Debenture issue will be used to refinance maturing debt
and restore cash, as well as for infrastructure investments in projects deemed as a priority by the Regional Development Ministry (MDR),
according to Law 12,431/11.</P>


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    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 85%"><P STYLE="text-align: left; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">ITR - Quarterly Information Form - 9/30/2021 - CIA SANEAMENTO BASICO EST SAO PAULO</P></TD><TD STYLE="text-align: center; width: 15%"><P STYLE="text-align: right; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">Version : 1</P></TD></TR></TABLE><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B>Comments on the Company&rsquo;s Performance</B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 9.5pt Georgia, Times, Serif; margin: 0.35pt 0 0">&nbsp;</P>

<P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin-top: 3.35pt; margin-bottom: 0; margin-left: 0; text-align: right"><B><I>(R$ thousand)</I></B></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 11pt Georgia, Times, Serif; border-collapse: collapse">
  <TR STYLE="vertical-align: top; background-color: #8EB4E2">
    <TD COLSPAN="10" STYLE="padding-top: 1.65pt; padding-right: 250.5pt; padding-left: 250.2pt; text-align: center"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>DEBT PROFILE</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top; background-color: #8EB4E2">
    <TD STYLE="width: 34%; padding-top: 6.4pt; padding-right: 58.4pt; padding-left: 54.95pt; text-align: center"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>INSTITUTION</B></FONT></TD>
    <TD STYLE="width: 8%; padding-top: 6.4pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>2021</B></FONT></TD>
    <TD STYLE="width: 8%; padding-top: 6.4pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>2022</B></FONT></TD>
    <TD STYLE="width: 8%; padding-top: 6.4pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>2023</B></FONT></TD>
    <TD STYLE="width: 8%; padding-top: 6.4pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>2024</B></FONT></TD>
    <TD STYLE="width: 7%; padding-top: 6.4pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>2025</B></FONT></TD>
    <TD STYLE="width: 7%; padding-top: 6.4pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>2026</B></FONT></TD>
    <TD STYLE="width: 8%; padding-top: 1.75pt; text-indent: -4pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>2027 onwards</B></FONT></TD>
    <TD STYLE="width: 8%; padding-top: 6.4pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>TOTAL</B></FONT></TD>
    <TD STYLE="width: 4%; padding-top: 1.75pt; text-indent: -1.1pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>% of total</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.6pt; padding-left: 3.45pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B><I>Local currency</I></B></FONT></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.65pt; padding-left: 3.45pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Debentures</FONT></TD>
    <TD STYLE="padding-top: 1.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">1,497,746</FONT></TD>
    <TD STYLE="padding-top: 1.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">591,574</FONT></TD>
    <TD STYLE="padding-top: 1.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">690,472</FONT></TD>
    <TD STYLE="padding-top: 1.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">1,056,617</FONT></TD>
    <TD STYLE="padding-top: 1.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">939,196</FONT></TD>
    <TD STYLE="padding-top: 1.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">828,655</FONT></TD>
    <TD STYLE="padding-top: 1.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">1,918,360</FONT></TD>
    <TD STYLE="padding-top: 1.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">7,522,620</FONT></TD>
    <TD STYLE="padding-top: 1.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">42</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.6pt; padding-left: 3.45pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Brazilian Federal Savings Bank</FONT></TD>
    <TD STYLE="padding-top: 1.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">23,762</FONT></TD>
    <TD STYLE="padding-top: 1.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">98,069</FONT></TD>
    <TD STYLE="padding-top: 1.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">92,713</FONT></TD>
    <TD STYLE="padding-top: 1.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">91,889</FONT></TD>
    <TD STYLE="padding-top: 1.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">97,638</FONT></TD>
    <TD STYLE="padding-top: 1.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">103,749</FONT></TD>
    <TD STYLE="padding-top: 1.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">950,776</FONT></TD>
    <TD STYLE="padding-top: 1.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">1,458,596</FONT></TD>
    <TD STYLE="padding-top: 1.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">8</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.65pt; padding-left: 3.45pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">BNDES</FONT></TD>
    <TD STYLE="padding-top: 1.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">52,458</FONT></TD>
    <TD STYLE="padding-top: 1.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">209,832</FONT></TD>
    <TD STYLE="padding-top: 1.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">203,098</FONT></TD>
    <TD STYLE="padding-top: 1.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">196,438</FONT></TD>
    <TD STYLE="padding-top: 1.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">176,267</FONT></TD>
    <TD STYLE="padding-top: 1.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">166,453</FONT></TD>
    <TD STYLE="padding-top: 1.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">436,169</FONT></TD>
    <TD STYLE="padding-top: 1.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">1,440,715</FONT></TD>
    <TD STYLE="padding-top: 1.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">8</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.6pt; padding-left: 3.45pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">IDB 2202</FONT></TD>
    <TD STYLE="padding-top: 1.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-</FONT></TD>
    <TD STYLE="padding-top: 1.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">181,349</FONT></TD>
    <TD STYLE="padding-top: 1.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">181,349</FONT></TD>
    <TD STYLE="padding-top: 1.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">181,349</FONT></TD>
    <TD STYLE="padding-top: 1.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">181,349</FONT></TD>
    <TD STYLE="padding-top: 1.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">181,349</FONT></TD>
    <TD STYLE="padding-top: 1.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">1,618,768</FONT></TD>
    <TD STYLE="padding-top: 1.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">2,525,513</FONT></TD>
    <TD STYLE="padding-top: 1.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">14</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.65pt; padding-left: 3.45pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">IDB INVEST</FONT></TD>
    <TD STYLE="padding-top: 1.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-</FONT></TD>
    <TD STYLE="padding-top: 1.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">34,800</FONT></TD>
    <TD STYLE="padding-top: 1.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">37,340</FONT></TD>
    <TD STYLE="padding-top: 1.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">39,550</FONT></TD>
    <TD STYLE="padding-top: 1.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">44,300</FONT></TD>
    <TD STYLE="padding-top: 1.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">106,390</FONT></TD>
    <TD STYLE="padding-top: 1.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">662,653</FONT></TD>
    <TD STYLE="padding-top: 1.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">925,033</FONT></TD>
    <TD STYLE="padding-top: 1.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">5</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 3.1pt; padding-right: 6pt; padding-left: 3.45pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Lease (Concession Agreements, Program Contracts and Contract Asset) <SUP>(1)</SUP></FONT></TD>
    <TD STYLE="padding-top: 7.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">36,074</FONT></TD>
    <TD STYLE="padding-top: 7.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">38,480</FONT></TD>
    <TD STYLE="padding-top: 7.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">40,578</FONT></TD>
    <TD STYLE="padding-top: 7.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">43,470</FONT></TD>
    <TD STYLE="padding-top: 7.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">35,183</FONT></TD>
    <TD STYLE="padding-top: 7.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">29,878</FONT></TD>
    <TD STYLE="padding-top: 7.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">180,716</FONT></TD>
    <TD STYLE="padding-top: 7.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">404,379</FONT></TD>
    <TD STYLE="padding-top: 7.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">2</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 3.2pt; padding-left: 3.45pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Leases (others) <SUP>(2)</SUP></FONT></TD>
    <TD STYLE="padding-top: 3.2pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">17,255</FONT></TD>
    <TD STYLE="padding-top: 3.2pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">59,356</FONT></TD>
    <TD STYLE="padding-top: 3.2pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">32,982</FONT></TD>
    <TD STYLE="padding-top: 3.2pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">8,699</FONT></TD>
    <TD STYLE="padding-top: 3.2pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">5,358</FONT></TD>
    <TD STYLE="padding-top: 3.2pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">1,302</FONT></TD>
    <TD STYLE="padding-top: 3.2pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-</FONT></TD>
    <TD STYLE="padding-top: 3.2pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">124,952</FONT></TD>
    <TD STYLE="padding-top: 3.2pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">1</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.6pt; padding-left: 3.45pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Other</FONT></TD>
    <TD STYLE="padding-top: 1.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">1,197</FONT></TD>
    <TD STYLE="padding-top: 1.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">4,790</FONT></TD>
    <TD STYLE="padding-top: 1.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">4,719</FONT></TD>
    <TD STYLE="padding-top: 1.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">2,393</FONT></TD>
    <TD STYLE="padding-top: 1.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">2,162</FONT></TD>
    <TD STYLE="padding-top: 1.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-</FONT></TD>
    <TD STYLE="padding-top: 1.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-</FONT></TD>
    <TD STYLE="padding-top: 1.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">15,261</FONT></TD>
    <TD STYLE="padding-top: 1.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">0</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.65pt; padding-left: 3.45pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Interest and charges</FONT></TD>
    <TD STYLE="padding-top: 1.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">258,086</FONT></TD>
    <TD STYLE="padding-top: 1.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-</FONT></TD>
    <TD STYLE="padding-top: 1.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-</FONT></TD>
    <TD STYLE="padding-top: 1.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-</FONT></TD>
    <TD STYLE="padding-top: 1.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-</FONT></TD>
    <TD STYLE="padding-top: 1.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-</FONT></TD>
    <TD STYLE="padding-top: 1.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-</FONT></TD>
    <TD STYLE="padding-top: 1.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">258,086</FONT></TD>
    <TD STYLE="padding-top: 1.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">2</FONT></TD></TR>
  <TR STYLE="vertical-align: top; background-color: #C5D9F1">
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 2pt; padding-left: 3.45pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B><I>Total in local currency</I></B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 2pt; text-align: right"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>1,886,578</B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 2pt; text-align: right"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>1,218,250</B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 2pt; text-align: right"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>1,283,251</B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 2pt; text-align: right"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>1,620,405</B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 2pt; text-align: right"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>1,481,453</B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 2pt; text-align: right"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>1,417,776</B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 2pt; text-align: right"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>5,767,442</B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 2pt; text-align: right"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>14,675,155</B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 2pt; text-align: right"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>82</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>
    <P STYLE="font: 10.5pt Calibri, Helvetica, Sans-Serif; margin: 0.1pt 0 0"><B><I>&nbsp;</I></B></P>
    <P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0 0 0 3.45pt"><B><I>Foreign currency</I></B></P></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.6pt; padding-left: 3.45pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">IDB</FONT></TD>
    <TD STYLE="padding-top: 1.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-</FONT></TD>
    <TD STYLE="padding-top: 1.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">55,907</FONT></TD>
    <TD STYLE="padding-top: 1.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">55,907</FONT></TD>
    <TD STYLE="padding-top: 1.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">55,907</FONT></TD>
    <TD STYLE="padding-top: 1.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">59,477</FONT></TD>
    <TD STYLE="padding-top: 1.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">7,140</FONT></TD>
    <TD STYLE="padding-top: 1.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">114,666</FONT></TD>
    <TD STYLE="padding-top: 1.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">349,004</FONT></TD>
    <TD STYLE="padding-top: 1.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">2</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.65pt; padding-left: 3.45pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">IBRD</FONT></TD>
    <TD STYLE="padding-top: 1.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-</FONT></TD>
    <TD STYLE="padding-top: 1.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">33,070</FONT></TD>
    <TD STYLE="padding-top: 1.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">33,070</FONT></TD>
    <TD STYLE="padding-top: 1.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">33,070</FONT></TD>
    <TD STYLE="padding-top: 1.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">33,070</FONT></TD>
    <TD STYLE="padding-top: 1.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">33,070</FONT></TD>
    <TD STYLE="padding-top: 1.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">244,006</FONT></TD>
    <TD STYLE="padding-top: 1.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">409,356</FONT></TD>
    <TD STYLE="padding-top: 1.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">2</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.6pt; padding-left: 3.45pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">JICA</FONT></TD>
    <TD STYLE="padding-top: 1.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">5,899</FONT></TD>
    <TD STYLE="padding-top: 1.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">207,020</FONT></TD>
    <TD STYLE="padding-top: 1.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">207,020</FONT></TD>
    <TD STYLE="padding-top: 1.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">207,020</FONT></TD>
    <TD STYLE="padding-top: 1.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">207,020</FONT></TD>
    <TD STYLE="padding-top: 1.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">207,020</FONT></TD>
    <TD STYLE="padding-top: 1.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">1,352,460</FONT></TD>
    <TD STYLE="padding-top: 1.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">2,393,459</FONT></TD>
    <TD STYLE="padding-top: 1.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">14</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.65pt; padding-left: 3.45pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">IDB 1983AB</FONT></TD>
    <TD STYLE="padding-top: 1.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-</FONT></TD>
    <TD STYLE="padding-top: 1.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">41,842</FONT></TD>
    <TD STYLE="padding-top: 1.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">41,147</FONT></TD>
    <TD STYLE="padding-top: 1.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-</FONT></TD>
    <TD STYLE="padding-top: 1.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-</FONT></TD>
    <TD STYLE="padding-top: 1.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-</FONT></TD>
    <TD STYLE="padding-top: 1.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-</FONT></TD>
    <TD STYLE="padding-top: 1.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">82,989</FONT></TD>
    <TD STYLE="padding-top: 1.65pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">0</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.6pt; padding-left: 3.45pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Interest and charges</FONT></TD>
    <TD STYLE="padding-top: 1.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">7,697</FONT></TD>
    <TD STYLE="padding-top: 1.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-</FONT></TD>
    <TD STYLE="padding-top: 1.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-</FONT></TD>
    <TD STYLE="padding-top: 1.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-</FONT></TD>
    <TD STYLE="padding-top: 1.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-</FONT></TD>
    <TD STYLE="padding-top: 1.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-</FONT></TD>
    <TD STYLE="padding-top: 1.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">-</FONT></TD>
    <TD STYLE="padding-top: 1.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">7,697</FONT></TD>
    <TD STYLE="padding-top: 1.6pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">0</FONT></TD></TR>
  <TR STYLE="vertical-align: top; background-color: #C5D9F1">
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 2pt; padding-left: 3.45pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B><I>Total in foreign currency</I></B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 2pt; text-align: right"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>13,596</B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 2pt; text-align: right"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>337,839</B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 2pt; text-align: right"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>337,144</B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 2pt; text-align: right"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>295,997</B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 2pt; text-align: right"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>299,567</B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 2pt; text-align: right"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>247,230</B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 2pt; text-align: right"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>1,711,132</B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 2pt; text-align: right"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>3,242,505</B></FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-top: 2pt; text-align: right"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>18</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top; background-color: #8EB4E2">
    <TD STYLE="padding-top: 1.65pt; padding-left: 3.45pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B><I>TOTAL</I></B></FONT></TD>
    <TD STYLE="padding-top: 1.65pt; text-align: right"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>1,900,174</B></FONT></TD>
    <TD STYLE="padding-top: 1.65pt; text-align: right"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>1,556,089</B></FONT></TD>
    <TD STYLE="padding-top: 1.65pt; text-align: right"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>1,620,395</B></FONT></TD>
    <TD STYLE="padding-top: 1.65pt; text-align: right"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>1,916,402</B></FONT></TD>
    <TD STYLE="padding-top: 1.65pt; text-align: right"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>1,781,020</B></FONT></TD>
    <TD STYLE="padding-top: 1.65pt; text-align: right"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>1,665,006</B></FONT></TD>
    <TD STYLE="padding-top: 1.65pt; text-align: right"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>7,478,574</B></FONT></TD>
    <TD STYLE="padding-top: 1.65pt; text-align: right"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>17,917,660</B></FONT></TD>
    <TD STYLE="padding-top: 1.65pt; text-align: right"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>100</B></FONT></TD></TR>
  </TABLE>
<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Georgia, Times, Serif; margin-top: 2.75pt; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 23.45pt"></TD><TD STYLE="width: 20.3pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><I>(1)</I></FONT></TD><TD><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><I>Refers to work contracts signed as Assets Lease;</I></FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Georgia, Times, Serif; margin-top: 2.8pt; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 23.45pt"></TD><TD STYLE="width: 18.1pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><I>(2)</I></FONT></TD><TD><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><I>Obligations related to leasing agreements, mainly vehicle
leases.</I></FONT></TD></TR></TABLE>

<P STYLE="font: 9pt Arial, Helvetica, Sans-Serif; margin: 0"><I>&nbsp;</I></P>

<P STYLE="font: 11pt Arial, Helvetica, Sans-Serif; margin: 0"><I>&nbsp;</I></P>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 0 0 0 41.5pt; color: navy"><B>Covenants</B></P>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 0.4pt 0 0"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Arial MT,sans-serif; margin: 0 0 0 55.7pt">The table below shows the most restrictive clauses in 3Q21:</P>

<P STYLE="font: 5pt Arial MT,sans-serif; margin: 0.35pt 0 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 11pt Georgia, Times, Serif; border-collapse: collapse">
  <TR STYLE="vertical-align: top; background-color: #8FA9DB">
    <TD COLSPAN="2" STYLE="border: black 1pt solid; padding-top: 3.2pt; padding-right: 11.9pt; text-align: right"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>Covenants</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 60%; border-left: black 1pt solid; padding-top: 1.7pt; padding-left: 3.45pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Adjusted EBITDA / Adjusted Financial Expenses</FONT></TD>
    <TD STYLE="width: 40%; border-right: black 1pt solid; padding-top: 1.7pt; padding-right: 8.05pt; padding-left: 80pt; text-align: center"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Equal to or higher than 2.80</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-left: black 1pt solid; padding-top: 1.6pt; padding-left: 3.45pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">EBITDA / Financial Expenses Paid</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; padding-top: 1.6pt; padding-right: 8pt; padding-left: 80.05pt; text-align: center"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Equal to or higher than 2.35</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-left: black 1pt solid; padding-top: 1.65pt; padding-left: 3.45pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Adjusted Net Debt / Adjusted EBITDA</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; padding-top: 1.65pt; padding-right: 8.05pt; padding-left: 80pt; text-align: center"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Equal to or lower than 3.80</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-left: black 1pt solid; padding-top: 1.6pt; padding-left: 3.45pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Net Debt / Adjusted EBITDA</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; padding-top: 1.6pt; padding-right: 8.05pt; padding-left: 79.9pt; text-align: center"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Equal to or lower than 3.50</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-left: black 1pt solid; padding-top: 1.65pt; padding-left: 3.45pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Adjusted Total Debt / Adjusted EBITDA</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; padding-top: 1.65pt; padding-right: 8.05pt; padding-left: 80pt; text-align: center"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Lower than 3.65</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-left: black 1pt solid; padding-top: 1.8pt; padding-left: 3.45pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Other Onerous Debt <SUP>(1)</SUP> / Adjusted EBITDA</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; padding-top: 1.8pt; padding-right: 8.05pt; padding-left: 80pt; text-align: center"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Equal to or lower than 1.30</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 2pt; padding-left: 3.45pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Adjusted Current Liquidity</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2pt; padding-right: 8.05pt; padding-left: 79.9pt; text-align: center"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">Higher than 1.00</FONT></TD></TR>
  </TABLE>
<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 55.75pt"></TD><TD STYLE="width: 14.1pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">(1)</FONT></TD><TD STYLE="padding-right: 131.15pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 8pt">&#8220;Other Onerous Debt&#8221; corresponds
to the sum of social security obligations, healthcare plan, installment payment of tax debts, and installment payment of debts with the
electricity supplier.</FONT></TD></TR></TABLE>

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

<P STYLE="font: 12pt Arial MT,sans-serif; margin: 0.25pt 0 0">&nbsp;</P>

<P STYLE="font: 10pt/103% Arial MT,sans-serif; margin: 0 78.6pt 0 41.5pt">As of September 30, 2021, the Company had met the requirements
of its borrowings and financing agreements.</P>


<!-- Field: Page; Sequence: 23 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: right; width: 100%">Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->21<!-- Field: /Sequence --> of 87&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: 85%"><P STYLE="text-align: left; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">ITR - Quarterly Information Form - 9/30/2021 - CIA SANEAMENTO BASICO EST SAO PAULO</P></TD><TD STYLE="text-align: center; width: 15%"><P STYLE="text-align: right; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">Version : 1</P></TD></TR></TABLE><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B>Comments on the Company&rsquo;s Performance</B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 9.5pt Georgia, Times, Serif; margin: 0.2pt 0 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: bold 14pt Arial, Helvetica, Sans-Serif; margin-top: 4.55pt; margin-bottom: 0; color: navy"><TR STYLE="vertical-align: top">
<TD STYLE="width: 34.35pt"></TD><TD STYLE="width: 28.4pt">10.</TD><TD>CAPEX</TD></TR></TABLE>

<P STYLE="font: 10pt/103% Arial MT,sans-serif; margin: 11.95pt 0 0 55.7pt">Investments totaled R$ 1,282.2 million in 3Q21. Cash disbursed
in 3Q21 referring to the Company&#8217;s historical investments, including from previous periods, totaled R$ 1,019.0 million.</P>

<P STYLE="font: 10pt Arial MT,sans-serif; margin: 6.1pt 0 0 55.7pt">The tables below show investments broken down by water, sewage, and
region:</P>

<P STYLE="font: 8.5pt Arial MT,sans-serif; margin: 0.1pt 0 0">&nbsp;</P>

<P STYLE="font: 9pt Arial, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 0; text-align: right"><B><I>R$ million</I></B></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 11pt Georgia, Times, Serif; border-collapse: collapse">
  <TR STYLE="vertical-align: top; background-color: #95B3D7">
    <TD STYLE="width: 55%; border-top: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 1.8pt; padding-left: 3.45pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Investment &#8211; July to September/21</B></FONT></TD>
    <TD STYLE="width: 17%; border-top: black 1pt solid; border-bottom: black 1pt solid; padding-top: 1.8pt; padding-left: 17.2pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Water</B></FONT></TD>
    <TD STYLE="width: 15%; border-top: black 1pt solid; border-bottom: black 1pt solid; padding-top: 1.8pt; padding-left: 9.7pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Sewage</B></FONT></TD>
    <TD STYLE="width: 13%; border-top: black 1pt solid; border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 1.8pt; padding-left: 10.75pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Total</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-left: black 1pt solid; padding-top: 1.85pt; padding-left: 3.45pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Metropolitan Region</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; padding-top: 1.85pt; padding-right: 3pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">352.1</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; padding-top: 1.85pt; padding-right: 2.9pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">656.0</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; padding-top: 1.85pt; padding-right: 2.85pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1,008.1</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 1.75pt; padding-left: 3.45pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Regional Systems</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 1.75pt; padding-right: 3.05pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">107.4</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 1.75pt; padding-right: 3pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">166.7</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 1.75pt; padding-right: 2.9pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">274.1</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 1.8pt; padding-left: 3.45pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Total</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 1.8pt; padding-right: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>459.5</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 1.8pt; padding-right: 2.9pt; text-align: right"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>822.7</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 1.8pt; padding-right: 2.85pt; text-align: right"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>1,282.2</B></FONT></TD></TR>
  </TABLE>
<P STYLE="font: 13.5pt Arial, Helvetica, Sans-Serif; margin: 0.25pt 0 0"><B><I>&nbsp;</I></B></P>

<P STYLE="font: 9pt Arial, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 0; text-align: right"><B><I>R$ million</I></B></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 11pt Georgia, Times, Serif; border-collapse: collapse">
  <TR STYLE="vertical-align: top; background-color: #95B3D7">
    <TD STYLE="width: 55%; border-top: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 1.8pt; padding-left: 3.45pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Investment - January to September/21</B></FONT></TD>
    <TD STYLE="width: 17%; border-top: black 1pt solid; border-bottom: black 1pt solid; padding-top: 1.8pt; padding-left: 17.2pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Water</B></FONT></TD>
    <TD STYLE="width: 15%; border-top: black 1pt solid; border-bottom: black 1pt solid; padding-top: 1.8pt; padding-left: 9.7pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Sewage</B></FONT></TD>
    <TD STYLE="width: 13%; border-top: black 1pt solid; border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 1.8pt; padding-left: 10.75pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Total</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-left: black 1pt solid; padding-top: 1.85pt; padding-left: 3.45pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Metropolitan Region</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; padding-top: 1.85pt; padding-right: 3pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1,143.3</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; padding-top: 1.85pt; padding-right: 2.85pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">1,658.8</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; padding-top: 1.85pt; padding-right: 2.85pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">2,802.1</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 1.75pt; padding-left: 3.45pt"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">Regional Systems</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 1.75pt; padding-right: 3.05pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">381.8</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 1.75pt; padding-right: 3pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">455.9</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 1.75pt; padding-right: 2.9pt; text-align: right"><FONT STYLE="font-family: Arial MT,sans-serif; font-size: 9pt">837.7</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 1.8pt; padding-left: 3.45pt"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>Total</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 1.8pt; padding-right: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>1,525.1</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 1.8pt; padding-right: 2.95pt; text-align: right"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>2,114.7</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 1.8pt; padding-right: 2.85pt; text-align: right"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 9pt"><B>3,639.8</B></FONT></TD></TR>
  </TABLE>

<!-- Field: Page; Sequence: 24; Options: NewSection; Value: 22 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: right; width: 100%">Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->22<!-- Field: /Sequence --> of 87&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: 85%"><P STYLE="text-align: left; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">ITR - Quarterly Information Form - 9/30/2021 - CIA SANEAMENTO BASICO EST SAO PAULO</P></TD><TD STYLE="text-align: center; width: 15%"><P STYLE="text-align: right; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">Version : 1</P></TD></TR></TABLE><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B></B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B>Notes to the Quarterly Information</B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 9.5pt Georgia, Times, Serif; margin: 0.55pt 0 0">&nbsp;</P>

<P STYLE="font: 9.5pt Georgia, Times, Serif; margin: 0.55pt 0 0"></P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 9.5pt"><B>1</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Operations </B></FONT></TD></TR></TABLE>
<P STYLE="font: 9.5pt Georgia, Times, Serif; margin: 0.55pt 0 0">&nbsp;&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">Companhia de Saneamento B&aacute;sico do Estado de S&atilde;o
Paulo (&quot;SABESP&quot; or the &quot;Company&quot;) is a mixed-capital company headquartered in the municipality S&atilde;o Paulo, at
Rua Costa Carvalho, 300, CEP 05429-900, controlled by the S&atilde;o Paulo State. The Company is engaged in the provision of basic and
environmental sanitation services in the S&atilde;o Paulo State and supplies treated water and sewage services on a wholesale basis.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">In addition to providing basic sanitation services in
the S&atilde;o Paulo State, SABESP may perform activities in other states and countries and can operate in drainage, urban cleaning, solid
waste handling, and energy markets. SABESP aims to be a world reference in the provision of sanitation services, in a sustainable, competitive,
and innovative manner, with a focus on customers.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">As of September 30, 2021, the Company operated water
and sewage services in 375 municipalities of the S&atilde;o Paulo State, 342 have already signed contracts, according to Law 11,445/2007.
Most of these municipalities&#8217; operations are based on 30-year concession, program and service contracts, except for the municipalities
of Guarulhos, Mau&aacute;, Santo Andr&eacute;, S&atilde;o Bernardo do Campo, S&atilde;o Jo&atilde;o da Boa Vista, and Tejup&aacute;, which
have a 40-year term.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The table below shows a summary of the contractual situation
of the municipalities served:</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Georgia, Times, Serif; width: 100%; border-collapse: collapse">
  <TR>
    <TD STYLE="vertical-align: bottom; width: 52%; padding-right: 5.4pt; padding-left: 5.4pt; line-height: 110%">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; width: 16%; padding-right: 5.4pt; padding-left: 5.4pt">
<DIV STYLE="padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>September 30,</B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>2021</B></P>
</DIV></TD>
    <TD STYLE="vertical-align: top; width: 16%; padding-right: 5.4pt; padding-left: 5.4pt">
<DIV STYLE="padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>December 31,</B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>2020</B></P>
</DIV></TD>
    <TD STYLE="vertical-align: top; width: 16%; padding-right: 5.4pt; padding-left: 5.4pt">
<DIV STYLE="padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>September 30,</B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>2020</B></P>
</DIV></TD></TR>
  <TR>
    <TD STYLE="vertical-align: bottom; padding-right: 5.4pt; padding-left: 5.4pt; line-height: 110%">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding-right: 5.4pt; padding-left: 5.4pt; text-align: justify; line-height: 110%">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding-right: 5.4pt; padding-left: 5.4pt; text-align: justify; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Total municipalities that have already signed contracts</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">342</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">342</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">342</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">&nbsp;&nbsp;&nbsp;Balance &#8211; intangible and contract assets</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">41,630,815</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">39,440,568</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">39,035,377</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">&nbsp;&nbsp;&nbsp;Percentage of intangible and contract assets</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">93.90%</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">93.08%</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">93.71%</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.65pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Revenue from sanitation services (excluding construction revenue)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">11,512,329</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">14,406,803</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">10,364,110</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.65pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Percentage of revenue from sanitation services (excluding construction revenue)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">95.12%</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">95.05%</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">93.32%</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Municipalities with expired contracts:</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">8</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">8</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">8</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">&nbsp;&nbsp;&nbsp;Balance &#8211; intangible and contract assets</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">215,833</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">264,931</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">216,326</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-left: 7.1pt; line-height: 110%; text-indent: -7.1pt"><FONT STYLE="font-size: 9pt; line-height: 110%">&nbsp;&nbsp;&nbsp;Percentage of intangible and contract assets</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">0.49%</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">0.63%</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">0.52%</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.65pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Revenue from sanitation services (excluding construction revenue)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">29,635</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">39,088</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">28,480</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.65pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Percentage of revenue from sanitation services (excluding construction revenue)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">0.24%</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">0.26%</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">0.26%</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Municipalities with concession agreements due by 2030:</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">25</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">25</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">25</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">&nbsp;&nbsp;&nbsp;Balance &#8211; intangible and contract assets</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">1,148,688</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">1,436,529</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">1,176,822</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">&nbsp;&nbsp;&nbsp;Percentage of intangible and contract assets</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">2.59%</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">3.39%</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">2.83%</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.65pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Revenue from sanitation services (excluding construction revenue)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">471,834</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">597,483</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">433,989</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.65pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Percentage of revenue from sanitation services (excluding construction revenue)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">3.90%</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">3.94%</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">3.91%</FONT></TD></TR>

<TR STYLE="vertical-align: bottom">
    <TD STYLE="width: 52%; padding-right: 5.4pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Municipality of S&atilde;o Paulo:</FONT></TD>
    <TD STYLE="width: 16%; padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="width: 16%; padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="width: 16%; padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-left: 8.65pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Percentage of intangible and contract assets</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">42.87%</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">37.94%</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">42.17%</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-top: 2pt; padding-left: 8.65pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Percentage of revenue from sanitation services (excluding construction revenue)</FONT></TD>
    <TD STYLE="padding-top: 2pt; padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">45.13%</FONT></TD>
    <TD STYLE="padding-top: 2pt; padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">44.58%</FONT></TD>
    <TD STYLE="padding-top: 2pt; padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">44.37%</FONT></TD></TR>
  </TABLE>
<P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P>

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<P STYLE="font: 11pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The Company's shares have been listed on the Novo Mercado
segment of B3 under ticker SBSP3 since April 2002 and on the New York Stock Exchange (NYSE) as American Depositary Receipts (&#8220;ADRs&#8221;)
Level III, under ticker SBS, since May 2002.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">Since 2008, the Company has been setting up partnerships
with other companies, which resulted in the following companies: Sesamm, &Aacute;guas de Andradina, Saneaqua Mairinque, Aquapolo Ambiental,
&Aacute;guas de Castilho, Attend Ambiental, and Paulista Geradora de Energia. Although SABESP has no majority interest in the capital
stock of these companies, the shareholders&#8217; agreements provide for the power of veto and casting vote in certain issues jointly
with associates, indicating the shared control in the management of investees, except for Saneaqua Mairinque, which, as of August 2020,
no longer has a shared control.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify"><B>Economic instability worsened by COVID-19</B></P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The global economic instability worsened with the outbreak
of a new coronavirus in early 2020, which was considered pandemic by the World Health Organization (WHO). Accordingly, SABESP adopted
several measures to ensure the continuity and quality of the services provided to the population, which have become even more essential.
It is worth noting that any interruption in water supply by a basic sanitation company may compromise compliance with WHO&#8217;s recommendations
for everyone to keep good hygiene habits, such as washing hands correctly and more frequently.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The Company implemented several preventive measures so
that its employees are not exposed to situations of risks, such as: (i) employees from the administrative sectors (especially) and those
with more than 60 years of age are working under a remote system; (ii) restriction of domestic and international trips; (iii) anticipation
of influenza and pneumonia vaccination campaigns; (iv) closing of all branches that assist the public, concentrating services in the digital
channels to protect customers and employees; among others.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0 0 6pt; text-align: justify">Regarding the effects of COVID-19 mentioned in
previous quarters, we emphasize the migration of the billed volume of the public, commercial, and industrial categories that have average
tariffs higher than the tariff charged from the residential category, which slightly recovered in the third quarter of 2021 compared to
the same period in 2020.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0 0 6pt; text-align: justify">Expenses with allowance for doubtful accounts are
still rising due to the higher delinquency in the period.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">Management expects that the financial funds raised with
the gradual recovery of the economic activities, improved water security from the works carried out, generation of operational cash, and
credit lines available for investments, will be sufficient to meet the Company&#8217;s commitments and not compromise the necessary investments.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>


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<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 11pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify"><B>New Legal Sanitation Framework</B></P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">On July 15, 2020, the Brazilian President sanctioned
Federal Law 14,026/2020, known as New Legal Framework for Basic Sanitation. The new law expands competition in the sector by extinguishing
program contracts, encourages the region-wise provision of services to promote economies of scale, and provides for strengthening the
service regulation.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">Additionally, the New Legal Framework imposes performance
goals to reach 99% of the population served with drinking water and 90% with sewage collection and treatment by December 31, 2033, encouraging
operators to increase efficiency. The new Law also granted the National Water Agency (ANA) with power to edit reference rules to regulate
sanitation services, aiming to standardize the operation of the regulatory agencies and minimize regulatory uncertainties, thus creating
a more stable and attractive environment for investments in the sector.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">Last May 31, Federal Decree 10,710 was published, regulating
article 10-B of Law 11,445/2007, establishing the methodology for proving the economic and financial capacity of public providers of drinking
water supply and sewage services, to make it possible the compliance with the universalization goals by 2033. Said regulation determines
economic and financial evaluation metrics on service providers to prove their ability to make investments within the intended deadlines,
as well as several conditions for current contracts to be considered regular. Any adjustments to them should be made by March 31, 2022,
in line with paragraph 1 of article 11-B of the new law.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">In this new context, the Company understands it is important
to highlight that: i) it has contracts that already include goals that meet or even anticipate those defined by the New Legal Framework;
ii) it has access to public capital and the private capital market due to its sound reputation, favoring the maintenance and/or expansion
of its operating base and compliance with the universalization of services within the deadline established by the new law; iii) it has
high governance level; and iv) it has current contracts with the granting authorities that ensure 95% of revenue.</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify"><B>Approvals</B></P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The interim information was approved by the Board of
Directors on November 11, 2021.</P>

<P STYLE="font: 10pt/12pt Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>


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<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 11pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 9.5pt"><B>2</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Basis of preparation and presentation of the quarterly information</B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">Presentation of the Interim Financial Information</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The Interim Financial information as of September 30,
2021, was prepared based on the provisions of CPC 21 (R1) &#8211; Interim Financial Information and the international standard IAS 34
&#8211; Interim Financial Reporting, issued by the International Accounting Standards Board (IASB), applicable to the preparation of the
Quarterly Information Form &#8211; ITR and they are fairly presented consistent with the rules issued by the Brazilian Securities and
Exchange Commission (CVM). Accordingly, this Interim Financial Information takes into consideration the Official Letter CVM/SNC/SEP 003
of April 28, 2011, which allows the entities to present selected notes to the financial statements, in cases of redundant information
already disclosed in the Annual Financial Statements. The interim information for September 30, 2021, therefore, does not include all
the notes and reporting required by the annual financial statements, and accordingly, shall be read jointly with the Annual Financial
Statements as of December 31, 2020, prepared pursuant to the International Financial Reporting Standards &#8211; IFRS, issued by the International
Accounting Standards Board &#8211; IASB and pursuant to the accounting practices adopted in Brazil, which observe the pronouncements issued
by the Brazilian Accounting Pronouncements Committee - CPC. Therefore, in this interim financial information, the notes below were either
not presented or are not as detailed as those in the annual financial statements (according to numerical references):</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 3pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 21.3pt"><FONT STYLE="font-size: 10pt">i.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">Summary of significant accounting policies (Note 3);</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 3pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 21.3pt"><FONT STYLE="font-size: 10pt">ii.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">Changes in accounting practices and disclosures (Note 4);</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 3pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 21.3pt"><FONT STYLE="font-size: 10pt">iii.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">Risk management &#8211; financial instruments (Note 5.4);</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 3pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 21.3pt"><FONT STYLE="font-size: 10pt">iv.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">Key accounting estimates and judgments (Note 6);</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 3pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 21.3pt"><FONT STYLE="font-size: 10pt">v.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">Related-party balances and transactions (Note 11);</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 3pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 21.3pt"><FONT STYLE="font-size: 10pt">vi.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">Investments (Note 12);</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 3pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 21.3pt"><FONT STYLE="font-size: 10pt">vii.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">Intangible assets (Note 15);</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 3pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 21.3pt"><FONT STYLE="font-size: 10pt">viii.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">Borrowings and financing (Note 17);</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 3pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 21.3pt"><FONT STYLE="font-size: 10pt">ix.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">Deferred taxes and contributions (Note 19);</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 3pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 21.3pt"><FONT STYLE="font-size: 10pt">x.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">Provisions (Note 20);</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 3pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 21.3pt"><FONT STYLE="font-size: 10pt">xi.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">Employees benefits (Note 21);</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 3pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 21.3pt"><FONT STYLE="font-size: 10pt">xii.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">Equity (Note 24);</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 3pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 21.3pt"><FONT STYLE="font-size: 10pt">xiii.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">Insurance (Note 27);</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">All material information related to the interim financial
information, and this information alone, is being disclosed and corresponds to the information used by the Company&#8217;s Management
in its administration.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The amounts disclosed in the Notes to the interim financial
information are in thousands of Brazilian reais, unless otherwise stated.</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>


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<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 11pt/12pt Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 9.5pt"><B>3</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Summary of significant accounting policies</B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The accounting policies used in the preparation of the
interim financial information for September 30, 2021 are consistent with those used to prepare the Annual Financial Statements for the
year ended December 31, 2020, disclosed on Note 3 of such financial statements.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 9.5pt"><B>4</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Risk management</B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 10pt"><B>4.1</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Financial Risk Management </B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify"><B>Financial risk factors</B></P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The Company's activities are affected by the Brazilian
economic scenario, making it exposed to market risk (exchange rate and interest rate), credit risk, and liquidity risk. Financial risk
management is focused on the unpredictability of financial markets and seeks to minimize potential adverse effects on financial performance.</P>

<P STYLE="font: 9.5pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The Company has not used derivative instruments in any
of the reported periods.</P>

<P STYLE="font: 9.5pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 10pt"><B>(a)</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Market risk</B></FONT></TD></TR></TABLE>

<P STYLE="font: 9.5pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify"><B>Exchange risk</B></P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">Currency exposure implies market risks associated with
currency fluctuations, since the Company has foreign currency-denominated liabilities, arising from long-term funding, in development
institutions, at lower interest rates, in U.S. dollar and Yen.</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The management of the currency exposure considers several
current and projected economic factors, besides the market conditions.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">This risk arises from the possibility that the Company
may incur losses due to exchange rate fluctuations that would impact liability balances of foreign currency-denominated borrowings and
financing and related financial expenses. The Company does not maintain hedge or swap contracts or any derivative financial instrument
to hedge against this risk.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 11pt/110% Georgia, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-size: 10pt">Part of the financial debt,
totaling R$ </FONT><FONT STYLE="font-size: 9pt">3,264,268</FONT> <FONT STYLE="font-size: 10pt">as of September 30, 2021 (R$ 3,563,170
as of December 31, 2020), is indexed to the U.S. dollar and Yen. The exposure to exchange risk is as follows:</FONT></P>


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<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 11pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Georgia, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify; line-height: 110%">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>September 30,
    2021</B></P></TD>
    <TD COLSPAN="2" STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>December 31,
    2020</B></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; width: 49%; padding-bottom: 1pt; text-align: justify; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 13%; padding-left: 5pt">
    <P STYLE="border-bottom: Black 0.5pt solid; font: 9pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 1pt; text-align: center"><B>Foreign currency</B></P></TD>
    <TD STYLE="padding-right: 5pt; text-align: center; white-space: nowrap; width: 13%; padding-left: 5pt">
    <P STYLE="border-bottom: Black 0.5pt solid; font: 9pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 1pt; text-align: center"><B>R$</B></P></TD>
    <TD STYLE="padding-right: 5pt; text-align: center; white-space: nowrap; width: 13%; padding-left: 5pt">
    <P STYLE="border-bottom: Black 0.5pt solid; font: 9pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 1pt; text-align: center"><B>Foreign currency</B></P></TD>
    <TD STYLE="padding-right: 5pt; text-align: center; white-space: nowrap; width: 12%; padding-left: 5pt">
    <P STYLE="border-bottom: Black 0.5pt solid; font: 9pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 1pt; text-align: center"><B>R$</B></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Borrowings and financing &#8211; US$</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">158,151</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">860,247</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">167,479</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">870,338</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Borrowings and financing &#8211; Yen</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">49,125,128</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">2,396,324</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">52,969,560</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">2,671,255</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Interest and charges from borrowings and financing &#8211; US$</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">2,696</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">5,540</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Interest and charges from borrowings and financing &#8211; Yen</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">5,001</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">16,037</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Total exposure</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">3,264,268</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">3,563,170</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Borrowing cost &#8211; US$</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">(18,899)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">(12,342)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Borrowing cost &#8211; Yen</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(2,864)</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(2,966)</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Total foreign currency-denominated borrowings (Note 16)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 2.25pt double">3,242,505</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 2.25pt double">3,547,862</P></TD></TR>
  </TABLE>
<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The 8.6% decrease in the balance of the foreign currency
denominated debt from December 31, 2020 to September 30, 2021 was mainly impacted by the amortization of debt installments and the depreciation
of the Yen against the Brazilian real. The table below shows the exchange variation in the period:</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 11pt Georgia, Times, Serif; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="width: 21%; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center; line-height: 110%">&nbsp;</TD>
    <TD STYLE="width: 30%; padding-right: 5.4pt; padding-left: 5.4pt">
<DIV STYLE="padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>September 30,</B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>2021</B></P>
</DIV></TD>
    <TD STYLE="width: 29%; padding-right: 5.4pt; padding-left: 5.4pt">
<DIV STYLE="padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>December 31,</B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>2020</B></P>
</DIV></TD>
    <TD STYLE="width: 20%; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.5pt solid"><B>Var.</B></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">US$</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">R$ 5.4394</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">R$ 5.1967</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">4.7%</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Yen</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">R$ 0.04878</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">R$ 0.05043</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">-3.3%</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">From January to September 2021, the liabilities of borrowings
and financing agreements fell by R$ 305,357 (increased by R$ 2,135,702 from January to September 2020), from the currency variation of
the borrowings and financing agreements. As of September 30, 2021, if the Brazilian real had depreciated or appreciated by 10 percentage
points against the U.S. dollar and Yen with all other variables held constant, in addition to the impacts already mentioned above, the
effects on the result before taxes for the nine-month period ended September 30, 2021 would have been R$ 326,427 (R$ 372,915 for the nine-month
period ended September 30, 2020), lower or higher, mainly as a result of exchange losses or gains on the translation of foreign currency-denominated
borrowings and financing.</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">Scenario I below presents the effect in the income statements
for the next 12 months, considering the projected rates of the U.S. dollar and the Yen. Considering the other variables as remaining constant,
the impacts of possible depreciations of 25% and 50% in the U.S. dollar and Yen, respectively, are shown in scenarios II and III.</P>


