<SEC-DOCUMENT>0001292814-19-001170.txt : 20190408
<SEC-HEADER>0001292814-19-001170.hdr.sgml : 20190408
<ACCEPTANCE-DATETIME>20190405191145
ACCESSION NUMBER:		0001292814-19-001170
CONFORMED SUBMISSION TYPE:	6-K
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20190630
FILED AS OF DATE:		20190408
DATE AS OF CHANGE:		20190405

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:		19736176

	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>sbs20190403_6k5.htm
<DESCRIPTION>FORM 6-K
<TEXT>

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

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

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

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<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>

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<DIV><FONT color=#000000 size=2 face="Times New Roman"><B>For&nbsp;April , 2019</B></FONT></DIV><FONT color=#000000 size=2 face="Times New Roman"><B>(Commission File No. 1-31317) </B></FONT></DIV>

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<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>

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<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>

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<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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<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>

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<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>

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<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="TEXT-ALIGN: center; MARGIN: 0in 0in 0pt" align=center><FONT lang=PT-BR style="FONT-SIZE: 10pt; LINE-HEIGHT: 150%" face=arial,sans-serif></FONT>&nbsp;</P>

<P style="TEXT-ALIGN: center; MARGIN: 0in 0in 0pt" align=center><FONT lang=PT-BR style="FONT-SIZE: 10pt; LINE-HEIGHT: 150%" face=arial,sans-serif></FONT>&nbsp;</P>

<P style="TEXT-ALIGN: center; MARGIN: 0in 0in 0pt" align=center><FONT face=verdana,sans-serif><FONT lang=EN-US style="FONT-SIZE: 9pt; LINE-HEIGHT: 150%" face=verdana,sans-serif>SUMMARY ANNUAL REPORT FROM THE STATUTORY AUDIT COMMITTEE - 2018</FONT></FONT></P>

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<P style="TEXT-ALIGN: justify; MARGIN: 0in 0in 0pt"><FONT lang=EN-US style="FONT-SIZE: 9pt; LINE-HEIGHT: 150%" face=verdana,sans-serif>To the Board of Directors of </FONT></P>

<P style="TEXT-ALIGN: justify; MARGIN: 0in 0in 0pt"><FONT lang=PT-BR style="FONT-SIZE: 9pt; LINE-HEIGHT: 150%" face=verdana,sans-serif>Companhia de Saneamento B&#225;sico do Estado de S&#227;o Paulo</FONT></P>

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<H1 style="PAGE-BREAK-AFTER: avoid; MARGIN: 24pt 0in 0in 0.5in; TEXT-INDENT: -0.25in"><B><FONT lang=EN-US style="FONT-SIZE: 9pt; LINE-HEIGHT: 150%" color=windowtext face=verdana,sans-serif>1.</FONT></B><B><FONT lang=EN-US style="FONT-SIZE: 7pt; LINE-HEIGHT: 150%" color=windowtext face="times new roman">&nbsp;&nbsp;&nbsp; </FONT></B><B><FONT lang=EN-US style="FONT-SIZE: 9pt; LINE-HEIGHT: 150%" color=windowtext face=verdana,sans-serif>PRESENTATION</FONT></B></H1>

<P style="TEXT-ALIGN: justify; MARGIN: 0in 0in 0pt"><FONT lang=EN-US style="FONT-SIZE: 9pt; LINE-HEIGHT: 150%" face=verdana,sans-serif>The Statutory Audit Committee (Committee) of Companhia de Saneamento B&#225;sico do Estado de S&#227;o Paulo - SABESP, established at the Board of Directors' Meeting held on June 26, 2006, is composed of three independent Board Members. In compliance with the US Securities and Exchange Commission (SEC), the Committee serves as the Audit Committee of Sabesp in accordance with the provisions of the Sarbanes-Oxley Act</FONT><I><FONT lang=EN-US style="FONT-SIZE: 9pt; LINE-HEIGHT: 150%" face=verdana,sans-serif>. </FONT></I></P>

<P style="TEXT-ALIGN: justify; MARGIN: 0in 0in 10pt"><FONT lang=EN-US style="FONT-SIZE: 9pt; LINE-HEIGHT: 150%" face=verdana,sans-serif>The Committee reports to the Board of Directors, and acts with autonomy and independence in the exercise of its functions, serving as an auxiliary and advisory body, without executive powers or attributions. The Committee&#8217;s functions and responsibilities are performed in compliance with the applicable legal statutory duties and defined in its Bylaws. The Committee&#8217;s responsibility is to review and monitor, within its supervisory capacity, the preparation and publication of financial and audit reports.</FONT></P>

<P style="TEXT-ALIGN: justify; MARGIN: 0in 0in 10pt"><FONT lang=EN-US style="FONT-SIZE: 9pt; LINE-HEIGHT: 150%" face=verdana,sans-serif>The Committee's assessments are based on information received from management, independent auditors, internal auditors, risk managers and internal controls and from the Committee&#8217;s own analyzes arising from their supervisory and monitoring activities.</FONT></P>