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    <!-- Field: /Page -->

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 11pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The Company understands that the scenarios presented
are reasonable, given the instability of the Brazilian real against the U.S. dollar and the Yen. The appreciation of the U.S. dollar and
the depreciation of the Yen against the Brazilian real came to 4.7% and -3.3%, respectively, in 2021.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Georgia, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="width: 62%; padding-right: 5.4pt; padding-left: 5.4pt; line-height: 110%">&nbsp;</TD>
    <TD STYLE="width: 13%; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.5pt solid"><B>Scenario I (Probable)</B></P></TD>
    <TD STYLE="width: 13%; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.5pt solid"><B>Scenario II (+25%)</B></P></TD>
    <TD STYLE="width: 12%; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.5pt solid"><B>Scenario III (+50%)</B></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(*)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%"><B>Net currency exposure as of September 30, 2021 in US$ - Losses </B></FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">158,151</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">158,151</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">158,151</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">US$ rate as of September 30, 2021</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">5.4394</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">5.4394</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">5.4394</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Exchange rate estimated according to the scenario</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: right; border-bottom: Black 0.5pt solid">5.4250</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: right; border-bottom: Black 0.5pt solid">6.7813</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: right; border-bottom: Black 0.5pt solid">8.1375</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Difference between the rates</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">0.0144</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(1.3419)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(2.6981)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Effect on the net financial result R$ - gain/(loss) </FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">2,277</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(212,223)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(426,707)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%"><B>Net currency exposure as of September 30, 2021 in &yen; &#8211; Losses</B></FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">49,125,128</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">49,125,128</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">49,125,128</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Yen rate as of September 30, 2021</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">0.04878</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">0.04878</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">0.04878</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Exchange rate estimated according to the scenario</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: right; border-bottom: Black 0.5pt solid">0.05065</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: right; border-bottom: Black 0.5pt solid">0.06331</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: right; border-bottom: Black 0.5pt solid">0.07597</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Difference between the rates</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(0.00187)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(0.01453)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(0.02719)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Effect on the net financial result R$ - (loss) </FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: right; border-bottom: Black 0.5pt solid">(91,864)</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: right; border-bottom: Black 0.5pt solid">(713,788)</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: right; border-bottom: Black 0.5pt solid">(1,335,712)</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Total effect on the net financial result in R$ - (loss) </FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: right; border-bottom: Black 1.5pt double">(89,587)</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: right; border-bottom: Black 1.5pt double">(926,011)</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: right; border-bottom: Black 1.5pt double">(1,762,419)</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD COLSPAN="4" STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(*) For the probable scenario in U.S. dollar, the exchange rate estimated for September 30, 2022 was used, according to the BACEN Focus Report of September 30, 2021. For the Yen, the exchange rate estimated for September 30, 2022 was used, according to B3&#8217;s Reference Rates report of September 30, 2021.</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify"><B>Interest rate risk</B></P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">This risk arises from the possibility that the Company
could incur losses due to fluctuations in interest rates, increasing the financial expenses related to borrowings and financing.</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The Company has not entered into any derivative contract
to hedge against this risk; however, it continually monitors market interest rates to evaluate the possible need to replace its debt.</P>


<!-- Field: Page; Sequence: 31 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: right; width: 100%">Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->29<!-- Field: /Sequence --> of 87&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: 85%"><P STYLE="text-align: left; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">ITR - Quarterly Information Form - 9/30/2021 - CIA SANEAMENTO BASICO EST SAO PAULO</P></TD><TD STYLE="text-align: center; width: 15%"><P STYLE="text-align: right; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">Version : 1</P></TD></TR></TABLE><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B></B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B>Notes to the Quarterly Information</B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 11pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The table below provides borrowings and financing subject
to variable interest rates:</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Georgia, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; width: 38%; padding-right: 5.65pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 31%; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>September 30,
    2021</B></P></TD>
    <TD STYLE="padding-right: 5pt; width: 31%; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>December 31,
    2020</B></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.65pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">CDI (i)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">8,562,299</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">7,836,988</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.65pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">TR (ii)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">1,629,083</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">1,619,416</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.65pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">IPCA (iii)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">2,214,241</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">2,176,547</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.65pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">TJLP (iv)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">1,546,949</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">1,517,657</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.65pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">LIBOR (v)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">860,245</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">870,337</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.65pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Interest and charges</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">265,783</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">164,439</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.65pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Total </FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">15,078,600</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">14,185,384</P></TD></TR>
  </TABLE>
<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 1pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0pt"></TD><TD STYLE="width: 35.45pt"><FONT STYLE="font-size: 10pt">(i)</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">CDI - (<I>Certificado de Dep&oacute;sito Interbanc&aacute;rio</I>), an interbank
deposit certificate</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 1pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0pt"></TD><TD STYLE="width: 35.45pt"><FONT STYLE="font-size: 10pt">(ii)</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">TR &#8211; Interest Benchmark Rate</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 1pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0pt"></TD><TD STYLE="width: 35.45pt"><FONT STYLE="font-size: 10pt">(iii)</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">IPCA &#8211; (<I>&Iacute;ndice Nacional de Pre&ccedil;os ao Consumidor Amplo</I>),
a consumer price index</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 1pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0pt"></TD><TD STYLE="width: 35.45pt"><FONT STYLE="font-size: 10pt">(iv)</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">TJLP &#8211; (<I>Taxa de Juros a Longo Prazo</I>), a long-term interest
rate index</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 1pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0pt"></TD><TD STYLE="width: 35.45pt"><FONT STYLE="font-size: 10pt">(v)</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">LIBOR &#8211; London Interbank Offered Rate</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">Another risk to which the Company is exposed is the mismatch
of inflation adjustment indices of its debts with those of its service revenues. Tariff adjustments of services provided do not necessarily
follow the increases in the inflation indexes to adjust borrowings, financing, and interest rates affecting indebtedness.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">As of September 30, 2021, if interest rates on borrowings
and financing had been 1 percentage point higher or lower with all other variables held constant, the effects on profit before taxes for
the nine-month period ended September 30, 2021 would have been R$ 150,786 (R$ 121,217 for the nine-month period ended September 30, 2020),
lower or higher, mainly as a result of lower or higher interest expense on floating rate borrowings and financing.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><B>(b)</B></TD><TD STYLE="text-align: justify"><B>Credit risk</B></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">Credit risk is related to cash and cash equivalents,
financial investments, as well as credit exposures to wholesale basis and retail customers, including accounts receivable, restricted
cash, and accounts receivable from related parties. Credit risk exposure to customers is mitigated by sales to a dispersed base.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The maximum exposure to credit risk as of September 30,
2021 is the carrying amount of instruments classified as cash and cash equivalents, financial investments, restricted cash, trade receivables,
and accounts receivable from related parties on the reporting date. See additional information in Notes 6, 7, 8, 9, and 10.</P>


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    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 85%"><P STYLE="text-align: left; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">ITR - Quarterly Information Form - 9/30/2021 - CIA SANEAMENTO BASICO EST SAO PAULO</P></TD><TD STYLE="text-align: center; width: 15%"><P STYLE="text-align: right; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">Version : 1</P></TD></TR></TABLE><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B></B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B>Notes to the Quarterly Information</B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 11pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">Regarding the financial assets held with financial institutions,
the credit quality was assessed by reference to external credit ratings (if available) or historical information about the bank&#8217;s
default rates. For the credit quality of the banks, such as deposits and financial investments, the Company assesses the rating published
by three main international agencies (Fitch, Moody's and S&amp;P), as follows:</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Georgia, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="width: 37%; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0; border-bottom: Black 0.5pt solid"><B>Banks</B></P></TD>
    <TD STYLE="width: 21%; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.5pt solid"><B>Fitch</B></P></TD>
    <TD STYLE="width: 21%; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.5pt solid"><B>Moody's</B></P></TD>
    <TD STYLE="width: 21%; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.5pt solid"><B>Standard Poor's</B></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-size: 9pt">Banco do Brasil S/A</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right"><FONT STYLE="font-size: 9pt">AA(bra)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right"><FONT STYLE="font-size: 9pt">AAA.br</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right"><FONT STYLE="font-size: 9pt">-</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-size: 9pt">Banco Santander Brasil S/A</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right"><FONT STYLE="font-size: 9pt">-</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right"><FONT STYLE="font-size: 9pt">AAA.br</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right"><FONT STYLE="font-size: 9pt">brAAA</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-size: 9pt">Brazilian Federal Savings Bank</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right"><FONT STYLE="font-size: 9pt">AA(bra)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right"><FONT STYLE="font-size: 9pt">AAA.br</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right"><FONT STYLE="font-size: 9pt">brAAA</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-size: 9pt">Banco Bradesco S/A</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right"><FONT STYLE="font-size: 9pt">AAA(bra)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right"><FONT STYLE="font-size: 9pt">AAA.br</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right"><FONT STYLE="font-size: 9pt">brAAA</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-size: 9pt">Banco Ita&uacute; Unibanco S/A</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right"><FONT STYLE="font-size: 9pt">AAA(bra)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right"><FONT STYLE="font-size: 9pt">AAA.br</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right"><FONT STYLE="font-size: 9pt">brAAA</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-size: 9pt">Banco BV</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right"><FONT STYLE="font-size: 9pt">-</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right"><FONT STYLE="font-size: 9pt">AA.br</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right"><FONT STYLE="font-size: 9pt">brAAA</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt"><FONT STYLE="font-size: 9pt">Banco BTG Pactual S/A</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right"><FONT STYLE="font-size: 9pt">AA(bra)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right"><FONT STYLE="font-size: 9pt">AAA.br</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right"><FONT STYLE="font-size: 9pt">brAA+</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The rating assessment disclosed by Fitch for deposit
transactions and financial investments in local currency (R$ - domestic rating) is as follows:</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Georgia, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="width: 46%; padding-right: 5.4pt; padding-left: 5.4pt; line-height: 110%">&nbsp;</TD>
    <TD STYLE="width: 27%; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.5pt solid"><B>September 30, 2021</B></P></TD>
    <TD STYLE="width: 27%; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.5pt solid"><B>December 31, 2020</B></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Cash and cash equivalents and financial investments</FONT></TD>
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">AA(bra)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">2,954,930</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">2,662,685</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">AAA(bra)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">920,128</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">891,243</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Others (*)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">272,587</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">253,619</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">4,147,645</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">3,807,547</P></TD></TR>
  </TABLE>
<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">(*) As of September 30, 2021, this category includes
R$ 258,358 (R$ 253,066 as of December 31, 2020) referring to Banco BV, checking accounts, and financial investments, which are not rated
by Fitch.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 10pt"><B>(c)</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Liquidity risk </B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">Liquidity is primarily reliant upon cash provided by
operating activities and borrowings and financing obtained in the local and international capital markets, as well as the payment of debts.
The management of this risk considers the assessment of its liquidity requirements to ensure it has sufficient cash to meet its operating
and capital expenditures needs.</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The funds held are invested in interest-bearing current
accounts, time deposits, and securities, with instruments with appropriate maturity or liquidity sufficient to provide margin as determined
by the projections mentioned above.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The table below shows the financial liabilities, by maturity,
including the installments of principal and future interest. For agreements with floating interest rates, the interest rates used correspond
to the base date of September 30, 2021.</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>


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    <!-- Field: /Page -->

<P STYLE="font: 11pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Georgia, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; width: 37%; padding-bottom: 1pt; text-align: justify; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 9%; padding-left: 5pt">
    <P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>October to December
    2021</B></P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 9%; padding-left: 5pt">
    <P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>2022</B></P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 9%; padding-left: 5pt">
    <P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>2023</B></P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 9%; padding-left: 5pt">
    <P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>2024</B></P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 9%; padding-left: 5pt">
    <P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>2025</B></P></TD>
    <TD STYLE="padding-right: 5pt; width: 9%; padding-left: 5pt">
    <P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>2026 onwards</B></P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 9%; padding-left: 5pt">
    <P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Total</B></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%"><B>September 30, 2021</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">Liabilities</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">Borrowings and financing</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">2,127,577</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">2,390,773</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">2,393,787</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">2,619,429</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">2,408,011</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">12,344,773</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">24,284,350</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">Suppliers</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">257,195</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">-</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">257,195</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">Services payable</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">529,210</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">-</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">529,210</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">Public-Private Partnership - PPP</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">98,946</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">401,684</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">411,734</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">399,900</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">353,053</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">4,363,097</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">6,028,414</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">Program Contract Commitments</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">101,405</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">35,407</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">35,407</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">1,099</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">1,099</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">13,779</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">188,196</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">Cross default</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The Company has borrowings and financing agreements including
cross-default clauses, i.e., the early maturity of any debt may imply the early maturity of these agreements. The indicators are continuously
monitored to avoid the execution of these clauses, and the most restrictive are shown in Note 16 (c).</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><B>(d)</B></TD><TD STYLE="text-align: justify"><B>Sensitivity analysis on interest rate risk</B></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The table below shows the sensitivity analysis of the
financial instruments, prepared in accordance CPC 40, to evidence the balances of main financial assets and liabilities, calculated at
a rate projected for a future period after September 30, 2021, or until the final settlement of each contract, whichever is shorter, considering
a probable scenario (Scenario I), with additions of 25% (Scenario II) and 50% (Scenario III).</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The purpose of the sensitivity analysis is to measure
the impact of changes in the market over the financial instruments, considering constant all other variables. At the time of settlement,
the amounts can be different from those presented, due to the estimates used in the measurement.</P>


<!-- Field: Page; Sequence: 34 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: right; width: 100%">Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->32<!-- Field: /Sequence --> of 87&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: 85%"><P STYLE="text-align: left; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">ITR - Quarterly Information Form - 9/30/2021 - CIA SANEAMENTO BASICO EST SAO PAULO</P></TD><TD STYLE="text-align: center; width: 15%"><P STYLE="text-align: right; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">Version : 1</P></TD></TR></TABLE><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B></B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B>Notes to the Quarterly Information</B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 11pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Georgia, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
    <TD COLSPAN="5" STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>September 30,
    2021</B></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; width: 30%; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; border-bottom: Black 0.5pt solid"><B>Indicators</B></P></TD>
    <TD STYLE="width: 19%; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Exposure</B></P></TD>
    <TD STYLE="width: 20%; padding-right: 5.4pt; padding-left: 5.4pt">
<DIV STYLE="padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>Scenario I</B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>(Probable) (i)</B></P>
</DIV></TD>
    <TD STYLE="white-space: nowrap; width: 15%; padding-right: 5.4pt; padding-left: 5.4pt">
<DIV STYLE="padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>Scenario II</B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>25%</B></P>
</DIV></TD>
    <TD STYLE="white-space: nowrap; width: 16%; padding-right: 5.4pt; padding-left: 5.4pt">
<DIV STYLE="padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>Scenario III</B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>50%</B></P>
</DIV></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%"><B>Assets</B></FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">CDI</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">4,055,805</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">8.9900%(**)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">11.2375%</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">13.4850%</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Financial income</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">364,617</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">455,771</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">546,925</FONT></TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%"><B>Liabilities</B></FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">CDI </FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(8,562,299)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">8.9900%(**)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">11.2375%</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">13.4850%</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Interest to be incurred</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(769,751)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(962,188)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(1,154,626)</FONT></TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">&nbsp;</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
<!-- Field: Rule-Page --><DIV STYLE="margin-top: 1pt; margin-bottom: 1pt; width: 100%"><DIV STYLE="font-size: 1pt; border-top: Black 0.5pt solid">&nbsp;</DIV></DIV><!-- Field: /Rule-Page --></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt">
<!-- Field: Rule-Page --><DIV STYLE="margin-top: 1pt; margin-bottom: 1pt; width: 100%"><DIV STYLE="font-size: 1pt; border-top: Black 0.5pt solid">&nbsp;</DIV></DIV><!-- Field: /Rule-Page --></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt">
<!-- Field: Rule-Page --><DIV STYLE="margin-top: 1pt; margin-bottom: 1pt; width: 100%"><DIV STYLE="font-size: 1pt; border-top: Black 0.5pt solid">&nbsp;</DIV></DIV><!-- Field: /Rule-Page --></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt">
<!-- Field: Rule-Page --><DIV STYLE="margin-top: 1pt; margin-bottom: 1pt; width: 100%"><DIV STYLE="font-size: 1pt; border-top: Black 0.5pt solid">&nbsp;</DIV></DIV><!-- Field: /Rule-Page --></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">CDI net exposure</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(4,506,494)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(405,134)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(506,417)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(607,701)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%"><B>Liabilities</B></FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">TR</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(1,629,083)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">0.0096%(**)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">0.0120%</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">0.0144%</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Expenses to be incurred </FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(156)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(195)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(235)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">IPCA</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(2,214,241)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">4.1234%(*)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">5.1543%</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">6.1851%</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Expenses to be incurred </FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(91,302)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(114,129)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(136,953)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">TJLP</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(1,546,949)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">5.5600%(***)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">6.9500%</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">8.3400%</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Interest to be incurred</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(86,010)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(107,513)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(129,016)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">LIBOR </FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(860,245)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">0.1740%(**)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">0.2175%</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">0.2610%</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Interest to be incurred</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(1,497)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(1,871)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(2,245)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">&nbsp;</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt">
<!-- Field: Rule-Page --><DIV STYLE="margin-top: 1pt; margin-bottom: 1pt; width: 100%"><DIV STYLE="font-size: 1pt; border-top: Black 0.5pt solid">&nbsp;</DIV></DIV><!-- Field: /Rule-Page --></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt">
<!-- Field: Rule-Page --><DIV STYLE="margin-top: 1pt; margin-bottom: 1pt; width: 100%"><DIV STYLE="font-size: 1pt; border-top: Black 0.5pt solid">&nbsp;</DIV></DIV><!-- Field: /Rule-Page --></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt">
<!-- Field: Rule-Page --><DIV STYLE="margin-top: 1pt; margin-bottom: 1pt; width: 100%"><DIV STYLE="font-size: 1pt; border-top: Black 0.5pt solid">&nbsp;</DIV></DIV><!-- Field: /Rule-Page --></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Total expenses to be incurred, net</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">(584,099)</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">(730,125)</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">(876,150)</P></TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR>
    <TD COLSPAN="5" STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(*)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Source: Focus-BACEN Report of September 30, 2021</FONT></TD></TR>
  <TR>
    <TD COLSPAN="5" STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(**)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Source: B3 of September 30, 2021 </FONT></TD></TR>
  <TR>
    <TD COLSPAN="5" STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(***)&nbsp;&nbsp;&nbsp;Source: LCA Consultores of September 30, 2021</FONT></TD></TR>
  <TR>
    <TD COLSPAN="5" STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%">&nbsp;</TD></TR>
  </TABLE>
<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 3pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 7.1pt"></TD><TD STYLE="width: 14.2pt"><FONT STYLE="font-size: 10pt">(i)</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">Refers to the scenario of the projected interest to be incurred for the
12 months as of September 30, 2021, or until the maturity of the agreements, whichever is shorter.</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>


<!-- Field: Page; Sequence: 35 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: right; width: 100%">Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->33<!-- Field: /Sequence --> of 87&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: 85%"><P STYLE="text-align: left; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">ITR - Quarterly Information Form - 9/30/2021 - CIA SANEAMENTO BASICO EST SAO PAULO</P></TD><TD STYLE="text-align: center; width: 15%"><P STYLE="text-align: right; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">Version : 1</P></TD></TR></TABLE><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B></B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B>Notes to the Quarterly Information</B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

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

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 10pt"><B>4.2</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Capital management </B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The Company&#8217;s objectives when managing capital
are to ensure its ability to increase investments in infrastructure, provide returns for shareholders and benefits for other stakeholders,
and maintain an optimal capital structure to reduce the cost of capital.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">Capital is monitored based on the leverage ratio, which
corresponds to net debt divided by total capital (shareholders and creditor&#8217;s equity). Net debt corresponds to total borrowings
and financing less cash and cash equivalents and financial investments. Total capital is calculated as total equity plus net debt, as
shown in the statement of financial position.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Georgia, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; width: 48%; text-align: justify">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 26%; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.5pt solid"><B>September 30, 2021</B></P></TD>
    <TD STYLE="padding-right: 5pt; width: 26%; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.5pt solid"><B>December 31, 2020</B></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; text-align: justify">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt"><B>&nbsp;</B></FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt"><B>&nbsp;</B></FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 2pt; text-align: justify"><FONT STYLE="font-size: 9pt">Total borrowings and financing (Note 16)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 2pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">17,917,660</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">17,258,624</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 2pt; text-align: justify"><FONT STYLE="font-size: 9pt">(-) Cash and cash equivalents (Note 6)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 2pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(2,402,028)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(396,401)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 2pt; text-align: justify"><FONT STYLE="font-size: 9pt">(-) Financial investments (Note 7)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 2pt; text-align: right; border-bottom: Black 0.5pt solid">(1,745,617)</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 2pt; text-align: right; border-bottom: Black 0.5pt solid">(3,411,146)</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 2pt; text-align: justify">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 2pt; padding-left: 5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2pt; padding-left: 5pt; text-align: right">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 2pt; text-align: justify"><FONT STYLE="font-size: 9pt">Net debt</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 2pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">13,770,015</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">13,451,077</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 2pt; text-align: justify"><FONT STYLE="font-size: 9pt">Total equity</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 2pt; text-align: right; border-bottom: Black 0.5pt solid">24,505,769</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 2pt; text-align: right; border-bottom: Black 0.5pt solid">22,793,704</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 2pt; text-align: justify">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 2pt; padding-left: 5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2pt; padding-left: 5pt; text-align: right">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 2pt; text-align: justify"><FONT STYLE="font-size: 9pt">Total (shareholders plus creditor&#8217;s equity)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 2pt; text-align: right; border-bottom: Black 0.5pt solid">38,275,784</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 2pt; text-align: right; border-bottom: Black 0.5pt solid">36,244,781</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 2pt; text-align: justify">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 2pt; padding-left: 5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2pt; padding-left: 5pt; text-align: right">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 2pt; text-align: justify"><FONT STYLE="font-size: 9pt">Leverage ratio</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 2pt; text-align: right; border-bottom: Black 1.5pt double">36%</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 2pt; text-align: right; border-bottom: Black 1.5pt double">37%</P></TD></TR>
  </TABLE>
<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">As of September 30, 2021, the leverage ratio fell to
36%, compared to 37% as of December 31, 2020, mainly due to the profit recorded from January to September 2021, of R$ 1,738,441.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 10pt"><B>4.3</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Fair value estimates</B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The Company considers that balances from trade receivables
(current) and trade payables by carrying amount less impairment approximate their fair values, considering the short maturity. Long-term
trade receivables also approximate their fair values, as they will be adjusted by inflation and/or will bear contractual interest rates
over time.</P>


<!-- Field: Page; Sequence: 36 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: right; width: 100%">Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->34<!-- Field: /Sequence --> of 87&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: 85%"><P STYLE="text-align: left; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">ITR - Quarterly Information Form - 9/30/2021 - CIA SANEAMENTO BASICO EST SAO PAULO</P></TD><TD STYLE="text-align: center; width: 15%"><P STYLE="text-align: right; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">Version : 1</P></TD></TR></TABLE><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B></B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B>Notes to the Quarterly Information</B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 10pt"><B>4.4</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Financial instruments</B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The Company did not have financial assets classified
as fair value through other comprehensive income and fair value through profit or loss. The financial instruments included in the amortized
cost category comprise cash and cash equivalents, financial investments, restricted cash, trade receivables, balances with related parties,
other assets and balances receivable from the Water National Agency (ANA), accounts payable to suppliers, borrowings and financing, services
payable, balances payable deriving from the Public-Private Partnership (PPP) and program contract commitments, which are non-derivative
financial assets and liabilities with fixed or determinable payments, not quoted in an active market, except for cash equivalents and
financial investments.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The estimated fair values of the financial instruments
are as follows:</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">Financial Assets</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Georgia, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: center">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>September 30, 2021</B></P></TD>
    <TD COLSPAN="2" STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>December 31, 2020</B></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; width: 40%; padding-bottom: 1pt; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 15%; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Carrying amount</B></P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 15%; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Fair value</B></P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 15%; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Carrying amount</B></P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 15%; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Fair value</B></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify"><FONT STYLE="font-size: 9pt">&#9;Cash and cash equivalents</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">2,402,028</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">2,402,028</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">396,401</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">396,401</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify"><FONT STYLE="font-size: 9pt">&#9;Financial investments</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">1,745,617</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">1,745,617</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">3,411,146</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">3,411,146</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify"><FONT STYLE="font-size: 9pt">&#9;Restricted cash</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">26,832</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">26,832</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">35,742</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">35,742</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify"><FONT STYLE="font-size: 9pt">&#9;Trade receivables</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">2,758,454</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">2,758,454</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">2,450,986</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">2,450,986</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify"><FONT STYLE="font-size: 9pt">&#9;ANA </FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">21,093</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">21,093</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">26,463</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">26,463</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify"><FONT STYLE="font-size: 9pt">&#9;Other assets </FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">248,163</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">248,163</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">246,110</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">246,110</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">Additionally, SABESP has financial assets receivable
from related parties, totaling R$ 839,842 as of September 30, 2021 (R$ 806,645 as of December 31, 2020), which were calculated under the
conditions negotiated between the related parties. The conditions and additional information related to these financial instruments are
disclosed in Note 10. Part of this balance, totaling R$ 745,765 (R$ 732,391 as of December 31, 2020), refers to reimbursement of additional
retirement and pension plan - G0, indexed by IPCA plus simple interest of 0.5% p.m. On the transaction date, this interest rate approximated
that of National Treasury Notes (NTN-b), with a term similar to the terms of related-party transactions.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">Financial Liabilities</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Georgia, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: center">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>September 30, 2021</B></P></TD>
    <TD COLSPAN="2" STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>December 31, 2020</B></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; width: 40%; padding-bottom: 1pt; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 15%; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Carrying amount</B></P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 15%; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Fair value</B></P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 15%; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Carrying amount</B></P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 15%; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Fair value</B></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify"><FONT STYLE="font-size: 9pt">&#9;Borrowings and financing</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">17,917,660</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">18,156,355</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">17,258,624</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">17,702,649</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify"><FONT STYLE="font-size: 9pt">&#9;Suppliers</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">257,195</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">257,195</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">263,741</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">263,741</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify"><FONT STYLE="font-size: 9pt">&#9;Services payable</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">529,210</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">529,210</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">453,750</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">453,750</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify"><FONT STYLE="font-size: 9pt">&#9;Program Contract Commitment</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">178,953</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">178,953</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">231,480</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">231,480</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify"><FONT STYLE="font-size: 9pt">&#9;Public-Private Partnership - PPP</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">3,085,587</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">3,085,587</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">3,175,273</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">3,175,273</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>


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    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 85%"><P STYLE="text-align: left; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">ITR - Quarterly Information Form - 9/30/2021 - CIA SANEAMENTO BASICO EST SAO PAULO</P></TD><TD STYLE="text-align: center; width: 15%"><P STYLE="text-align: right; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">Version : 1</P></TD></TR></TABLE><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B></B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B>Notes to the Quarterly Information</B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The criteria adopted to obtain the fair values of borrowings
and financing, in preparing the interim financial information as of September 30, 2021, are consistent with those adopted in the Annual
Financial Statements for the fiscal year ended December 31, 2020.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">Financial instruments referring to financial investments
and borrowings and financing are classified as Level 2 in the fair value hierarchy.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">Considering the nature of other financial instruments,
assets and liabilities, the balances recognized in the statement of financial position approximate the fair values, except for borrowings
and financing, considering the maturities close to the end of the reporting date, comparison of contractual interest rates with market
rates in similar operations at the end of the reporting period, their nature, and maturity terms.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 9.5pt"><B>5</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Key accounting estimates and judgments</B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The preparation of the interim financial information
requires Management to make judgments (except for those that involve assumptions) that have a significant impact on the amounts recognized
based on experience and other factors deemed as relevant, which affect the values of assets and liabilities, and present results that
may differ from the actual ones.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The Company makes estimates and assumptions concerning
the future, which are reviewed on a timely basis. Such accounting estimates, by definition, may differ from the actual results. The effects
from the reviews of the accounting estimates are recognized in the period in which the estimates are reviewed.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The Company evaluated the main accounting policies that
involve judgment, except for those that involve estimates, and concluded that none of them have a significant effect.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The areas that require a higher level of judgment and
greater complexity, as well as those in which assumptions and estimates are significant for the quarterly information, are: (i) allowance
for doubtful accounts; (ii) intangible assets arising from concession agreements and program contracts; (iii) pension plan obligations
- pension plans; (iv) deferred income tax and social contribution; (v) provisions; and (vi) unbilled revenue.</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0"><FONT STYLE="letter-spacing: -0.1pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="letter-spacing: -0.1pt">&nbsp;</FONT></P>

<P STYLE="font: 12pt/110% Arial, Helvetica, Sans-Serif; margin: 0; text-align: justify"></P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 9.5pt"><B>6</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Cash and cash equivalents </B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="letter-spacing: -0.1pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 11pt Georgia, Times, Serif; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; width: 38%; padding-bottom: 1pt; text-align: justify">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 31%; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>September 30, 2021</B></P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 31%; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>December 31, 2020</B></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; text-align: justify">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-left: 5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-left: 5pt; text-align: right">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify"><FONT STYLE="font-size: 9pt">Cash and banks</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">78,827</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">74,033</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify"><FONT STYLE="font-size: 9pt">Cash equivalents</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">2,323,201</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">322,368</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify"><FONT STYLE="font-size: 9pt">Total</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">2,402,028</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">396,401</P></TD></TR>
  </TABLE>
<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">Cash and cash equivalents include cash, bank deposits,
and high-liquidity short-term financial investments, mainly represented by repurchase agreements, fund shares (accruing CDI interest rates),
and CDBs, whose original maturities or intention of realization are lower than three months, which are convertible into a cash amount
and subject to an insignificant risk of change in value.</P>


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    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 85%"><P STYLE="text-align: left; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">ITR - Quarterly Information Form - 9/30/2021 - CIA SANEAMENTO BASICO EST SAO PAULO</P></TD><TD STYLE="text-align: center; width: 15%"><P STYLE="text-align: right; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">Version : 1</P></TD></TR></TABLE><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B></B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B>Notes to the Quarterly Information</B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 11pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">As of September 30, 2021, the average yield of financial
investments corresponded to 96.00% of CDI (95.82% as of December 31, 2020).</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 12pt/110% Arial, Helvetica, Sans-Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Georgia, Times, Serif; font-size: 9.5pt"><B></B></FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 9.5pt"><B>7</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Financial investments</B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The Company has financial investments in CDB, with daily
liquidity, which it does not intend to use in the next three months, as shown below:</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 11pt Georgia, Times, Serif; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="width: 44%; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; line-height: 110%">&nbsp;</TD>
    <TD STYLE="width: 28%; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>September 30,
    2021</B></P></TD>
    <TD STYLE="width: 28%; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>December 31,
    2020</B></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Banco BV </FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">258,358</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">253,066</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Banco Ita&uacute; S/A </FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">361,451</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">354,296</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Banco Bradesco S/A </FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">516,655</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">506,136</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Banco BTG Pactual S/A </FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">361,664</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">354,299</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Banco do Brasil S/A </FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">247,489</P></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">1,943,349</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">1,745,617</P></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">3,411,146</P></TD></TR>
  </TABLE>
<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0">As of September 30, 2021, the average yield of the financial investments corresponded
to 101.57% of CDI (98.95% as of December 31, 2020).</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 12pt/110% Arial, Helvetica, Sans-Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Georgia, Times, Serif; font-size: 9.5pt"><B></B></FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 9.5pt"><B>8</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Restricted cash</B></FONT></TD></TR></TABLE>
<P STYLE="font: 12pt/110% Arial, Helvetica, Sans-Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Georgia, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; width: 46%; padding-bottom: 1pt; text-align: justify">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 27%; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>September 30, 2021</B></P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 27%; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>December 31, 2020</B></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify"><FONT STYLE="font-size: 9pt">Agreement with the S&atilde;o Paulo municipal government (i)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 9pt">20,431</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 9pt">29,599</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify"><FONT STYLE="font-size: 9pt">Brazilian Federal Savings Bank &#8211; escrow deposits (ii)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 9pt">216</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 9pt">272</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify"><FONT STYLE="font-size: 9pt">Other</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">6,185</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">5,871</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">26,832</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">35,742</P></TD></TR>
  </TABLE>
<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 6pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 19.3pt"><FONT STYLE="font-size: 10pt">(i)</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">Refers to the amount deducted from the transfer of 7.5% of the revenue earned
in the municipality to the Municipal Fund for Environmental Sanitation and Infrastructure, corresponding to eventual amounts unpaid by
direct management bodies, foundations, and government agencies, as established in the agreement entered into with the S&atilde;o Paulo
municipal government; and</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 19.3pt"><FONT STYLE="font-size: 10pt">(ii)</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">Refers to the savings account intended to receive escrow deposits from lawsuits
with final and unappealable decisions in favor of the Company, which are blocked under the contractual clause.</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>


<!-- Field: Page; Sequence: 39 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: right; width: 100%">Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->37<!-- Field: /Sequence --> of 87&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: 85%"><P STYLE="text-align: left; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">ITR - Quarterly Information Form - 9/30/2021 - CIA SANEAMENTO BASICO EST SAO PAULO</P></TD><TD STYLE="text-align: center; width: 15%"><P STYLE="text-align: right; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">Version : 1</P></TD></TR></TABLE><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B></B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B>Notes to the Quarterly Information</B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 12pt/110% Arial, Helvetica, Sans-Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Georgia, Times, Serif; font-size: 9.5pt"><B></B></FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 9.5pt"><B>9</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Trade receivables </B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 10pt"><B>(a)</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Statement of financial position details</B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify"><B>&nbsp;</B></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Georgia, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="width: 48%; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; line-height: 110%">&nbsp;</TD>
    <TD STYLE="width: 26%; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>September 30,
    2021</B></P></TD>
    <TD STYLE="width: 26%; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>December 31,
    2020</B></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Private sector:</FONT></TD>
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">General (i) and special customers (ii)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">2,138,207</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">1,663,738</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Agreements (iii)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">467,299</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">398,367</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">2,605,506</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">2,062,105</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Government entities:</FONT></TD>
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Municipal</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">467,559</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">473,201</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Federal</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">7,714</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">3,859</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Agreements (iii)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">438,686</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">333,740</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">913,959</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">810,800</P></TD></TR>
  <TR>
    <TD STYLE="vertical-align: bottom; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Wholesale customers &#8211; Municipal governments: (iv)</FONT></TD>
    <TD STYLE="vertical-align: top; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Mogi das Cruzes</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">3,631</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">3,582</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">S&atilde;o Caetano do Sul</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">16,516</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">18,808</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Total wholesale customers &#8211; Municipal governments</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">20,147</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">22,390</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Unbilled supply</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">466,622</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">713,310</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Subtotal</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">4,006,234</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">3,608,605</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Allowance for doubtful accounts</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(1,247,780)</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(1,157,619)</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Total </FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">2,758,454</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">2,450,986</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Current</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">2,453,684</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">2,204,029</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Noncurrent</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">304,770</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">246,957</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">2,758,454</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">2,450,986</P></TD></TR>
  </TABLE>
<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0 0 0 14.2pt; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 10pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 28.35pt"><FONT STYLE="font-size: 10pt">(i)</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">General customers - residential, and small and mid-sized companies;</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 10pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 28.35pt"><FONT STYLE="font-size: 10pt">(ii)</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">Special customers &#8211; large consumers, commercial industries, condominiums,
and special billing customers (fixed demand agreements, industrial waste, wells, among others);</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 10pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 28.35pt"><FONT STYLE="font-size: 10pt">(iii)</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">Agreements - installment payments of past-due receivables, plus inflation
adjustment and interest, according to the agreements; and</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 10pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 28.35pt"><FONT STYLE="font-size: 10pt">(iv)</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">Wholesale basis customers - municipal governments. This balance refers to
the sale of treated water to municipalities, which are responsible for distributing to, billing, and charging final customers.</FONT></TD></TR></TABLE>


<!-- Field: Page; Sequence: 40 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: right; width: 100%">Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->38<!-- Field: /Sequence --> of 87&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: 85%"><P STYLE="text-align: left; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">ITR - Quarterly Information Form - 9/30/2021 - CIA SANEAMENTO BASICO EST SAO PAULO</P></TD><TD STYLE="text-align: center; width: 15%"><P STYLE="text-align: right; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">Version : 1</P></TD></TR></TABLE><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B></B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B>Notes to the Quarterly Information</B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 11pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 10pt"><B>(b)</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>The aging of trade receivables is as follows:</B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="letter-spacing: -0.1pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Georgia, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; width: 38%; padding-bottom: 1pt; text-align: justify; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 31%; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>September 30,
    2021</B></P></TD>
    <TD STYLE="padding-right: 5pt; width: 31%; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>December 31,
    2020</B></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: justify; line-height: 110%; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: justify; line-height: 110%; padding-left: 5pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Current</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">1,986,560</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">1,793,104</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Past-due:</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Up to 30 days</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">384,321</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">340,760</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">From 31 to 60 days</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">211,599</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">177,103</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">From 61 to 90 days</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">138,560</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">120,488</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">From 91 to 120 days</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">119,723</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">88,323</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">From 121 to 180 days</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">177,974</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">113,060</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">From 181 to 360 days</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">54,795</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">82,365</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Over 360 days</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">932,702</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">893,402</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Total past-due</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">2,019,674</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">1,815,501</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Total </FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">4,006,234</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">3,608,605</P></TD></TR>
  </TABLE>
<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">The increase in the past-due balance was mainly due to higher delinquency of the
private sector.</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 10pt"><B>(c)</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Allowance for doubtful accounts </B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Georgia, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; width: 46%; padding-bottom: 1pt; text-align: justify; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 27%; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>January to September
    2021</B></P></TD>
    <TD STYLE="padding-right: 5pt; width: 27%; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>January to September
    2020</B></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: justify; line-height: 110%; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: justify; line-height: 110%; padding-left: 5pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Balance at the beginning of the period</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">1,157,619</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">1,042,015</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Additions</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">131,918</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">151,947</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Recoveries </FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(41,757)</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(53,471)</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Balance at the end of the period</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">1,247,780</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">1,140,491</P></TD></TR>
  </TABLE>
<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Georgia, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; width: 40%; padding-bottom: 1pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%"><B>Reconciliation of estimated/historical losses at the result</B></FONT></TD>
    <TD STYLE="padding-right: 5pt; width: 15%; padding-left: 5pt">
<DIV STYLE="margin-right: 2.85pt; margin-left: 2.85pt; padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>July to September</B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>2021</B></P>
</DIV></TD>
    <TD STYLE="padding-right: 5pt; width: 15%; padding-left: 5pt">
<DIV STYLE="margin-right: 2.85pt; margin-left: 2.85pt; padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>January to September</B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>2021</B></P>
</DIV></TD>
    <TD STYLE="padding-right: 5pt; width: 15%; padding-left: 5pt">
<DIV STYLE="margin-right: 2.85pt; margin-left: 2.85pt; padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>July to </B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>September 2020</B></P>
</DIV></TD>
    <TD STYLE="padding-right: 5pt; width: 15%; padding-left: 5pt">
<DIV STYLE="margin-right: 2.85pt; margin-left: 2.85pt; padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>January to </B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>September 2020</B></P>
</DIV></TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-bottom: 1pt; text-align: justify; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; vertical-align: bottom; padding-bottom: 1pt; text-align: justify; line-height: 110%; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; vertical-align: top; padding-bottom: 1pt; text-align: justify; line-height: 110%; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; vertical-align: bottom; padding-bottom: 1pt; text-align: justify; line-height: 110%; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; vertical-align: bottom; padding-bottom: 1pt; text-align: justify; line-height: 110%; padding-left: 5pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 3pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Write-offs</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 3pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">(135,100)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 3pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">(291,601)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 3pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">(140,579)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 3pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">(244,926)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 3pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(Losses)/reversal with state entities &#8211; related parties </FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 3pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">(1,356)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 3pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">(1,949)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 3pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">1,154</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 3pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">(6,389)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 3pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(Losses) with the private sector/government entities</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 3pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">(1,844)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 3pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">(131,918)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 3pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">41,348</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 3pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">(151,947)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 3pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Recoveries</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 3pt; text-align: right; border-bottom: Black 0.5pt solid">19,741</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 3pt; text-align: right; border-bottom: Black 0.5pt solid">41,757</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 3pt; text-align: right; border-bottom: Black 0.5pt solid">22,952</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 3pt; text-align: right; border-bottom: Black 0.5pt solid">53,471</P></TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-bottom: 1pt; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; vertical-align: bottom; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; vertical-align: top; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; vertical-align: bottom; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; vertical-align: bottom; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-bottom: 3pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Amount recorded as expense (Note 27)</FONT></TD>
    <TD STYLE="padding-right: 5pt; vertical-align: bottom; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 3pt; text-align: right; border-bottom: Black 1.5pt double">(118,559)</P></TD>
    <TD STYLE="padding-right: 5pt; vertical-align: top; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 3pt; text-align: right; border-bottom: Black 1.5pt double">(383,711)</P></TD>
    <TD STYLE="padding-right: 5pt; vertical-align: bottom; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 3pt; text-align: right; border-bottom: Black 1.5pt double">(75,125)</P></TD>
    <TD STYLE="padding-right: 5pt; vertical-align: bottom; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 3pt; text-align: right; border-bottom: Black 1.5pt double">(349,791)</P></TD></TR>
  </TABLE>

<!-- Field: Page; Sequence: 41 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: right; width: 100%">Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->39<!-- Field: /Sequence --> of 87&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: 85%"><P STYLE="text-align: left; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">ITR - Quarterly Information Form - 9/30/2021 - CIA SANEAMENTO BASICO EST SAO PAULO</P></TD><TD STYLE="text-align: center; width: 15%"><P STYLE="text-align: right; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">Version : 1</P></TD></TR></TABLE><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B></B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B>Notes to the Quarterly Information</B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

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<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The Company does not have customers representing 10%
or more of its total revenues.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 12pt/110% Arial, Helvetica, Sans-Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Georgia, Times, Serif; font-size: 9.5pt"><B></B></FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 9.5pt"><B>10</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Related-party balances and transactions</B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

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<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 10pt"><B>(a)</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>S&atilde;o Paulo State</B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 70.9pt"><FONT STYLE="font-size: 10pt"><B>(i)</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Accounts receivable, interest on capital, revenue, and expenses with
the S&atilde;o Paulo State Government </B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Georgia, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; width: 54%; padding-bottom: 1pt; text-align: justify">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 22%; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>September 30, 2021</B></P></TD>
    <TD STYLE="padding-right: 5pt; width: 24%; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>December 31, 2020</B></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify"><FONT STYLE="font-size: 9pt">Accounts receivable</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; padding-left: 5pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify"><FONT STYLE="font-size: 9pt">Current:</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; padding-left: 5pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify"><FONT STYLE="font-size: 9pt">&#9;Sanitation services</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 9pt">134,408</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 9pt">109,078</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify"><FONT STYLE="font-size: 9pt">&#9;Estimated losses</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 9pt">(41,076)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 9pt">(39,127)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify"><FONT STYLE="font-size: 9pt">&#9;Reimbursement of additional retirement and pension benefits paid (G0):</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; padding-left: 5pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.65pt; padding-bottom: 1pt; text-align: justify"><FONT STYLE="font-size: 9pt">&#9;- Monthly flow (payments)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 9pt">24,365</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 9pt">22,726</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 12pt">&#9;</FONT><FONT STYLE="font-size: 12pt">&#9;- </FONT><FONT STYLE="font-size: 9pt">GESP Agreement &#8211; 2015</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">82,349</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">75,377</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; padding-left: 5pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify"><FONT STYLE="font-size: 9pt">Total current</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">200,046</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">168,054</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: justify; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: justify; padding-left: 5pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap"><FONT STYLE="font-size: 9pt">Noncurrent:</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: justify; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: justify; padding-left: 5pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify"><FONT STYLE="font-size: 9pt">&#9;Agreement for the installment payment of sanitation services</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 9pt">745</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 9pt">4,303</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify"><FONT STYLE="font-size: 9pt">&#9;Reimbursement of additional retirement and pension benefits paid (G0):</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; padding-left: 5pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 12pt">&#9;</FONT><FONT STYLE="font-size: 12pt">&#9;- </FONT><FONT STYLE="font-size: 9pt">GESP Agreement &#8211; 2015</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">639,051</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">634,288</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; padding-left: 5pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify"><FONT STYLE="font-size: 9pt">Total noncurrent</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">639,796</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">638,591</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; padding-left: 5pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify"><FONT STYLE="font-size: 9pt">Total receivables from shareholders</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">839,842</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">806,645</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; padding-left: 5pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify"><FONT STYLE="font-size: 9pt">Assets:</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; padding-left: 5pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify"><FONT STYLE="font-size: 9pt">Sanitation services</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 9pt">94,077</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 9pt">74,254</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify"><FONT STYLE="font-size: 9pt">Reimbursement of additional retirement and pension benefits paid (G0)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">745,765</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">732,391</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; padding-left: 5pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify"><FONT STYLE="font-size: 9pt">Total</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">839,842</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">806,645</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; padding-left: 5pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify"><FONT STYLE="font-size: 9pt">Liabilities:</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; padding-left: 5pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify"><FONT STYLE="font-size: 9pt">Interest on capital payable to related parties</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 9pt">-</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 9pt">116,180</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>


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    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 85%"><P STYLE="text-align: left; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">ITR - Quarterly Information Form - 9/30/2021 - CIA SANEAMENTO BASICO EST SAO PAULO</P></TD><TD STYLE="text-align: center; width: 15%"><P STYLE="text-align: right; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">Version : 1</P></TD></TR></TABLE><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B></B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B>Notes to the Quarterly Information</B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt">&nbsp;</P></DIV>
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<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 11pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Georgia, Times, Serif; width: 100%; border-collapse: collapse">
  <TR>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; width: 44%; padding-bottom: 1pt; text-align: justify">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; vertical-align: top; width: 14%">
<DIV STYLE="margin-right: 2.85pt; margin-left: 2.85pt; padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>July to September</B></P>
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>2021</B></P>
</DIV></TD>
    <TD STYLE="vertical-align: top; width: 14%">
<DIV STYLE="margin-right: 2.85pt; margin-left: 2.85pt; padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>January to September</B></P>
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>2021</B></P>
</DIV></TD>
    <TD STYLE="vertical-align: top; width: 14%">
<DIV STYLE="margin-right: 2.85pt; margin-left: 2.85pt; padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>July to </B></P>
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>September 2020</B></P>
</DIV></TD>
    <TD STYLE="vertical-align: top; width: 14%">
<DIV STYLE="margin-right: 2.85pt; margin-left: 2.85pt; padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>January to</B></P>
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>September 2020</B></P>
</DIV></TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-bottom: 1pt; text-align: justify">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt"><FONT STYLE="font-size: 9pt">Revenue from sanitation services</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right"><FONT STYLE="font-size: 9pt">145,941</FONT></TD>
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right"><FONT STYLE="font-size: 9pt">389,322</FONT></TD>
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right"><FONT STYLE="font-size: 9pt">113,989</FONT></TD>
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right"><FONT STYLE="font-size: 9pt">379,824</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt"><FONT STYLE="font-size: 9pt">Payments from related parties</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right"><FONT STYLE="font-size: 9pt">(96,351) </FONT></TD>
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right"><FONT STYLE="font-size: 9pt">(316,687)</FONT></TD>
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right"><FONT STYLE="font-size: 9pt">(110,938)</FONT></TD>
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right"><FONT STYLE="font-size: 9pt">(404,527)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; padding-left: 14.2pt">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right">&nbsp;</TD>
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right">&nbsp;</TD>
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right">&nbsp;</TD>
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt"><FONT STYLE="font-size: 9pt">Payment received from reimbursement referring to Law 4,819/1958</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right"><FONT STYLE="font-size: 9pt">(33,792)</FONT></TD>
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right"><FONT STYLE="font-size: 9pt">(121,850)</FONT></TD>
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right"><FONT STYLE="font-size: 9pt">(54,922)</FONT></TD>
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right"><FONT STYLE="font-size: 9pt">(126,839)</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 70.9pt"><FONT STYLE="font-size: 10pt"><B>(ii)</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Disputed amounts</B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">As of September 30, 2021 and December 31, 2020, the disputed
amounts between SABESP and the S&atilde;o Paulo State, referring to additional retirement and pension benefits paid (Law 4,819/1958),
totaled R$ 1,342,656 and<BR>
R$ 1,281,409, respectively, for which allowances for doubtful accounts were created.</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 70.9pt"><B>(iii)</B></TD><TD STYLE="text-align: justify"><B>Actuarial liability</B></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The Company recognized an actuarial liability corresponding
to additional retirement and pension benefits paid to employees, retired employees, and pensioners of the G0 Plan. As of September 30,
2021, and December 31, 2020, the amounts corresponding to the actuarial liability totaled R$ 2,540,926 and R$ 2,549,541, respectively.
For detailed information on additional retirement and pension benefits, see Note 21.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 10pt"><B>(b)</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Use of Reservoirs &#8211; EMAE</B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">Empresa Metropolitana de &Aacute;guas e Energia S.A.
(EMAE) planned to receive the credit and obtain financial compensation for alleged past and future losses in electricity generation arising
from water collection, and compensation for costs already incurred and to be incurred with the operation, maintenance, and inspection
of the Guarapiranga and Billings reservoirs used by SABESP in its operations.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">As of October 28, 2016, the Company entered into an agreement
based on a Private Transaction Agreement and Other Adjustments to settle the disputes fully and completely and SABESP will continue using
the reservoirs.</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">As of September 30, 2021, the balance of the agreement
totaled R$ 8,140 and R$ 88,998 (R$ 17,255 and R$ 73,660 as of December 31, 2020), recorded in Other liabilities, under current and noncurrent
liabilities, respectively.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 10pt"><B>(c)</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Agreements with reduced tariff for State Entities that join the Rational
Water Use Program (PURA) </B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The Company has agreements with government entities related
to the S&atilde;o Paulo State Government that benefit them with a 25% discount on water supply and sewage services tariffs when they are
not in default. These agreements provide for the implementation of the rational water use program, which provides for water consumption
reduction.</P>


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<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 11pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 10pt"><B>(d)</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Guarantees</B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The S&atilde;o Paulo State provides guarantees for some
of the Company&#8217;s borrowings and financing and does not charge any related fees. See Note 16.</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 10pt"><B>(e)</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Personnel assignment agreement among entities related to the S&atilde;o
Paulo State Government</B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The Company has personnel assignment agreements with
entities related to the State Government, whose expenses are fully charged.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">From July to September and from January to September
2021, expenses with employees assigned to other state entities totaled R$ 165 and R$ 540 (R$ 468 and R$ 1,735 from July to September and
from January to September 2020), respectively.</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">No expenses with employees from other entities assigned
to the Company were recorded in 2021 and in the third quarter of 2020 (R$&nbsp;13 from January to September 2020).</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 10pt"><B>(f)</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Non-operating assets</B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">As of September 30, 2021 and December 31, 2020, the Company&#8217;s
land and lent structures totaled R$ 3,613.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 10pt"><B>(g)</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>SABESPREV </B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The Company sponsors a private defined benefit pension
plan (G1 Plan), which is operated and administered by SABESPREV. The net actuarial liability recognized as of September 30, 2021, totaled
R$ 309,865 (R$ 319,053 as of December 31, 2020). See Note 21.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 10pt"><B>(h)</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Compensation of the Fiscal Council and Management Key Personnel </B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">From July to September and from January to September
2021, expenses related to the compensation of the members of the Management and Fiscal Council totaled R$&nbsp;1,586 and R$&nbsp;4,777
(R$&nbsp;1,570 and R$&nbsp;4,749 from July to September and from January to September 2020), respectively.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">Additional amounts of R$&nbsp;360 and R$&nbsp;1.080,
referring to the executive officers&#8217; bonus program, were recorded from July to September and from January to September 2021 (R$&nbsp;380
and R$&nbsp;1,100 from July to September and from January to September 2020), respectively.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 10pt"><B>(i)</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Loan agreement through credit facility</B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The Company holds interest in certain Special Purpose
Entities (SPEs), in which it does not hold the majority interest but has cast vote and power of veto in some issues, with no ability to
use such power of veto in a way to affect the returns over investments. Therefore, these SPEs are considered for accounting purposes as
jointly arrangements.</P>


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<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 11pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify"><B>Aquapolo Ambiental</B></P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The Company entered into a loan agreement through a credit
facility with SPE Aquapolo Ambiental S/A to finance the operations of that company until the borrowings and financing requested with financial
institutions are granted.</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">As of September 30, 2021, the balance of principal and
interest of this agreement totaled R$ 7,473 and R$ 18,933, recorded in &#8220;Other assets&#8221; under current assets and noncurrent
assets, respectively (R$ 9,420 and R$ 23,866, respectively, as of December 31, 2020), at CDI + 1.2% p.a.</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The loan originally matured on April 30, 2015, but was
extended to October 30, 2015. On November 25, 2015, a new amendment changed the payment schedule for three annual installments, the first
of which matures on December 30, 2021, and the last on December 30, 2023.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify"><B>&Aacute;guas de Andradina</B></P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The Company entered into a loan agreement through a credit
facility with SPE &Aacute;guas de Andradina S/A to finance the operations of that company.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">As of September 30, 2021, the balance of principal and
interest of this agreement totaled R$ 8 and R$ 1,009, which was recorded in Noncurrent assets, under Other assets, at CDI + 3% p.a.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">This agreement was executed on August 17, 2021. The amount
of principal, adjustment, accrued interest, and any other taxes must be paid in full by the borrower to SABESP until August 31, 2025.</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 10pt"><B>(j)</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>&#8220;Se Liga na Rede&#8221; (Connect to the Network Program)</B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The S&atilde;o Paulo State enacted the State Law 14,687/2012,
creating the Pro-Connection program, intended to financially subsidize the execution of household branches necessary to connect to the
sewage collecting networks in low-income households which agreed to adhere to the program. The Law was regulated by Decree 58,280/2012
and is effective for eight years. During the Program, R$ 52,174 was reimbursed by the S&atilde;o Paulo State. As of September 30, 2021,
there were no balances receivable from related parties.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 12pt/110% Arial, Helvetica, Sans-Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Georgia, Times, Serif; font-size: 9.5pt"><B></B></FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 9.5pt"><B>11</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Investments</B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The Company holds interest in certain Special Purpose
Entities (SPE). Although SABESP has no majority shares of its investees, the shareholders&#8217; agreement provides for the power of veto
in certain management issues, however, it cannot use such power of veto in a way to affect the returns over the investments, implying
a mutually shared control (joint venture &#8211; CPC 19 (R2)).</P>


<!-- Field: Page; Sequence: 45 -->
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    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 85%"><P STYLE="text-align: left; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">ITR - Quarterly Information Form - 9/30/2021 - CIA SANEAMENTO BASICO EST SAO PAULO</P></TD><TD STYLE="text-align: center; width: 15%"><P STYLE="text-align: right; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">Version : 1</P></TD></TR></TABLE><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B></B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B>Notes to the Quarterly Information</B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 11pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The Company holds equity interest valued by the equity
accounting in the following investees:</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Georgia, Times, Serif; width: 100%; border-collapse: collapse">
  <TR>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="vertical-align: bottom; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 1pt 0 0; text-align: center; border-bottom: Black 0.5pt solid"><B>Equity</B></P></TD>
    <TD STYLE="vertical-align: top; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 1pt 0 0; text-align: center; border-bottom: Black 0.5pt solid"><B>Dividends distributed</B></P></TD>
    <TD COLSPAN="3" STYLE="vertical-align: bottom; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 1pt 0 0; text-align: center; border-bottom: Black 0.5pt solid"><B>Profit (loss) for
    the period</B></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; width: 22%; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="width: 13%; padding-right: 3.5pt; padding-left: 3.5pt">
<DIV STYLE="padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 1pt 0 0; text-align: center"><B>September 30,</B></P>
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 1pt 0 0; text-align: center"><B>30,</B></P>
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 1pt 0 0; text-align: center"><B>2021</B></P>
</DIV></TD>
    <TD STYLE="width: 13%; padding-right: 3.5pt; padding-left: 3.5pt">
<DIV STYLE="padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 1pt 0 0; text-align: center"><B>December</B></P>
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 1pt 0 0; text-align: center"><B>31,</B></P>
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 1pt 0 0; text-align: center"><B>2020</B></P>
</DIV></TD>
    <TD STYLE="width: 13%; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 1pt 0 0; text-align: center; border-bottom: Black 0.5pt solid"><B>January to September
    2021</B></P></TD>
    <TD STYLE="width: 13%; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 1pt 0 0; text-align: center; border-bottom: Black 0.5pt solid"><B>January to September
    2021</B></P></TD>
    <TD STYLE="width: 13%; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 1pt 0 0; text-align: center; border-bottom: Black 0.5pt solid"><B>(*)</B></P></TD>
    <TD STYLE="width: 13%; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 1pt 0 0; text-align: center; border-bottom: Black 0.5pt solid"><B>January to September
    2020</B></P></TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">Sesamm</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">56,519</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">51,514</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">5,005</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">5,358</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">&Aacute;guas de Andradina</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">30,399</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">29,576</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">(996)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">1,908</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">(89)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">(755)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">&Aacute;guas de Castilho</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">9,394</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">8,533</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">(281)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">1,127</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">15</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">990</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">Attend Ambiental</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">21,828</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">11,409</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">3,036</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">7,383</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">3,005</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">Aquapolo Ambiental</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">60,137</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">41,903</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">18,234</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">13,393</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">Paulista Geradora de Energia </FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">6,279</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">6,692</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">(413)</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">(250)</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Georgia, Times, Serif; width: 100%; border-collapse: collapse">
  <TR>
    <TD STYLE="white-space: nowrap; padding-top: 1pt; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="vertical-align: bottom; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 1pt 0 0; text-align: center; border-bottom: Black 0.5pt solid"><B>Investment</B></P></TD>
    <TD STYLE="vertical-align: top; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 1pt 0 0; text-align: center; border-bottom: Black 0.5pt solid"><B>Dividends distributed</B></P></TD>
    <TD COLSPAN="3" STYLE="vertical-align: bottom; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 1pt 0 0; text-align: center; border-bottom: Black 0.5pt solid"><B>Equity pickup</B></P></TD>
    <TD COLSPAN="2" STYLE="vertical-align: bottom; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 1pt 0 0; text-align: center; border-bottom: Black 0.5pt solid"><B>Interest percentage</B></P></TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; width: 25%; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; width: 10%; padding-right: 3.5pt; padding-left: 3.5pt">
<DIV STYLE="padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 1pt 0 0; text-align: center"><B>September</B></P>
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 1pt 0 0; text-align: center"><B>30,</B></P>
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 1pt 0 0; text-align: center"><B>2021</B></P>
</DIV></TD>
    <TD STYLE="vertical-align: bottom; width: 10%; padding-right: 3.5pt; padding-left: 3.5pt">
<DIV STYLE="padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 1pt 0 0; text-align: center"><B>December</B></P>
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 1pt 0 0; text-align: center"><B>31,</B></P>
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 1pt 0 0; text-align: center"><B>2020</B></P>
</DIV></TD>
    <TD STYLE="vertical-align: top; width: 10%; padding-right: 3.5pt; padding-left: 3.5pt">
<DIV STYLE="padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 1pt 0 0; text-align: center"><B>January to </B></P>
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 1pt 0 0; text-align: center"><B>September 2021</B></P>
</DIV></TD>
    <TD STYLE="vertical-align: bottom; width: 10%; padding-right: 3.5pt; padding-left: 3.5pt">
<DIV STYLE="padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 1pt 0 0; text-align: center"><B>January to September </B></P>
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 1pt 0 0; text-align: center"><B>2021</B></P>
</DIV></TD>
    <TD STYLE="vertical-align: bottom; width: 6%; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 1pt 0 0; text-align: center; border-bottom: Black 0.5pt solid"><B>(*)</B></P></TD>
    <TD STYLE="vertical-align: bottom; width: 10%; padding-right: 3.5pt; padding-left: 3.5pt">
<DIV STYLE="padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 1pt 0 0; text-align: center"><B>January to September</B></P>
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 1pt 0 0; text-align: center"><B>2020</B></P>
</DIV></TD>
    <TD STYLE="vertical-align: bottom; width: 10%; padding-right: 3.5pt; padding-left: 3.5pt">
<DIV STYLE="padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 1pt 0 0; text-align: center"><B>September 30,</B></P>
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 1pt 0 0; text-align: center"><B>2021</B></P>
</DIV></TD>
    <TD STYLE="vertical-align: bottom; width: 9%; padding-right: 3.5pt; padding-left: 3.5pt">
<DIV STYLE="padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 1pt 0 0; text-align: center"><B>December</B></P>
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 1pt 0 0; text-align: center"><B>31,</B></P>
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 1pt 0 0; text-align: center"><B>2020</B></P>
</DIV></TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-top: 2.4pt; padding-bottom: 1pt"><FONT STYLE="font-size: 8pt">Sesamm</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8pt">20,348</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8pt">18,546</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; text-align: right"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8pt">1,802</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; text-align: right"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8pt">1,929</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8pt">36%</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8pt">36%</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-top: 2.4pt; padding-bottom: 1pt"><FONT STYLE="font-size: 8pt">&Aacute;guas de Andradina </FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8pt">9,119</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8pt">8,873</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; text-align: right"><FONT STYLE="font-size: 8pt">(299)</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8pt">572</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; text-align: right"><FONT STYLE="font-size: 8pt">(27)</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8pt">(226)</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8pt">30%</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8pt">30%</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-top: 2.4pt; padding-bottom: 1pt"><FONT STYLE="font-size: 8pt">&Aacute;guas de Castilho</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8pt">2,818</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8pt">2,560</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; text-align: right"><FONT STYLE="font-size: 8pt">(84)</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8pt">338</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; text-align: right"><FONT STYLE="font-size: 8pt">4</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8pt">298</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8pt">30%</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8pt">30%</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-top: 2.4pt; padding-bottom: 1pt"><FONT STYLE="font-size: 8pt">Saneaqua Mairinque<SUP>1</SUP></FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; text-align: right"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; text-align: right"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8pt">(248)</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8pt">4.6%</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8pt">4.6%</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-top: 2.4pt; padding-bottom: 1pt"><FONT STYLE="font-size: 8pt">Attend Ambiental</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8pt">9,822</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8pt">5,134</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; text-align: right"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8pt">1,366</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; text-align: right"><FONT STYLE="font-size: 8pt">3,322</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8pt">1,352</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8pt">45%</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8pt">45%</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-top: 2.4pt; padding-bottom: 1pt"><FONT STYLE="font-size: 8pt">Aquapolo Ambiental</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8pt">29,467</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8pt">20,532</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; text-align: right"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8pt">8,935</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; text-align: right"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8pt">6,562</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8pt">49%</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8pt">49%</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-top: 2.4pt; padding-bottom: 1pt"><FONT STYLE="font-size: 8pt">Paulista Geradora de Energia</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 2.4pt 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">1,570</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 2.4pt 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">1,673</P></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 2.4pt 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">-</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 2.4pt 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(103)</P></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 2.4pt 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">-</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 2.4pt 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(63)</P></TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8pt">25%</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8pt">25%</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-top: 2.4pt; padding-bottom: 1pt"><FONT STYLE="font-size: 8pt">Total</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8pt">73,144</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8pt">57,318</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; text-align: right"><FONT STYLE="font-size: 8pt">(383)</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8pt">12,910</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; text-align: right"><FONT STYLE="font-size: 8pt">3,299</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8pt">9,604</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; white-space: nowrap; text-align: right">&nbsp;</TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; white-space: nowrap; text-align: right">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 2.4pt 0 1pt">&nbsp;</P>
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 2.4pt 0 1pt">Other investments</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 2.4pt 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">6,099</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 2.4pt 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">6,099</P></TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; text-align: right">&nbsp;</TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; white-space: nowrap; text-align: right">&nbsp;</TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; text-align: right">&nbsp;</TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; white-space: nowrap; text-align: right">&nbsp;</TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; white-space: nowrap; text-align: right">&nbsp;</TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; white-space: nowrap; text-align: right">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 2.4pt 0 1pt">&nbsp;</P>
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 2.4pt 0 1pt">Total</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 2.4pt 0 1pt; text-align: right; border-bottom: Black 2.25pt double">79,243</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 2.4pt 0 1pt; text-align: right; border-bottom: Black 2.25pt double">63,417</P></TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; text-align: right">&nbsp;</TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; white-space: nowrap; text-align: right">&nbsp;</TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; text-align: right">&nbsp;</TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; white-space: nowrap; text-align: right">&nbsp;</TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; white-space: nowrap; text-align: right">&nbsp;</TD>
    <TD STYLE="padding: 2.4pt 3.5pt 1pt; white-space: nowrap; text-align: right">&nbsp;</TD></TR>
  </TABLE>
<P STYLE="font: 10pt/12pt Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">(*) Refers to changes in the equity of investees, as
their financial statements for the year ended December 31, 2020 were issued after the disclosure of SABESP&#8217;s financial statements.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify"><SUP>(1)</SUP> As of August 20, 2020, SABESP discontinued
the equity accounting method for the investment in Saneaqua Mairinque and recorded R$&nbsp;5,734 in &#8220;Other investments&#8221;.</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>


<!-- Field: Page; Sequence: 46 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: right; width: 100%">Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->44<!-- Field: /Sequence --> of 87&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: 85%"><P STYLE="text-align: left; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">ITR - Quarterly Information Form - 9/30/2021 - CIA SANEAMENTO BASICO EST SAO PAULO</P></TD><TD STYLE="text-align: center; width: 15%"><P STYLE="text-align: right; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">Version : 1</P></TD></TR></TABLE><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B></B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B>Notes to the Quarterly Information</B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 12pt/110% Arial, Helvetica, Sans-Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Georgia, Times, Serif; font-size: 9.5pt"><B></B></FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 9.5pt"><B>12</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Investment Properties</B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/12pt Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Georgia, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="width: 32%; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center; line-height: 110%">&nbsp;</TD>
    <TD STYLE="width: 17%; padding-right: 5.4pt; padding-left: 5.4pt">
<DIV STYLE="padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>December 31,</B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>2020</B></P>
</DIV></TD>
    <TD STYLE="width: 17%; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.5pt solid"><B>Write-offs and disposals</B></P></TD>
    <TD STYLE="width: 17%; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.5pt solid"><B>Depreciation</B></P></TD>
    <TD STYLE="width: 17%; padding-right: 5.4pt; padding-left: 5.4pt">
<DIV STYLE="padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>September 30,</B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>2021</B></P>
</DIV></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; line-height: 12pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 12pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 12pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 12pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 12pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 12pt"><FONT STYLE="font-size: 9pt">Investment properties</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 12pt"><FONT STYLE="font-size: 9pt">46,274</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 12pt"><FONT STYLE="font-size: 9pt">(100)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 12pt"><FONT STYLE="font-size: 9pt">(36)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 12pt"><FONT STYLE="font-size: 9pt">46,138</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt/12pt Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/12pt Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Georgia, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="width: 31%; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center; line-height: 110%">&nbsp;</TD>
    <TD STYLE="width: 17%; padding-right: 5.4pt; padding-left: 5.4pt">
<DIV STYLE="padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>December 31,</B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>2019</B></P>
</DIV></TD>
    <TD STYLE="width: 18%; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.5pt solid"><B>Transfer</B></P></TD>
    <TD STYLE="width: 17%; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.5pt solid"><B>Depreciation</B></P></TD>
    <TD STYLE="width: 17%; padding-right: 5.4pt; padding-left: 5.4pt">
<DIV STYLE="padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>September 30,</B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>2020</B></P>
</DIV></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; line-height: 12pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 12pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 12pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 12pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 12pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 12pt"><FONT STYLE="font-size: 9pt">Investment properties</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 12pt"><FONT STYLE="font-size: 9pt">47,562</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 12pt"><FONT STYLE="font-size: 9pt">(1,240)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 12pt"><FONT STYLE="font-size: 9pt">(36)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 12pt"><FONT STYLE="font-size: 9pt">46,286</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt/12pt Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 11pt/110% Georgia, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-size: 10pt">As of September 30, 2021,
the market value of these properties was approximately R$ 386,000 (R$ 383,000 as of December 31, 2020)</FONT><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 12pt">.</FONT></P>

<P STYLE="font: 10pt/12pt Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 12pt/110% Arial, Helvetica, Sans-Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Georgia, Times, Serif; font-size: 9.5pt"><B></B></FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 9.5pt"><B>13</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Contract asset</B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">Contract Asset (works in progress) is the right to consideration
in exchange for goods or services transferred to customers. As established by CPC 47 &#8211; Revenue from Contracts with Customers, assets
subject to the concession under construction, recorded under the scope of ICPC 01 (R1) &#8211; Concession Agreements, must be classified
as Contract Asset during the construction period and transferred to Intangible Assets only after the conclusion of the works.</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">A contract asset is initially designated at fair value
and includes borrowing costs capitalized during the period when the asset is under construction, based on the weighted average rate of
borrowings in effect on the capitalization date. See Note 14 for further information on the capitalization of interest and construction
margin, recorded during the construction period.</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Georgia, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; width: 20%; text-align: center; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 16%; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.5pt solid"><B>December 31, 2020</B></P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 16%; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.5pt solid"><B>Additions (i)</B></P></TD>
    <TD STYLE="padding-right: 5pt; width: 16%; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.5pt solid"><B>Transfers</B></P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 16%; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.5pt solid"><B>Transfers of works
    to intangible assets (ii)</B></P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 16%; padding-left: 5pt">
<DIV STYLE="margin-right: 2.85pt; margin-left: 2.85pt; padding: 0in; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>September 30,</B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>2021 (iii)</B></P>
</DIV></TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-bottom: 1pt; text-align: justify; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Total contract asset</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">7,969,164</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">3,466,866</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">1,166</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">(2,690,263)</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">8,746,933</P></TD></TR>
  </TABLE>
<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Georgia, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; width: 20%; text-align: center; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 16%; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.5pt solid"><B>December 31, 2019</B></P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 16%; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.5pt solid"><B>Additions</B></P></TD>
    <TD STYLE="padding-right: 5pt; width: 16%; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.5pt solid"><B>Transfers</B></P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 16%; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.5pt solid"><B>Transfers of works
    to intangible assets</B></P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 16%; padding-left: 5pt">
<DIV STYLE="margin-right: 2.85pt; margin-left: 2.85pt; padding: 0in; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>September 30,</B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>2020</B></P>
</DIV></TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-bottom: 1pt; text-align: justify; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Total contract asset</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">7,617,714</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">2,762,570</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">55,496</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">(2,319,375)</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">8,116,405</P></TD></TR>
  </TABLE>
<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 6pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 21.25pt"><FONT STYLE="font-size: 10pt; letter-spacing: -0.05pt">(i)</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">The largest additions of the period are located in the municipalities of
S&atilde;o Paulo, Praia Grande, and Guarulhos, totaling R$ 1,841 million, R$ 127 million, and R$ 108 million, respectively.</FONT></TD></TR></TABLE>


<!-- Field: Page; Sequence: 47 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: right; width: 100%">Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->45<!-- Field: /Sequence --> of 87&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: 85%"><P STYLE="text-align: left; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">ITR - Quarterly Information Form - 9/30/2021 - CIA SANEAMENTO BASICO EST SAO PAULO</P></TD><TD STYLE="text-align: center; width: 15%"><P STYLE="text-align: right; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">Version : 1</P></TD></TR></TABLE><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B></B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B>Notes to the Quarterly Information</B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 6pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 21.25pt"><FONT STYLE="font-size: 10pt">(ii)</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">The largest transfers of the period are located in the municipalities of
S&atilde;o Paulo, Caieiras, and Franco da Rocha, totaling R$ 1,715 million, R$ 110 million, and R$ 77 million, respectively.</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 6pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 21.25pt"><FONT STYLE="font-size: 10pt">(iii)</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">The largest works are located in the municipalities of S&atilde;o Paulo,
Praia Grande, and S&atilde;o Bernardo do Campo, totaling R$ 3,880 million, R$ 619 million, and R$ 504 million, respectively.</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">As of September 30, 2021, the contract asset included
R$ 276,893, recorded as a lease (R$ 276,893 as of December 31, 2020). Leases are part of construction costs; however, constructions are
still in progress.</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0"><FONT STYLE="letter-spacing: -0.05pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 12pt/110% Arial, Helvetica, Sans-Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Georgia, Times, Serif; font-size: 9.5pt"></FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 9.5pt"><B>14</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Intangible assets</B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 10pt"><B>(a)</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Statement of financial position details</B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Georgia, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: center; line-height: 110%">&nbsp;</TD>
    <TD COLSPAN="3" STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>September 30,
    2021</B></P></TD>
    <TD COLSPAN="3" STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>December 31,
    2020</B></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; width: 39%; padding-bottom: 1pt; text-align: center; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 9%; padding-left: 5pt">
    <P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Cost</B></P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 11%; padding-left: 5pt">
    <P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Accumulated
    amortization</B></P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 10%; padding-left: 5pt">
    <P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Net</B></P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 9%; padding-left: 5pt">
    <P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Cost</B></P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 12%; padding-left: 5pt">
    <P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Accumulated
    amortization</B></P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 10%; padding-left: 5pt">
    <P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Net</B></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">Intangible right arising from:</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">Concession agreements &#8211; equity value</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">687,739</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">(200,888)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">486,851</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">671,904</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">(188,129)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">483,775</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">Concession agreements &#8211; economic value </FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">1,478,568</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">(788,377)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">690,191</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">1,446,261</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">(711,596)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">734,665</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">Program contracts </FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">24,091,952</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">(7,436,093)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">16,655,859</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">23,160,119</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">(6,799,812)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">16,360,307</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">Program contracts &#8211; commitments </FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">1,709,757</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">(378,558)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">1,331,199</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">1,709,757</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">(338,834)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">1,370,923</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">Service contracts &#8211; S&atilde;o Paulo</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">22,220,415</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">(6,435,806)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">15,784,609</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">20,579,676</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">(5,707,072)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">14,872,604</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">Software license of use</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">1,045,654</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">(509,641)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">536,013</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">978,085</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">(437,460)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">540,625</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">Right of use &#8211; Other assets</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">160,427</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(56,105)</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">104,322</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">141,782</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(99,106)</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">42,676</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">Total</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">51,394,512</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">(15,805,468)</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">35,589,044</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">48,687,584</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">(14,282,009)</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">34,405,575</P></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><B>(b)</B></TD><TD STYLE="text-align: justify"><B>Changes</B></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Georgia, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; width: 22%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD>
    <TD STYLE="width: 11%; padding-right: 3.5pt; padding-left: 3.5pt">
<DIV STYLE="padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 7.5pt Georgia, Times, Serif; margin: 0; text-align: center"><B>December </B></P>
    <P STYLE="font: 7.5pt Georgia, Times, Serif; margin: 0; text-align: center"><B>2020</B></P>
</DIV></TD>
    <TD STYLE="width: 10%; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 7.5pt Georgia, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.5pt solid"><B>Additions</B></P></TD>
    <TD STYLE="white-space: nowrap; width: 12%; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 7.5pt Georgia, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.5pt solid"><B>Transfer of contract
    asset</B></P></TD>
    <TD STYLE="width: 12%; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 7.5pt Georgia, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.5pt solid"><B>Transfers </B></P></TD>
    <TD STYLE="white-space: nowrap; width: 11%; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 7.5pt Georgia, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.5pt solid"><B>Write-offs and disposals</B></P></TD>
    <TD STYLE="width: 11%; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 7.5pt Georgia, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.5pt solid"><B>Amortization</B></P></TD>
    <TD STYLE="width: 11%; padding-right: 3.5pt; padding-left: 3.5pt">
<DIV STYLE="padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 7.5pt Georgia, Times, Serif; margin: 0; text-align: center"><B>September 30, </B></P>
    <P STYLE="font: 7.5pt Georgia, Times, Serif; margin: 0; text-align: center"><B>2021</B></P>
</DIV></TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-bottom: 1pt; padding-left: 3.5pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">Intangible right arising from: </FONT></TD>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">Concession agreements &#8211; equity value (*)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">483,775</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">16,260</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">76</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">(140)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">(13,120)</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">486,851</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">Concession agreements &#8211; economic value&nbsp;&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">734,665</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">32,812</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">14</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">(242)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">(77,058)</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">690,191</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 3pt; padding-left: 3.5pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">Program contracts (*)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 3pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">16,360,307</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 3pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">10,579</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 3pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">932,362</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 3pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">602</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 3pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">(2,281)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 3pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">(645,710)</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">16,655,859</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">Program contracts &#8211; commitments&nbsp;&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">1,370,923</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">-</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">(39,724)</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">1,331,199</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">Service contracts &#8211; S&atilde;o Paulo </FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">14,872,604</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">11,272</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">1,641,261</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">(1,218)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">(2,859)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">(736,451)</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">15,784,609</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">Software license of use </FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">540,625</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">67,568</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">(72,180)</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">536,013</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">Right of use &#8211; Other assets</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 7.5pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">42,676</P></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 7.5pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">123,701</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 7.5pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">-</P></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 7.5pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">-</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 7.5pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(3,976)</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 7.5pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(58,079)</P></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 7.5pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">104,322</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">Total </FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 7.5pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">34,405,575</P></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 7.5pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">145,552</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 7.5pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">2,690,263</P></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 7.5pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">(526)</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 7.5pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">(9,498)</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 7.5pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">(1,642,322)</P></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 7.5pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">35,589,044</P></TD></TR>
  </TABLE>
<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">(*) As of September 30, 2021, Concession agreements &#8211;
equity value, and Program contracts included leases totaling R$ 68,353 and R$ 183,782 (R$ 76,454 and R$ 193,107 as of December 31, 2020),
respectively.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>


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    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 85%"><P STYLE="text-align: left; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">ITR - Quarterly Information Form - 9/30/2021 - CIA SANEAMENTO BASICO EST SAO PAULO</P></TD><TD STYLE="text-align: center; width: 15%"><P STYLE="text-align: right; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">Version : 1</P></TD></TR></TABLE><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B></B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B>Notes to the Quarterly Information</B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Georgia, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; width: 22%; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD>
    <TD STYLE="width: 10%; padding-right: 3.5pt; padding-left: 3.5pt">
<DIV STYLE="padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 7.5pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>December </B></P>
    <P STYLE="font: 7.5pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>2019</B></P>
</DIV></TD>
    <TD STYLE="width: 7%; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 7.5pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Additions</B></P></TD>
    <TD STYLE="width: 9%; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 7.5pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Contract renewal</B></P></TD>
    <TD STYLE="white-space: nowrap; width: 12%; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 7.5pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Transfer of contract
    asset</B></P></TD>
    <TD STYLE="width: 12%; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 7.5pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Transfers </B></P></TD>
    <TD STYLE="white-space: nowrap; width: 9%; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 7.5pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Write-offs and
    disposals</B></P></TD>
    <TD STYLE="width: 10%; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 7.5pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Amortization</B></P></TD>
    <TD STYLE="width: 9%; padding-right: 3.5pt; padding-left: 3.5pt">
<DIV STYLE="padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 7.5pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>September 30, </B></P>
    <P STYLE="font: 7.5pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>September 2020</B></P>
</DIV></TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-bottom: 1pt; padding-left: 3.5pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">Intangible right arising from: </FONT></TD>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">Concession agreements &#8211; equity value (*)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">1,494,853</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">-</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">(1,031,829)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">43,690</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">1,431</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">(216)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">(23,049)</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">484,880</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">Concession agreements &#8211; economic value&nbsp;&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">712,852</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">-</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">63,781</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">(1,621)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">(28)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">(67,014)</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">707,970</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 3pt; padding-left: 3.5pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">Program contracts (*)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 3pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">13,819,700</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 3pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">289,838</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 3pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">1,031,829</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 3pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">1,338,664</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 3pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">(51,448)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 3pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">(3,579)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 3pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">(597,602)</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 3pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">15,827,402</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">Program contracts &#8211; commitments&nbsp;&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">1,364,875</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">58,324</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">-</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">(39,034)</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">1,384,165</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">Service contracts &#8211; S&atilde;o Paulo </FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">14,390,763</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">12,697</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">845,327</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">(24,356)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">(5,398)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">(660,723)</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">14,558,310</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">Software license of use </FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">471,706</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">-</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">27,913</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">78,243</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">(56,569)</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">521,293</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">Right of use &#8211; Other assets</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 7.5pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">70,698</P></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 7.5pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">26,670</P></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 7.5pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">-</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 7.5pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">-</P></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 7.5pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">-</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 7.5pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">-</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 7.5pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(42,385)</P></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 7.5pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">54,983</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 7.5pt; line-height: 110%">Total </FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 7.5pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">32,325,447</P></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 7.5pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">387,529</P></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 7.5pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">-</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 7.5pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">2,319,375</P></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 7.5pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">2,249</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 7.5pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">(9,221)</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 7.5pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">(1,486,376)</P></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 7.5pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">33,539,003</P></TD></TR>
  </TABLE>
<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">(*) As of September 30, 2020, Concession agreements &#8211;
equity value, and Program contracts included leases totaling R$ 79,157 and R$ 196,219 (R$ 87,266 and R$ 205,558 as of December 31, 2019),
respectively.</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">As of June 30, 2020, a contract was signed for the provision
of treatment services and final disposal of solid waste and collection of garbage tax in the Municipality of Diadema for 40 years. Garbage
collection fees started to be charged on water and sewage bills as of January 1, 2021 and were interrupted on May 1, 2021. To reach the
best operationalization format, treatment services and final disposal of solid waste are in the study phase and, based on the contractual
provision, are subject to a partnership between SABESP and a private party, which will occur through a public call.</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 10pt"><B>(c)</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Obligations arising from concession agreements</B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">As of September 30, 2021, the Company has obligations
recorded in &#8220;Program contract commitments&#8221;, under current liabilities and noncurrent liabilities, totaling R$ 136,023 and
R$ 42,930 (R$ 162,541 and R$ 68,939 as of December 31, 2020), respectively.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><B>(d)</B></TD><TD STYLE="text-align: justify"><B>Capitalization of interest and other finance charges</B></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The Company capitalizes interest, inflation adjustment,
and exchange variation in concession intangible assets during the construction period. From January to September 2021, it capitalized
R$&nbsp;183,241 (R$&nbsp;187,798 from January to September 2020).</P>


<!-- Field: Page; Sequence: 49 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: right; width: 100%">Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->47<!-- Field: /Sequence --> of 87&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: 85%"><P STYLE="text-align: left; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">ITR - Quarterly Information Form - 9/30/2021 - CIA SANEAMENTO BASICO EST SAO PAULO</P></TD><TD STYLE="text-align: center; width: 15%"><P STYLE="text-align: right; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">Version : 1</P></TD></TR></TABLE><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B></B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B>Notes to the Quarterly Information</B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 11pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 10pt"><B>(e)</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Construction margin</B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The Company is primarily responsible for the construction
and installation of the concession infrastructure, either by using its employees or contracting third parties and is significantly exposed
to its risks and benefits. Accordingly, the Company recognizes revenue from construction services corresponding to construction costs
increased by gross margin.</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">Constructions related to the concessions are usually
performed by third parties. In such a case, the margin is lower to cover administration costs and the assumption of responsibility for
primary risks is lower. The construction margin was 2.3% as of September 30, 2021 and 2020.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">From July to September and from January to September
2021, the construction margins were R$&nbsp;26,668 and R$&nbsp;72,672 (R$&nbsp;23,684 and R$&nbsp;59,263 from July to September and from
January to September 2020), respectively.</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 10pt"><B>(f)</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Expropriations </B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">As a result of the construction of priority projects
related to water and sewage systems, the Company was required to expropriate third-party properties, whose owners will be compensated
either amicably or through court.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">Expropriation costs are recorded as concession intangible
assets after the transaction is concluded. From July to September and from January to September 2021, expropriations totaled R$&nbsp;8,145
and R$&nbsp;58,437 (R$&nbsp;6,455 and R$&nbsp;27,908 from July to September and from January to September 2020), respectively.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 10pt"><B>(g)</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Public-Private Partnership - PPP</B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">SABESP carries out operations related to the PPPs mentioned
below. These operations and their respective guarantees are supported by agreements executed according to Law 11,079/2004.</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">The amounts recorded in intangible assets, net of amortization, are as follows:</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Georgia, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; width: 23%; padding-bottom: 1pt; text-align: justify">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 39%; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>September 30, 2021</B></P></TD>
    <TD STYLE="padding-right: 5pt; width: 38%; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>December 31, 2020</B></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; padding-left: 5pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.65pt; padding-bottom: 1pt; text-align: justify"><FONT STYLE="font-size: 9pt">Alto Tiet&ecirc;</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 9pt">273,549</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 9pt">287,645</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify"><FONT STYLE="font-size: 9pt">S&atilde;o Louren&ccedil;o</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">2,938,273</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">3,065,445</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify"><FONT STYLE="font-size: 9pt">Total</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">3,211,822</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">3,353,090</P></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>


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    <DIV STYLE="margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: right; width: 100%">Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->48<!-- Field: /Sequence --> of 87&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: 85%"><P STYLE="text-align: left; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">ITR - Quarterly Information Form - 9/30/2021 - CIA SANEAMENTO BASICO EST SAO PAULO</P></TD><TD STYLE="text-align: center; width: 15%"><P STYLE="text-align: right; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">Version : 1</P></TD></TR></TABLE><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B></B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B>Notes to the Quarterly Information</B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 11pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">The obligations assumed by the Company are as follows:</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Georgia, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center; line-height: 110%">&nbsp;</TD>
    <TD COLSPAN="3" STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.5pt solid"><B>September 30, 2021</B></P></TD>
    <TD COLSPAN="3" STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.5pt solid"><B>December 31, 2020</B></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="width: 16%; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center; line-height: 110%">&nbsp;</TD>
    <TD STYLE="width: 14%; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.5pt solid"><B>Current liabilities</B></P></TD>
    <TD STYLE="width: 14%; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.5pt solid"><B>Noncurrent liabilities</B></P></TD>
    <TD STYLE="width: 14%; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.5pt solid"><B>Total liabilities</B></P></TD>
    <TD STYLE="width: 14%; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.5pt solid"><B>Current liabilities</B></P></TD>
    <TD STYLE="width: 14%; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.5pt solid"><B>Noncurrent liabilities</B></P></TD>
    <TD STYLE="width: 14%; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.5pt solid"><B>Total liabilities</B></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Alto Tiet&ecirc;</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">56,107</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">124,331</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">180,438</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">59,429</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">149,726</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">209,155</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">S&atilde;o Louren&ccedil;o</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">77,474</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">2,827,675</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">2,905,149</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">70,778</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">2,895,340</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">2,966,118</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Total</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">133,581</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">2,952,006</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">3,085,587</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">130,207</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">3,045,066</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">3,175,273</P></TD></TR>
  </TABLE>
<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><B>(h)</B></TD><TD STYLE="text-align: justify"><B>Amortization of Intangible Assets</B></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="letter-spacing: -0.05pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The average amortization rate totaled 4.7% and 4.6% as
of September 30, 2021 and 2020, respectively.</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0"><FONT STYLE="letter-spacing: -0.05pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 10pt"><B>(i)</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Software license of use</B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="letter-spacing: -0.05pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The software license of use is capitalized based on the
costs incurred to acquire software and make them ready for use. As of April 10, 2017, the Integrated Business Management System (Enterprise
Resource Planning &#8211; SAP ERP) was implemented. This system includes the administrative/financial module.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="letter-spacing: -0.05pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The implementation of the commercial module Net@Su&iacute;te
was concluded on October 13, 2021.</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0"><FONT STYLE="letter-spacing: -0.05pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 10pt"><B>(j)</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Right of use</B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="letter-spacing: -0.05pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The Company recognizes right of use assets and lease
liabilities, except for those of short-term and low value. For these cases, from January to September 2021, SABESP maintained the amounts
of R$ 7,022, R$ 7,868, and R$ 1,285 in its results (R$ 2,838, R$ 6,970, and R$ 1,473 from January to September 2020), allocated to operating
costs, selling expenses, and administrative expenses, respectively.</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0"><FONT STYLE="letter-spacing: -0.05pt">&nbsp;</FONT></P>


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    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 85%"><P STYLE="text-align: left; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">ITR - Quarterly Information Form - 9/30/2021 - CIA SANEAMENTO BASICO EST SAO PAULO</P></TD><TD STYLE="text-align: center; width: 15%"><P STYLE="text-align: right; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">Version : 1</P></TD></TR></TABLE><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B></B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B>Notes to the Quarterly Information</B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0"><FONT STYLE="letter-spacing: -0.05pt">&nbsp;</FONT></P>

<P STYLE="font: 11pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Georgia, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="width: 62%; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; border-bottom: Black 0.5pt solid"><B>Nature</B></P></TD>
    <TD STYLE="width: 19%; padding-right: 3.5pt; padding-left: 3.5pt">
<DIV STYLE="padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>September 30,</B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>2021</B></P>
</DIV></TD>
    <TD STYLE="width: 19%; padding-right: 3.5pt; padding-left: 3.5pt">
<DIV STYLE="padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>December 31, </B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>2020</B></P>
</DIV></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Leases - Contract asset</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">276,893</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">276,893</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Leases - Concession and Program Contract</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Cost</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">405,446</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">405,426</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Accumulated amortization</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(153,311)</P></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(135,865)</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">&nbsp;&nbsp;(=) Net</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">252,135</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">269,561</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Other assets (*)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Vehicles</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">128,068</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">115,208</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Properties</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">7,381</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">15,508</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Equipment</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">9,677</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">4,541</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other assets</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">15,301</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">6,525</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Accumulated amortization</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(56,105)</P></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(99,106)</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">&nbsp;&nbsp;(=) Net</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">104,322</P></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">42,676</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: right">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Right of use</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">633,350</P></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">589,130</P></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0"><FONT STYLE="letter-spacing: -0.05pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">(*) From January to September 2021, costs and accumulated
amortization totaling R$ 102,158, referring to expired rights of use, were written off.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The lease liability corresponds to total future fixed
lease payments, adjusted to present value, considering an incremental rate on borrowings. For further information, see Note 16.</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0"><FONT STYLE="letter-spacing: -0.05pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The table below shows the impact on the Company&#8217;s
result:</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Georgia, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD COLSPAN="3" STYLE="padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 1pt 0; text-align: center; border-bottom: Black 0.5pt solid"><B>Impact on the
    result</B></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="width: 54%; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="width: 23%; padding-right: 3.5pt; padding-left: 3.5pt">
<DIV STYLE="padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 1pt 0; text-align: center"><B>September 30, </B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 1pt 0; text-align: center"><B>2021</B></P>
</DIV></TD>
    <TD STYLE="width: 23%; padding-right: 3.5pt; padding-left: 3.5pt">
<DIV STYLE="padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 1pt 0; text-align: center"><B>September 30, </B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 1pt 0; text-align: center"><B>2020</B></P>
</DIV></TD></TR>
  <TR>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Right of use amortization</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(74,032)</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(59,832)</FONT></TD></TR>
  <TR>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Financial result &#8211; interest expense and inflation adjustment</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(51,818)</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(47,363)</FONT></TD></TR>
  <TR>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Expenses of short-term leases with low value</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: right; border-bottom: Black 0.5pt solid">(16,175)</P></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: right; border-bottom: Black 0.5pt solid">(11,281)</P></TD></TR>
  <TR>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Reduction of profit for the period</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: right; border-bottom: Black 1.5pt double">(142,025)</P></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: right; border-bottom: Black 1.5pt double">(118,476)</P></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0"><FONT STYLE="letter-spacing: -0.05pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0"><FONT STYLE="letter-spacing: -0.05pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><B>(k)</B></TD><TD STYLE="text-align: justify"><B>Performance Agreements</B></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="letter-spacing: -0.05pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">As of September 30, 2021, the accounting balances of
these agreements recorded in contract asset and intangible assets were R$ 721,394 and R$ 758,306 (R$ 306,738 and R$ 265,940 as of December
31, 2020), respectively.</P>


<!-- Field: Page; Sequence: 52 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: right; width: 100%">Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->50<!-- Field: /Sequence --> of 87&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: 85%"><P STYLE="text-align: left; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">ITR - Quarterly Information Form - 9/30/2021 - CIA SANEAMENTO BASICO EST SAO PAULO</P></TD><TD STYLE="text-align: center; width: 15%"><P STYLE="text-align: right; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">Version : 1</P></TD></TR></TABLE><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B></B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B>Notes to the Quarterly Information</B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 11pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 9.5pt"><B>15</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Property, plant and equipment </B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="letter-spacing: -0.05pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 10pt"><B>(a)</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Statement of financial position details</B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="letter-spacing: -0.05pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Georgia, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: center; line-height: 110%">&nbsp;</TD>
    <TD COLSPAN="4" STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>September 30,
    2021</B></P></TD>
    <TD COLSPAN="4" STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>December 31,
    2020</B></P></TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; width: 25%; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: center; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; vertical-align: bottom; width: 8%; padding-left: 5pt">
    <P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Cost</B></P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; vertical-align: bottom; width: 11%; padding-left: 5pt">
    <P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Accumulated
    depreciation</B></P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; vertical-align: bottom; width: 7%; padding-left: 5pt">
    <P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Net</B></P></TD>
    <TD STYLE="padding-right: 5pt; vertical-align: top; width: 11%; padding-left: 5pt">
    <P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Annual average
    depreciation rate</B></P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; vertical-align: bottom; width: 8%; padding-left: 5pt">
    <P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Cost</B></P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; vertical-align: bottom; width: 11%; padding-left: 5pt">
    <P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Accumulated
    depreciation</B></P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; vertical-align: bottom; width: 7%; padding-left: 5pt">
    <P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Net</B></P></TD>
    <TD STYLE="padding-right: 5pt; vertical-align: top; width: 12%; padding-left: 5pt">
    <P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Annual average
    depreciation rate</B></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.65pt; padding-bottom: 1pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">Land</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">94,213</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">-</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">94,213</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">-</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">94,213</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">-</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">94,213</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">-</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.65pt; padding-bottom: 1pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">Buildings</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">86,112</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">(40,924)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">45,188</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">2.1%</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">86,860</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">(41,513)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">45,347</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">2.1%</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.65pt; padding-bottom: 1pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">Equipment</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">386,872</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">(280,318)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">106,554</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">14.3%</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">372,103</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">(271,087)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">101,016</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">14.8%</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.65pt; padding-bottom: 1pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">Transportation equipment</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">10,319</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">(7,849)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">2,470</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">9.9%</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">10,319</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">(7,350)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">2,969</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">9.9%</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.65pt; padding-bottom: 1pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">Furniture and fixtures </FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">34,367</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">(14,333)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">20,034</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">6.7%</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">31,232</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">(13,813)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">17,419</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 8pt; line-height: 110%">6.7%</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.65pt; padding-bottom: 1pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">Other</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">8,734</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(220)</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">8,514</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">5.0%</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">7,618</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(331)</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">7,287</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">4.9%</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.65pt; padding-bottom: 1pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">Total</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">620,617</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">(343,644)</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">276,973</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">10.6%</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">602,345</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">(334,094)</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">268,251</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">11.2%</P></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0"><FONT STYLE="letter-spacing: -0.05pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0"><FONT STYLE="letter-spacing: -0.05pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><B>(b)</B></TD><TD STYLE="text-align: justify"><B>Changes</B></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="letter-spacing: -0.05pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Georgia, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; width: 27%; padding-right: 5.65pt; padding-bottom: 1pt; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 12%; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>December 31, 2020</B></P></TD>
    <TD STYLE="padding-right: 5pt; width: 12%; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Additions</B></P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 13%; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Transfers</B></P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 12%; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Write-offs and disposals</B></P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 12%; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Depreciation</B></P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 12%; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>September 30, 2021</B></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.65pt; padding-bottom: 1pt; text-align: justify"><FONT STYLE="font-size: 8pt">Land</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">94,213</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">94,213</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.65pt; padding-bottom: 1pt; text-align: justify"><FONT STYLE="font-size: 8pt">Buildings</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">45,347</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">1,998</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">(1,373)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">(5)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">(779)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">45,188</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.65pt; padding-bottom: 1pt; text-align: justify"><FONT STYLE="font-size: 8pt">Equipment</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">101,016</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">22,902</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">(1,755)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">(238)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">(15,371)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">106,554</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.65pt; padding-bottom: 1pt; text-align: justify"><FONT STYLE="font-size: 8pt">Transportation equipment</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">2,969</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">(499)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">2,470</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.65pt; padding-bottom: 1pt; text-align: justify"><FONT STYLE="font-size: 8pt">Furniture and fixtures </FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">17,419</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">1,962</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">1,657</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">(99)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">(905)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">20,034</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.65pt; padding-bottom: 1pt; text-align: justify"><FONT STYLE="font-size: 8pt">Other</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">7,287</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">504</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">831</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">-</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(108)</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">8,514</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.65pt; padding-bottom: 1pt; text-align: justify"><FONT STYLE="font-size: 8pt">Total</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">268,251</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">27,366</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">(640)</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">(342)</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">(17,662)</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">276,973</P></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0"><FONT STYLE="letter-spacing: -0.05pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="letter-spacing: -0.05pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Georgia, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; width: 27%; padding-right: 5.65pt; padding-bottom: 1pt; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 12%; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>December 31, 2019</B></P></TD>
    <TD STYLE="padding-right: 5pt; width: 12%; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Additions</B></P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 13%; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Transfers</B></P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 12%; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Write-offs and disposals</B></P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 12%; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Depreciation</B></P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 12%; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>September 30, 2020</B></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.65pt; padding-bottom: 1pt; text-align: justify"><FONT STYLE="font-size: 8pt">Land</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">92,962</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">1,251</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">94,213</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.65pt; padding-bottom: 1pt; text-align: justify"><FONT STYLE="font-size: 8pt">Buildings</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">41,705</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">2,657</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">(110)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">(821)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">43,431</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.65pt; padding-bottom: 1pt; text-align: justify"><FONT STYLE="font-size: 8pt">Equipment</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">152,273</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">19,217</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">(50,704)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">(96)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">(21,795)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">98,895</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.65pt; padding-bottom: 1pt; text-align: justify"><FONT STYLE="font-size: 8pt">Transportation equipment</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">1,984</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">299</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">1,055</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">(454)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">2,884</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.65pt; padding-bottom: 1pt; text-align: justify"><FONT STYLE="font-size: 8pt">Furniture and fixtures </FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">18,219</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">2,503</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">(1,551)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">(65)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">(776)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">18,330</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.65pt; padding-bottom: 1pt; text-align: justify"><FONT STYLE="font-size: 8pt">Other</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">7,250</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">1,106</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(6,446)</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">-</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(43)</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">1,867</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.65pt; padding-bottom: 1pt; text-align: justify"><FONT STYLE="font-size: 8pt">Total</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">314,393</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">25,782</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">(56,505)</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">(161)</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">(23,889)</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">259,620</P></TD></TR>
  </TABLE>

<!-- Field: Page; Sequence: 53 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: right; width: 100%">Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->51<!-- Field: /Sequence --> of 87&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: 85%"><P STYLE="text-align: left; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">ITR - Quarterly Information Form - 9/30/2021 - CIA SANEAMENTO BASICO EST SAO PAULO</P></TD><TD STYLE="text-align: center; width: 15%"><P STYLE="text-align: right; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">Version : 1</P></TD></TR></TABLE><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B></B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B>Notes to the Quarterly Information</B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 26.55pt"></TD><TD STYLE="width: 41.35pt"><FONT STYLE="font-size: 9.5pt"><B>16</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Borrowings and Financing</B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify; text-indent: -35.45pt"><B>&nbsp;</B></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Georgia, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><FONT STYLE="font-size: 8.5pt"><B>&nbsp;Borrowings and financing outstanding balance</B></FONT></TD>
    <TD COLSPAN="3" STYLE="padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8.5pt Georgia, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.5pt solid"><B>September 30, 2021</B></P></TD>
    <TD COLSPAN="3" STYLE="padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8.5pt Georgia, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.5pt solid"><B>December 31, 2020</B></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; width: 53%; padding-right: 3.5pt; padding-left: 3.5pt"><FONT STYLE="font-size: 8.5pt"><B>Financial institution</B></FONT></TD>
    <TD STYLE="white-space: nowrap; width: 7%; padding-right: 3.5pt; padding-left: 3.5pt">
<DIV STYLE="padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 8.5pt Georgia, Times, Serif; margin: 0; text-align: center"><B>&nbsp;</B></P>
    <P STYLE="font: 8.5pt Georgia, Times, Serif; margin: 0; text-align: center"><B>Current</B></P>
</DIV></TD>
    <TD STYLE="white-space: nowrap; width: 8%; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8.5pt Georgia, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.5pt solid"><B>Noncurrent</B></P></TD>
    <TD STYLE="white-space: nowrap; width: 8%; padding-right: 3.5pt; padding-left: 3.5pt">
<DIV STYLE="padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 8.5pt Georgia, Times, Serif; margin: 0; text-align: center"><B>&nbsp;</B></P>
    <P STYLE="font: 8.5pt Georgia, Times, Serif; margin: 0; text-align: center"><B>Total</B></P>
</DIV></TD>
    <TD STYLE="white-space: nowrap; width: 9%; padding-right: 3.5pt; padding-left: 3.5pt">
<DIV STYLE="padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 8.5pt Georgia, Times, Serif; margin: 0; text-align: center"><B>&nbsp;</B></P>
    <P STYLE="font: 8.5pt Georgia, Times, Serif; margin: 0; text-align: center"><B>Current</B></P>
</DIV></TD>
    <TD STYLE="white-space: nowrap; width: 8%; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8.5pt Georgia, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.5pt solid"><B>Noncurrent</B></P></TD>
    <TD STYLE="white-space: nowrap; width: 7%; padding-right: 3.5pt; padding-left: 3.5pt">
<DIV STYLE="padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 8.5pt Georgia, Times, Serif; margin: 0; text-align: center"><B>&nbsp;</B></P>
    <P STYLE="font: 8.5pt Georgia, Times, Serif; margin: 0; text-align: center"><B>Total</B></P>
</DIV></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><FONT STYLE="font-size: 8.5pt"><B>Local currency</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: right">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 8.5pt">&nbsp;12th issue debentures</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">45,450</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">124,388</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">169,838</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">45,450</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">158,425</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">203,875</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 8.5pt">&nbsp;14th issue debentures</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">33,469</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">33,469</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">51,873</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">24,205</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">76,078</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 8.5pt">&nbsp;17th issue debentures</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">98,853</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">98,546</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">197,399</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">91,850</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">183,335</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">275,185</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 8.5pt">&nbsp;18th issue debentures</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">47,701</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">119,616</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">167,317</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">45,918</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">135,105</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">181,023</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 8.5pt">&nbsp;21st issue debentures</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">174,819</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">174,819</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">175,000</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">174,769</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">349,769</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 8.5pt">&nbsp;22nd issue debentures</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">200,000</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">498,161</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">698,161</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">99,969</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">678,149</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">778,118</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 8.5pt">&nbsp;23rd issue debentures</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">864,751</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">864,751</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">864,678</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">864,678</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 8.5pt">&nbsp;24th issue debentures</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">445,579</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">445,579</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">414,994</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">414,994</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 8.5pt">&nbsp;25th issue debentures</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">1,449,198</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">1,449,198</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">1,442,610</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">1,442,610</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 8.5pt">&nbsp;26th issue debentures</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">1,127,482</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">1,127,482</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">1,047,767</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">1,047,767</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 8.5pt">&nbsp;27th issue debentures</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">997,300</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">997,300</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">997,000</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">997,000</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 8.5pt">&nbsp;28th issue debentures</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">1,197,307</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">1,197,307</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">-</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 8.5pt">&nbsp;Brazilian Federal Savings Bank</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">96,790</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">1,361,806</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">1,458,596</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">90,382</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">1,324,459</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">1,414,841</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 8.5pt">&nbsp;Brazilian Development Bank - BNDES PAC</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">13,394</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">10,008</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">23,402</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">13,185</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">20,247</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">33,432</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 8.5pt">&nbsp;Brazilian Development Bank - BNDES PAC II 9751</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">7,161</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">32,093</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">39,254</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">7,159</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">37,447</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">44,606</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 8.5pt">&nbsp;Brazilian Development Bank - BNDES PAC II 9752</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">4,851</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">21,831</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">26,682</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">4,851</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">25,470</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">30,321</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 8.5pt">&nbsp;Brazilian Development Bank - BNDES ONDA LIMPA</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">26,751</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">66,769</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">93,520</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">26,751</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">86,809</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">113,560</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 8.5pt">&nbsp;Brazilian Development Bank &#8211; BNDES TIET&Ecirc; III</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">117,593</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">646,645</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">764,238</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">86,823</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">542,519</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">629,342</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 8.5pt">&nbsp;Brazilian Development Bank - BNDES 2015</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">33,558</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">429,045</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">462,603</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">33,558</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">454,126</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">487,684</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 8.5pt">&nbsp;Brazilian Development Bank - BNDES 2014</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">6,524</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">24,492</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">31,016</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">5,143</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">23,017</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">28,160</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 8.5pt">&nbsp;Inter-American Development Bank &#8211; IDB 2202 </FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">181,349</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">2,344,164</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">2,525,513</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">181,349</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">2,524,798</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">2,706,147</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 8.5pt">&nbsp;Inter-American Development Bank &#8211; IDB INVEST</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">34,800</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">890,233</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">925,033</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">44,815</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">898,060</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">942,875</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 8.5pt">&nbsp;Leases (Concession Agreements, Program Contracts, and Contract Asset)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">36,074</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">368,305</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">404,379</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">28,847</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">399,896</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">428,743</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 8.5pt">&nbsp;Leases (others)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">64,440</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">60,512</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">124,952</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">36,576</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">9,300</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">45,876</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 8.5pt">&nbsp;Other</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">4,790</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">10,471</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">15,261</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">3,778</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">11,382</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8.5pt">15,160</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 8.5pt">&nbsp;Interest and other charges</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8.5pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">258,086</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8.5pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">-</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8.5pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">258,086</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8.5pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">158,918</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8.5pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">-</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8.5pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">158,918</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 8.5pt"><B>Total in local currency</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8.5pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">2,935,651</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8.5pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">11,739,504</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8.5pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">14,675,155</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8.5pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">2,674,805</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8.5pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">11,035,957</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8.5pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">13,710,762</P></TD></TR>
  </TABLE>
<P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0">&nbsp;</P>


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    <DIV STYLE="margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: right; width: 100%">Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->52<!-- Field: /Sequence --> of 87&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: 85%"><P STYLE="text-align: left; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">ITR - Quarterly Information Form - 9/30/2021 - CIA SANEAMENTO BASICO EST SAO PAULO</P></TD><TD STYLE="text-align: center; width: 15%"><P STYLE="text-align: right; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">Version : 1</P></TD></TR></TABLE><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B></B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B>Notes to the Quarterly Information</B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

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

<P STYLE="font: 11pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Georgia, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><FONT STYLE="font-size: 8.5pt">&nbsp;<B>Borrowings and financing outstanding balance</B></FONT></TD>
    <TD COLSPAN="3" STYLE="padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8.5pt Georgia, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.5pt solid"><B>September 30, 2021</B></P></TD>
    <TD COLSPAN="3" STYLE="padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8.5pt Georgia, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.5pt solid"><B>December 31, 2020</B></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; width: 53%; padding-top: 2.4pt; padding-bottom: 2.4pt"><FONT STYLE="font-size: 8.5pt"><B>Financial institution</B></FONT></TD>
    <TD STYLE="white-space: nowrap; width: 7%; padding-right: 3.5pt; padding-left: 3.5pt">
<DIV STYLE="padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 8.5pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: center"><B>&nbsp;</B></P>
    <P STYLE="font: 8.5pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: center"><B>Current</B></P>
</DIV></TD>
    <TD STYLE="white-space: nowrap; width: 8%; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8.5pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: center; border-bottom: Black 0.5pt solid"><B>Noncurrent</B></P></TD>
    <TD STYLE="white-space: nowrap; width: 8%; padding-right: 3.5pt; padding-left: 3.5pt">
<DIV STYLE="padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 8.5pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: center"><B>&nbsp;</B></P>
    <P STYLE="font: 8.5pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: center"><B>Total</B></P>
</DIV></TD>
    <TD STYLE="white-space: nowrap; width: 9%; padding-right: 3.5pt; padding-left: 3.5pt">
<DIV STYLE="padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 8.5pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: center"><B>&nbsp;</B></P>
    <P STYLE="font: 8.5pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: center"><B>Current</B></P>
</DIV></TD>
    <TD STYLE="white-space: nowrap; width: 8%; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8.5pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: center; border-bottom: Black 0.5pt solid"><B>Noncurrent</B></P></TD>
    <TD STYLE="white-space: nowrap; width: 7%; padding-right: 3.5pt; padding-left: 3.5pt">
<DIV STYLE="padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 8.5pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: center"><B>&nbsp;</B></P>
    <P STYLE="font: 8.5pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: center"><B>Total</B></P>
</DIV></TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-top: 2.4pt; padding-bottom: 2.4pt"><FONT STYLE="font-size: 8.5pt"><B>Foreign currency</B></FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt; white-space: nowrap; text-align: right">&nbsp;</TD>
    <TD STYLE="padding: 2.4pt 3.5pt; white-space: nowrap; text-align: right">&nbsp;</TD>
    <TD STYLE="padding: 2.4pt 3.5pt; white-space: nowrap; text-align: right">&nbsp;</TD>
    <TD STYLE="padding: 2.4pt 3.5pt; white-space: nowrap; text-align: right">&nbsp;</TD>
    <TD STYLE="padding: 2.4pt 3.5pt; white-space: nowrap; text-align: right">&nbsp;</TD>
    <TD STYLE="padding: 2.4pt 3.5pt; white-space: nowrap; text-align: right">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-top: 2.4pt; padding-bottom: 2.4pt"><FONT STYLE="font-size: 8.5pt">&nbsp;Inter-American Development Bank - IDB 1212 &#8211; US$ 41,112 thousand (US$ 51,390 thousand in December 2020)</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8.5pt">55,907</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8.5pt">167,720</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8.5pt">223,627</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8.5pt">53,412</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8.5pt">213,649</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8.5pt">267,061</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-top: 2.4pt; padding-bottom: 2.4pt"><FONT STYLE="font-size: 8.5pt">&nbsp;Inter-American Development Bank - IDB 4623 &#8211; US$ 24,942 thousand (US$ 10,220 thousand in December 2020)</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8.5pt">-</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8.5pt">125,377</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8.5pt">125,377</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8.5pt">-</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8.5pt">46,474</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8.5pt">46,474</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-top: 2.4pt; padding-bottom: 2.4pt"><FONT STYLE="font-size: 8.5pt">&nbsp;International Bank for Reconstruction and Development (IBRD) &#8211; IBRDs 7662 and 8906 - US$ 76,712 thousand (US$ 82,792 thousand in December 2020)</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8.5pt">33,070</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8.5pt">376,286</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8.5pt">409,356</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8.5pt">31,594</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8.5pt">393,949</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8.5pt">425,543</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-top: 2.4pt; padding-bottom: 2.4pt"><FONT STYLE="font-size: 8.5pt">&nbsp;JICA 15 &#8211; &yen; 9,219,440 thousand (&yen; 10,371,870 thousand in December 2020)</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8.5pt">56,215</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8.5pt">393,509</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8.5pt">449,724</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8.5pt">58,117</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8.5pt">464,936</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8.5pt">523,053</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-top: 2.4pt; padding-bottom: 2.4pt"><FONT STYLE="font-size: 8.5pt">&nbsp;JICA 18 &#8211; &yen; 8,289,280 thousand (&yen; 9,325,440 thousand in December 2020)</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8.5pt">50,544</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8.5pt">353,641</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8.5pt">404,185</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8.5pt">52,253</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8.5pt">417,846</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8.5pt">470,099</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-top: 2.4pt; padding-bottom: 2.4pt"><FONT STYLE="font-size: 8.5pt">&nbsp;JICA 17 &#8211; &yen; 3,506,879 thousand (&yen; 3,349,203 thousand in December 2020)</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8.5pt">11,797</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8.5pt">158,364</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8.5pt">170,161</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8.5pt">11,260</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8.5pt">156,738</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8.5pt">167,998</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-top: 2.4pt; padding-bottom: 2.4pt"><FONT STYLE="font-size: 8.5pt">&nbsp;JICA 19 &#8211; &yen; 28,109,529 thousand (&yen; 29,923,047 thousand in December 2020)</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8.5pt">88,463</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8.5pt">1,280,926</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8.5pt">1,369,389</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8.5pt">91,456</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8.5pt">1,415,683</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8.5pt">1,507,139</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-top: 2.4pt; padding-bottom: 2.4pt"><FONT STYLE="font-size: 8.5pt">&nbsp;IDB 1983AB &#8211; US$ 15,385 thousand (US$ 23,077 thousand in December 2020)</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8.5pt">41,842</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8.5pt">41,147</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8.5pt">82,989</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8.5pt">39,975</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8.5pt">78,943</FONT></TD>
    <TD STYLE="padding: 2.4pt 3.5pt; white-space: nowrap; text-align: right"><FONT STYLE="font-size: 8.5pt">118,918</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-top: 2.4pt; padding-bottom: 2.4pt"><FONT STYLE="font-size: 8.5pt">&nbsp;Interest and other charges</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8.5pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 0.5pt solid">7,697</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8.5pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 0.5pt solid">-</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8.5pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 0.5pt solid">7,697</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8.5pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 0.5pt solid">21,577</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8.5pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 0.5pt solid">-</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8.5pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 0.5pt solid">21,577</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-top: 2.4pt; padding-bottom: 2.4pt"><FONT STYLE="font-size: 8.5pt"><B>Total in foreign currency</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8.5pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 0.5pt solid">345,535</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8.5pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 0.5pt solid">2,896,970</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8.5pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 0.5pt solid">3,242,505</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8.5pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 0.5pt solid">359,644</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8.5pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 0.5pt solid">3,188,218</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8.5pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 0.5pt solid">3,547,862</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: right">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-top: 2.4pt; padding-bottom: 2.4pt"><FONT STYLE="font-size: 8.5pt"><B>Total borrowings and financing</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8.5pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 1.5pt double">3,281,186</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8.5pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 1.5pt double">14,636,474</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8.5pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 1.5pt double">17,917,660</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8.5pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 1.5pt double">3,034,449</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8.5pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 1.5pt double">14,224,175</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8.5pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 1.5pt double">17,258,624</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD COLSPAN="7" STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 2.4pt 0"><I>&nbsp;</I></P>
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 2.4pt 0">Exchange rate as of September 30, 2021: US$ 5.4394; &yen; 0.04878 (as of December
    31, 2020: US$ 5.1967; &yen; 0.05043).</P>
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 2.4pt 0">As of September 30, 2021, the Company did not have balances of borrowings
    and financing raised during the year, maturing within 12 months.</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD COLSPAN="7" STYLE="white-space: nowrap; padding-top: 2.4pt; padding-bottom: 2.4pt">&nbsp;</TD></TR>
  </TABLE>

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    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 85%"><P STYLE="text-align: left; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">ITR - Quarterly Information Form - 9/30/2021 - CIA SANEAMENTO BASICO EST SAO PAULO</P></TD><TD STYLE="text-align: center; width: 15%"><P STYLE="text-align: right; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">Version : 1</P></TD></TR></TABLE><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B></B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B>Notes to the Quarterly Information</B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt">&nbsp;</P></DIV>
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<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Georgia, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; width: 50%; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Local currency</B></P></TD>
    <TD STYLE="white-space: nowrap; width: 9%; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Guarantees</B></P></TD>
    <TD STYLE="width: 8%; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Maturity</B></P></TD>
    <TD STYLE="width: 23%; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Annual interest
    rate</B></P></TD>
    <TD STYLE="width: 10%; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Inflation adjustment</B></P></TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; padding-right: 3.5pt; padding-left: 3.5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; padding-right: 3.5pt; padding-left: 3.5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; padding-right: 3.5pt; padding-left: 3.5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 8pt">12th issue debentures</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">Own funds</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8pt">2025</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8pt">TR + 9.5% </FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 8pt">14th issue debentures</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">Own funds</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8pt">2022</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8pt">TJLP + 1.92 % (series 1 and 3) and 9.19% (series 2)</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">IPCA (series 2)</FONT></TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 8pt">17th issue debentures</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">Own funds</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8pt">2023</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8pt">CDI + 0.75% (series 1), 4.5% (series 2), and 4.75% (series 3)</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">IPCA (series 2 and 3)</FONT></TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 8pt">18th issue debentures</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">Own funds</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8pt">2024</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8pt">TJLP + 1.92 % (series 1 and 3) and 8.25% (series 2)</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">IPCA (series 2)</FONT></TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 8pt">21st issue debentures</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">Own funds</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8pt">2022</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8pt">CDI + 0.60% (series 1) and CDI+ 0.90% (series 2)</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 8pt">22nd issue debentures</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">Own funds</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8pt">2025</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8pt">CDI + 0.58% (series 1), CDI+ 0.90% (series 2), and 6.0% (series 3)</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">IPCA (series 3)</FONT></TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 8pt">23rd issue debentures</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">Own funds</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8pt">2027</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8pt">CDI + 0.49% (series 1) and CDI+ 0.63% (series 2)</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 8pt">24th issue debentures</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">Own funds</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8pt">2029</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8pt">3.20% (series 1) and 3.37% (series 2)</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">IPCA (series 1 and 2)</FONT></TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 8pt">25th issue debentures</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">Own funds</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8pt">October 2021</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8pt">CDI + 3.30%</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 8pt">26th issue debentures</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">Own funds</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8pt">2030</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8pt">4.65% (series 1) and 4.95% (series 2)</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">IPCA (series 1 and 2)</FONT></TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 8pt">27th issue debentures</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">Own funds</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8pt">2027</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8pt">CDI + 1.60% (series 1), CDI+ 1.80% (series 2), and 2.25% (series 3)</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 8pt">28th issue debentures</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">Own funds</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8pt">2028</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8pt">CDI + 1.20% (series 1) and CDI+ 1.44% (series 2) and 1.60% (series 3)</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 8pt">Brazilian Federal Savings Bank</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">Own funds</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8pt">2021/2042</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8pt">5% to 9.5%</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">TR</FONT></TD></TR>
  <TR>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 8pt">Brazilian Development Bank - BNDES PAC</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">Own funds</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8pt">2023</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8pt">TJLP + 1.82% </FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 8pt">Brazilian Development Bank - BNDES PAC II 9751</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">Own funds</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8pt">2027</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8pt">TJLP + 1.72% </FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 8pt">Brazilian Development Bank - BNDES PAC II 9752</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">Own funds</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8pt">2027</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8pt">TJLP + 1.72% </FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 8pt">Brazilian Development Bank - BNDES ONDA LIMPA</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">Own funds</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8pt">2025</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8pt">TJLP + 1.92% </FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 8pt">Brazilian Development Bank &#8211; BNDES TIET&Ecirc; III</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">Own funds</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8pt">2028</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8pt">TJLP + 1.66% </FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 8pt">Brazilian Development Bank - BNDES 2015</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">Own funds</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8pt">2035</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8pt">TJLP + 2.18% </FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 8pt">Brazilian Development Bank - BNDES 2014</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">Own funds</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8pt">2026</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8pt">TJLP + 1.76%</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 8.5pt">Inter-American Development Bank &#8211; IDB 2202</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">Government</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8pt">2035</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8pt">CDI + 0.86%</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 8.5pt">Inter-American Development Bank &#8211; IDB INVEST</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">Own funds</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8pt">2034</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8pt">CDI+ 1.90% and CDI 2.70%</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 8pt">Leases </FONT><FONT STYLE="font-size: 8.5pt">(Concession Agreements, Program Contracts, and Contract Asset)</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8pt">2035</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8pt">7.73% to 10.12% </FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">IPC</FONT></TD></TR>
  <TR>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 8pt">Leases (others)</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8pt">2026</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8pt">4.25% to 10.70%</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 8pt">Other</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">Own funds</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8pt">2025</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 8pt">3% (FEHIDRO) TJLP + 1.5% (FINEP)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD></TR>
  </TABLE>
<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>


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    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 85%"><P STYLE="text-align: left; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">ITR - Quarterly Information Form - 9/30/2021 - CIA SANEAMENTO BASICO EST SAO PAULO</P></TD><TD STYLE="text-align: center; width: 15%"><P STYLE="text-align: right; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">Version : 1</P></TD></TR></TABLE><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B></B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B>Notes to the Quarterly Information</B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt">&nbsp;</P></DIV>
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<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 11pt/110% Georgia, Times, Serif; margin: 0; text-align: justify; text-indent: -35.45pt">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Georgia, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; width: 50%; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.5pt solid"><B>Foreign currency</B></P></TD>
    <TD STYLE="white-space: nowrap; width: 10%; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.5pt solid"><B>Guarantees</B></P></TD>
    <TD STYLE="width: 8%; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.5pt solid"><B>Maturity</B></P></TD>
    <TD STYLE="width: 23%; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.5pt solid"><B>Annual interest rate</B></P></TD>
    <TD STYLE="width: 9%; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.5pt solid"><B>Exchange variation</B></P></TD></TR>
  <TR>
    <TD STYLE="padding-top: 1pt; padding-bottom: 2pt">&nbsp;</TD>
    <TD STYLE="padding-top: 1pt; padding-bottom: 2pt; text-align: right">&nbsp;</TD>
    <TD STYLE="padding-top: 1pt; padding-bottom: 2pt; text-align: right">&nbsp;</TD>
    <TD STYLE="padding-top: 1pt; padding-bottom: 2pt; text-align: right">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-top: 1pt; padding-bottom: 2pt; text-align: center">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="padding-top: 1pt; padding-bottom: 2pt"><FONT STYLE="font-size: 8pt">Inter-American Development Bank - IDB 1212 </FONT><FONT STYLE="font-size: 8.5pt">&#8211; US$ 41,112 thousand</FONT></TD>
    <TD STYLE="padding-top: 1pt; padding-bottom: 2pt; text-align: center"><FONT STYLE="font-size: 8pt">Government</FONT></TD>
    <TD STYLE="padding-top: 1pt; padding-bottom: 2pt; text-align: right"><FONT STYLE="font-size: 8pt">2025</FONT></TD>
    <TD STYLE="padding-top: 1pt; padding-bottom: 2pt; text-align: right"><FONT STYLE="font-size: 8pt">2.87% (*)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-top: 1pt; padding-bottom: 2pt; text-align: center"><FONT STYLE="font-size: 8pt">US$</FONT></TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; padding-top: 1pt; padding-bottom: 2pt"><FONT STYLE="font-size: 8.5pt">Inter-American Development Bank - IDB 4623 &#8211; US$ 24,942 thousand</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-top: 1pt; padding-bottom: 2pt; text-align: center"><FONT STYLE="font-size: 8pt">Government</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-top: 1pt; padding-bottom: 2pt; text-align: right"><FONT STYLE="font-size: 8pt">2044</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-top: 1pt; padding-bottom: 2pt; text-align: right"><FONT STYLE="font-size: 8pt">1.19% (*)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-top: 1pt; padding-bottom: 2pt; text-align: center"><FONT STYLE="font-size: 8pt">US$</FONT></TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; padding-top: 1pt; padding-bottom: 2pt"><FONT STYLE="font-size: 8pt">International Bank for Reconstruction and Development (IBRD) &#8211; </FONT><FONT STYLE="font-size: 8.5pt">IBRDs 7662 and 8906 - US$ 76,712 thousand</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-top: 1pt; padding-bottom: 2pt; text-align: center"><FONT STYLE="font-size: 8pt">Government</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-top: 1pt; padding-bottom: 2pt; text-align: right"><FONT STYLE="font-size: 8pt">2034 and 2048</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-top: 1pt; padding-bottom: 2pt; text-align: right"><FONT STYLE="font-size: 8pt">0.48% and 1.58% (*)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-top: 1pt; padding-bottom: 2pt; text-align: center"><FONT STYLE="font-size: 8pt">US$</FONT></TD></TR>
  <TR>
    <TD STYLE="padding-top: 1pt; padding-bottom: 2pt"><FONT STYLE="font-size: 8pt">JICA 15 </FONT><FONT STYLE="font-size: 8.5pt">&#8211; &yen; 9,219,440 thousand</FONT></TD>
    <TD STYLE="padding-top: 1pt; padding-bottom: 2pt; text-align: center"><FONT STYLE="font-size: 8pt">Government</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-top: 1pt; padding-bottom: 2pt; text-align: right"><FONT STYLE="font-size: 8pt">2029</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-top: 1pt; padding-bottom: 2pt; text-align: right"><FONT STYLE="font-size: 8pt">1.8% and 2.5%</FONT></TD>
    <TD STYLE="padding-top: 1pt; padding-bottom: 2pt; text-align: center"><FONT STYLE="font-size: 8pt">Yen</FONT></TD></TR>
  <TR>
    <TD STYLE="padding-top: 1pt; padding-bottom: 2pt"><FONT STYLE="font-size: 8pt">JICA 18 </FONT><FONT STYLE="font-size: 8.5pt">&#8211; &yen; 8,289,280 thousand</FONT></TD>
    <TD STYLE="padding-top: 1pt; padding-bottom: 2pt; text-align: center"><FONT STYLE="font-size: 8pt">Government</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-top: 1pt; padding-bottom: 2pt; text-align: right"><FONT STYLE="font-size: 8pt">2029</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-top: 1pt; padding-bottom: 2pt; text-align: right"><FONT STYLE="font-size: 8pt">1.8% and 2.5%</FONT></TD>
    <TD STYLE="padding-top: 1pt; padding-bottom: 2pt; text-align: center"><FONT STYLE="font-size: 8pt">Yen</FONT></TD></TR>
  <TR>
    <TD STYLE="padding-top: 1pt; padding-bottom: 2pt"><FONT STYLE="font-size: 8pt">JICA 17 </FONT><FONT STYLE="font-size: 8.5pt">&#8211; &yen; 3,506,879 thousand </FONT></TD>
    <TD STYLE="padding-top: 1pt; padding-bottom: 2pt; text-align: center"><FONT STYLE="font-size: 8pt">Government</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-top: 1pt; padding-bottom: 2pt; text-align: right"><FONT STYLE="font-size: 8pt">2035</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-top: 1pt; padding-bottom: 2pt; text-align: right"><FONT STYLE="font-size: 8pt">1.2% and 0.01% </FONT></TD>
    <TD STYLE="padding-top: 1pt; padding-bottom: 2pt; text-align: center"><FONT STYLE="font-size: 8pt">Yen</FONT></TD></TR>
  <TR>
    <TD STYLE="padding-top: 1pt; padding-bottom: 2pt"><FONT STYLE="font-size: 8pt">JICA 19 </FONT><FONT STYLE="font-size: 8.5pt">&#8211; &yen; 28,109,529 thousand </FONT></TD>
    <TD STYLE="padding-top: 1pt; padding-bottom: 2pt; text-align: center"><FONT STYLE="font-size: 8pt">Government</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-top: 1pt; padding-bottom: 2pt; text-align: right"><FONT STYLE="font-size: 8pt">2037</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-top: 1pt; padding-bottom: 2pt; text-align: right"><FONT STYLE="font-size: 8pt">1.7% and 0.01% </FONT></TD>
    <TD STYLE="padding-top: 1pt; padding-bottom: 2pt; text-align: center"><FONT STYLE="font-size: 8pt">Yen</FONT></TD></TR>
  <TR>
    <TD STYLE="padding-top: 1pt; padding-bottom: 2pt"><FONT STYLE="font-size: 8pt">IDB 1983AB </FONT><FONT STYLE="font-size: 8.5pt">&#8211; US$ 15,385 thousand</FONT></TD>
    <TD STYLE="padding-top: 1pt; padding-bottom: 2pt; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-top: 1pt; padding-bottom: 2pt; text-align: right"><FONT STYLE="font-size: 8pt">2023</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-top: 1pt; padding-bottom: 2pt; text-align: right"><FONT STYLE="font-size: 8pt">2.08% to 2.38% (*)</FONT></TD>
    <TD STYLE="padding-top: 1pt; padding-bottom: 2pt; text-align: center"><FONT STYLE="font-size: 8pt">US$</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 8pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

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<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">(*) Rates comprising LIBOR + contractually defined spread.</P>

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<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 10pt">(i)</FONT></TD><TD><FONT STYLE="font-size: 10pt">Payment schedule &#8211; accounting balances as of September 30, 2021</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Georgia, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; width: 28%; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: center">&nbsp;</TD>
    <TD STYLE="width: 9%; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 7pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>2021</B></P></TD>
    <TD STYLE="width: 9%; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 7pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>2022</B></P></TD>
    <TD STYLE="width: 9%; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 7pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>2023</B></P></TD>
    <TD STYLE="width: 9%; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 7pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>2024</B></P></TD>
    <TD STYLE="width: 9%; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 7pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>2025</B></P></TD>
    <TD STYLE="width: 9%; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 7pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>2026</B></P></TD>
    <TD STYLE="width: 9%; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 7pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>2027 to 2048 </B></P></TD>
    <TD STYLE="white-space: nowrap; width: 9%; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 7pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>TOTAL</B></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: justify"><FONT STYLE="font-size: 7pt"><B><I>LOCAL CURRENCY</I></B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: justify"><FONT STYLE="font-size: 8pt">Debentures</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">1,497,746</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">591,574</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">690,472</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">1,056,617</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">939,196</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">828,655</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">1,918,360</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">7,522,620</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: justify"><FONT STYLE="font-size: 8pt">Brazilian Federal Savings Bank</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">23,762</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">98,069</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">92,713</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">91,889</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">97,638</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">103,749</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">950,776</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">1,458,596</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: justify"><FONT STYLE="font-size: 8pt">BNDES</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">52,458</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">209,832</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">203,098</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">196,438</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">176267</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">166,453</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">436,169</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">1,440,715</FONT></TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding: 2.4pt 2.85pt; text-align: justify"><FONT STYLE="font-size: 8pt">IDB 2202</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">181,349</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">181,349</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">181,349</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">181,349</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">181,349</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">1,618,768</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">2,525,513</FONT></TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding: 2.4pt 2.85pt; text-align: justify"><FONT STYLE="font-size: 8pt">IDB INVEST</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">34,800</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">37,340</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">39,550</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">44,300</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">106,390</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">662,653</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">925,033</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: justify"><FONT STYLE="font-size: 8pt">Leases </FONT><FONT STYLE="font-size: 8.5pt">(Concession Agreements, Program Contracts, and Contract Asset)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">36,074</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">38,480</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">40,578</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">43,470</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">35,183</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">29,878</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">180,716</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">404,379</FONT></TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding: 2.4pt 2.85pt; text-align: justify"><FONT STYLE="font-size: 8pt">Leases (others)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">17,311</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">59,439</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">32,982</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">8,699</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">5,358</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">1,163</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">124,952</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: justify"><FONT STYLE="font-size: 8pt">Other</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">1,197</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">4,790</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">4,719</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">2,393</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">2,162</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">15,261</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: justify"><FONT STYLE="font-size: 8pt">Interest and other charges</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 0.5pt solid">258,086</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 0.5pt solid">-</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 0.5pt solid">-</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 0.5pt solid">-</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 0.5pt solid">-</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 0.5pt solid">-</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 0.5pt solid">-</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 0.5pt solid">258,086</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: justify"><FONT STYLE="font-size: 8pt"><I>TOTAL IN LOCAL CURRENCY</I></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 0.5pt solid">1,886,634</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 0.5pt solid">1,218,333</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 0.5pt solid">1,283,251</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 0.5pt solid">1,620,405</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 0.5pt solid">1,481,453</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 0.5pt solid">1,417,637</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 0.5pt solid">5,767,442</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 0.5pt solid">14,675,155</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: justify"><FONT STYLE="font-size: 7pt"><B><I>FOREIGN CURRENCY</I></B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: justify"><FONT STYLE="font-size: 8pt">IDB</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">55,907</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">55,907</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">55,907</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">59,477</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">7,140</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">114,666</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">349,004</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: justify"><FONT STYLE="font-size: 8pt">IBRD</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">33,070</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">33,070</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">33,070</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">33,070</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">33,070</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">244,006</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">409,356</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: justify"><FONT STYLE="font-size: 8pt">JICA</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">5,899</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">207,020</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">207,020</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">207,020</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">207,020</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">207,020</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">1,352,460</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">2,393,459</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: justify"><FONT STYLE="font-size: 8pt">IDB 1983AB</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">41,842</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">41,147</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: right"><FONT STYLE="font-size: 8pt">82,989</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: justify"><FONT STYLE="font-size: 8pt">Interest and other charges</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 0.5pt solid">7,697</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 0.5pt solid">-</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 0.5pt solid">-</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 0.5pt solid">-</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 0.5pt solid">-</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 0.5pt solid">-</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 0.5pt solid">-</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 0.5pt solid">7,697</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: justify"><FONT STYLE="font-size: 8pt"><I>TOTAL IN FOREIGN CURRENCY</I></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 0.5pt solid">13,596</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 0.5pt solid">337,839</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 0.5pt solid">337,144</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 0.5pt solid">295,997</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 0.5pt solid">299,567</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 0.5pt solid">247,230</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 0.5pt solid">1,711,132</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 0.5pt solid">3,242,505</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt; text-align: justify"><FONT STYLE="font-size: 8pt"><I>Total</I></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 1.5pt double">1,900,230</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 1.5pt double">1,556,172</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 1.5pt double">1,620,395</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 1.5pt double">1,916,402</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 1.5pt double">1,781,020</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 1.5pt double">1,664,867</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 1.5pt double">7,478,574</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 1.5pt double">17,917,660</P></TD></TR>
  </TABLE>

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    <DIV STYLE="margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: right; width: 100%">Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->56<!-- Field: /Sequence --> of 87&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: 85%"><P STYLE="text-align: left; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">ITR - Quarterly Information Form - 9/30/2021 - CIA SANEAMENTO BASICO EST SAO PAULO</P></TD><TD STYLE="text-align: center; width: 15%"><P STYLE="text-align: right; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">Version : 1</P></TD></TR></TABLE><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B></B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B>Notes to the Quarterly Information</B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt">&nbsp;</P></DIV>
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<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 10pt">(ii)</FONT></TD><TD><FONT STYLE="font-size: 10pt">Changes</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Georgia, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; width: 23%; padding-right: 3.5pt; padding-left: 3.5pt"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; width: 6%; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 6.5pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt"><B>December
                                            31, 2020</B></FONT></P></TD>
    <TD STYLE="width: 7%; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 6.5pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt"><B>Addition
                                            (lease)</B></FONT></P></TD>
    <TD STYLE="width: 6%; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 6.5pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt"><B>Funding</B></FONT></P></TD>
    <TD STYLE="width: 6%; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 6.5pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt"><B>Borrowing
                                            costs</B></FONT></P></TD>
    <TD STYLE="width: 6%; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 6.5pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt"><B>Monetary
                                            and exchange variation</B></FONT></P></TD>
    <TD STYLE="width: 7%; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 6.5pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt"><B>Inflation
                                            adjustment / exchange variation and incorporated interest- Capitalized</B></FONT></P></TD>
    <TD STYLE="width: 6%; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 6.5pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt"><B>Interest
                                            paid</B></FONT></P></TD>
    <TD STYLE="white-space: nowrap; width: 7%; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 6.5pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt"><B>Amortization</B></FONT></P></TD>
    <TD STYLE="width: 7%; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 6.5pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt"><B>Accrued
                                            interest</B></FONT></P></TD>
    <TD STYLE="width: 7%; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 6.5pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt"><B>Provision
                                            for interest and fees - Capitalized</B></FONT></P></TD>
    <TD STYLE="width: 6%; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 6.5pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt"><B>Expenses
                                            with borrowing costs</B></FONT></P></TD>
    <TD STYLE="white-space: nowrap; width: 6%; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 6.5pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt"><B>September
                                            30, 2021</B></FONT></P></TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 3.5pt; padding-left: 3.5pt"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 2.85pt; padding-bottom: 1pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="vertical-align: top; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 6pt"><B><I>LOCAL
    CURRENCY</I></B></FONT></TD>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 2.85pt; padding-bottom: 1pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="vertical-align: top; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 6pt">Debentures</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; text-align: right"><FONT STYLE="font-size: 6pt">6,756,504</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">1,200,000</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">(4,074)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">147,412</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">(171,784)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">(464,295)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">203,760</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">72,646</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">12,442</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">7,752,611</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 6pt">Brazilian
    Federal Savings Bank</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; text-align: right"><FONT STYLE="font-size: 6pt">1,418,832</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">112,968</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">(84,408)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">(69,217)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">58,164</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">26,358</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">1,462,697</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 6pt">BNDES</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; text-align: right"><FONT STYLE="font-size: 6pt">1,370,902</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">207,136</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">(62,990)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">(133,721)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">38,184</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">24,931</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">194</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">1,444,636</FONT></TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 6pt">IDB
    2202</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; text-align: right"><FONT STYLE="font-size: 6pt">2,730,195</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">(97,829)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">(181,349)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">37,833</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">47,108</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">716</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">2,536,674</FONT></TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 6pt">IDB
    INVEST</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; text-align: right"><FONT STYLE="font-size: 6pt">944,513</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">(33,276)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">(18,340)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">40,522</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">498</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">933,917</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 6pt">Leases
    (Concession Agreements, Program Contracts, and Contract Asset)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 2pt; text-align: right"><FONT STYLE="font-size: 6pt">428,743</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 2pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 2pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 2pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 2pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 2pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 2pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">(39,861)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 2pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">(24,364)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 2pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">39,861</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 2pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 2pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 2pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">404,379</FONT></TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 6pt">Leases
    (others)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; text-align: right"><FONT STYLE="font-size: 6pt">45,876</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">123,705</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">(11,957)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">(56,586)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">23,914</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">124,952</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 6pt">Other</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">15,197</FONT></P></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">-</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">2,921</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">(32)</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">-</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">-</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">(515)</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">(2,789)</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">489</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">18</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">-</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">15,289</FONT></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 6pt"><I>TOTAL
    IN LOCAL CURRENCY</I></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">13,710,762</FONT></P></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">123,705</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">1,523,025</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">(4,106)</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">147,412</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">-</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">(502,620)</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">(950,661)</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">442,727</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">171,061</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">13,850</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">14,675,155</FONT></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 6pt"><B><I>FOREIGN
    CURRENCY</I></B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 6pt">IDB
    1212</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; text-align: right"><FONT STYLE="font-size: 6pt">270,804</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">9,763</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">(7,459)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">(53,197)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">4,999</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">224,910</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 6pt">IDB
    4623</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; text-align: right"><FONT STYLE="font-size: 6pt">46,498</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">78,537</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">(3,796)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">4,022</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">(324)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">793</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">140</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">125,870</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 6pt">IBRD</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; text-align: right"><FONT STYLE="font-size: 6pt">426,860</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">(3,377)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">19,989</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">(2,481)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">(32,965)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">1,255</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">165</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">409,446</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 6pt">JICA</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; text-align: right"><FONT STYLE="font-size: 6pt">2,684,321</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">16,242</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">(41)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">(90,210)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">7,137</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">(42,376)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">(208,100)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">26,774</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">4,565</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">143</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">2,398,455</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 6pt">IDB
    1983AB</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">119,379</FONT></P></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">-</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">-</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">-</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">4,365</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">-</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">(1,617)</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">(40,606)</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">1,513</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">478</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">312</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">83,824</FONT></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 6pt"><I>TOTAL
    IN FOREIGN CURRENCY</I></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">3,547,862</FONT></P></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">-</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">94,779</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">(7,214)</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">(52,071)</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">7,137</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">(54,257)</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">(334,868)</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">35,334</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">5,043</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">760</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">3,242,505</FONT></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 6pt"><I>Total</I></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double"><FONT STYLE="font-size: 6pt">17,258,624</FONT></P></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double"><FONT STYLE="font-size: 6pt">123,705</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double"><FONT STYLE="font-size: 6pt">1,617,804</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double"><FONT STYLE="font-size: 6pt">(11,320)</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double"><FONT STYLE="font-size: 6pt">95,341</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double"><FONT STYLE="font-size: 6pt">7,137</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double"><FONT STYLE="font-size: 6pt">(556,877)</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double"><FONT STYLE="font-size: 6pt">(1,285,529)</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double"><FONT STYLE="font-size: 6pt">478,061</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double"><FONT STYLE="font-size: 6pt">176,104</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double"><FONT STYLE="font-size: 6pt">14,610</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double"><FONT STYLE="font-size: 6pt">17,917,660</FONT></P></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>


<!-- Field: Page; Sequence: 59 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: right; width: 100%">Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->57<!-- Field: /Sequence --> of 87&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: 85%"><P STYLE="text-align: left; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">ITR - Quarterly Information Form - 9/30/2021 - CIA SANEAMENTO BASICO EST SAO PAULO</P></TD><TD STYLE="text-align: center; width: 15%"><P STYLE="text-align: right; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">Version : 1</P></TD></TR></TABLE><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B></B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B>Notes to the Quarterly Information</B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 11pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Georgia, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; width: 22%; padding-right: 3.5pt; padding-left: 3.5pt"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; width: 6%; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 6.5pt Georgia, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt"><B>December
    31, 2019</B></FONT></P></TD>
    <TD STYLE="width: 6%; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 7pt Georgia, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt"><B>Foreign/local
    currency translation</B></FONT></P></TD>
    <TD STYLE="width: 7%; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 6.5pt Georgia, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt"><B>Addition
    (lease)</B></FONT></P></TD>
    <TD STYLE="width: 5%; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 6.5pt Georgia, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt"><B>Funding</B></FONT></P></TD>
    <TD STYLE="width: 5%; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 6.5pt Georgia, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt"><B>Borrowing
    costs</B></FONT></P></TD>
    <TD STYLE="width: 6%; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 6.5pt Georgia, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt"><B>Monetary
    and exchange variation</B></FONT></P></TD>
    <TD STYLE="width: 7%; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 6.5pt Georgia, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt"><B>Inflation
    adjustment / exchange variation and incorporated interest- Capitalized</B></FONT></P></TD>
    <TD STYLE="width: 5%; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 6.5pt Georgia, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt"><B>Interest
    paid</B></FONT></P></TD>
    <TD STYLE="white-space: nowrap; width: 7%; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 6.5pt Georgia, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt"><B>Amortization</B></FONT></P></TD>
    <TD STYLE="width: 7%; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 6.5pt Georgia, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt"><B>Accrued
    interest</B></FONT></P></TD>
    <TD STYLE="width: 6%; padding-right: 3.5pt; padding-left: 3.5pt"><DIV STYLE="padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid"><P STYLE="font: 6.5pt Georgia, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-size: 6pt"><B>Accrued interest and
    </B></FONT></P>
    <P STYLE="font: 6.5pt Georgia, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-size: 6pt"><B>rates - Capitalized</B></FONT></P>
</DIV></TD>
    <TD STYLE="width: 5%; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 6.5pt Georgia, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt"><B>Expenses
    with borrowing costs</B></FONT></P></TD>
    <TD STYLE="white-space: nowrap; width: 6%; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 6.5pt Georgia, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt"><B>September
    30, 2020</B></FONT></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 6pt"><B><I>LOCAL
    CURRENCY</I></B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 6pt">Debentures</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; text-align: right"><FONT STYLE="font-size: 6pt">3,711,228</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">2,507,640</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">(48,953)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">28,217</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">(137,876)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">(538,405)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">146,016</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">15,028</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">6,285</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">5,689,180</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 6pt">Brazilian
    Federal Savings Bank</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; text-align: right"><FONT STYLE="font-size: 6pt">1,429,250</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">39,267</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">(84,065)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">(62,995)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">54,926</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">29,050</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">1,405,433</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 6pt">BNDES</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; text-align: right"><FONT STYLE="font-size: 6pt">1,201,411</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">210,000</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">(47,164)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">(81,213)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">37,146</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">21,589</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">194</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">1,341,963</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 6pt">IDB
    2202</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">2,807,371</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">(37,613)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">(90,674)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">15,201</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">16,628</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">318</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">2,711,231</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 6pt">Leases
    (Concession Agreements, Program Contracts, and Contract Asset)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; text-align: right"><FONT STYLE="font-size: 6pt">459,671</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">(43,698)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">(17,702)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">39,619</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">437,890</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 6pt">Leases</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; text-align: right"><FONT STYLE="font-size: 6pt">74,453</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">26,670</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">(6,773)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">(42,385)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">6,599</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">58,564</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 6pt">Other</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">9,898</FONT></P></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">-</FONT></P></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">-</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">7,252</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">-</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">-</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">-</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">(486)</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">(1,340)</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">472</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">26</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">-</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">15,822</FONT></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 6pt"><I>TOTAL
    IN LOCAL CURRENCY</I></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">6,885,911</FONT></P></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">2,807,371</FONT></P></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">26,670</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">2,764,159</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">(48,953)</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">28,217</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">-</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">(357,675)</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">(834,714)</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">299,979</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">82,321</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">6,797</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">11,660,083</FONT></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 6pt"><B><I>FOREIGN
    CURRENCY</I></B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 6pt">IDB
    2202</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; text-align: right"><FONT STYLE="font-size: 6pt">2,063,069</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">(2,807,371)</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">776,640</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">48,246</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">(34,150)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">(71,943)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">416</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">24,695</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">398</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 6pt">IDB
    1212</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; text-align: right"><FONT STYLE="font-size: 6pt">253,121</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">90,456</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">(10,860)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">(49,145)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">8,104</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">291,676</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 6pt">IBRD</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; text-align: right"><FONT STYLE="font-size: 6pt">357,880</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">(2,029)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">138,788</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">1,217</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">(7,572)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">(31,216)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">4,544</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">752</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">96</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">462,460</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 6pt">Eurobonds</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; text-align: right"><FONT STYLE="font-size: 6pt">1,413,956</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">457,931</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">(104,170)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">(1,868,676)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">90,941</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">9,195</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">823</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 6pt">JICA</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; text-align: right"><FONT STYLE="font-size: 6pt">2,106,908</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">34,215</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">(67)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">876,498</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">15,704</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">(42,970)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">(191,604)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">31,052</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">5,107</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">143</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 6pt">2,834,986</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 6pt">IDB
    1983AB</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">163,864</FONT></P></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">-</FONT></P></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">-</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">-</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">(152)</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">69,324</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">-</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">(5,092)</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">(103,482)</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">5,645</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">561</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">538</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">131,206</FONT></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 6pt"><I>TOTAL
    IN FOREIGN CURRENCY</I></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">6,358,798</FONT></P></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">(2,807,371)</FONT></P></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">-</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">34,215</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">(2,248)</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">2,409,637</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">65,167</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">(204,814)</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">(2,316,066)</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">140,702</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">40,310</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">1,998</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><FONT STYLE="font-size: 6pt">3,720,328</FONT></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 6pt"><I>Total</I></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double"><FONT STYLE="font-size: 6pt">13,244,709</FONT></P></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double"><FONT STYLE="font-size: 6pt">-</FONT></P></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double"><FONT STYLE="font-size: 6pt">26,670</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double"><FONT STYLE="font-size: 6pt">2,798,374</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double"><FONT STYLE="font-size: 6pt">(51,201)</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double"><FONT STYLE="font-size: 6pt">2,437,854</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double"><FONT STYLE="font-size: 6pt">65,167</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double"><FONT STYLE="font-size: 6pt">(562,489)</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double"><FONT STYLE="font-size: 6pt">(3,150,780)</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double"><FONT STYLE="font-size: 6pt">440,681</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double"><FONT STYLE="font-size: 6pt">122,631</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double"><FONT STYLE="font-size: 6pt">8,795</FONT></P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt"><P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double"><FONT STYLE="font-size: 6pt">15,380,411</FONT></P></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0"><FONT STYLE="letter-spacing: -0.25pt"><B>&nbsp;</B></FONT></P>


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    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 85%"><P STYLE="text-align: left; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">ITR - Quarterly Information Form - 9/30/2021 - CIA SANEAMENTO BASICO EST SAO PAULO</P></TD><TD STYLE="text-align: center; width: 15%"><P STYLE="text-align: right; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">Version : 1</P></TD></TR></TABLE><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B></B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B>Notes to the Quarterly Information</B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 63.8pt"><FONT STYLE="font-size: 10pt"><B>(a)</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Main events in the nine-month period ended September 30, 2021</B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 21.3pt"><FONT STYLE="font-size: 10pt"><B>(i)</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Debentures</B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">In the first quarter of 2021, the Company amortized the
first installment of series 3 of the 17th issue debentures, totaling R$&nbsp;91.7 million, and the amortization of series 1 of the 22nd
issue debentures, totaling R$&nbsp;100.0 million.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">In the second quarter of 2021, it amortized series 2
of the 21st issue debentures, totaling R$&nbsp;175.0 million.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">In the third quarter of 2021, the Company raised R$ 1.2
billion from the 28th issue of simple and unsecured debentures, not convertible into shares, in up to three series, according to CVM Instruction
476. The funds raised will be used to refinance commitments maturing in 2021 and to recompose the Company&#8217;s cash.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The 28th issue debentures was as follows:</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 11pt Georgia, Times, Serif; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="width: 32%; padding-top: 1pt; padding-right: 5.4pt; padding-left: 5.4pt; line-height: 110%">&nbsp;</TD>
    <TD STYLE="width: 22%; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 1pt 0 0; text-align: center; border-bottom: Black 0.5pt solid">Value</P></TD>
    <TD STYLE="width: 22%; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 1pt 0 0; text-align: center; border-bottom: Black 0.5pt solid">Maturity</P></TD>
    <TD STYLE="width: 24%; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 1pt 0 0; text-align: center; border-bottom: Black 0.5pt solid">Remuneration</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-top: 1pt; padding-right: 5.4pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 10pt; line-height: 110%">Series 1</FONT></TD>
    <TD STYLE="padding-top: 1pt; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center; line-height: 110%"><FONT STYLE="font-size: 10pt; line-height: 110%">R$ 127,800</FONT></TD>
    <TD STYLE="padding-top: 1pt; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center; line-height: 110%"><FONT STYLE="font-size: 10pt; line-height: 110%">07/2024</FONT></TD>
    <TD STYLE="padding-top: 1pt; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center; line-height: 110%"><FONT STYLE="font-size: 10pt; line-height: 110%">CDI + 1.20% p.a.</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-top: 1pt; padding-right: 5.4pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 10pt; line-height: 110%">Series 2</FONT></TD>
    <TD STYLE="padding-top: 1pt; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center; line-height: 110%"><FONT STYLE="font-size: 10pt; line-height: 110%">R$ 888,200</FONT></TD>
    <TD STYLE="padding-top: 1pt; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center; line-height: 110%"><FONT STYLE="font-size: 10pt; line-height: 110%">07/2026</FONT></TD>
    <TD STYLE="padding-top: 1pt; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center; line-height: 110%"><FONT STYLE="font-size: 10pt; line-height: 110%">CDI + 1.44% p.a.</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-top: 1pt; padding-right: 5.4pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 10pt; line-height: 110%">Series 3</FONT></TD>
    <TD STYLE="padding-top: 1pt; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center; line-height: 110%"><FONT STYLE="font-size: 10pt; line-height: 110%">R$ 184,000</FONT></TD>
    <TD STYLE="padding-top: 1pt; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center; line-height: 110%"><FONT STYLE="font-size: 10pt; line-height: 110%">07/2028</FONT></TD>
    <TD STYLE="padding-top: 1pt; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center; line-height: 110%"><FONT STYLE="font-size: 10pt; line-height: 110%">CDI + 1.60% p.a.</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 6pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 67.65pt"></TD><TD STYLE="width: 18pt"><FONT STYLE="font-family: Symbol; font-size: 10pt">&middot;</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">The covenants agreed for the 28th issue debentures are: </FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0 0 6pt 49.65pt; text-align: justify">Calculated every quarter, when disclosing
the quarterly information or annual financial statements:</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0 0 6pt 49.65pt; text-align: justify">- Net debt/adjusted EBITDA lower than or
equal to 3.50;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0 0 6pt 49.65pt; text-align: justify">- Adjusted EBITDA/paid financial expenses
equal to or higher than 1.5;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0 0 6pt 49.65pt; text-align: justify">- Disposal of operating assets, termination
of licenses, loss of concession or loss of the Issuer&#8217;s ability to execute and operate public sanitation services in areas of the
S&atilde;o Paulo State which, individually or jointly during the term of the agreement, lead to a reduction of the Issuer&#8217;s net
sales and/or service revenue of more than twenty- five percent (25%). The above limit will be calculated every quarter, taking into consideration
the Issuer&#8217;s net operating income during the twelve (12) months before the end of each quarter and using the financial information
disclosed by the Issuer.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0 0 6pt 49.65pt; text-align: justify">The failure to comply with the covenants
for at least two consecutive quarters, or for two non-consecutive quarters within twelve months, will cause the early termination of the
agreement (in which case the 30-day cure period does not apply).</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0 0 0 49.65pt; text-align: justify">The contract has a cross acceleration clause,
i.e. the early maturity of any of the Company&#8217;s debts, in an individual or aggregate amount equal to or higher than R$ 166 million,
adjusted by the IPCA inflation index as of the issue date, constitutes a default event and may result in the early maturity of the obligations
arising from the Debentures.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 21.3pt"><FONT STYLE="font-size: 10pt"><B>(ii)</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>IDB</B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">In the first quarter of 2021, the Company raised R$ 17.8
million, referring to contract IDB 4623, and amortized R$ 27.1 million, referring to contract IDB 1212.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">In the second quarter of 2021, the Company raised R$
29.8 million, referring to contract IDB 4623.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">In the third quarter of 2021, the Company raised R$ 30.9
million, referring to contract IDB 4623, and amortized R$ 26.1 million, referring to contract IDB 1212.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 21.3pt"><B>(iii)</B></TD><TD STYLE="text-align: justify"><B>JICA</B></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">In the first quarter of 2021, the Company amortized R$
102.8 million, referring to contracts JICA 15, 18, and 19.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">In the second quarter of 2021, the Company amortized
R$ 8.8 million, referring to contract JICA 17.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>


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    <!-- Field: /Page -->

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">In the third of 2021, the Company amortized R$ 96.5 million,
referring to contracts JICA 15, 18, and 19.</P>

<P STYLE="font: 11pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 46.9pt"></TD><TD STYLE="width: 18pt"><B>(b)</B></TD><TD STYLE="text-align: justify"><B>Lease</B></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The Company has lease agreements signed as Assets Lease.
During the construction period, work costs are capitalized to contract assets and the lease amount is recorded at the same proportion.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">After startup, the lease payment period starts (240 monthly
installments) and the amount is periodically restated by the contracted price index.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The amounts payable for the right of use of assets are
also recorded in this line. See Note 14 (j).</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 46.9pt"></TD><TD STYLE="width: 18pt"><FONT STYLE="font-size: 10pt"><B>(c)</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Covenants</B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The table below shows the most restrictive covenants
as of September 30, 2021.</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Georgia, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="width: 65%; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="width: 35%; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.5pt solid"><B>Covenants</B></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt"><FONT STYLE="font-size: 9pt">Adjusted EBITDA / Adjusted Financial Expenses</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Equal to or higher than 2.80</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt"><FONT STYLE="font-size: 9pt">EBITDA / Financial Expenses Paid</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Equal to or higher than 2.35</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt"><FONT STYLE="font-size: 9pt">Adjusted Net Debt / Adjusted EBITDA</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Equal to or lower than 3.80</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt"><FONT STYLE="font-size: 9pt">Net Debt / Adjusted EBITDA</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Equal to or lower than 3.50</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt"><FONT STYLE="font-size: 9pt">Total Adjusted Debt / Adjusted EBITDA</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Lower than 3.65</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt"><FONT STYLE="font-size: 9pt">Other Onerous Debt <SUP>(1)</SUP> / Adjusted EBITDA</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Equal to or lower than 1.30</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt"><FONT STYLE="font-size: 9pt">Adjusted Current Liquidity</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Higher than 1.00</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD COLSPAN="2" STYLE="padding-top: 6pt; padding-bottom: 1pt; line-height: 110%"><FONT STYLE="font-size: 8pt; line-height: 110%">(1) The contractual definition of &#8220;Other Onerous Debts&#8221; corresponds to the sum of pension plan obligations and healthcare plan, installment payments of tax debts, and installments payments of debts with the electricity supplier.</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">As of September 30, 2021, and December 31, 2020, the
Company met the requirements set forth by its borrowings and financing agreements.</P>


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    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 85%"><P STYLE="text-align: left; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">ITR - Quarterly Information Form - 9/30/2021 - CIA SANEAMENTO BASICO EST SAO PAULO</P></TD><TD STYLE="text-align: center; width: 15%"><P STYLE="text-align: right; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">Version : 1</P></TD></TR></TABLE><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B></B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B>Notes to the Quarterly Information</B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 11pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 46.9pt"></TD><TD STYLE="width: 18pt"><B>(d)</B></TD><TD STYLE="text-align: justify"><B>Borrowings and financing Credit limited</B></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Georgia, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="width: 68%; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Agent</B></P></TD>
    <TD STYLE="width: 3%; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: center; line-height: 110%">&nbsp;</TD>
    <TD STYLE="width: 29%; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>September 30,
    2021</B></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: center; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: center; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: center; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(in millions of Brazilian reais (*))</FONT></TD></TR>
  <TR>
    <TD STYLE="vertical-align: bottom; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Brazilian Federal Savings Bank</FONT></TD>
    <TD STYLE="vertical-align: top; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">1,387</FONT></TD></TR>
  <TR>
    <TD STYLE="vertical-align: bottom; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Brazilian Development Bank (BNDES) </FONT></TD>
    <TD STYLE="vertical-align: top; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">455</FONT></TD></TR>
  <TR>
    <TD STYLE="vertical-align: bottom; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Japan International Cooperation Agency (JICA)</FONT></TD>
    <TD STYLE="vertical-align: top; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">66</FONT></TD></TR>
  <TR>
    <TD STYLE="vertical-align: bottom; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Inter-American Development Bank (IDB)</FONT></TD>
    <TD STYLE="vertical-align: top; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">1,496</FONT></TD></TR>
  <TR>
    <TD STYLE="vertical-align: bottom; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">International Bank for Reconstruction and Development (IBRD) </FONT></TD>
    <TD STYLE="vertical-align: top; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">1,356</FONT></TD></TR>
  <TR>
    <TD STYLE="vertical-align: bottom; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Other</FONT></TD>
    <TD STYLE="vertical-align: top; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">16</P></TD></TR>
  <TR>
    <TD STYLE="vertical-align: bottom; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">TOTAL</FONT></TD>
    <TD STYLE="vertical-align: top; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">4,776</P></TD></TR>
  </TABLE>
<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">(*) Brazilian Central Bank&#8217;s exchange rate as of
September 30, 2021 (US$ 1.00 = R$ 5.4394; &yen; 1.00 = R$ 0.04878).</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">Financing resources contracted have specific purposes
and are released for the execution of their respective investments, according to the progress of the works.</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 9.5pt"><B>17</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Taxes and contributions</B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 10pt"><B>(a)</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Current assets</B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Georgia, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; width: 44%; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: center; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 28%; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>September 30,
    2021</B></P></TD>
    <TD STYLE="padding-right: 5pt; width: 28%; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>December 31,
    2020</B></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%"><B>Recoverable taxes</B></FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Income tax and social contribution</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">28,771</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">-</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Withheld income tax (IRRF) on financial investments</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">11,838</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">4,391</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Other federal taxes</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">3,247</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">18,281</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Total</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">43,856</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">22,672</P></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><B>(b)</B></TD><TD STYLE="text-align: justify"><B>Current liabilities</B></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify"><B>&nbsp;</B></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Georgia, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; width: 44%; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: center; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 28%; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>September 30,
    2021</B></P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 28%; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>December 31,
    2020</B></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%"><B>Taxes and contributions payable</B></FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Income tax and social contribution</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">60,231</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">69,041</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Cofins and Pasep</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">118,756</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">93,601</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">INSS (social security contribution)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">38,712</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">37,599</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">IRRF (withholding income tax)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">5,297</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">21,287</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Other</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">39,245</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">45,291</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Total</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">262,241</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">266,819</P></TD></TR>
  </TABLE>
<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>


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    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 85%"><P STYLE="text-align: left; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">ITR - Quarterly Information Form - 9/30/2021 - CIA SANEAMENTO BASICO EST SAO PAULO</P></TD><TD STYLE="text-align: center; width: 15%"><P STYLE="text-align: right; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">Version : 1</P></TD></TR></TABLE><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B></B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B>Notes to the Quarterly Information</B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt">&nbsp;</P></DIV>
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<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 11pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 9.5pt"><B>18</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Deferred taxes and contributions</B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 10pt"><B>(a)</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Statement of financial position details</B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0; text-align: justify"><B>&nbsp;</B></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Georgia, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; width: 52%; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 24%; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>September 30, 2021</B></P></TD>
    <TD STYLE="padding-right: 5pt; width: 24%; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>December 31, 2020</B></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify"><FONT STYLE="font-size: 9pt"><B>Deferred tax assets </B></FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; padding-left: 5pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify"><FONT STYLE="font-size: 9pt">Provisions</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; text-indent: -2.85pt; padding-left: 5pt"><FONT STYLE="font-size: 9pt">477,319</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; text-indent: -2.85pt; padding-left: 5pt"><FONT STYLE="font-size: 9pt">436,445</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify"><FONT STYLE="font-size: 9pt">Pension plan obligations - G1</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 9pt">151,519</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 9pt">154,498</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify"><FONT STYLE="font-size: 9pt">Donations of underlying assets on concession agreements</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 9pt">48,130</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 9pt">50,142</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify"><FONT STYLE="font-size: 9pt">Allowance for doubtful accounts</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 9pt">166,959</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 9pt">155,719</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify"><FONT STYLE="font-size: 9pt">Other</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">121,737</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">134,932</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify"><FONT STYLE="font-size: 9pt">Total deferred tax asset</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">965,664</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">931,736</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: justify; padding-left: 5pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify"><FONT STYLE="font-size: 9pt"><B>Deferred tax liabilities</B></FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: justify; padding-left: 5pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify"><FONT STYLE="font-size: 9pt">Temporary difference on concession of intangible asset</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 9pt">(376,175)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 9pt">(388,675)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify"><FONT STYLE="font-size: 9pt">Capitalization of borrowing costs</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 9pt">(390,867)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 9pt">(390,211)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify"><FONT STYLE="font-size: 9pt">Profit on supply to government entities</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 9pt">(353,947)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 9pt">(356,513)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify"><FONT STYLE="font-size: 9pt">Actuarial gain &#8211; G1 Plan </FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 9pt">(48,979)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 9pt">(48,979)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify"><FONT STYLE="font-size: 9pt">Construction margin</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 9pt">(46,770)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 9pt">(48,843)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify"><FONT STYLE="font-size: 9pt">Borrowing costs</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(16,585)</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(19,231)</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify"><FONT STYLE="font-size: 9pt">Total deferred tax liabilities</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(1,233,323)</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(1,252,452)</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; padding-left: 5pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify"><FONT STYLE="font-size: 9pt">Deferred tax liability, net</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">(267,659)</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">(320,716)</P></TD></TR>
  </TABLE>
<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>


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    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 85%"><P STYLE="text-align: left; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">ITR - Quarterly Information Form - 9/30/2021 - CIA SANEAMENTO BASICO EST SAO PAULO</P></TD><TD STYLE="text-align: center; width: 15%"><P STYLE="text-align: right; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">Version : 1</P></TD></TR></TABLE><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B></B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B>Notes to the Quarterly Information</B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt">&nbsp;</P></DIV>
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<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 11pt Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><B>(b)</B></TD><TD STYLE="text-align: justify"><B>Changes</B></TD></TR></TABLE>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Georgia, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="width: 49%; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%"><B>Deferred tax assets</B></FONT></TD>
    <TD STYLE="width: 17%; padding-right: 5.4pt; padding-left: 5.4pt">
<DIV STYLE="margin-right: 2.85pt; margin-left: 2.85pt; padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>December 31,</B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>2020</B></P>
</DIV></TD>
    <TD STYLE="width: 17%; padding-right: 5.4pt; padding-left: 5.4pt">
<DIV STYLE="margin-right: 2.85pt; margin-left: 2.85pt; padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>Net</B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>change</B></P>
</DIV></TD>
    <TD STYLE="width: 17%; padding-right: 5.4pt; padding-left: 5.4pt">
<DIV STYLE="margin-right: 2.85pt; margin-left: 2.85pt; padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>September 30,</B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>2021</B></P>
</DIV></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-bottom: 1pt; padding-left: 2.85pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Provisions</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">436,445</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">40,874</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%; text-indent: -2.85pt"><FONT STYLE="font-size: 9pt; line-height: 110%">477,319</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-bottom: 1pt; padding-left: 2.85pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Pension plan obligations - G1</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">154,498</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(2,979)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">151,519</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-bottom: 1pt; padding-left: 2.85pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Donations of underlying assets on concession agreements</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">50,142</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(2,012)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">48,130</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-bottom: 1pt; padding-left: 2.85pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Allowance for doubtful accounts</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">155,719</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">11,240</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">166,959</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-bottom: 1pt; padding-left: 2.85pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Other</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">134,932</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(13,195)</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">121,737</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Total</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">931,736</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">33,928</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">965,664</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%"><B>Deferred tax liabilities</B></FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-bottom: 1pt; padding-left: 2.85pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Temporary difference on concession of intangible asset</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(388,675)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">12,500</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(376,175)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-bottom: 1pt; padding-left: 2.85pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Capitalization of borrowing costs</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(390,211)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(656)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(390,867)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-bottom: 1pt; padding-left: 2.85pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Profit on supply to government entities</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(356,513)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">2,566</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(353,947)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-bottom: 1pt; padding-left: 2.85pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Actuarial gain &#8211; G1</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(48,979)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">-</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(48,979)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-bottom: 1pt; padding-left: 2.85pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Construction margin</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(48,843)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">2,073</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(46,770)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-bottom: 1pt; padding-left: 2.85pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Borrowing costs</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(19,231)</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">2,646</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(16,585)</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Total</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(1,252,452)</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">19,129</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(1,233,323)</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Deferred tax liability, net</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">(320,716)</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">53,057</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">(267,659)</P></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Georgia, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="width: 49%; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%"><B>Deferred tax assets</B></FONT></TD>
    <TD STYLE="width: 17%; padding-right: 5.4pt; padding-left: 5.4pt">
<DIV STYLE="margin-right: 2.85pt; margin-left: 2.85pt; padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>December 31,</B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center">2019</P>
</DIV></TD>
    <TD STYLE="width: 17%; padding-right: 5.4pt; padding-left: 5.4pt">
<DIV STYLE="margin-right: 2.85pt; margin-left: 2.85pt; padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>Net</B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>change</B></P>
</DIV></TD>
    <TD STYLE="width: 17%; padding-right: 5.4pt; padding-left: 5.4pt">
<DIV STYLE="margin-right: 2.85pt; margin-left: 2.85pt; padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>September 30,</B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>2020</B></P>
</DIV></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-bottom: 1pt; padding-left: 2.85pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Provisions</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">366,673</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(23,946)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%; text-indent: -2.85pt"><FONT STYLE="font-size: 9pt; line-height: 110%">342,727</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-bottom: 1pt; padding-left: 2.85pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Pension plan obligations - G1</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">157,998</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(2,940)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">155,058</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-bottom: 1pt; padding-left: 2.85pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Donations of underlying assets on concession agreements</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">51,818</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(1,003)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">50,815</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-bottom: 1pt; padding-left: 2.85pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Allowance for doubtful accounts</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">145,622</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">5,695</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">151,317</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-bottom: 1pt; padding-left: 2.85pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Other</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">183,147</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(31,419)</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">151,728</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Total</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">905,258</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(53,613)</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">851,645</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%"><B>Deferred tax liabilities</B></FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-bottom: 1pt; padding-left: 2.85pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Temporary difference on concession of intangible asset</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(408,732)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">15,307</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(393,425)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-bottom: 1pt; padding-left: 2.85pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Capitalization of borrowing costs</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(409,236)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">15,083</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(394,153)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-bottom: 1pt; padding-left: 2.85pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Profit on supply to government entities</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(372,289)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">12,584</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(359,705)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-bottom: 1pt; padding-left: 2.85pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Actuarial gain &#8211; G1</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(54,222)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">-</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(54,222)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-bottom: 1pt; padding-left: 2.85pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Construction margin</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(83,399)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">33,865</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(49,534)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-bottom: 1pt; padding-left: 2.85pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Borrowing costs</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(11,376)</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(9,217)</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(20,593)</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Total</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(1,339,254)</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">67,622</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(1,271,632)</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Deferred tax liability, net</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">(433,996)</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">14,009</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">(419,987)</P></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 10pt"><B>(c)</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Reconciliation of the effective tax rate</B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The amounts recorded as income tax and social contribution
expenses in the financial statements are reconciled to the statutory rates, as shown below:</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>


<!-- Field: Page; Sequence: 65 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: right; width: 100%">Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->63<!-- Field: /Sequence --> of 87&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: 85%"><P STYLE="text-align: left; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">ITR - Quarterly Information Form - 9/30/2021 - CIA SANEAMENTO BASICO EST SAO PAULO</P></TD><TD STYLE="text-align: center; width: 15%"><P STYLE="text-align: right; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">Version : 1</P></TD></TR></TABLE><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B></B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B>Notes to the Quarterly Information</B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 11pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Georgia, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; width: 40%; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: center; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; width: 15%; padding-left: 5.4pt">
<DIV STYLE="margin-right: 2.85pt; margin-left: 5.65pt; padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>July to September</B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>2021</B></P>
</DIV></TD>
    <TD STYLE="padding-right: 5.4pt; width: 15%; padding-left: 5.4pt">
<DIV STYLE="margin-right: 2.85pt; margin-left: 5.65pt; padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>January to September</B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>2021</B></P>
</DIV></TD>
    <TD STYLE="padding-right: 5.4pt; width: 15%; padding-left: 5.4pt">
<DIV STYLE="margin-right: 2.85pt; margin-left: 5.65pt; padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>July to </B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>September 2020</B></P>
</DIV></TD>
    <TD STYLE="padding-right: 5.4pt; white-space: nowrap; width: 15%; padding-left: 5.4pt">
<DIV STYLE="margin-right: 2.85pt; margin-left: 5.65pt; padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>January to </B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>September 2020</B></P>
</DIV></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Profit before income taxes</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">706,477</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">2,605,123</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">655,559</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">195,393</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Statutory rate</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">34%</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">34%</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">34%</P></TD>
    <TD STYLE="padding-right: 5.4pt; white-space: nowrap; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">34%</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Estimated expense at the statutory rate</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(240,202)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(885,742)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(222,890)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(66,434)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Benefit of interest on capital</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">-</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">13,874</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">48,009</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Permanent differences</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">&#9;Provision Law 4,819/1958 &#8211; G0 (i)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(5,968)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(17,895)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(10,276)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(30,040)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">&#9;Donations</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(3,708)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(7,383)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(611)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(6,541)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">&#9;Other differences</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">11,932</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">30,464</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(206)</P></TD>
    <TD STYLE="padding-right: 5.4pt; white-space: nowrap; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">1,403</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Income tax and social contribution</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">(237,946)</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">(866,682)</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">(233,983)</P></TD>
    <TD STYLE="padding-right: 5.4pt; white-space: nowrap; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">(53,603)</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Current income tax and social contribution</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(262,037)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(919,739)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(192,985)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(67,612)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Deferred income tax and social contribution</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">24,091</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">53,057</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(40,998)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">14,009</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Effective rate</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">34%</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">33%</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">36%</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">27%</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">(i)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Permanent difference related to the
provision for the actuarial liability. See Note 21 (ii).</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 9.5pt"><B>19</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Provisions</B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 10pt"><B>(a)</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Lawsuits and proceedings that resulted in provisions</B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify"><B>&nbsp;</B></P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 1.5in"><FONT STYLE="font-size: 10pt"><B>(I)</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Statement of financial position details</B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The Company is a party to several legal claims and administrative
proceedings arising from the normal course of business, including civil, tax, labor, and environmental matters. Management recognizes
provisions consistently with the recognition and measurement criteria established in Note 3.14 to the Annual Financial Statements as of
December 31, 2020. The terms and payment amounts are defined based on the outcome of these lawsuits.</P>


<!-- Field: Page; Sequence: 66 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: right; width: 100%">Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->64<!-- Field: /Sequence --> of 87&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: 85%"><P STYLE="text-align: left; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">ITR - Quarterly Information Form - 9/30/2021 - CIA SANEAMENTO BASICO EST SAO PAULO</P></TD><TD STYLE="text-align: center; width: 15%"><P STYLE="text-align: right; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">Version : 1</P></TD></TR></TABLE><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B></B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B>Notes to the Quarterly Information</B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 11pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Georgia, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; text-align: center; line-height: 110%">&nbsp;</TD>
    <TD COLSPAN="3" STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>September 30,
    2021</B></P></TD>
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; text-align: center; line-height: 110%">&nbsp;</TD>
    <TD COLSPAN="3" STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>December 31,
    2020</B></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; width: 33%">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 2.85pt 1pt 0; text-align: center"><B>&nbsp;</B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 2.85pt 1pt 0; text-align: center"><B>&nbsp;</B></P></TD>
    <TD STYLE="padding-right: 5pt; width: 11%; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Provisions</B></P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 11%; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Escrow deposits</B></P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 11%; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Provisions net
    of deposits</B></P></TD>
    <TD STYLE="width: 1%; padding-right: 2.85pt; padding-bottom: 1pt; text-align: center; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; width: 11%; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Provisions</B></P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 11%; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Escrow deposits</B></P></TD>
    <TD STYLE="padding-right: 5pt; width: 11%; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Provisions net
    of deposits</B></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Customer claims (i)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">&nbsp;164,421</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 9pt">(10,335)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">154,086</FONT></TD>
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">160,705</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 9pt">(10,553)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">150,152</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Supplier claims (ii)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">&nbsp;419,932 </FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">(119)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">419,813</FONT></TD>
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">410,734</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">(358)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">410,376</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Other civil claims (iii)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">&nbsp;91,112</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">(2,530)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">88,582</FONT></TD>
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">86,083</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">(2,505)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">83,578</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Tax claims (iv)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">70,705</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">(15,125)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">55,580</FONT></TD>
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">59,678</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">(2,410)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">57,268</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Labor claims (v)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">355,388</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">(16,589)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">338,799</FONT></TD>
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">316,880</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">(15,503)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">301,377</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Environmental claims (vi)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">302,322</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(33)</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">302,289</P></TD>
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">249,582</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(31)</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">249,551</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Total</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">1,403,880</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">(44,731)</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">1,359,149</P></TD>
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">1,283,662</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">(31,360)</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">1,252,302</P></TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 2.85pt; padding-bottom: 1pt; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; vertical-align: bottom; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; vertical-align: bottom; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; vertical-align: bottom; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Current</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">801,055</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">-</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">801,055</FONT></TD>
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">760,209</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">-</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">760,209</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Noncurrent</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">602,825</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">(44,731)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">558,094</FONT></TD>
    <TD STYLE="padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">523,453</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">(31,360)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">492,093</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 1.5in"><FONT STYLE="font-size: 10pt"><B>(II)</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Changes</B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify"><B>&nbsp;</B></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Georgia, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="width: 29%; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: center; line-height: 110%">&nbsp;</TD>
    <TD STYLE="width: 12%; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>December 31,
    2020</B></P></TD>
    <TD STYLE="width: 12%; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Additional provisions</B></P></TD>
    <TD STYLE="width: 12%; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Interest and
    inflation adjustment</B></P></TD>
    <TD STYLE="width: 11%; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Use of the accrual</B></P></TD>
    <TD STYLE="width: 12%; padding-right: 5.4pt; padding-left: 5.4pt">
<DIV STYLE="padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>Amounts not used</B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>(reversal)</B></P>
</DIV></TD>
    <TD STYLE="width: 12%; padding-right: 5.4pt; padding-left: 5.4pt">
<DIV STYLE="padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>September 30,</B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>2021</B></P>
</DIV></TD></TR>
  <TR>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Customer claims (i)</FONT></TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">160,705</FONT></TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">25,425</FONT></TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">19,113</FONT></TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(20,608)</FONT></TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(20,214)</FONT></TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">164,421</FONT></TD></TR>
  <TR>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Supplier claims (ii)</FONT></TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">410,734</FONT></TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">44,885</FONT></TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">46,658</FONT></TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(39,572)</FONT></TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(42,773)</FONT></TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">419,932</FONT></TD></TR>
  <TR>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Other civil claims (iii)</FONT></TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">86,083</FONT></TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">6,946</FONT></TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">8,440</FONT></TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(2,987)</FONT></TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(7,370)</FONT></TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">91,112</FONT></TD></TR>
  <TR>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Tax claims (iv)</FONT></TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">59,678</FONT></TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">6,329</FONT></TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">5,777</FONT></TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(8)</FONT></TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(1,071)</FONT></TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">70,705</FONT></TD></TR>
  <TR>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Labor claims (v)</FONT></TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">316,880</FONT></TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">75,624</FONT></TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">26,525</FONT></TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(36,664)</FONT></TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(26,977)</FONT></TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">355,388</FONT></TD></TR>
  <TR>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Environmental claims (vi)</FONT></TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">249,582</P></TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">28,189</P></TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">33,987</P></TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">-</P></TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(9,436)</P></TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">302,322</P></TD></TR>
  <TR>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Subtotal</FONT></TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">1,283,662</FONT></TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">187,398</FONT></TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">140,500</FONT></TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(99,839)</FONT></TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(107,841)</FONT></TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">1,403,880</FONT></TD></TR>
  <TR>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Escrow deposits</FONT></TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(31,360)</P></TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(15,908)</P></TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(3,512)</P></TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">4,073</P></TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">1,976</P></TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(44,731)</P></TD></TR>
  <TR>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Total</FONT></TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">1,252,302</P></TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">171,490</P></TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">136,988</P></TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">(95,766)</P></TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">(105,865)</P></TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">1,359,149</P></TD></TR>
  </TABLE>
<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify"><B>&nbsp;</B></P>


<!-- Field: Page; Sequence: 67 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: right; width: 100%">Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->65<!-- Field: /Sequence --> of 87&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: 85%"><P STYLE="text-align: left; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">ITR - Quarterly Information Form - 9/30/2021 - CIA SANEAMENTO BASICO EST SAO PAULO</P></TD><TD STYLE="text-align: center; width: 15%"><P STYLE="text-align: right; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">Version : 1</P></TD></TR></TABLE><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B></B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B>Notes to the Quarterly Information</B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0"><B>&nbsp;</B></P>

<P STYLE="font: 11pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Georgia, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="width: 29%; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: center; line-height: 110%">&nbsp;</TD>
    <TD STYLE="width: 12%; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>December 31,
    2019</B></P></TD>
    <TD STYLE="width: 12%; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Additional provisions</B></P></TD>
    <TD STYLE="width: 12%; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Interest and
    inflation adjustment</B></P></TD>
    <TD STYLE="width: 11%; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Use of the accrual</B></P></TD>
    <TD STYLE="width: 12%; padding-right: 5.4pt; padding-left: 5.4pt">
<DIV STYLE="padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>Amounts not used</B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>(reversal)</B></P>
</DIV></TD>
    <TD STYLE="width: 12%; padding-right: 5.4pt; padding-left: 5.4pt">
<DIV STYLE="padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>September 30,</B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>2020</B></P>
</DIV></TD></TR>
  <TR>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Customer claims (i)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">253,665</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">12,220</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">13,177</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(74,745)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(45,083)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">159,234</FONT></TD></TR>
  <TR>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Supplier claims (ii)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">153,654</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">84,916</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">9,151</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(66,335)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(20,666)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">160,720</FONT></TD></TR>
  <TR>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Other civil claims (iii)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">93,910</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">12,174</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">7,627</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(19,259)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(10,096)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">84,356</FONT></TD></TR>
  <TR>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Tax claims (iv)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">59,143</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">3,447</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">1,321</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(76)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(2,116)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">61,719</FONT></TD></TR>
  <TR>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Labor claims (v)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">325,129</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">41,632</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">26,697</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(51,844)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(34,443)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">307,171</FONT></TD></TR>
  <TR>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Environmental claims (vi)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: right; border-bottom: Black 0.5pt solid">192,950</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: right; border-bottom: Black 0.5pt solid">26,495</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: right; border-bottom: Black 0.5pt solid">17,095</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: right; border-bottom: Black 0.5pt solid">-</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: right; border-bottom: Black 0.5pt solid">(1,718)</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: right; border-bottom: Black 0.5pt solid">234,822</P></TD></TR>
  <TR>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Subtotal</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">1,078,451</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">180,884</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">75,068</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(212,259)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(114,122)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">1,008,022</FONT></TD></TR>
  <TR>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Escrow deposits</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: right; border-bottom: Black 0.5pt solid">(42,643)</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: right; border-bottom: Black 0.5pt solid">(11,715)</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: right; border-bottom: Black 0.5pt solid">(1,091)</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: right; border-bottom: Black 0.5pt solid">16,023</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: right; border-bottom: Black 0.5pt solid">7,724</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: right; border-bottom: Black 0.5pt solid">(31,702)</P></TD></TR>
  <TR>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Total</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: right; border-bottom: Black 1.5pt double">1,035,808</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: right; border-bottom: Black 1.5pt double">169,169</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: right; border-bottom: Black 1.5pt double">73,977</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: right; border-bottom: Black 1.5pt double">(196,236)</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: right; border-bottom: Black 1.5pt double">(106,398)</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: right; border-bottom: Black 1.5pt double">976,320</P></TD></TR>
  </TABLE>
<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify"><B>&nbsp;</B></P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><B>(b)</B></TD><TD STYLE="text-align: justify"><B>Lawsuits deemed as contingent liabilities</B></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The Company is a party to lawsuits and administrative
proceedings relating to environmental, tax, civil, and labor claims, which are assessed as contingent liabilities in the financial statements,
since it either does not expect outflows to be required or the amount of the obligations cannot be reliably measured. Contingent liabilities,
net of deposits, are represented as follows:</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Georgia, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; width: 46%; padding-bottom: 1pt; text-align: center; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 27%; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.75pt solid"><B>September 30,
    2021</B></P></TD>
    <TD STYLE="padding-right: 5pt; width: 27%; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.75pt solid"><B>December 31,
    2020</B></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Customer claims (i)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">161,777</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">110,508</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Supplier claims (ii)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">1,543,098</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">1,350,308</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Other civil claims (iii)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">810,442</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">758,800</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Tax claims (iv)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">1,491,165</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">1,253,636</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Labor claims (v)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">1,091,257</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; text-align: right; line-height: 110%; padding-left: 5pt"><FONT STYLE="font-size: 9pt; line-height: 110%">1,005,648</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Environmental claims (vi)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.75pt solid">3,061,264</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.75pt solid">5,981,837</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Total</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 2.25pt double">8,159,003</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 2.25pt double">10,460,737</P></TD></TR>
  </TABLE>
<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 10pt"><B>(c)</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Explanation on the nature of main classes of lawsuits</B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0pt"></TD><TD STYLE="width: 35.45pt"><FONT STYLE="font-size: 10pt"><B>(i)</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Customer claims </B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">Approximately 790 lawsuits (690 as of December 31, 2020)
were filed by commercial customers, who claim that their tariffs should correspond to those of the other customer categories, and 320
lawsuits (310 as of December 31, 2020) in which customers claimed a reduction in the sewage tariff due to losses in the system, consequently
requesting the refund of amounts charged by the Company, and 40 lawsuits (30 as of December 31, 2020) in which customers plead the reduction
in tariff under the category &#8220;Social Welfare Entity&#8221;.</P>


<!-- Field: Page; Sequence: 68 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: right; width: 100%">Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->66<!-- Field: /Sequence --> of 87&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: 85%"><P STYLE="text-align: left; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">ITR - Quarterly Information Form - 9/30/2021 - CIA SANEAMENTO BASICO EST SAO PAULO</P></TD><TD STYLE="text-align: center; width: 15%"><P STYLE="text-align: right; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">Version : 1</P></TD></TR></TABLE><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B></B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B>Notes to the Quarterly Information</B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 11pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0pt"></TD><TD STYLE="width: 35.45pt"><FONT STYLE="font-size: 10pt"><B>(ii)</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Supplier claims</B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">Include lawsuits filed by some suppliers alleging underpayment
of monetary adjustments and economic and financial imbalance of the agreements, and are in progress at different courts.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0pt"></TD><TD STYLE="width: 35.45pt"><B>(iii)</B></TD><TD STYLE="text-align: justify"><B>Other civil claims</B></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">Refer mainly to indemnities for property damage, pain
and suffering, and loss of profits allegedly caused to third parties, such as vehicle accidents, claims, challenges on the methodology
to collect tariffs, among others, filed at different court levels.</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0pt"></TD><TD STYLE="width: 35.45pt"><FONT STYLE="font-size: 10pt"><B>(iv)</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Tax claims</B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">Tax claims refer mainly to tax collections and fines
in general challenged due to disagreements regarding notification or differences in the interpretation of legislation by the Company's
Management, which were accrued while others were deemed as contingent liabilities.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0pt"></TD><TD STYLE="width: 35.45pt"><FONT STYLE="font-size: 10pt"><B>(v)</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Labor claims</B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify"><B>&nbsp;</B></P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The Company is a party to several labor lawsuits, involving
issues such as overtime, shift schedule, health hazard premium and hazardous duty premium, prior notice, change of function, salary equalization,
service outsourcing, and others, which are at various court levels.</P>

<P STYLE="font: 10pt/115% Georgia, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0pt"></TD><TD STYLE="width: 35.45pt"><FONT STYLE="font-size: 10pt"><B>(vi)</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Environmental claims</B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">These refer to several administrative proceedings and
lawsuits filed by government entities, including Companhia Ambiental do Estado de S&atilde;o Paulo (CETESB) and the Public Prosecution
Office of the S&atilde;o Paulo State, which aim at certain obligations to do and not to do, with provision of fines for non-compliance,
and imposition of compensation for environmental damages allegedly caused by the Company.</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><B>(d)</B></TD><TD STYLE="text-align: justify"><B>Guarantee insurance</B></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">As of May 25, 2021, the Company executed an agreement
effective for one year for the issue of policies under several types of guarantee insurance. The limit that can be used for guarantee
insurance for escrow deposit is R$ 600 million. The guarantee insurance for escrow deposit is used in legal claims, where instead of immediately
disbursing cash, the Company uses the guarantee provided by the insurance until the end of these proceedings, limited to up to five years.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">From July to September 2021, the Company used R$ 74 as
guarantee insurance for escrow deposit (R$ 44,000 from July to September 2020).</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">Until September 2021, The Company used R$ 3,967,00 in
guarantees for escrow deposit of the agreement in force.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>


<!-- Field: Page; Sequence: 69 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: right; width: 100%">Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->67<!-- Field: /Sequence --> of 87&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: 85%"><P STYLE="text-align: left; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">ITR - Quarterly Information Form - 9/30/2021 - CIA SANEAMENTO BASICO EST SAO PAULO</P></TD><TD STYLE="text-align: center; width: 15%"><P STYLE="text-align: right; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">Version : 1</P></TD></TR></TABLE><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B></B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B>Notes to the Quarterly Information</B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 11pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 9.5pt"><B>20</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Labor liabilities and pension plan obligations</B></FONT></TD></TR></TABLE>
<P STYLE="font: 11pt Georgia, Times, Serif; margin: 0"></P>


<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Georgia, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; width: 52%; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; width: 24%; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><B>September 30, 2021</B></P></TD>
    <TD STYLE="white-space: nowrap; width: 24%; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid"><B>December 31, 2020</B></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 9pt">Salaries and payroll charges</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 9pt">34,717</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 9pt">53,107</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 9pt">Provision for vacation</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 9pt">240,092</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 9pt">207,906</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 9pt">Provision for Christmas bonus</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 9pt">77,835</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 9pt">-</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 9pt">Healthcare plan (i)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 9pt">49,300</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 9pt">45,768</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 9pt">Provision for profit sharing (ii)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 9pt">66,522</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 9pt">91,209</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 9pt">Consent Decree (TAC)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 9pt">6,848</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right"><FONT STYLE="font-size: 9pt">8,978</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 9pt">Knowledge Retention Program (PRC)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">1,936</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">3,975</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt"><FONT STYLE="font-size: 9pt">Total</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">477,250</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">410,943</P></TD></TR>
  </TABLE>
<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 21.3pt"><FONT STYLE="font-size: 10pt"><B>(i)</B></FONT></TD><TD><FONT STYLE="font-size: 10pt"><B>Healthcare plan</B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">Benefits are paid after the event, free of choice, and
are sponsored by the contributions of SABESP and the employees. In the third quarter of 2021, the Company contributed 10.2%, on average,
of gross payroll, totaling R$ 71,601 (7.8% in the third quarter of 2020, totaling R$ 55,229).</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 21.3pt"><FONT STYLE="font-size: 10pt"><B>(ii)</B></FONT></TD><TD><FONT STYLE="font-size: 10pt"><B>Profit sharing</B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The profit-sharing program was implemented according
to an agreement with the labor union. Payment corresponds to up to one month&#8217;s salary for each employee, depending on the performance
of goals reached from January to December, and should be paid in the subsequent year.</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 9.5pt"><B>21</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Pension plan obligations</B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The Company has Post-Employment Benefit Plans in the
following modalities: Defined Benefit (BD) &#8211; G1 (i) and G0 (ii); and Defined Contribution (CD) &#8211; Sabesprev Mais (iii), and
VIVEST (iv). See the reconciliation of expenses with such plans in item (v).</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify"><B><U>Defined benefit plans</U></B></P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify"><B>Summary of pension plan obligations </B></P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Georgia, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; width: 55%; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; width: 15%; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>G1 Plan</B></P></TD>
    <TD STYLE="white-space: nowrap; width: 15%; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>G0 Plan</B></P></TD>
    <TD STYLE="white-space: nowrap; width: 15%; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Total</B></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Pension plan obligations as of December 31, 2020</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(319,053)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(2,549,541)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(2,868,594)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Expenses recognized in 2021</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(17,435)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(118,661)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(136,096)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Payments made in 2021</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">26,623</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">127,276</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">153,899</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Pension plan obligations as of September 30, 2021</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">(309,865)</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">(2,540,926)</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">(2,850,791)</P></TD></TR>
  </TABLE>
<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>


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    <DIV STYLE="margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: right; width: 100%">Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->68<!-- Field: /Sequence --> of 87&nbsp;</TD></TR></TABLE></DIV>
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    <!-- Field: /Page -->

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 11pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Georgia, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; width: 55%; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; width: 15%; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>G1 Plan</B></P></TD>
    <TD STYLE="white-space: nowrap; width: 15%; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>G0 Plan</B></P></TD>
    <TD STYLE="white-space: nowrap; width: 15%; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Total</B></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Pension plan obligations as of December 31, 2019</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(314,677)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(3,046,255)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(3,360,932)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Expenses recognized in 2020</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(18,723)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(154,697)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(173,420)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Payments made in 2020</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">27,953</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">126,434</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">154,387</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-bottom: 1pt; padding-left: 3.5pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Pension plan obligations as of September 30, 2020</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">(305,447)</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">(3,074,518)</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">(3,379,965)</P></TD></TR>
  </TABLE>
<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 21.3pt"><FONT STYLE="font-size: 10pt"><B>(i)</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>G1 Plan </B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">Managed by SABESPREV, the defined benefit plan (&#8220;G1
Plan&#8221;) receives similar contributions established in a plan of subsidy of actuarial study of SABESPREV, as follows:</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 3pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 3.45pt"></TD><TD STYLE="width: 17.85pt"><FONT STYLE="font-family: Symbol; font-size: 10pt">&middot;</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">0.99% of the portion of the salary of participation up to 20 salaries; and</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 3pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 3.45pt"></TD><TD STYLE="width: 17.85pt"><FONT STYLE="font-family: Symbol; font-size: 10pt">&middot;</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">8.39% of the surplus, if any, of the portion of the salary of participation
over 20 salaries.</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 21.3pt"><FONT STYLE="font-size: 10pt"><B>(ii)</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>G0 Plan </B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">According to State Law 4,819/1958, employees who started
providing services before May 1974 and retired as an employee of the Company acquired a legal right to receive supplemental pension payments,
which rights are referred to as &#8220;G0 Plan&quot;. The Company pays supplemental retirement and pension amounts on behalf of the S&atilde;o
Paulo State and seeks reimbursements of such amounts, which are recorded as accounts receivable from shareholders, limited to the amounts
considered virtually certain to be reimbursed by the S&atilde;o Paulo State.</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 21.3pt"><B>(iii)</B></TD><TD STYLE="text-align: justify"><B>Sabesprev Mais Plan </B></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">Since December 31, 2019, the &#8220;Sabesprev Mais&#8221;
Defined Contribution Plan, managed by SABESPREV, has not been accepting any new adhesions. Since January 1, 2020, new employees have had
the option to join Funda&ccedil;&atilde;o CESP&#8217;s Defined Contribution Plan (VIVEST), as well as those who did not join the Sabesprev
Mais Plan.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The sponsor's contributions correspond to the result
obtained by applying a percentage of 100% on the basic contribution made by the participant.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 21.3pt"><FONT STYLE="font-size: 10pt"><B>(iv)</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>VIVEST Plan</B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">Defined Contribution Plan administered by VIVEST. The
sponsor's contributions correspond to the result obtained by applying a percentage of 100% on the basic contribution made by the participant.</P>


<!-- Field: Page; Sequence: 71 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: right; width: 100%">Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->69<!-- Field: /Sequence --> of 87&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: 85%"><P STYLE="text-align: left; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">ITR - Quarterly Information Form - 9/30/2021 - CIA SANEAMENTO BASICO EST SAO PAULO</P></TD><TD STYLE="text-align: center; width: 15%"><P STYLE="text-align: right; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">Version : 1</P></TD></TR></TABLE><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B></B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B>Notes to the Quarterly Information</B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 11pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 21.3pt"><FONT STYLE="font-size: 10pt"><B>(v)</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Reconciliation of expenditures with pension plan obligations </B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 11pt Georgia, Times, Serif; border-collapse: collapse">
  <TR>
    <TD STYLE="vertical-align: top; width: 36%; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: justify; line-height: 110%">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; width: 16%; padding-right: 5.4pt; padding-left: 5.4pt">
<DIV STYLE="margin-right: 2.85pt; margin-left: 2.85pt; padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>July to September</B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>2021</B></P>
</DIV></TD>
    <TD STYLE="vertical-align: bottom; width: 16%; padding-right: 5.4pt; padding-left: 5.4pt">
<DIV STYLE="margin-right: 2.85pt; margin-left: 2.85pt; padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>January to September</B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>2021</B></P>
</DIV></TD>
    <TD STYLE="vertical-align: bottom; width: 16%; padding-right: 5.4pt; padding-left: 5.4pt">
<DIV STYLE="margin-right: 2.85pt; margin-left: 2.85pt; padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>July to </B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>September 2020</B></P>
</DIV></TD>
    <TD STYLE="vertical-align: bottom; width: 16%; padding-right: 5.4pt; padding-left: 5.4pt">
<DIV STYLE="margin-right: 2.85pt; margin-left: 2.85pt; padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>January to </B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>September 2020</B></P>
</DIV></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: justify; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: justify; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: justify; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: justify; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: justify; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">G1 Plan (i)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">5,812</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">17,435</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">6,241</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">18,723</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">G0 Plan (ii)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">39,554</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">118,661</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">51,566</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">154,697</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Sabesprev Mais Plan (iii)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">5,722</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">16,612</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">5,446</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">16,340</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">VIVEST Plan (iv)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">44</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">102</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">21</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">36</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Subtotal</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">51,132</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">152,810</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">63,274</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">189,796</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Capitalized</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(1,092)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(3,150)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(1,202)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(3,764)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Reimbursement of additional retirement and pension benefits paid (G0)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(22,001)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(66,028)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(21,342)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(66,345)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Other</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">1,256</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">3,728</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">1,197</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">4,605</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-bottom: 1pt; padding-left: 5.4pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Pension plan obligations (Note 27)</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">29,295</P></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">87,360</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">41,927</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">124,292</P></TD></TR>
  </TABLE>
<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 9.5pt"><B>22</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Services payable</B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">This line records the balances payable, mainly from services
received from third parties, such as the supply of electric power, reading of hydrometers and delivery of water and sewage bills, cleaning,
surveillance and security services, collection, legal counsel services, audit, marketing, and advertising and consulting services, among
others. This line also includes the amounts payable related to the transfer of 7.5% of revenue from the S&atilde;o Paulo municipal government
to the Municipal Fund for Environmental Sanitation and Infrastructure. The balances as of September 30, 2021, and December 31, 2020, were
R$ 529,210 and R$ 453,750, respectively.</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 9.5pt"><B>23</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Equity </B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify"><B>&nbsp;</B></P>

<P STYLE="font: 11pt/110% Georgia, Times, Serif; margin: 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-size: 10pt"><B>(a)</B></FONT><B><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;&nbsp;&nbsp;
</FONT><FONT STYLE="font-size: 10pt">Share capital</FONT></B></P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">As of September 30, 2021, and December 31, 2020, the
authorized, subscribed, and paid-in capital, totaling R$ 15,000,000, was composed of 683,509,869 registered, book-entry common shares
with no par value, as follows:</P>


<!-- Field: Page; Sequence: 72 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: right; width: 100%">Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->70<!-- Field: /Sequence --> of 87&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: 85%"><P STYLE="text-align: left; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">ITR - Quarterly Information Form - 9/30/2021 - CIA SANEAMENTO BASICO EST SAO PAULO</P></TD><TD STYLE="text-align: center; width: 15%"><P STYLE="text-align: right; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">Version : 1</P></TD></TR></TABLE><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B></B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B>Notes to the Quarterly Information</B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 11pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Georgia, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-top: 4.8pt; padding-right: 8.5pt; padding-bottom: 2.4pt; text-align: center">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 4.8pt 0 2.4pt; text-align: center; border-bottom: Black 0.5pt solid"><B>September 30,
    2021</B></P></TD>
    <TD COLSPAN="2" STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 4.8pt 0 2.4pt; text-align: center; border-bottom: Black 0.5pt solid"><B>December 31,
    2020</B></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; width: 52%; padding-top: 4.8pt; padding-right: 8.5pt; padding-bottom: 2.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 15%; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 4.8pt 0 2.4pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Number of shares</B></P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 9%; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 4.8pt 0 2.4pt; text-align: center; border-bottom: Black 0.5pt solid"><B>%</B></P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 15%; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 4.8pt 0 2.4pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Number of shares</B></P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 9%; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 4.8pt 0 2.4pt; text-align: center; border-bottom: Black 0.5pt solid"><B>%</B></P></TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-top: 4.8pt; padding-right: 8.5pt; padding-bottom: 2.4pt; text-align: justify"><FONT STYLE="font-size: 9pt">&nbsp;S&atilde;o Paulo State </FONT></TD>
    <TD STYLE="padding: 4.8pt 5pt 2.4pt; white-space: nowrap; vertical-align: bottom; text-align: right"><FONT STYLE="font-size: 9pt">343,506,664</FONT></TD>
    <TD STYLE="padding: 4.8pt 5pt 2.4pt; white-space: nowrap; vertical-align: top; text-align: right"><FONT STYLE="font-size: 9pt">50.3</FONT></TD>
    <TD STYLE="padding: 4.8pt 5pt 2.4pt; white-space: nowrap; vertical-align: bottom; text-align: right"><FONT STYLE="font-size: 9pt">343,507,729</FONT></TD>
    <TD STYLE="padding: 4.8pt 5pt 2.4pt; white-space: nowrap; vertical-align: bottom; text-align: right"><FONT STYLE="font-size: 9pt">50.3</FONT></TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-top: 4.8pt; padding-right: 8.5pt; padding-bottom: 2.4pt; text-align: justify"><FONT STYLE="font-size: 9pt">&nbsp;Other shareholders </FONT></TD>
    <TD STYLE="padding: 4.8pt 5pt 2.4pt; white-space: nowrap; vertical-align: top; text-align: right">&nbsp;</TD>
    <TD STYLE="padding: 4.8pt 5pt 2.4pt; white-space: nowrap; vertical-align: top; text-align: right">&nbsp;</TD>
    <TD STYLE="padding: 4.8pt 5pt 2.4pt; white-space: nowrap; vertical-align: bottom; text-align: right">&nbsp;</TD>
    <TD STYLE="padding: 4.8pt 5pt 2.4pt; white-space: nowrap; vertical-align: bottom; text-align: right">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-top: 4.8pt; padding-right: 8.5pt; padding-bottom: 2.4pt; text-align: justify"><FONT STYLE="font-size: 9pt">&nbsp;&nbsp;&nbsp;In Brazil <SUP>(1)</SUP></FONT></TD>
    <TD STYLE="padding: 4.8pt 5pt 2.4pt; white-space: nowrap; vertical-align: top; text-align: right"><FONT STYLE="font-size: 9pt">237,704,371</FONT></TD>
    <TD STYLE="padding: 4.8pt 5pt 2.4pt; white-space: nowrap; vertical-align: top; text-align: right"><FONT STYLE="font-size: 9pt">34.8</FONT></TD>
    <TD STYLE="padding: 4.8pt 5pt 2.4pt; white-space: nowrap; vertical-align: bottom; text-align: right"><FONT STYLE="font-size: 9pt">254,868,646</FONT></TD>
    <TD STYLE="padding: 4.8pt 5pt 2.4pt; white-space: nowrap; vertical-align: bottom; text-align: right"><FONT STYLE="font-size: 9pt">37.3</FONT></TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-top: 4.8pt; padding-right: 8.5pt; padding-bottom: 2.4pt; text-align: justify"><FONT STYLE="font-size: 9pt">&nbsp;&nbsp;&nbsp;Abroad <SUP>(2) (3)</SUP></FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; vertical-align: top; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 4.8pt 0 2.4pt; text-align: right; border-bottom: Black 0.5pt solid">102,298,834</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; vertical-align: top; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 4.8pt 0 2.4pt; text-align: right; border-bottom: Black 0.5pt solid">14.9</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; vertical-align: bottom; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 4.8pt 0 2.4pt; text-align: right; border-bottom: Black 0.5pt solid">85,133,494</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; vertical-align: bottom; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 4.8pt 0 2.4pt; text-align: right; border-bottom: Black 0.5pt solid">12.4</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-top: 4.8pt; padding-right: 8.5pt; padding-bottom: 2.4pt; text-align: justify">&nbsp;</TD>
    <TD STYLE="padding: 4.8pt 5pt 2.4pt; white-space: nowrap; text-align: right">&nbsp;</TD>
    <TD STYLE="padding: 4.8pt 5pt 2.4pt; white-space: nowrap; text-align: right">&nbsp;</TD>
    <TD STYLE="padding: 4.8pt 5pt 2.4pt; white-space: nowrap; text-align: right">&nbsp;</TD>
    <TD STYLE="padding: 4.8pt 5pt 2.4pt; white-space: nowrap; text-align: right">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-top: 4.8pt; padding-right: 8.5pt; padding-bottom: 2.4pt; text-align: justify"><FONT STYLE="font-size: 9pt">&nbsp;Total</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 4.8pt 0 2.4pt; text-align: right; border-bottom: Black 1.5pt double">683,509,869</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 4.8pt 0 2.4pt; text-align: right; border-bottom: Black 1.5pt double">100.0</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 4.8pt 0 2.4pt; text-align: right; border-bottom: Black 1.5pt double">683,509,869</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 4.8pt 0 2.4pt; text-align: right; border-bottom: Black 1.5pt double">100.0</P></TD></TR>
  </TABLE>
<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 1pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 17pt"><FONT STYLE="font-size: 10pt">(1)</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">As of September 30, 2021, the common shares traded in Brazil were held by
44,934 shareholders. It includes six shares held by Cia Paulista de Parcerias &#8211; CPP, a company controlled by the S&atilde;o Paulo
State.</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 1pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 17pt"><FONT STYLE="font-size: 10pt">(2)</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">Shares traded as American Depositary Receipts (ADR) on the New York Stock
Exchange, through The Bank New York Mellon, the depositary bank of the Company&#8217;s ADRs.</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 1pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 17pt"><FONT STYLE="font-size: 10pt">(3)</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">Each ADR corresponds to 1 share.</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 11pt/110% Georgia, Times, Serif; margin: 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-size: 10pt"><B>(b)</B></FONT><B><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;&nbsp;
</FONT><FONT STYLE="font-size: 10pt">Interest on capital</FONT></B></P>

<P STYLE="font: 10pt/107% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/107% Georgia, Times, Serif; margin: 0; text-align: justify">The Annual Shareholders&#8217; Meeting of April 29, 2021
approved the distribution of dividends as interest on capital totaling R$ 231,163, corresponding to a minimum mandatory dividend of R$
40,806 as additional dividends, totaling R$ 271,969, paid on June 28, 2021.</P>

<P STYLE="font: 10pt/107% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 9.5pt"><B>24</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Earnings per share</B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify"><B>Basic and diluted</B></P>

<P STYLE="font: 10pt/105% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">Basic earnings per share are calculated by dividing the
equity attributable to owners by the weighted average number of outstanding common shares during the year. The Company does not have potentially
dilutive common shares outstanding or debts convertible into common shares. Accordingly, basic and diluted earnings per share are equal.</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Georgia, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; width: 48%; padding-bottom: 2pt; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 13%; padding-left: 5pt">
<DIV STYLE="margin-right: 2.85pt; margin-left: 2.85pt; padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>July to September</B></P>
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 2pt; text-align: center"><B>2021</B></P>
</DIV></TD>
    <TD STYLE="padding-right: 5pt; width: 13%; padding-left: 5pt">
<DIV STYLE="margin-right: 2.85pt; margin-left: 2.85pt; padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>January to September</B></P>
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 2pt; text-align: center"><B>2021</B></P>
</DIV></TD>
    <TD STYLE="padding-right: 5pt; width: 13%; padding-left: 5pt">
<DIV STYLE="margin-right: 2.85pt; margin-left: 2.85pt; padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>July to </B></P>
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 2pt; text-align: center"><B>September 2020</B></P>
</DIV></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 13%; padding-left: 5pt">
<DIV STYLE="margin-right: 2.85pt; margin-left: 2.85pt; padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>January to </B></P>
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 2pt; text-align: center"><B>September 2020</B></P>
</DIV></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 2pt; text-align: justify">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 2pt; text-align: right; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2pt; text-align: right; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2pt; text-align: right; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 2pt; text-align: right; padding-left: 5pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 2pt; text-align: justify"><FONT STYLE="font-size: 9pt">Profit attributable to the Company&#8217;s owners</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 2pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 9pt">468,531</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 9pt">1,738,441</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 9pt">421,576</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 2pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 9pt">141,790</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 2pt; text-align: justify"><FONT STYLE="font-size: 9pt">Weighted average number of common shares issued</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 2pt; text-align: right; border-bottom: Black 0.5pt solid">683,509,869</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 2pt; text-align: right; border-bottom: Black 0.5pt solid">683,509,869</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 2pt; text-align: right; border-bottom: Black 0.5pt solid">683,509,869</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 2pt; text-align: right; border-bottom: Black 0.5pt solid">683,509,869</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 2pt; text-align: justify">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 2pt; text-align: right; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2pt; text-align: right; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2pt; text-align: right; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 2pt; text-align: right; padding-left: 5pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 2pt; text-align: justify"><FONT STYLE="font-size: 9pt">Basic and diluted earnings per share (reais per share)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 2pt; text-align: right; border-bottom: Black 1.5pt double">0.68548</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 2pt; text-align: right; border-bottom: Black 1.5pt double">2.54341</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 2pt; text-align: right; border-bottom: Black 1.5pt double">0.61678</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 2pt; text-align: right; border-bottom: Black 1.5pt double">0.20744</P></TD></TR>
  </TABLE>
<P STYLE="font: 10pt/105% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>


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    <DIV STYLE="margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: right; width: 100%">Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->71<!-- Field: /Sequence --> of 87&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: 85%"><P STYLE="text-align: left; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">ITR - Quarterly Information Form - 9/30/2021 - CIA SANEAMENTO BASICO EST SAO PAULO</P></TD><TD STYLE="text-align: center; width: 15%"><P STYLE="text-align: right; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">Version : 1</P></TD></TR></TABLE><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B></B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B>Notes to the Quarterly Information</B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 11pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 9.5pt"><B>25</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Operating segment information </B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The Company&#8217;s Management, composed of the Board
of Directors and the Executive Board, has determined the operating segment used to make strategic decisions, such as sanitation services.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">Result</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 11pt Georgia, Times, Serif; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt">&nbsp;</TD>
    <TD COLSPAN="3" STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>July to September
    2021</B></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; width: 41%; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 21%; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Sanitation (i)</B></P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 18%; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Reconciliation to
    the income statement (ii)</B></P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 20%; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Balance according
    to the financial statements</B></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt"><FONT STYLE="font-size: 8pt">Gross operating revenue </FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">4,284,925</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">1,186,131</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">5,471,056</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt"><FONT STYLE="font-size: 8pt">Gross sales deductions</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(317,139)</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">-</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(317,139)</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt"><FONT STYLE="font-size: 8pt">Net operating revenue </FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">3,967,786</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">1,186,131</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">5,153,917</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt"><FONT STYLE="font-size: 8pt">Costs, selling, general and administrative expenses</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(2,774,033)</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(1,159,463)</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(3,933,496)</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt"><FONT STYLE="font-size: 8pt">Income from operations before other operating expenses, net and equity accounting </FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">1,193,753</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">26,668</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">1,220,421</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt"><FONT STYLE="font-size: 8pt">Other operating income (expenses), net</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">2,686</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt"><FONT STYLE="font-size: 8pt">Equity accounting</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">3,994</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt"><FONT STYLE="font-size: 8pt">Financial result, net</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(520,624)</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt"><FONT STYLE="font-size: 8pt">Earnings before income tax and social contribution</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">706,477</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt"><FONT STYLE="font-size: 8pt">Depreciation and amortization</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">(564,914)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-bottom: 1pt; text-align: right; padding-left: 5pt"><FONT STYLE="font-size: 8pt">(564,914)</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>


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    <DIV STYLE="margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: right; width: 100%">Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->72<!-- Field: /Sequence --> of 87&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: 85%"><P STYLE="text-align: left; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">ITR - Quarterly Information Form - 9/30/2021 - CIA SANEAMENTO BASICO EST SAO PAULO</P></TD><TD STYLE="text-align: center; width: 15%"><P STYLE="text-align: right; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">Version : 1</P></TD></TR></TABLE><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B></B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B>Notes to the Quarterly Information</B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 11pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 11pt Georgia, Times, Serif; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt">&nbsp;</TD>
    <TD COLSPAN="3" STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>January to September
    2021</B></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; width: 41%; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 21%; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Sanitation (i)</B></P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 18%; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Reconciliation to
    the income statement (ii)</B></P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 20%; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Balance according
    to the financial statements</B></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt"><FONT STYLE="font-size: 8pt">Gross operating revenue </FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 8pt">12,103,359</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 8pt">3,232,339</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 8pt">15,335,698</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt"><FONT STYLE="font-size: 8pt">Gross sales deductions</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(908,445)</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">-</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(908,445)</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt"><FONT STYLE="font-size: 8pt">Net operating revenue </FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">11,194,914</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">3,232,339</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">14,427,253</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt"><FONT STYLE="font-size: 8pt">Costs, selling, general and administrative expenses</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(8,064,955)</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(3,159,667)</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(11,224,622)</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt"><FONT STYLE="font-size: 8pt">Income from operations before other operating expenses, net and equity pickup </FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">3,129,959</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">72,672</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">3,202,631</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt"><FONT STYLE="font-size: 8pt">Other operating income (expenses), net</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 8pt">12,464</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt"><FONT STYLE="font-size: 8pt">Equity accounting</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 8pt">16,209</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt"><FONT STYLE="font-size: 8pt">Financial result, net</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(626,181)</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt"><FONT STYLE="font-size: 8pt">Earnings before income tax and social contribution</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">2,605,123</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt"><FONT STYLE="font-size: 8pt">Depreciation and amortization</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 8pt">(1,660,020)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 8pt">(1,660,020)</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt/107% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>


<!-- Field: Page; Sequence: 75 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: right; width: 100%">Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->73<!-- Field: /Sequence --> of 87&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: 85%"><P STYLE="text-align: left; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">ITR - Quarterly Information Form - 9/30/2021 - CIA SANEAMENTO BASICO EST SAO PAULO</P></TD><TD STYLE="text-align: center; width: 15%"><P STYLE="text-align: right; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">Version : 1</P></TD></TR></TABLE><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B></B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B>Notes to the Quarterly Information</B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 11pt/110% Georgia, Times, Serif; margin: 0 0 12pt 58.15pt; text-align: justify; text-indent: -22.7pt">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 11pt Georgia, Times, Serif; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt">&nbsp;</TD>
    <TD COLSPAN="3" STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>July to September
    2020</B></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; width: 41%; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 21%; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Sanitation (i)</B></P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 18%; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Reconciliation to
    the income statement (ii)</B></P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 20%; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Balance according
    to the financial statements</B></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt"><FONT STYLE="font-size: 8pt">Gross operating revenue </FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 8pt">3,639,105</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 8pt">1,053,432</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 8pt">4,692,537</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt"><FONT STYLE="font-size: 8pt">Gross sales deductions</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(254,057)</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">-</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(254,057)</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt"><FONT STYLE="font-size: 8pt">Net operating revenue </FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">3,385,048</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">1,053,432</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">4,438,480</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt"><FONT STYLE="font-size: 8pt">Costs, selling, general and administrative expenses</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(2,426,500)</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(1,029,748)</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(3,456,248)</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt"><FONT STYLE="font-size: 8pt">Income from operations before other operating expenses, net and equity accounting </FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">958,548</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">23,684</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">982,232</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt"><FONT STYLE="font-size: 8pt">Other operating income (expenses), net</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 8pt">842</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt"><FONT STYLE="font-size: 8pt">Equity accounting</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 8pt">3,124</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt"><FONT STYLE="font-size: 8pt">Financial result, net</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(330,639)</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt"><FONT STYLE="font-size: 8pt">Earnings before income tax and social contribution</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">655,559</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt"><FONT STYLE="font-size: 8pt">Depreciation and amortization</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 8pt">(528,186)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 8pt">(528,186)</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>


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    <DIV STYLE="margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: right; width: 100%">Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->74<!-- Field: /Sequence --> of 87&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: 85%"><P STYLE="text-align: left; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">ITR - Quarterly Information Form - 9/30/2021 - CIA SANEAMENTO BASICO EST SAO PAULO</P></TD><TD STYLE="text-align: center; width: 15%"><P STYLE="text-align: right; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">Version : 1</P></TD></TR></TABLE><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B></B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B>Notes to the Quarterly Information</B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 11pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 11pt Georgia, Times, Serif; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt">&nbsp;</TD>
    <TD COLSPAN="3" STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>January to September
    2020</B></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; width: 41%; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 21%; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Sanitation (i)</B></P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 18%; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Reconciliation to
    the income statement (ii)</B></P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 20%; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>Balance according
    to the financial statements</B></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt"><FONT STYLE="font-size: 8pt">Gross operating revenue </FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 8pt">11,105,595</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 8pt">2,594,452</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 8pt">13,700,047</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt"><FONT STYLE="font-size: 8pt">Gross sales deductions</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(786,671)</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">-</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(786,671)</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt"><FONT STYLE="font-size: 8pt">Net operating revenue </FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">10,318,924</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">2,594,452</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">12,913,376</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt"><FONT STYLE="font-size: 8pt">Costs, selling, general and administrative expenses</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(7,319,285)</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(2,535,189)</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(9,854,474)</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt"><FONT STYLE="font-size: 8pt">Income from operations before other operating expenses, net and equity accounting </FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">2,999,639</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">59,263</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">3,058,902</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt"><FONT STYLE="font-size: 8pt">Other operating income (expenses), net</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 8pt">113,279</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt"><FONT STYLE="font-size: 8pt">Equity accounting</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 8pt">9,604</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt"><FONT STYLE="font-size: 8pt">Financial result, net</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(2,986,392)</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt"><FONT STYLE="font-size: 8pt">Earnings before income tax and social contribution</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 8pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">195,393</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt"><FONT STYLE="font-size: 8pt">Depreciation and amortization</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 8pt">(1,510,301)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 8pt">(1,510,301)</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt/107% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/107% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0pt"></TD><TD STYLE="width: 14.2pt"><FONT STYLE="font-size: 10pt">(i)</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">See Note 31 for information on non-cash effect items and Notes 13 and 14
for information on long-lived assets.</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 12pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0pt"></TD><TD STYLE="width: 14.2pt"><FONT STYLE="font-size: 10pt">(ii)</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">Construction revenue and related costs are not reported to the CODM. Revenue
from construction is recognized in accordance with ICPC 01 (R1) / IFRIC 12 (Concession Agreements) and CPC 47/IFRS 15 (Revenue from Contracts
with Customers), as all performance obligations are satisfied over time. See Note 14 (e) for further information.</FONT></TD></TR></TABLE>


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    <DIV STYLE="margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: right; width: 100%">Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->75<!-- Field: /Sequence --> of 87&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: 85%"><P STYLE="text-align: left; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">ITR - Quarterly Information Form - 9/30/2021 - CIA SANEAMENTO BASICO EST SAO PAULO</P></TD><TD STYLE="text-align: center; width: 15%"><P STYLE="text-align: right; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">Version : 1</P></TD></TR></TABLE><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B></B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B>Notes to the Quarterly Information</B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 11pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0 0 0 14.2pt; text-align: justify; text-indent: -14.2pt">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 9.5pt"><B>26</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Operating revenue</B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 10pt"><B>(a)</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Revenue from sanitation services:</B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0 0 0 14.2pt; text-align: justify; text-indent: -14.2pt">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Georgia, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; width: 44%; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: center; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; width: 14%; padding-left: 5pt">
<DIV STYLE="margin-right: 2.85pt; margin-left: 2.85pt; padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>July to September</B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>2021</B></P>
</DIV></TD>
    <TD STYLE="padding-right: 5pt; width: 14%; padding-left: 5pt">
<DIV STYLE="margin-right: 2.85pt; margin-left: 2.85pt; padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>January to September</B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>2021</B></P>
</DIV></TD>
    <TD STYLE="padding-right: 5pt; width: 14%; padding-left: 5pt">
<DIV STYLE="margin-right: 2.85pt; margin-left: 2.85pt; padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>July to </B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>September 2020</B></P>
</DIV></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 14%; padding-left: 5pt">
<DIV STYLE="margin-right: 2.85pt; margin-left: 2.85pt; padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>January to </B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>September 2020</B></P>
</DIV></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Metropolitan Region of S&atilde;o Paulo</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">3,050,344</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">8,619,977</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">2,561,241</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">7,861,961</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Regional Systems </FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">1,234,581</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">3,483,382</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">1,077,864</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">3,243,634</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Total</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">4,284,925</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">12,103,359</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">3,639,105</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">11,105,595</P></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0 0 0 14.2pt; text-align: justify; text-indent: -14.2pt">&nbsp;</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><B>(b)</B></TD><TD STYLE="text-align: justify"><B>Reconciliation between gross operating revenue and net operating revenue:</B></TD></TR></TABLE>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0 0 0 14.2pt; text-align: justify; text-indent: -14.2pt">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Georgia, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; width: 44%; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; width: 14%; padding-left: 5pt">
<DIV STYLE="margin-right: 2.85pt; margin-left: 2.85pt; padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>July to September</B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>2021</B></P>
</DIV></TD>
    <TD STYLE="padding-right: 5pt; width: 14%; padding-left: 5pt">
<DIV STYLE="margin-right: 2.85pt; margin-left: 2.85pt; padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>January to September</B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>2021</B></P>
</DIV></TD>
    <TD STYLE="padding-right: 5pt; width: 14%; padding-left: 5pt">
<DIV STYLE="margin-right: 2.85pt; margin-left: 2.85pt; padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>July to </B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>September 2020</B></P>
</DIV></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 14%; padding-left: 5pt">
<DIV STYLE="margin-right: 2.85pt; margin-left: 2.85pt; padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>January to </B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>September 2020</B></P>
</DIV></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-left: 2.85pt; text-align: justify">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-left: 5pt; text-align: right">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify"><FONT STYLE="font-size: 9pt">Revenue from sanitation services (i)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">4,284,925</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">12,103,359</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">3,639,105</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">11,105,595</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify"><FONT STYLE="font-size: 9pt">Construction revenue</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">1,186,131</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">3,232,339</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">1,053,432</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">2,594,452</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify"><FONT STYLE="font-size: 9pt">Sales tax</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(302,812)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(857,600)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(237,160)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(735,980)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify"><FONT STYLE="font-size: 9pt">Regulation, Control and Oversight Fee (TRCF)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(14,327)</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(50,845)</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(16,897)</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(50,691)</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify"><FONT STYLE="font-size: 9pt">Net revenue</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">5,153,917</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">14,427,253</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">4,438,480</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">12,913,376</P></TD></TR>
  </TABLE>
<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="letter-spacing: -0.05pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 6pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 3.3pt"></TD><TD STYLE="width: 18pt"><FONT STYLE="font-size: 10pt; letter-spacing: -0.05pt">(i)</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">Includes R$&nbsp;21,825 and R$&nbsp;60,682 referring to the TRCF charged
in the municipalities regulated by ARSESP from July to September and from January to September 2021 (R$&nbsp;17,569 and R$&nbsp;53,475
from July to September and from January to September 2020), respectively. </FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0 0 6pt 50.2pt; text-align: justify"><FONT STYLE="letter-spacing: -0.05pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="letter-spacing: -0.05pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="letter-spacing: -0.05pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 9.5pt"><B>27</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Operating costs and expenses </B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="letter-spacing: -0.05pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="letter-spacing: -0.05pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Georgia, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; width: 44%; padding-right: 2.85pt; padding-bottom: 2.4pt; padding-left: 2.85pt; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 14%; padding-left: 5pt">
<DIV STYLE="margin-right: 2.85pt; margin-left: 2.85pt; padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>July to September</B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>2021</B></P>
</DIV></TD>
    <TD STYLE="padding-right: 5pt; width: 14%; padding-left: 5pt">
<DIV STYLE="margin-right: 2.85pt; margin-left: 2.85pt; padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>January to September</B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>2021</B></P>
</DIV></TD>
    <TD STYLE="padding-right: 5pt; width: 14%; padding-left: 5pt">
<DIV STYLE="margin-right: 2.85pt; margin-left: 2.85pt; padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>July to</B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>September 2020</B></P>
</DIV></TD>
    <TD STYLE="padding-right: 5pt; width: 14%; padding-left: 5pt">
<DIV STYLE="margin-right: 2.85pt; margin-left: 2.85pt; padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>January to</B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>September 2020</B></P>
</DIV></TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 2.85pt; padding-bottom: 2.4pt; padding-left: 2.85pt; text-align: justify"><FONT STYLE="font-size: 9pt">Operating costs</FONT></TD>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 2.4pt; padding-left: 2.85pt; text-align: justify"><FONT STYLE="font-size: 9pt">&#9;Salaries, payroll charges and benefits</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(519,099)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(1,510,459)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(494,967)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(1,486,876)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 2.4pt; padding-left: 2.85pt; text-align: justify"><FONT STYLE="font-size: 9pt">&#9;Pension plan obligations </FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(9,162)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(27,094)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(8,985)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(27,666)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 2.4pt; padding-left: 2.85pt; text-align: justify"><FONT STYLE="font-size: 9pt">&#9;Construction costs (Note 25)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(1,159,463)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(3,159,667)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(1,029,748)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(2,535,189)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 2.4pt; padding-left: 2.85pt; text-align: justify"><FONT STYLE="font-size: 9pt">&#9;General supplies</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(75,650)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(207,362)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(63,664)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(169,127)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 2.4pt; padding-left: 2.85pt; text-align: justify"><FONT STYLE="font-size: 9pt">&#9;Treatment supplies</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(82,110)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(263,366)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(78,889)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(253,851)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 2.4pt; padding-left: 2.85pt; text-align: justify"><FONT STYLE="font-size: 9pt">&#9;Outsourced services</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(380,598)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(1,089,245)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(312,170)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(927,178)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 2.4pt; padding-left: 2.85pt; text-align: justify"><FONT STYLE="font-size: 9pt">&#9;Electricity</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(374,363)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(1,072,350)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(310,497)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(914,042)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 2.4pt; padding-left: 2.85pt; text-align: justify"><FONT STYLE="font-size: 9pt">&#9;General expenses</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(201,828)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(573,382)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(157,481)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(472,256)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 2.4pt; padding-left: 2.85pt; text-align: justify"><FONT STYLE="font-size: 9pt">&#9;Depreciation and amortization</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 2.4pt; text-align: right; border-bottom: Black 0.5pt solid">(522,527)</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 2.4pt; text-align: right; border-bottom: Black 0.5pt solid">(1,533,345)</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 2.4pt; text-align: right; border-bottom: Black 0.5pt solid">(486,089)</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 2.4pt; text-align: right; border-bottom: Black 0.5pt solid">(1,397,217)</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 2.4pt; padding-left: 2.85pt; text-align: justify">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(3,324,800)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(9,436,270)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(2,942,490)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(8,183,402)</FONT></TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 2.85pt; padding-bottom: 2.4pt; padding-left: 2.85pt; text-align: justify">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 2.85pt; padding-bottom: 2.4pt; padding-left: 2.85pt; text-align: justify"><FONT STYLE="font-size: 9pt">Selling expenses</FONT></TD>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 2.4pt; padding-left: 2.85pt; text-align: justify"><FONT STYLE="font-size: 9pt">&#9;Salaries, payroll charges and benefits</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(68,032)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(197,107)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(67,834)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(205,909)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 2.4pt; padding-left: 2.85pt; text-align: justify"><FONT STYLE="font-size: 9pt">&#9;Pension plan obligations</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(1,187)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(3,548)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(1,215)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(3,738)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 2.4pt; padding-left: 2.85pt; text-align: justify"><FONT STYLE="font-size: 9pt">&#9;General supplies</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(1,813)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(5,231)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(1,545)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(3,942)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 2.4pt; padding-left: 2.85pt; text-align: justify"><FONT STYLE="font-size: 9pt">&#9;Outsourced services</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(83,972)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(251,495)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(82,327)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(222,833)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 2.4pt; padding-left: 2.85pt; text-align: justify"><FONT STYLE="font-size: 9pt">&#9;Electricity</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(294)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(970)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(266)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(902)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 2.4pt; padding-left: 2.85pt; text-align: justify"><FONT STYLE="font-size: 9pt">&#9;General expenses</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(25,368)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(83,692)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(26,721)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(87,176)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 2.4pt; padding-left: 2.85pt; text-align: justify"><FONT STYLE="font-size: 9pt">&#9;Depreciation and amortization</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 2.4pt; text-align: right; border-bottom: Black 0.5pt solid">(16,616)</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 2.4pt; text-align: right; border-bottom: Black 0.5pt solid">(49,694)</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 2.4pt; text-align: right; border-bottom: Black 0.5pt solid">(14,510)</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 2.4pt; text-align: right; border-bottom: Black 0.5pt solid">(43,411)</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 2.4pt; padding-left: 2.85pt; text-align: justify">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(197,282)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(591,737)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(194,418)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(567,911)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 2.4pt; padding-left: 2.85pt; text-align: justify">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 2.4pt; padding-left: 2.85pt; text-align: justify"><FONT STYLE="font-size: 9pt">Allowance for doubtful accounts &#9;(Note 9 (c))</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(118,559)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(383,711)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(75,125)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(349,791)</FONT></TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 2.85pt; padding-bottom: 2.4pt; padding-left: 2.85pt; text-align: justify">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 2.85pt; padding-bottom: 2.4pt; padding-left: 2.85pt; text-align: justify"><FONT STYLE="font-size: 9pt">Administrative expenses</FONT></TD>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 2.4pt; padding-left: 2.85pt; text-align: justify"><FONT STYLE="font-size: 9pt">&#9;Salaries, payroll charges and benefits</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(64,765)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(186,076)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(64,695)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(188,479)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 2.4pt; padding-left: 2.85pt; text-align: justify"><FONT STYLE="font-size: 9pt">&#9;Pension plan obligations</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(18,946)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(56,718)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(31,727)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(92,888)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 2.4pt; padding-left: 2.85pt; text-align: justify"><FONT STYLE="font-size: 9pt">&#9;General supplies</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(1,831)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(12,997)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">1,716 </FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(13,629)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 2.4pt; padding-left: 2.85pt; text-align: justify"><FONT STYLE="font-size: 9pt">&#9;Outsourced services</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(57,428)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(165,351)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(63,067)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(173,693)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 2.4pt; padding-left: 2.85pt; text-align: justify"><FONT STYLE="font-size: 9pt">&#9;Electricity</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(327)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(1,229)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(186)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(1,001)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 2.4pt; padding-left: 2.85pt; text-align: justify"><FONT STYLE="font-size: 9pt">&#9;General expenses</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(100,249)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(254,999)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(40,233)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(161,880)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 2.4pt; padding-left: 2.85pt; text-align: justify"><FONT STYLE="font-size: 9pt">&#9;Depreciation and amortization</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(25,771)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(76,981)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(27,587)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(69,673)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 2.4pt; padding-left: 2.85pt; text-align: justify"><FONT STYLE="font-size: 9pt">&#9;Tax expenses</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 2.4pt; text-align: right; border-bottom: Black 0.5pt solid">(23,538)</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 2.4pt; text-align: right; border-bottom: Black 0.5pt solid">(58,553)</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 2.4pt; text-align: right; border-bottom: Black 0.5pt solid">(18,436)</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 2.4pt; text-align: right; border-bottom: Black 0.5pt solid">(52,127)</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 2.4pt; padding-left: 2.85pt; text-align: justify">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(292,855)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(812,904)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(244,215)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(753,370)</FONT></TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 2.85pt; padding-bottom: 2.4pt; padding-left: 2.85pt; text-align: justify">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 2.85pt; padding-bottom: 2.4pt; padding-left: 2.85pt; text-align: justify"><FONT STYLE="font-size: 9pt">Operating costs and expenses</FONT></TD>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 2.4pt; padding-left: 2.85pt; text-align: justify"><FONT STYLE="font-size: 9pt">&#9;Salaries, payroll charges and benefits</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(651,896)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(1,893,642)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(627,496)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(1,881,264)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 2.4pt; padding-left: 2.85pt; text-align: justify"><FONT STYLE="font-size: 9pt">&#9;Pension plan obligations (Note 21 (v))</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(29,295)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(87,360)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(41,927)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(124,292)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 2.4pt; padding-left: 2.85pt; text-align: justify"><FONT STYLE="font-size: 9pt">&#9;Construction costs (Note 25)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(1,159,463)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(3,159,667)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(1,029,748)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(2,535,189)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 2.4pt; padding-left: 2.85pt; text-align: justify"><FONT STYLE="font-size: 9pt">&#9;General supplies</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(79,294)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(225,590)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(63,493)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(186,698)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 2.4pt; padding-left: 2.85pt; text-align: justify"><FONT STYLE="font-size: 9pt">&#9;Treatment supplies</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(82,110)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(263,366)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(78,889)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(253,851)</FONT></TD></TR>
  </TABLE>

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    <DIV STYLE="margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: right; width: 100%">Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->77<!-- Field: /Sequence --> of 87&nbsp;</TD></TR></TABLE></DIV>
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  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; width: 44%; padding-right: 2.85pt; padding-bottom: 2.4pt; padding-left: 2.85pt; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 14%; padding-left: 5pt">
<DIV STYLE="margin-right: 2.85pt; margin-left: 2.85pt; padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>July to September</B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>2021</B></P>
</DIV></TD>
    <TD STYLE="padding-right: 5pt; width: 14%; padding-left: 5pt">
<DIV STYLE="margin-right: 2.85pt; margin-left: 2.85pt; padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>January to September</B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>2021</B></P>
</DIV></TD>
    <TD STYLE="padding-right: 5pt; width: 14%; padding-left: 5pt">
<DIV STYLE="margin-right: 2.85pt; margin-left: 2.85pt; padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>July to</B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>September 2020</B></P>
</DIV></TD>
    <TD STYLE="padding-right: 5pt; width: 14%; padding-left: 5pt">
<DIV STYLE="margin-right: 2.85pt; margin-left: 2.85pt; padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>January to</B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>September 2020</B></P>
</DIV></TD></TR>

<TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; width: 44%; padding-right: 2.85pt; padding-bottom: 2.4pt; padding-left: 2.85pt; text-align: justify"><FONT STYLE="font-size: 9pt">&#9;Outsourced services</FONT></TD>
    <TD STYLE="white-space: nowrap; width: 14%; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(521,998)</FONT></TD>
    <TD STYLE="width: 14%; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(1,506,091)</FONT></TD>
    <TD STYLE="width: 14%; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(457,564)</FONT></TD>
    <TD STYLE="width: 14%; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(1,323,704)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 2.4pt; padding-left: 2.85pt; text-align: justify"><FONT STYLE="font-size: 9pt">&#9;Electricity</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(374,984)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(1,074,549)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(310,949)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(915,945)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 2.4pt; padding-left: 2.85pt; text-align: justify"><FONT STYLE="font-size: 9pt">&#9;General expenses</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(327,445)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(912,073)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(224,435)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(721,312)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 2.4pt; padding-left: 2.85pt; text-align: justify"><FONT STYLE="font-size: 9pt">&#9;Depreciation and amortization</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(564,914)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(1,660,020)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(528,186)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(1,510,301)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 2.4pt; padding-left: 2.85pt; text-align: justify"><FONT STYLE="font-size: 9pt">&#9;Tax expenses</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(23,538)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(58,553)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(18,436)</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 2.4pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">(52,127)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 2.4pt; padding-left: 2.85pt; text-align: justify; text-indent: -2.85pt"><FONT STYLE="font-size: 9pt">&#9;Allowance for doubtful accounts &#9;&#9;(Note 9 (c)) </FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 2.4pt; text-align: right; border-bottom: Black 0.5pt solid">(118,559)</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 2.4pt; text-align: right; border-bottom: Black 0.5pt solid">(383,711)</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 2.4pt; text-align: right; border-bottom: Black 0.5pt solid">(75,125)</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 2.4pt; text-align: right; border-bottom: Black 0.5pt solid">(349,791)</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 2.4pt; padding-left: 2.85pt; text-align: justify">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 2.4pt; text-align: right; border-bottom: Black 1.5pt double">(3,933,496)</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 2.4pt; text-align: right; border-bottom: Black 1.5pt double">(11,224,622)</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 2.4pt; text-align: right; border-bottom: Black 1.5pt double">(3,456,248)</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 2.4pt; text-align: right; border-bottom: Black 1.5pt double">(9,854,474)</P></TD></TR>
  </TABLE>
<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>


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    <DIV STYLE="margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: right; width: 100%">Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->78<!-- Field: /Sequence --> of 87&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: 85%"><P STYLE="text-align: left; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">ITR - Quarterly Information Form - 9/30/2021 - CIA SANEAMENTO BASICO EST SAO PAULO</P></TD><TD STYLE="text-align: center; width: 15%"><P STYLE="text-align: right; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">Version : 1</P></TD></TR></TABLE><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B></B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B>Notes to the Quarterly Information</B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt">&nbsp;</P></DIV>
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<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 9.5pt"><B>28</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Financial income (expenses)</B></FONT></TD></TR></TABLE>

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<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

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    <TD STYLE="white-space: nowrap; width: 44%; padding-top: 2.4pt; padding-right: 2.85pt; padding-bottom: 2.4pt; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; width: 14%; padding-left: 5pt">
<DIV STYLE="margin-right: 2.85pt; margin-left: 2.85pt; padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>July to September</B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>2021</B></P>
</DIV></TD>
    <TD STYLE="padding-right: 5pt; width: 14%; padding-left: 5pt">
<DIV STYLE="margin-right: 2.85pt; margin-left: 2.85pt; padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>January to September</B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>2021</B></P>
</DIV></TD>
    <TD STYLE="padding-right: 5pt; width: 14%; padding-left: 5pt">
<DIV STYLE="margin-right: 2.85pt; margin-left: 2.85pt; padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>July to </B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>September 2020</B></P>
</DIV></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 14%; padding-left: 5pt">
<DIV STYLE="margin-right: 2.85pt; margin-left: 2.85pt; padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>January to </B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center"><B>September 2020</B></P>
</DIV></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt 2.4pt 7.1pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Financial expenses</FONT></TD>
    <TD STYLE="padding: 2.4pt 5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding: 2.4pt 5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding: 2.4pt 5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding: 2.4pt 5pt; white-space: nowrap; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt 2.4pt 7.1pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Interest and charges on borrowings and financing &#8211; local currency </FONT></TD>
    <TD STYLE="padding: 2.4pt 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(167,368)</FONT></TD>
    <TD STYLE="padding: 2.4pt 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(378,707)</FONT></TD>
    <TD STYLE="padding: 2.4pt 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(92,086)</FONT></TD>
    <TD STYLE="padding: 2.4pt 5pt; white-space: nowrap; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(254,926)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt 2.4pt 7.1pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Interest and charges on borrowings and financing &#8211; foreign currency </FONT></TD>
    <TD STYLE="padding: 2.4pt 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(12,518)</FONT></TD>
    <TD STYLE="padding: 2.4pt 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(35,334)</FONT></TD>
    <TD STYLE="padding: 2.4pt 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(39,515)</FONT></TD>
    <TD STYLE="padding: 2.4pt 5pt; white-space: nowrap; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(123,854)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt 2.4pt 7.1pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Other financial expenses </FONT></TD>
    <TD STYLE="padding: 2.4pt 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(81,801)</FONT></TD>
    <TD STYLE="padding: 2.4pt 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(235,345)</FONT></TD>
    <TD STYLE="padding: 2.4pt 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(81,141)</FONT></TD>
    <TD STYLE="padding: 2.4pt 5pt; white-space: nowrap; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(245,411)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt 2.4pt 7.1pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Income tax over international remittance</FONT></TD>
    <TD STYLE="padding: 2.4pt 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">-</FONT></TD>
    <TD STYLE="padding: 2.4pt 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">-</FONT></TD>
    <TD STYLE="padding: 2.4pt 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(5,395)</FONT></TD>
    <TD STYLE="padding: 2.4pt 5pt; white-space: nowrap; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(15,134)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt 2.4pt 7.1pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Inflation adjustment on borrowings and financing </FONT></TD>
    <TD STYLE="padding: 2.4pt 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(52,030)</FONT></TD>
    <TD STYLE="padding: 2.4pt 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(147,412)</FONT></TD>
    <TD STYLE="padding: 2.4pt 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(19,712)</FONT></TD>
    <TD STYLE="padding: 2.4pt 5pt; white-space: nowrap; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(28,217)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt 2.4pt 7.1pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Other monetary variations </FONT></TD>
    <TD STYLE="padding: 2.4pt 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(44,829)</FONT></TD>
    <TD STYLE="padding: 2.4pt 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(127,615)</FONT></TD>
    <TD STYLE="padding: 2.4pt 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(29,294)</FONT></TD>
    <TD STYLE="padding: 2.4pt 5pt; white-space: nowrap; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(95,095)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt 2.4pt 7.1pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Interest and inflation adjustments on provisions </FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 0.5pt solid">(47,609)</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 0.5pt solid">(97,045)</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 0.5pt solid">(18,140)</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 0.5pt solid">(49,549)</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt 2.4pt 7.1pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Total financial expenses</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 1.5pt double">(406,155)</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 1.5pt double">(1,021,458)</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 1.5pt double">(285,283)</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 1.5pt double">(812,186)</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt 2.4pt 7.1pt; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding: 2.4pt 5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding: 2.4pt 5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding: 2.4pt 5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding: 2.4pt 5pt; white-space: nowrap; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt 2.4pt 7.1pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Financial income</FONT></TD>
    <TD STYLE="padding: 2.4pt 5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding: 2.4pt 5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding: 2.4pt 5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding: 2.4pt 5pt; white-space: nowrap; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt 2.4pt 7.1pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Inflation adjustment gains </FONT></TD>
    <TD STYLE="padding: 2.4pt 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">60,078</FONT></TD>
    <TD STYLE="padding: 2.4pt 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">148,731</FONT></TD>
    <TD STYLE="padding: 2.4pt 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">19,275</FONT></TD>
    <TD STYLE="padding: 2.4pt 5pt; white-space: nowrap; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">78,795</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt 2.4pt 7.1pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Income on financial investments </FONT></TD>
    <TD STYLE="padding: 2.4pt 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">50,061</FONT></TD>
    <TD STYLE="padding: 2.4pt 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">97,919</FONT></TD>
    <TD STYLE="padding: 2.4pt 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">18,409</FONT></TD>
    <TD STYLE="padding: 2.4pt 5pt; white-space: nowrap; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">63,358</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt 2.4pt 7.1pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Interest income </FONT></TD>
    <TD STYLE="padding: 2.4pt 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">34,433</FONT></TD>
    <TD STYLE="padding: 2.4pt 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">113,315</FONT></TD>
    <TD STYLE="padding: 2.4pt 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">35,837</FONT></TD>
    <TD STYLE="padding: 2.4pt 5pt; white-space: nowrap; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">107,936</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt 2.4pt 7.1pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Cofins and Pasep </FONT></TD>
    <TD STYLE="padding: 2.4pt 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(7,052)</FONT></TD>
    <TD STYLE="padding: 2.4pt 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(17,070)</FONT></TD>
    <TD STYLE="padding: 2.4pt 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(8,785)</FONT></TD>
    <TD STYLE="padding: 2.4pt 5pt; white-space: nowrap; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(17,261)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt 2.4pt 7.1pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Other </FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 0.5pt solid">-</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 0.5pt solid">41</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 0.5pt solid">-</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 0.5pt solid">4</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt 2.4pt 7.1pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Total financial income</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 1.5pt double">137,520</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 1.5pt double">342,936</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 1.5pt double">64,736</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 1.5pt double">232,832</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt 2.4pt 7.1pt; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding: 2.4pt 5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding: 2.4pt 5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding: 2.4pt 5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding: 2.4pt 5pt; white-space: nowrap; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt 2.4pt 7.1pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Financial income (expenses), net of exchange variation</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 1.5pt double">(268,635)</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 1.5pt double">(678,522)</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 1.5pt double">(220,547)</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 1.5pt double">(579,354)</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt 2.4pt 7.1pt; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding: 2.4pt 5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding: 2.4pt 5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding: 2.4pt 5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding: 2.4pt 5pt; white-space: nowrap; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt 2.4pt 7.1pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Exchange variation</FONT></TD>
    <TD STYLE="padding: 2.4pt 5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding: 2.4pt 5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding: 2.4pt 5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding: 2.4pt 5pt; white-space: nowrap; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt 2.4pt 7.1pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Exchange variation on borrowings and financing </FONT></TD>
    <TD STYLE="padding: 2.4pt 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(252,672)</FONT></TD>
    <TD STYLE="padding: 2.4pt 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">52,071</FONT></TD>
    <TD STYLE="padding: 2.4pt 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(111,059)</FONT></TD>
    <TD STYLE="padding: 2.4pt 5pt; white-space: nowrap; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">(2,409,637)</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt 2.4pt 7.1pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Exchange variation on assets</FONT></TD>
    <TD STYLE="padding: 2.4pt 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">697</FONT></TD>
    <TD STYLE="padding: 2.4pt 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">290</FONT></TD>
    <TD STYLE="padding: 2.4pt 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">967</FONT></TD>
    <TD STYLE="padding: 2.4pt 5pt; white-space: nowrap; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">2,595</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt 2.4pt 7.1pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Other exchange variations</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 0.5pt solid">(14)</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 0.5pt solid">(20)</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 0.5pt solid">-</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 0.5pt solid">4</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt 2.4pt 7.1pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Exchange variations, net</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 1.5pt double">(251,989)</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 1.5pt double">52,341</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 1.5pt double">(110,092)</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 1.5pt double">(2,407,038)</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt 2.4pt 7.1pt; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding: 2.4pt 5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding: 2.4pt 5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding: 2.4pt 5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding: 2.4pt 5pt; white-space: nowrap; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding: 2.4pt 2.85pt 2.4pt 7.1pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Financial income (expenses), net</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 1.5pt double">(520,624)</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 1.5pt double">(626,181)</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 1.5pt double">(330,639)</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 2.4pt 0; text-align: right; border-bottom: Black 1.5pt double">(2,986,392)</P></TD></TR>
  </TABLE>
<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify"><B>&nbsp;</B></P>


<!-- Field: Page; Sequence: 81 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: right; width: 100%">Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->79<!-- Field: /Sequence --> of 87&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: 85%"><P STYLE="text-align: left; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">ITR - Quarterly Information Form - 9/30/2021 - CIA SANEAMENTO BASICO EST SAO PAULO</P></TD><TD STYLE="text-align: center; width: 15%"><P STYLE="text-align: right; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">Version : 1</P></TD></TR></TABLE><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B></B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B>Notes to the Quarterly Information</B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 11pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 9.5pt"><B>29</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Other operating income (expenses), net</B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Georgia, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; width: 44%; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 14%; padding-left: 5pt">
<DIV STYLE="margin-right: 2.85pt; margin-left: 2.85pt; padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>July to September</B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>2021</B></P>
</DIV></TD>
    <TD STYLE="padding-right: 5pt; width: 14%; padding-left: 5pt">
<DIV STYLE="margin-right: 2.85pt; margin-left: 2.85pt; padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>January to September</B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>2021</B></P>
</DIV></TD>
    <TD STYLE="padding-right: 5pt; width: 14%; padding-left: 5pt">
<DIV STYLE="margin-right: 2.85pt; margin-left: 2.85pt; padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>July to </B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>September 2020</B></P>
</DIV></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 14%; padding-left: 5pt">
<DIV STYLE="margin-right: 2.85pt; margin-left: 2.85pt; padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>January to </B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0; text-align: center"><B>September 2020</B></P>
</DIV></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify"><FONT STYLE="font-size: 9pt">Other operating income, net </FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">19,717</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">39,467</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">17,393</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right"><FONT STYLE="font-size: 9pt">58,048</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify"><FONT STYLE="font-size: 9pt">Other operating expenses </FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.75pt solid">(17,031)</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.75pt solid">(27,003)</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.75pt solid">(16,551)</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.75pt solid">55,231</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-bottom: 1pt; text-align: justify"><FONT STYLE="font-size: 9pt">Other operating income (expenses), net</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 2.25pt double">2,686</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 2.25pt double">12,464</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 2.25pt double">842</P></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 2.25pt double">113,279</P></TD></TR>
  </TABLE>
<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">Other operating income includes the sale of property,
plant and equipment, sale of contracts awarded in public bids, right to sell electricity, indemnities and reimbursement of expenses, fines
and guarantees, property leases, reuse water, PURA projects and services, net of Cofins and Pasep.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">Other operating expenses consist mainly of derecognition
of concessions assets due to obsolescence, discontinued construction works, unproductive wells, projects considered economically unfeasible,
losses on property, plant and equipment, estimated losses, and operational assets indemnification.</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 9.5pt"><B>30</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Commitments</B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The Company has agreements to manage and maintain its
activities, as well as agreements to build new projects aiming at achieving the objectives proposed in its target plan. The main unrecognized
committed amounts as of September 30, 2021 are as follows:</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 11pt Georgia, Times, Serif; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom; background-color: white">
    <TD STYLE="white-space: nowrap; width: 35%; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; width: 13%; padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 1pt 0; text-align: center; border-bottom: Black 0.5pt solid"><B>1 year</B></P></TD>
    <TD STYLE="white-space: nowrap; width: 13%; padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 1pt 0; text-align: center; border-bottom: Black 0.5pt solid"><B>1-3 years</B></P></TD>
    <TD STYLE="white-space: nowrap; width: 13%; padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 1pt 0; text-align: center; border-bottom: Black 0.5pt solid"><B>3-5 years</B></P></TD>
    <TD STYLE="white-space: nowrap; width: 13%; padding-right: 5pt; padding-left: 5pt">
<DIV STYLE="padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid">

    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 1pt 0; text-align: center"><B>More than</B></P>
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 1pt 0; text-align: center"><B>5 years</B></P>
</DIV></TD>
    <TD STYLE="white-space: nowrap; width: 13%; padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 1pt 0; text-align: center; border-bottom: Black 0.5pt solid"><B>Total</B></P></TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: white">
    <TD STYLE="white-space: nowrap; padding-top: 1pt; padding-bottom: 1pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Contractual obligations &#8211; Expenses </FONT></TD>
    <TD STYLE="padding: 1pt 5pt; white-space: nowrap; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">1,139,417</FONT></TD>
    <TD STYLE="padding: 1pt 5pt; white-space: nowrap; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">877,714</FONT></TD>
    <TD STYLE="padding: 1pt 5pt; white-space: nowrap; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">148,565</FONT></TD>
    <TD STYLE="padding: 1pt 5pt; white-space: nowrap; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">751,145</FONT></TD>
    <TD STYLE="padding: 1pt 5pt; white-space: nowrap; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">2,916,841</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: white">
    <TD STYLE="white-space: nowrap; padding-top: 1pt; padding-bottom: 1pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Contractual obligations - Investments</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 1pt 0; text-align: right; border-bottom: Black 0.5pt solid">1,825,199</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 1pt 0; text-align: right; border-bottom: Black 0.5pt solid">1,786,253</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 1pt 0; text-align: right; border-bottom: Black 0.5pt solid">1,540,568</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 1pt 0; text-align: right; border-bottom: Black 0.5pt solid">339,828</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 1pt 0; text-align: right; border-bottom: Black 0.5pt solid">5,491,848</P></TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: white">
    <TD STYLE="white-space: nowrap; padding-top: 1pt; padding-bottom: 1pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Total</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 1pt 0; text-align: right; border-bottom: Black 1.5pt double">2,964,616</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 1pt 0; text-align: right; border-bottom: Black 1.5pt double">2,663,967</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 1pt 0; text-align: right; border-bottom: Black 1.5pt double">1,689,133</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 1pt 0; text-align: right; border-bottom: Black 1.5pt double">1,090,973</P></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 1pt 0; text-align: right; border-bottom: Black 1.5pt double">8,408,689</P></TD></TR>
  </TABLE>
<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>


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    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 85%"><P STYLE="text-align: left; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">ITR - Quarterly Information Form - 9/30/2021 - CIA SANEAMENTO BASICO EST SAO PAULO</P></TD><TD STYLE="text-align: center; width: 15%"><P STYLE="text-align: right; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">Version : 1</P></TD></TR></TABLE><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B></B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B>Notes to the Quarterly Information</B></P><P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 11pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 9.5pt"><B>31</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Supplemental cash flow information</B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Georgia, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; width: 66%; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: center; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; width: 17%; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>January to September
    2021</B></P></TD>
    <TD STYLE="padding-right: 5pt; width: 17%; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: center; border-bottom: Black 0.5pt solid"><B>January to September
    2020</B></P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Total additions to contract assets (Note 13)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">3,466,866</FONT></TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">2,762,570</FONT></TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Total additions to intangible assets (Note 14 (b))</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">145,552</FONT></TD>
    <TD STYLE="vertical-align: bottom; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">387,529</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Items not affecting cash (see breakdown below)</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(1,135,191)</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">(815,470)</P></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Total additions to intangible and contract assets according to the statement of cash flows</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">2,477,227</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">2,334,629</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify; line-height: 110%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Investments and financing operations affecting intangible assets but not cash:</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%">&nbsp;</TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Interest capitalized in the period (Note 14 (d))</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">183,241</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">187,798</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; text-align: justify; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Contractors payable</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">235,789</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">112,562</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Program contract commitments</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">-</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">4,422</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Performance agreements</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">519,784</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">143,981</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Lease</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">-</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">26,670</FONT></TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Right of use </FONT></TD>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">123,705</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">-</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Construction margin (Notes 14 (e) and 25)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">72,672</FONT></TD>
    <TD STYLE="padding-right: 5pt; padding-bottom: 1pt; padding-left: 5pt; text-align: right; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">59,263</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Agreement with the Municipality of Mau&aacute;</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">-</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 0.5pt solid">280,774</P></TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 2.85pt; padding-bottom: 1pt; padding-left: 2.85pt; line-height: 110%"><FONT STYLE="font-size: 9pt; line-height: 110%">Total</FONT></TD>
    <TD STYLE="padding-right: 5pt; white-space: nowrap; vertical-align: bottom; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">1,135,191</P></TD>
    <TD STYLE="padding-right: 5pt; padding-left: 5pt">
    <P STYLE="font: 9pt/110% Georgia, Times, Serif; margin: 0 0 1pt; text-align: right; border-bottom: Black 1.5pt double">815,470</P></TD></TR>
  </TABLE>
<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt/110% Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 9.5pt"><B>32</B></FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Events after the reporting period</B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-family: Symbol; font-size: 10pt">&middot;</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Full payment of the 25th Issue Debentures </B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">As of October 15, 2021, the Company fully amortized the
25th Issue of Debentures, totaling R$ 1,585.9 million, of which R$ 1,450.0 million in principal, and R$ 135.9 million in interest.</P>

<P STYLE="font: 12pt Tms Rmn,serif; margin: 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Georgia, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-family: Symbol; font-size: 10pt">&middot;</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>29th Issue Debentures </B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0; text-align: justify"><B>&nbsp;</B></P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">As of October 28, 2021, the Company&#8217;s Board of
Directors approved the 29th issue of simple, unsecured debentures, not convertible into shares, for public distribution, according to
CVM Instruction 400, at an initial amount of R$ 1.25 billion, with the option to increase by up to twenty percent (20%) the amount initially
offered.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0; text-align: justify">The Offering will only start after: (i) the approval
of its registration by CVM; (ii) the release of the start of the Offering; e (iii) the availability of the definitive prospectus of the
Offering to investors, according to CVM Instruction 400. Moreover, the performance of the Offering will be contingent upon, among other
factors, the market conditions.</P>

<P STYLE="font: bold 9.5pt Georgia, Times, Serif; margin: 5.2pt 0 0 67.95pt; text-indent: -17.55pt">&nbsp;</P>

<P STYLE="font: 11.5pt Georgia, Times, Serif; margin: 0.45pt 0 0"><B>&nbsp;</B></P>


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    <!-- Field: /Page -->

<P STYLE="font: 9.5pt Georgia, Times, Serif; margin: 0.1pt 0 0">&nbsp;</P>

<P STYLE="font: bold 12pt Arial, Helvetica, Sans-Serif; margin: 4.65pt 0 0 16pt">Comments on the Company&#8217;s Projections</P>

<P STYLE="font: 13pt Arial, Helvetica, Sans-Serif; margin: 0"><B>&nbsp;</B></P>

<P STYLE="font: 13pt Arial, Helvetica, Sans-Serif; margin: 0"><B>&nbsp;</B></P>

<P STYLE="font: 13pt Arial, Helvetica, Sans-Serif; margin: 0"><B>&nbsp;</B></P>

<P STYLE="font: 13pt Arial, Helvetica, Sans-Serif; margin: 0"><B>&nbsp;</B></P>

<P STYLE="font: 13pt Arial, Helvetica, Sans-Serif; margin: 0"><B>&nbsp;</B></P>

<P STYLE="font: 10.5pt Arial, Helvetica, Sans-Serif; margin: 0.15pt 0 0"><B>&nbsp;</B></P>

<P STYLE="font: bold 9.5pt Georgia, Times, Serif; margin: 0 0 0 62.7pt; text-align: justify; text-indent: 0in">Comments on the Company&#8217;s
Projections</P>

<P STYLE="font: 11pt Georgia, Times, Serif; margin: 0"><B>&nbsp;</B></P>

<P STYLE="font: 11.5pt Georgia, Times, Serif; margin: 0.1pt 0 0"><B>&nbsp;</B></P>

<P STYLE="font: 9.5pt/112% Georgia, Times, Serif; margin: 0 73.55pt 0 62.7pt; text-align: justify">The projections presented in the Reference
Form are annual and not quarterly. Therefore, the quarterly comparison between information disclosed in the Reference Form with quarterly
results shall not apply.</P>

<P STYLE="font: 10.5pt Georgia, Times, Serif; margin: 0.1pt 0 0">&nbsp;</P>

<P STYLE="font: 9.5pt Georgia, Times, Serif; margin: 0 0 0 62.7pt; text-align: justify">Projections are monitored every year and disclosed
in the Reference Form.</P>

<P STYLE="font: 9.5pt Georgia, Times, Serif; margin: 0 0 0 62.7pt; text-align: justify">&nbsp;</P>

<P STYLE="font: 9.5pt Georgia, Times, Serif; margin: 0 0 0 62.7pt; text-align: justify">&nbsp;</P>

<P STYLE="font: 9.5pt Georgia, Times, Serif; margin: 0 0 0 62.7pt; text-align: justify">&nbsp;</P>

<P STYLE="font: 9.5pt Georgia, Times, Serif; margin: 0 0 0 62.7pt; text-align: justify">&nbsp;</P>

<P STYLE="font: 9.5pt Georgia, Times, Serif; margin: 0 0 0 62.7pt; text-align: justify">&nbsp;</P>

<P STYLE="font: 9.5pt Georgia, Times, Serif; margin: 0 0 0 62.7pt; text-align: justify">&nbsp;</P>


<!-- Field: Page; Sequence: 84 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: right; width: 100%">Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->82<!-- Field: /Sequence --> of 87&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: 85%"><P STYLE="text-align: left; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">ITR - Quarterly Information Form - 9/30/2021 - CIA SANEAMENTO BASICO EST SAO PAULO</P></TD><TD STYLE="text-align: center; width: 15%"><P STYLE="text-align: right; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">Version : 1</P></TD></TR></TABLE></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 9.5pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B>Other Information Deemed as Relevant by the Company</B></P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 9.5pt Georgia, Times, Serif; margin: 0.4pt 0 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Georgia, Times, Serif; margin-top: 5.05pt; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 65pt"></TD><TD STYLE="width: 21.35pt"><FONT STYLE="font-size: 10pt; letter-spacing: -0.05pt"><B>1.</B></FONT></TD><TD><FONT STYLE="font-size: 10pt"><B>CHANGES IN INTEREST HELD BY THE CONTROLLING SHAREHOLDER, BOARD MEMBERS, AND EXECUTIVE OFFICERS</B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0.05pt 0 0"><B>&nbsp;</B></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 11pt Georgia, Times, Serif; border-collapse: collapse">
  <TR STYLE="vertical-align: top; background-color: silver">
    <TD COLSPAN="5" STYLE="border: black 1pt solid">
    <P STYLE="font: 10pt Georgia, Times, Serif; margin: 0 72.15pt 0 73.1pt; text-align: center"><B>CONSOLIDATED SHAREHOLDING POSITION OF CONTROLLING
    SHAREHOLDERS, MANAGEMENT, AND OUTSTANDING SHARES</B></P>
    <P STYLE="font: 10pt/10.4pt Georgia, Times, Serif; margin: 0 172.95pt 0 173.8pt; text-align: center"><B>Position as of September 30, 2021</B></P></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 35%; border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid">
    <P STYLE="font: 9.5pt Georgia, Times, Serif; margin: 0.5pt 0 0"><B>&nbsp;</B></P>
    <P STYLE="font: 10pt Georgia, Times, Serif; margin: 0.05pt 52.6pt 0 53.25pt; text-align: center"><B>Shareholder</B></P></TD>
    <TD STYLE="width: 21%; border-bottom: black 1pt solid; border-right: black 1pt solid">
    <P STYLE="font: 10pt/11.3pt Georgia, Times, Serif; margin: 0 6.35pt 0 7.15pt; text-align: center"><B>Number of</B></P>
    <P STYLE="font: 10pt/11.3pt Georgia, Times, Serif; margin: 0 6.35pt 0 7.3pt; text-align: center"><B>Common Shares (units)</B></P></TD>
    <TD STYLE="width: 9%; border-bottom: black 1pt solid; border-right: black 1pt solid">
    <P STYLE="font: 9.5pt Georgia, Times, Serif; margin: 0.5pt 0 0"><B>&nbsp;</B></P>
    <P STYLE="font: 10pt Georgia, Times, Serif; margin: 0.05pt 0 0 0.9pt; text-align: center"><B>%</B></P></TD>
    <TD STYLE="width: 23%; border-bottom: black 1pt solid; border-right: black 1pt solid">
    <P STYLE="font: 10pt Georgia, Times, Serif; margin: 0 9.25pt 0 10.25pt; text-align: center"><B>Total Number of Shares</B></P>
    <P STYLE="font: 10pt/10.4pt Georgia, Times, Serif; margin: 0 9.25pt 0 10.1pt; text-align: center"><B>(units)</B></P></TD>
    <TD STYLE="width: 12%; border-bottom: black 1pt solid; border-right: black 1pt solid">
    <P STYLE="font: 9.5pt Georgia, Times, Serif; margin: 0.5pt 0 0"><B>&nbsp;</B></P>
    <P STYLE="font: 10pt Georgia, Times, Serif; margin: 0.05pt 0 0 1.05pt; text-align: center"><B>%</B></P></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 5.6pt; padding-left: 3.45pt; line-height: 10.4pt"><FONT STYLE="font-size: 10pt"><B>Controlling Shareholder</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 5.55pt; padding-left: 3.45pt; line-height: 10.45pt"><FONT STYLE="font-size: 10pt">Treasury Department</FONT><FONT STYLE="font-size: 6.5pt">(1)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 5.55pt; padding-right: 2.6pt; text-align: right; line-height: 10.45pt"><FONT STYLE="font-size: 10pt">343,506,664</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 5.55pt; padding-right: 2.65pt; text-align: right; line-height: 10.45pt"><FONT STYLE="font-size: 10pt">50.3%</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 5.55pt; padding-right: 2.6pt; text-align: right; line-height: 10.45pt"><FONT STYLE="font-size: 10pt">343,506,664</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 5.55pt; padding-right: 2.45pt; text-align: right; line-height: 10.45pt"><FONT STYLE="font-size: 10pt">50.3%</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid">
    <P STYLE="font: 10pt/11.3pt Georgia, Times, Serif; margin: 0 0 0 3.45pt">Companhia Paulista de Parcerias</P>
    <P STYLE="font: 10pt/10.45pt Georgia, Times, Serif; margin: 0 0 0 3.45pt">- CPP</P></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">
    <P STYLE="font: 9.5pt Georgia, Times, Serif; margin: 0.45pt 0 0"><B>&nbsp;</B></P>
    <P STYLE="font: 10pt/10.45pt Georgia, Times, Serif; margin: 0 2.7pt 0 0; text-align: right">6</P></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">
    <P STYLE="font: 9.5pt Georgia, Times, Serif; margin: 0.45pt 0 0"><B>&nbsp;</B></P>
    <P STYLE="font: 10pt/10.45pt Georgia, Times, Serif; margin: 0 2.75pt 0 0; text-align: right">0.0%</P></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">
    <P STYLE="font: 9.5pt Georgia, Times, Serif; margin: 0.45pt 0 0"><B>&nbsp;</B></P>
    <P STYLE="font: 10pt/10.45pt Georgia, Times, Serif; margin: 0 2.7pt 0 0; text-align: right">6</P></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">
    <P STYLE="font: 9.5pt Georgia, Times, Serif; margin: 0.45pt 0 0"><B>&nbsp;</B></P>
    <P STYLE="font: 10pt/10.45pt Georgia, Times, Serif; margin: 0 2.5pt 0 0; text-align: right">0.0%</P></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 5.55pt; padding-left: 3.45pt; line-height: 10.4pt"><FONT STYLE="font-size: 10pt"><B>Management</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 5.6pt; padding-left: 3.45pt; line-height: 10.4pt"><FONT STYLE="font-size: 10pt">Board of Directors</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 5.6pt; padding-right: 2.75pt; text-align: right; line-height: 10.4pt"><FONT STYLE="font-size: 10pt">0</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 5.6pt; padding-right: 2.8pt; text-align: right; line-height: 10.4pt"><FONT STYLE="font-size: 10pt">0.0%</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 5.6pt; padding-right: 2.75pt; text-align: right; line-height: 10.4pt"><FONT STYLE="font-size: 10pt">0</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 5.6pt; padding-right: 2.55pt; text-align: right; line-height: 10.4pt"><FONT STYLE="font-size: 10pt">0.0%</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 5.55pt; padding-left: 3.45pt; line-height: 10.45pt"><FONT STYLE="font-size: 10pt">Executive Board</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 5.55pt; padding-right: 2.75pt; text-align: right; line-height: 10.45pt"><FONT STYLE="font-size: 10pt">200</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 5.55pt; padding-right: 2.8pt; text-align: right; line-height: 10.45pt"><FONT STYLE="font-size: 10pt">0.0%</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 5.55pt; padding-right: 2.75pt; text-align: right; line-height: 10.45pt"><FONT STYLE="font-size: 10pt">200</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 5.55pt; padding-right: 2.55pt; text-align: right; line-height: 10.45pt"><FONT STYLE="font-size: 10pt">0.0%</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 5.6pt; padding-left: 3.45pt; line-height: 10.4pt"><FONT STYLE="font-size: 10pt"><B>Fiscal Council</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 5.6pt; padding-right: 2.65pt; text-align: right; line-height: 10.4pt"><FONT STYLE="font-size: 10pt">0</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 5.6pt; padding-right: 2.75pt; text-align: right; line-height: 10.4pt"><FONT STYLE="font-size: 10pt">0.0%</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 5.6pt; padding-right: 2.65pt; text-align: right; line-height: 10.4pt"><FONT STYLE="font-size: 10pt">0</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 5.6pt; padding-right: 2.5pt; text-align: right; line-height: 10.4pt"><FONT STYLE="font-size: 10pt">0.0%</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 5.55pt; padding-left: 3.45pt; line-height: 10.4pt"><FONT STYLE="font-size: 10pt"><B>Treasury Shares</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 5.55pt; padding-right: 2.7pt; text-align: right; line-height: 10.4pt"><FONT STYLE="font-size: 10pt">-</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 5.55pt; padding-right: 2.8pt; text-align: right; line-height: 10.4pt"><FONT STYLE="font-size: 10pt">-</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 5.55pt; padding-right: 2.8pt; text-align: right; line-height: 10.4pt"><FONT STYLE="font-size: 10pt">-</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 5.55pt; padding-right: 2.65pt; text-align: right; line-height: 10.4pt"><FONT STYLE="font-size: 10pt">-</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 5.55pt; padding-left: 3.45pt; line-height: 10.45pt"><FONT STYLE="font-size: 10pt"><B>Other Shareholders</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 5.6pt; padding-left: 3.45pt; line-height: 10.4pt"><FONT STYLE="font-size: 10pt"><B>Total</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 5.6pt; padding-right: 2.65pt; text-align: right; line-height: 10.4pt"><FONT STYLE="font-size: 10pt"><B>343,506,870</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 5.6pt; padding-right: 2.65pt; text-align: right; line-height: 10.4pt"><FONT STYLE="font-size: 10pt"><B>50.3%</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 5.6pt; padding-right: 2.7pt; text-align: right; line-height: 10.4pt"><FONT STYLE="font-size: 10pt"><B>343,506,870</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 5.6pt; padding-right: 2.45pt; text-align: right; line-height: 10.4pt"><FONT STYLE="font-size: 10pt"><B>50.3%</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 5.6pt; padding-left: 3.45pt; line-height: 10.35pt"><FONT STYLE="font-size: 10pt">Outstanding Shares</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 5.6pt; padding-right: 2.6pt; text-align: right; line-height: 10.35pt"><FONT STYLE="font-size: 10pt">340,002,999</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 5.6pt; padding-right: 2.65pt; text-align: right; line-height: 10.35pt"><FONT STYLE="font-size: 10pt">49.7%</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 5.6pt; padding-right: 2.6pt; text-align: right; line-height: 10.35pt"><FONT STYLE="font-size: 10pt">340,002,999</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 5.6pt; padding-right: 2.4pt; text-align: right; line-height: 10.35pt"><FONT STYLE="font-size: 10pt">49.7%</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 5.5pt Georgia, Times, Serif; margin: 0.05pt 0 0"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 5.05pt 0 0 65.05pt">(1) Holder of the shares corresponding to the S&atilde;o Paulo
State&#8217;s direct control.</P>


<!-- Field: Page; Sequence: 85 -->
    <DIV STYLE="margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: right; width: 100%">Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->83<!-- Field: /Sequence --> of 87&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: 85%"><P STYLE="text-align: left; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">ITR - Quarterly Information Form - 9/30/2021 - CIA SANEAMENTO BASICO EST SAO PAULO</P></TD><TD STYLE="text-align: center; width: 15%"><P STYLE="text-align: right; font: 9pt Arial MT,sans-serif; margin: 0.7pt 0 0 1pt">Version : 1</P></TD></TR></TABLE></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B>&nbsp;</B></P>

<P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0.6pt 0 0 1pt"><B>Other Information Deemed as Relevant by the Company</B></P>

<P STYLE="font: 14pt Georgia, Times, Serif; margin: 0.35pt 0 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 11pt Georgia, Times, Serif; border-collapse: collapse">
  <TR STYLE="vertical-align: top; background-color: silver">
    <TD COLSPAN="5" STYLE="border: black 1pt solid">
    <P STYLE="font: 10pt Georgia, Times, Serif; margin: 0 72.15pt 0 73.1pt; text-align: center"><B>CONSOLIDATED SHAREHOLDING POSITION OF CONTROLLING
    SHAREHOLDERS, MANAGEMENT, AND OUTSTANDING SHARES</B></P>
    <P STYLE="font: 10pt/10.4pt Georgia, Times, Serif; margin: 0 173pt 0 173.8pt; text-align: center"><B>Position as of September 30, 2020</B></P></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 35%; border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid">
    <P STYLE="font: 9.5pt Georgia, Times, Serif; margin: 0.5pt 0 0">&nbsp;</P>
    <P STYLE="font: 10pt Georgia, Times, Serif; margin: 0.05pt 52.6pt 0 53.25pt; text-align: center"><B>Shareholder</B></P></TD>
    <TD STYLE="width: 21%; border-bottom: black 1pt solid; border-right: black 1pt solid">
    <P STYLE="font: 10pt/11.3pt Georgia, Times, Serif; margin: 0 6.35pt 0 7.15pt; text-align: center"><B>Number of</B></P>
    <P STYLE="font: 10pt/11.3pt Georgia, Times, Serif; margin: 0 6.35pt 0 7.3pt; text-align: center"><B>Common Shares (units)</B></P></TD>
    <TD STYLE="width: 9%; border-bottom: black 1pt solid; border-right: black 1pt solid">
    <P STYLE="font: 9.5pt Georgia, Times, Serif; margin: 0.5pt 0 0">&nbsp;</P>
    <P STYLE="font: 10pt Georgia, Times, Serif; margin: 0.05pt 0 0 0.9pt; text-align: center"><B>%</B></P></TD>
    <TD STYLE="width: 23%; border-bottom: black 1pt solid; border-right: black 1pt solid">
    <P STYLE="font: 10pt Georgia, Times, Serif; margin: 0 9.25pt 0 10.25pt; text-align: center"><B>Total Number of Shares</B></P>
    <P STYLE="font: 10pt/10.4pt Georgia, Times, Serif; margin: 0 9.25pt 0 10.1pt; text-align: center"><B>(units)</B></P></TD>
    <TD STYLE="width: 12%; border-bottom: black 1pt solid; border-right: black 1pt solid">
    <P STYLE="font: 9.5pt Georgia, Times, Serif; margin: 0.5pt 0 0">&nbsp;</P>
    <P STYLE="font: 10pt Georgia, Times, Serif; margin: 0.05pt 0 0 1.05pt; text-align: center"><B>%</B></P></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 5.6pt; padding-left: 3.45pt; line-height: 10.4pt"><FONT STYLE="font-size: 10pt"><B>Controlling Shareholder</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 5.55pt; padding-left: 3.45pt; line-height: 10.45pt"><FONT STYLE="font-size: 10pt">Treasury Department</FONT><FONT STYLE="font-size: 6.5pt">(1)</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 5.55pt; padding-right: 2.75pt; text-align: right; line-height: 10.45pt"><FONT STYLE="font-size: 10pt">343,507,750</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 5.55pt; padding-right: 2.75pt; text-align: right; line-height: 10.45pt"><FONT STYLE="font-size: 10pt">50.3%</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 5.55pt; padding-right: 2.75pt; text-align: right; line-height: 10.45pt"><FONT STYLE="font-size: 10pt">343,507,750</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 5.55pt; padding-right: 2.55pt; text-align: right; line-height: 10.45pt"><FONT STYLE="font-size: 10pt">50.3%</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid">
    <P STYLE="font: 10pt/11.3pt Georgia, Times, Serif; margin: 0 0 0 3.45pt">Companhia Paulista de Parcerias</P>
    <P STYLE="font: 10pt/10.45pt Georgia, Times, Serif; margin: 0 0 0 3.45pt">- CPP</P></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">
    <P STYLE="font: 9.5pt Georgia, Times, Serif; margin: 0.45pt 0 0">&nbsp;</P>
    <P STYLE="font: 10pt/10.45pt Georgia, Times, Serif; margin: 0 2.7pt 0 0; text-align: right">6</P></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">
    <P STYLE="font: 9.5pt Georgia, Times, Serif; margin: 0.45pt 0 0">&nbsp;</P>
    <P STYLE="font: 10pt/10.45pt Georgia, Times, Serif; margin: 0 2.75pt 0 0; text-align: right">0.0%</P></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">
    <P STYLE="font: 9.5pt Georgia, Times, Serif; margin: 0.45pt 0 0">&nbsp;</P>
    <P STYLE="font: 10pt/10.45pt Georgia, Times, Serif; margin: 0 2.7pt 0 0; text-align: right">6</P></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">
    <P STYLE="font: 9.5pt Georgia, Times, Serif; margin: 0.45pt 0 0">&nbsp;</P>
    <P STYLE="font: 10pt/10.45pt Georgia, Times, Serif; margin: 0 2.5pt 0 0; text-align: right">0.0%</P></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 5.55pt; padding-left: 3.45pt; line-height: 10.45pt"><FONT STYLE="font-size: 10pt"><B>Management</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 5.55pt; padding-left: 3.45pt; line-height: 10.4pt"><FONT STYLE="font-size: 10pt">Board of Directors</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 5.55pt; padding-right: 2.7pt; text-align: right; line-height: 10.4pt"><FONT STYLE="font-size: 10pt">3,000</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 5.55pt; padding-right: 2.7pt; text-align: right; line-height: 10.4pt"><FONT STYLE="font-size: 10pt">0.0%</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 5.55pt; padding-right: 2.75pt; text-align: right; line-height: 10.4pt"><FONT STYLE="font-size: 10pt">3,000</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 5.55pt; padding-right: 2.5pt; text-align: right; line-height: 10.4pt"><FONT STYLE="font-size: 10pt">0.0%</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 5.55pt; padding-left: 3.45pt; line-height: 10.45pt"><FONT STYLE="font-size: 10pt">Executive Board</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 5.55pt; padding-right: 2.7pt; text-align: right; line-height: 10.45pt"><FONT STYLE="font-size: 10pt">-</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 5.55pt; padding-right: 2.7pt; text-align: right; line-height: 10.45pt"><FONT STYLE="font-size: 10pt">-</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 5.55pt; padding-right: 2.7pt; text-align: right; line-height: 10.45pt"><FONT STYLE="font-size: 10pt">-</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 5.55pt; padding-right: 2.5pt; text-align: right; line-height: 10.45pt"><FONT STYLE="font-size: 10pt">-</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 5.55pt; padding-left: 3.45pt; line-height: 10.4pt"><FONT STYLE="font-size: 10pt"><B>Fiscal Council</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 5.55pt; padding-right: 2.65pt; text-align: right; line-height: 10.4pt"><FONT STYLE="font-size: 10pt">0</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 5.55pt; padding-right: 3.5pt; text-align: right; line-height: 10.4pt"><FONT STYLE="font-size: 10pt">0.0%</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 5.55pt; padding-right: 2.65pt; text-align: right; line-height: 10.4pt"><FONT STYLE="font-size: 10pt">0</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 5.55pt; padding-right: 2.5pt; text-align: right; line-height: 10.4pt"><FONT STYLE="font-size: 10pt">0.0%</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 5.55pt; padding-left: 3.45pt; line-height: 10.45pt"><FONT STYLE="font-size: 10pt"><B>Treasury Shares</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 5.55pt; padding-right: 2.7pt; text-align: right; line-height: 10.45pt"><FONT STYLE="font-size: 10pt">-</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 5.55pt; padding-right: 2.8pt; text-align: right; line-height: 10.45pt"><FONT STYLE="font-size: 10pt">-</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 5.55pt; padding-right: 2.8pt; text-align: right; line-height: 10.45pt"><FONT STYLE="font-size: 10pt">-</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 5.55pt; padding-right: 2.65pt; text-align: right; line-height: 10.45pt"><FONT STYLE="font-size: 10pt">-</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 5.55pt; padding-left: 3.45pt; line-height: 10.45pt"><FONT STYLE="font-size: 10pt"><B>Other Shareholders</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 5.55pt; padding-left: 3.45pt; line-height: 10.4pt"><FONT STYLE="font-size: 10pt"><B>Total</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 5.55pt; padding-right: 2.6pt; text-align: right; line-height: 10.4pt"><FONT STYLE="font-size: 10pt"><B>343,510,756</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 5.55pt; padding-right: 2.65pt; text-align: right; line-height: 10.4pt"><FONT STYLE="font-size: 10pt"><B>50.3%</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 5.55pt; padding-right: 2.7pt; text-align: right; line-height: 10.4pt"><FONT STYLE="font-size: 10pt"><B>343,510,756</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 5.55pt; padding-right: 2.4pt; text-align: right; line-height: 10.4pt"><FONT STYLE="font-size: 10pt"><B>50.3%</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 5.55pt; padding-left: 3.45pt; line-height: 10.35pt"><FONT STYLE="font-size: 10pt">Outstanding Shares</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 5.55pt; padding-right: 2.65pt; text-align: right; line-height: 10.35pt"><FONT STYLE="font-size: 10pt">339,999,113</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 5.55pt; padding-right: 2.65pt; text-align: right; line-height: 10.35pt"><FONT STYLE="font-size: 10pt">49.7%</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 5.55pt; padding-right: 2.6pt; text-align: right; line-height: 10.35pt"><FONT STYLE="font-size: 10pt">339,999,113</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 5.55pt; padding-right: 2.4pt; text-align: right; line-height: 10.35pt"><FONT STYLE="font-size: 10pt">49.7%</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 5.5pt Georgia, Times, Serif; margin: 0.05pt 0 0">&nbsp;</P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 5.05pt 0 0 65.05pt">(1) Holder of the shares corresponding to the S&atilde;o Paulo
State&#8217;s direct control.</P>

<P STYLE="font: 11pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 11pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Georgia, Times, Serif; margin-top: 9.1pt; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 65pt"></TD><TD STYLE="width: 21.35pt"><FONT STYLE="font-size: 10pt; letter-spacing: -0.05pt"><B>2.</B></FONT></TD><TD><FONT STYLE="font-size: 10pt"><B>SHAREHOLDING POSITION</B></FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Georgia, Times, Serif; margin: 0 0 0.05pt"><B>&nbsp;</B></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 11pt Georgia, Times, Serif; border-collapse: collapse">
  <TR STYLE="vertical-align: top; background-color: silver">
    <TD COLSPAN="5" STYLE="border: black 1pt solid; padding-right: 2.75pt; padding-left: 3.45pt; line-height: 11.3pt"><FONT STYLE="font-size: 10pt"><B>SHAREHOLDING POSITION OF HOLDERS OF MORE THAN 5% OF EACH TYPE AND CLASS OF COMPANY SHARES, UP TO THE INDIVIDUAL LEVEL</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top; background-color: silver">
    <TD COLSPAN="3" STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid">
    <P STYLE="font: 10pt/11.3pt Georgia, Times, Serif; margin: 0 0 0 3.45pt"><B>Company:</B></P>
    <P STYLE="font: 10pt/10.45pt Georgia, Times, Serif; margin: 0 0 0 3.45pt"><B>CIA SANEAMENTO B&Aacute;SICO ESTADO S&Atilde;O PAULO</B></P></TD>
    <TD COLSPAN="2" STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 22.35pt; padding-left: 55.85pt; line-height: 11.3pt; text-indent: -31.15pt"><FONT STYLE="font-size: 10pt"><B>Position as of September 30, 2021 (Number of shares)</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 8.4pt; padding-left: 30.15pt; line-height: 10.45pt"><FONT STYLE="font-size: 10pt"><B>Common shares</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 8.4pt; padding-right: 69.75pt; padding-left: 70.95pt; text-align: center; line-height: 10.45pt"><FONT STYLE="font-size: 10pt"><B>Total</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 35%; border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 8.45pt; padding-left: 3.45pt; line-height: 10.4pt"><FONT STYLE="font-size: 10pt"><B>Shareholder</B></FONT></TD>
    <TD STYLE="width: 22%; border-bottom: black 1pt solid; border-right: black 1pt solid; padding-top: 8.45pt; padding-left: 23.2pt; line-height: 10.4pt"><FONT STYLE="font-size: 10pt"><B>Number of shares</B></FONT></TD>
    <TD STYLE="width: 8%; border-bottom: black 1pt solid; border-right: black 1pt solid; padding-top: 8.45pt; padding-left: 1.1pt; text-align: center; line-height: 10.4pt"><FONT STYLE="font-size: 10pt"><B>%</B></FONT></TD>
    <TD STYLE="width: 22%; border-bottom: black 1pt solid; border-right: black 1pt solid; padding-top: 8.45pt; padding-left: 23.3pt; line-height: 10.4pt"><FONT STYLE="font-size: 10pt"><B>Number of shares</B></FONT></TD>
    <TD STYLE="width: 13%; border-bottom: black 1pt solid; border-right: black 1pt solid; padding-top: 8.45pt; padding-left: 1.5pt; text-align: center; line-height: 10.4pt"><FONT STYLE="font-size: 10pt"><B>%</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid">
    <P STYLE="font: 9.5pt Georgia, Times, Serif; margin: 0.5pt 0 0"><B>&nbsp;</B></P>
    <P STYLE="font: 10pt/10.4pt Georgia, Times, Serif; margin: 0.05pt 0 0 3.45pt">Treasury Department</P></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">
    <P STYLE="font: 9.5pt Georgia, Times, Serif; margin: 0.5pt 0 0"><B>&nbsp;</B></P>
    <P STYLE="font: 10pt/10.4pt Georgia, Times, Serif; margin: 0.05pt 0 0 46.85pt">343,506,664</P></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">
    <P STYLE="font: 9.5pt Georgia, Times, Serif; margin: 0.5pt 0 0"><B>&nbsp;</B></P>
    <P STYLE="font: 10pt/10.4pt Georgia, Times, Serif; margin: 0.05pt 0 0 11.45pt">50.3%</P></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">
    <P STYLE="font: 9.5pt Georgia, Times, Serif; margin: 0.5pt 0 0"><B>&nbsp;</B></P>
    <P STYLE="font: 10pt/10.4pt Georgia, Times, Serif; margin: 0.05pt 0 0 46.9pt">343,506,664</P></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid">
    <P STYLE="font: 9.5pt Georgia, Times, Serif; margin: 0.5pt 0 0"><B>&nbsp;</B></P>
    <P STYLE="font: 10pt/10.4pt Georgia, Times, Serif; margin: 0.05pt 0 0 32.75pt">50.3%</P></TD></TR>
  </TABLE>

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<P STYLE="font: 9.5pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 13.5pt Georgia, Times, Serif; margin: 0.1pt 0 0"><B>&nbsp;</B></P>

<P STYLE="font: bold 12pt Arial, Helvetica, Sans-Serif; margin: 4.6pt 0 0 10.35pt">Reports and Statements / Unqualified Report on Special
Review</P>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 0.55pt 13.6pt 0 0"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 0.55pt 13.6pt 0 0"><B>Report on Review of Interim Financial Information</B></P>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 0.55pt 13.6pt 0 0"><B>&nbsp;</B></P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0 13.6pt 6pt 0; text-align: justify"><FONT STYLE="font-weight: normal">To the
Shareholders, Directors and Management of </FONT></P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0 13.6pt 6pt 0; text-align: justify"><FONT STYLE="font-weight: normal">Companhia
de Saneamento B&aacute;sico do Estado de S&atilde;o Paulo &#8211; SABESP</FONT></P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0 13.6pt 6pt 0; text-align: justify"><FONT STYLE="font-weight: normal">S&atilde;o
Paulo &#8211; SP</FONT></P>

<P STYLE="color: #4F2D7F; font: 10pt/110% Georgia, Times, Serif; margin: 0 13.6pt 1pt 0; text-align: justify"><FONT STYLE="font-weight: normal">&nbsp;</FONT></P>

<P STYLE="color: #4F2D7F; font: 10pt/110% Georgia, Times, Serif; margin: 0 13.6pt 6pt 0; text-align: justify"><FONT STYLE="font-weight: normal">Introduction</FONT></P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0 13.6pt 6pt 0; text-align: justify">We have reviewed the accompanying interim
financial information of Companhia de Saneamento B&aacute;sico do Estado de S&atilde;o Paulo (&#8220;Company&#8221;), included in the
Interim Financial Information Form (ITR) for the quarter ended September 30, 2021, which comprises the Statement of financial position
as of September 30, 2021 and the related income statement and statement of comprehensive income for the three and nine months then ended
and the statements of changes in equity and cash flows for the nine months then ended, including a summary of significant accounting policies
and other explanatory notes.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0 13.6pt 6pt 0; text-align: justify">Management is responsible for the preparation
of the interim financial information in accordance with Technical Pronouncement NBC TG - 21- Interim Financial Reporting and IAS 34 -
Interim Financial Reporting, issued by the International Accounting Standards Board (IASB), as well as for the presentation of such information
in accordance with the standards issued by the Brazilian Securities and Exchange Commission (CVM) applicable to the preparation of Interim
Financial Information (ITR). Our responsibility is to express a conclusion on this interim financial information based on our review.</P>

<P STYLE="color: #4F2D7F; font: 10pt/110% Georgia, Times, Serif; margin: 0 13.6pt 6pt 0; text-align: justify"><FONT STYLE="font-weight: normal">Scope
of Review</FONT></P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0 13.6pt 6pt 0; text-align: justify">We conducted our review in accordance with
Brazilian and international standards on review of interim financial information (NBC TR 2410 and ISRE 2410 - Review of Interim Financial
Information Performed by the Independent Auditor of the Entity). A review of interim financial information consists of making inquiries,
primarily of persons responsible for financial and accounting matters, and applying analytical and other review procedures. A review is
substantially less in scope than an audit conducted in accordance with the standards on auditing and consequently does not enable us to
obtain assurance that we would become aware of all significant matters that might be identified in an audit. Accordingly, we do not express
an audit opinion.</P>

<P STYLE="color: #4F2D7F; font: 10pt/110% Georgia, Times, Serif; margin: 0 13.6pt 6pt 0; text-align: justify"><FONT STYLE="font-weight: normal">Conclusion
on the interim financial information</FONT></P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0 13.6pt 6pt 0; text-align: justify"><FONT STYLE="font-weight: normal">Based
on our review, nothing has come to our attention that causes us to believe that the accompanying interim financial information included
in the Interim Financial Information Form (ITR) referred to above is not prepared, in all material respects, in accordance with NBC TG
&#8211; 21 and IAS 34 applicable to the preparation of interim financial information and presented in accordance with the standards issued
by the Brazilian Securities and Exchange Commission (CVM).</FONT></P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0 13.6pt 6pt 0; text-align: justify"><FONT STYLE="font-weight: normal">&nbsp;</FONT></P>

<P STYLE="color: #4F2D7F; font: 10pt/110% Georgia, Times, Serif; margin: 0 13.6pt 6pt 0; text-align: justify"><FONT STYLE="font-weight: normal">Other
matters</FONT></P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0 13.6pt 6pt 0; text-align: justify; color: #4F2D7F"><B>Statement of value added</B></P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0 13.6pt 6pt 0; text-align: justify">The quarterly information referred to above
includes statements of value added for the period of nine months ended September 30, 2021, prepared under the responsibility of the Company's
management and presented as supplementary information for the purposes of IAS 34. These statements were submitted to the same review procedures
in conjunction with the review of the Company's interim financial information in the order to conclude they are reconciliated to the interim
financial information and to the accounting records, as applicable, and whether the structure and content are in accordance with the criteria
established in the NBC TG 09 - Statement of Value Added. Based on our review, nothing has come to our attention that causes us to believe
that the accompanying statements of value added were not prepared, in all material respects, in accordance with the interim financial
information taken as a whole.</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0 13.6pt 6pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0 13.6pt 6pt 0; text-align: justify">S&atilde;o Paulo, November 11, 2021</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0 13.6pt 6pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0 13.6pt 0 0; text-align: justify">Nelson Fernandes Barreto Filho</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0 13.6pt 6pt 0; text-align: justify">CT CRC 1SP-151.079/O-0</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0 13.6pt 6pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0 13.6pt 0 0; text-align: justify">Grant Thornton Auditores Independentes</P>

<P STYLE="font: 10pt/110% Georgia, Times, Serif; margin: 0 13.6pt 6pt 0; text-align: justify">CRC 2SP-025.583/O-1</P>


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<P STYLE="font: 9.5pt Georgia, Times, Serif; margin: 0.55pt 13.6pt 0 0">&nbsp;</P>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 0.55pt 0 0"><B>&nbsp;</B></P>

<P STYLE="font: 9.5pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 13pt Arial MT,sans-serif; margin: 0.35pt 0 0">&nbsp;</P>

<P STYLE="font: bold 12pt Arial, Helvetica, Sans-Serif; margin: 4.6pt 0 0 10.35pt">Reports and Statements / Executive Officers&#8217;
Statement on the Financial Statements</P>

<P STYLE="font: 18.5pt Arial, Helvetica, Sans-Serif; margin: 0.45pt 0 0"><B>&nbsp;</B></P>

<P STYLE="font: 9pt/192% Arial MT,sans-serif; margin: 0 317.5pt 0 10.35pt">Executive Officers&#8217; Statement on the Quarterly Information
STATEMENT</P>

<P STYLE="font: 9pt/96% Arial MT,sans-serif; margin: 0.3pt 17.45pt 0 10.35pt; text-align: justify">The Executive Officers of Companhia
de Saneamento B&aacute;sico do Estado de S&atilde;o Paulo - SABESP, with Corporate Taxpayers&#8217; ID (CNPJ/MF) number 43.776.517/0001-80,
headquartered at Rua Costa Carvalho, n&ordm; 300, Pinheiros, S&atilde;o Paulo, declare that, according to paragraph 1 of article 25, item
VI of CVM Instruction 480, of December 7, 2009, that:</P>

<P STYLE="font: 8pt Arial MT,sans-serif; margin: 0.5pt 0 0">&nbsp;</P>

<P STYLE="font: 9pt/192% Arial MT,sans-serif; margin: 0 109.55pt 0 10.35pt; text-align: justify">They reviewed, discussed, and agreed
with the quarterly information for the period ended September 30, 2021. S&atilde;o Paulo, November 11, 2021.</P>

<P STYLE="font: 9pt Arial MT,sans-serif; margin: 0.05pt 0 0 10.35pt; text-align: justify">Companhia de Saneamento B&aacute;sico do Estado
de S&atilde;o Paulo &#8211; SABESP</P>

<P STYLE="font: 8.5pt Arial MT,sans-serif; margin: 0.15pt 0 0">&nbsp;</P>

<P STYLE="font: 9pt/96% Arial MT,sans-serif; margin-top: 0; margin-bottom: 0; margin-left: 10.35pt">Benedito Pinto Ferreira Braga Junior</P>

<P STYLE="font: 9pt/96% Arial MT,sans-serif; margin-top: 0; margin-bottom: 0; margin-left: 10.35pt">CEO</P>

<P STYLE="font: 8pt Arial MT,sans-serif; margin: 0.5pt 0 0">&nbsp;</P>

<P STYLE="font: 9pt/10.2pt Arial MT,sans-serif; margin: 0 0 0 10.35pt">Osvaldo Garcia</P>

<P STYLE="font: 9pt/10.2pt Arial MT,sans-serif; margin: 0 0 0 10.35pt">CFO and Investor Relations Officer</P>

<P STYLE="font: 8.5pt Arial MT,sans-serif; margin: 0.15pt 0 0">&nbsp;</P>

<P STYLE="font: 9pt/96% Arial MT,sans-serif; margin-top: 0; margin-bottom: 0; margin-left: 10.35pt">Adriano Candido Stringhini</P>

<P STYLE="font: 9pt/96% Arial MT,sans-serif; margin-top: 0; margin-bottom: 0; margin-left: 10.35pt">Corporate Management Officer</P>

<P STYLE="font: 8pt Arial MT,sans-serif; margin: 0.5pt 0 0">&nbsp;</P>

<P STYLE="font: 9pt/10.2pt Arial MT,sans-serif; margin: 0 0 0 10.35pt">Alceu Segamarchi Junior</P>

<P STYLE="font: 9pt/10.2pt Arial MT,sans-serif; margin: 0 0 0 10.35pt">Technology, Project and Environment Officer</P>

<P STYLE="font: 8.5pt Arial MT,sans-serif; margin: 0.15pt 0 0">&nbsp;</P>

<P STYLE="font: 9pt/96% Arial MT,sans-serif; margin-top: 0; margin-bottom: 0; margin-left: 10.35pt">Ricardo Daruiz Borsari</P>

<P STYLE="font: 9pt/96% Arial MT,sans-serif; margin-top: 0; margin-bottom: 0; margin-left: 10.35pt">Metropolitan Officer</P>

<P STYLE="font: 8.5pt Arial MT,sans-serif; margin: 0.15pt 0 0">&nbsp;</P>

<P STYLE="font: 9pt/96% Arial MT,sans-serif; margin-top: 0; margin-bottom: 0; margin-left: 10.35pt">Monica Ferreira do Amaral Porto</P>

<P STYLE="font: 9pt/96% Arial MT,sans-serif; margin-top: 0; margin-bottom: 0; margin-left: 10.35pt">Regional Systems Officer</P>

<P STYLE="font: 9pt/96% Arial MT,sans-serif; margin-top: 0; margin-bottom: 0; margin-left: 10.35pt">&nbsp;</P>

<P STYLE="font: 9pt/96% Arial MT,sans-serif; margin-top: 0; margin-bottom: 0; margin-left: 10.35pt">&nbsp;</P>

<P STYLE="font: 9pt/96% Arial MT,sans-serif; margin-top: 0; margin-bottom: 0; margin-left: 10.35pt">&nbsp;</P>


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<P STYLE="font: 9.5pt Georgia, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 13pt Arial MT,sans-serif; margin: 0.35pt 0 0">&nbsp;</P>

<P STYLE="font: bold 12pt/96% Arial, Helvetica, Sans-Serif; margin: 4.95pt 92.9pt 0 10.35pt">Reports and Statements / Executive Officers&#8217;
Statement on the Report of Independent Registered Public Accounting Firm</P>

<P STYLE="font: 9pt/192% Arial MT,sans-serif; margin: 8.4pt 262.9pt 0 10.35pt">Executive Officers&#8217; Statement on the Report of Independent
Registered Public Accounting Firm STATEMENT</P>

<P STYLE="font: 9pt/96% Arial MT,sans-serif; margin: 0.35pt 17.45pt 0 10.35pt; text-align: justify">The Executive Officers of Companhia
de Saneamento B&aacute;sico do Estado de S&atilde;o Paulo - SABESP, with Corporate Taxpayers&#8217; ID (CNPJ/MF) number 43.776.517/0001-80,
headquartered at Rua Costa Carvalho, n&ordm; 300, Pinheiros, S&atilde;o Paulo, declare that, according to paragraph 1 of article 25, item
V of CVM Instruction 480, of December 7, 2009:</P>

<P STYLE="font: 8.5pt Arial MT,sans-serif; margin: 0.1pt 0 0">&nbsp;</P>

<P STYLE="font: 9pt/96% Arial MT,sans-serif; margin: 0 55.8pt 0 10.35pt">They reviewed, discussed, and agreed with the Report of Independent
Registered Public Accounting Firm on the quarterly information for the period ended September 30, 2021.</P>

<P STYLE="font: 8pt Arial MT,sans-serif; margin: 0.5pt 0 0">&nbsp;</P>

<P STYLE="font: 9pt Arial MT,sans-serif; margin: 0 0 0 10.35pt">S&atilde;o Paulo, November 11, 2021.</P>

<P STYLE="font: 9pt/96% Arial MT,sans-serif; margin-top: 0; margin-bottom: 0; margin-left: 10.35pt">Companhia de Saneamento B&aacute;sico do Estado de S&atilde;o
Paulo &#8211; SABESP</P>

<P STYLE="font: 9pt/96% Arial MT,sans-serif; margin-top: 0; margin-bottom: 0; margin-left: 10.35pt">&nbsp;</P>

<P STYLE="font: 9pt/96% Arial MT,sans-serif; margin-top: 0; margin-bottom: 0; margin-left: 10.35pt">&nbsp;</P>

<P STYLE="font: 9pt/96% Arial MT,sans-serif; margin-top: 0; margin-bottom: 0; margin-left: 10.35pt">Benedito Pinto Ferreira Braga Junior</P>

<P STYLE="font: 9pt/10pt Arial MT,sans-serif; margin: 0 0 0 10.35pt">CEO</P>

<P STYLE="font: 8pt Arial MT,sans-serif; margin: 0.45pt 0 0">&nbsp;</P>

<P STYLE="font: 9pt/10.2pt Arial MT,sans-serif; margin: 0 0 0 10.35pt">Osvaldo Garcia</P>

<P STYLE="font: 9pt/10.2pt Arial MT,sans-serif; margin: 0 0 0 10.35pt">CFO and Investor Relations Officer</P>

<P STYLE="font: 8.5pt Arial MT,sans-serif; margin: 0.15pt 0 0">&nbsp;</P>

<P STYLE="font: 9pt/96% Arial MT,sans-serif; margin-top: 0; margin-bottom: 0; margin-left: 10.35pt">Adriano Candido Stringhini</P>

<P STYLE="font: 9pt/96% Arial MT,sans-serif; margin-top: 0; margin-bottom: 0; margin-left: 10.35pt">Corporate Management Officer</P>

<P STYLE="font: 8pt Arial MT,sans-serif; margin: 0.5pt 0 0">&nbsp;</P>

<P STYLE="font: 9pt/10.2pt Arial MT,sans-serif; margin: 0 0 0 10.35pt">Alceu Segamarchi Junior</P>

<P STYLE="font: 9pt/10.2pt Arial MT,sans-serif; margin: 0 0 0 10.35pt">Technology, Project and Environment Officer</P>

<P STYLE="font: 8.5pt Arial MT,sans-serif; margin: 0.1pt 0 0">&nbsp;</P>

<P STYLE="font: 9pt/96% Arial MT,sans-serif; margin-top: 0; margin-bottom: 0; margin-left: 10.35pt">Ricardo Daruiz Borsari</P>

<P STYLE="font: 9pt/96% Arial MT,sans-serif; margin-top: 0; margin-bottom: 0; margin-left: 10.35pt">Metropolitan Officer</P>

<P STYLE="font: 8.5pt Arial MT,sans-serif; margin: 0.15pt 0 0">&nbsp;</P>

<P STYLE="font: 9pt/96% Arial MT,sans-serif; margin-top: 0; margin-bottom: 0; margin-left: 10.35pt">Monica Ferreira do Amaral Porto</P>

<P STYLE="font: 9pt/96% Arial MT,sans-serif; margin-top: 0; margin-bottom: 0; margin-left: 10.35pt">Regional Systems Officer</P>



<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: 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;November 26, 2021</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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