<P style="TEXT-ALIGN: justify; MARGIN: 0in 0in 10pt"><FONT lang=EN-US style="FONT-SIZE: 9pt; LINE-HEIGHT: 150%" face=verdana,sans-serif>At the Annual and Extraordinary Shareholders' Meeting held on April 27, 2018, Messrs. Ernesto Rubens Gelbcke and Lucas Navarro Prado were elected as independent members of the Board of Directors and Mr. Lu&#237;s Eduardo Alves de Assis was elected, by the minority shareholders in a separate vote, as a member of the Board of Directors. At the Board of Directors' Meeting held on June 21, 2018, members of the Statutory Audit Committee were elected, and Mr. Ernesto Rubens Gelbcke was appointed as a member of the Financial Specialist and Coordinator of the Committee.</FONT></P>

<H1 style="PAGE-BREAK-AFTER: avoid; MARGIN: 24pt 0in 0in 0.5in; TEXT-INDENT: -0.25in"><B><FONT lang=EN-US style="FONT-SIZE: 9pt; LINE-HEIGHT: 150%" color=windowtext face=verdana,sans-serif>2.</FONT></B><B><FONT lang=EN-US style="FONT-SIZE: 7pt; LINE-HEIGHT: 150%" color=windowtext face="times new roman">&nbsp;&nbsp;&nbsp; </FONT></B><B><FONT lang=EN-US style="FONT-SIZE: 9pt; LINE-HEIGHT: 150%" color=windowtext face=verdana,sans-serif>ACTIVITIES CARRIED OUT IN THE PERIOD</FONT></B></H1>

<P style="TEXT-ALIGN: justify; MARGIN: 6pt 0in"><FONT lang=EN-US style="FONT-SIZE: 9pt; LINE-HEIGHT: 150%" face=verdana,sans-serif>During the period from March 28, 2018 to March 28, 2019, the Committee held 24 formal meetings with directors, superintendents, managers, other employees, internal auditors and independent auditors. The main activities of the Committee were as follows:</FONT></P>

<P style="TEXT-ALIGN: justify; MARGIN: 6pt 0in 6pt 0.5in; TEXT-INDENT: -0.25in"><FONT lang=EN-US style="FONT-SIZE: 9pt; LINE-HEIGHT: 150%" face=symbol>&#183;</FONT><FONT lang=EN-US style="FONT-SIZE: 7pt; LINE-HEIGHT: 150%" face="times new roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT><FONT lang=EN-US style="FONT-SIZE: 9pt; LINE-HEIGHT: 150%" face=verdana,sans-serif>Review of the Internal Rules of the Audit Committee;</FONT></P>

<P style="TEXT-ALIGN: justify; MARGIN: 6pt 0in 6pt 0.5in; TEXT-INDENT: -0.25in"><FONT lang=EN-US style="FONT-SIZE: 9pt; LINE-HEIGHT: 150%" face=symbol>&#183;</FONT><FONT lang=EN-US style="FONT-SIZE: 7pt; LINE-HEIGHT: 150%" face="times new roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT><FONT lang=EN-US style="FONT-SIZE: 9pt; LINE-HEIGHT: 150%" face=verdana,sans-serif>Review, approval and supervision of the work plan of the Internal Audit;</FONT></P>

<P style="TEXT-ALIGN: justify; MARGIN: 6pt 0in 6pt 0.5in; TEXT-INDENT: -0.25in"><FONT lang=EN-US style="FONT-SIZE: 9pt; LINE-HEIGHT: 150%" face=symbol>&#183;</FONT><FONT lang=EN-US style="FONT-SIZE: 7pt; LINE-HEIGHT: 150%" face="times new roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT><FONT lang=EN-US style="FONT-SIZE: 9pt; LINE-HEIGHT: 150%" face=verdana,sans-serif>Monitoring of judicial provisions and contingencies;</FONT></P>

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<P style="TEXT-ALIGN: center; MARGIN: 0in 0in 0pt" align=center><FONT face=verdana,sans-serif><FONT lang=EN-US style="FONT-SIZE: 9pt; LINE-HEIGHT: 150%" face=verdana,sans-serif>SUMMARY ANNUAL REPORT FROM THE STATUTORY AUDIT COMMITTEE - 2018</FONT></FONT></P>

<P style="TEXT-ALIGN: center; MARGIN: 0in 0in 10pt" align=center><FONT><FONT lang=EN-US style="FONT-SIZE: 11pt; LINE-HEIGHT: 150%" face=Calibri,sans-serif></FONT></FONT>&nbsp;</P></DIV>

<P style="TEXT-ALIGN: justify; MARGIN: 6pt 0in 6pt 0.5in; TEXT-INDENT: -0.25in"><FONT lang=EN-US style="FONT-SIZE: 9pt; LINE-HEIGHT: 150%" face=symbol>&#183;</FONT><FONT lang=EN-US style="FONT-SIZE: 7pt; LINE-HEIGHT: 150%" face="times new roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT><FONT lang=EN-US style="FONT-SIZE: 9pt; LINE-HEIGHT: 150%" face=verdana,sans-serif>Monitoring of corporate risk management;</FONT></P>

<P style="TEXT-ALIGN: justify; MARGIN: 6pt 0in 6pt 0.5in; TEXT-INDENT: -0.25in"><FONT lang=EN-US style="FONT-SIZE: 9pt; LINE-HEIGHT: 150%" face=symbol>&#183;</FONT><FONT lang=EN-US style="FONT-SIZE: 7pt; LINE-HEIGHT: 150%" face="times new roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT><FONT lang=EN-US style="FONT-SIZE: 9pt; LINE-HEIGHT: 150%" face=verdana,sans-serif>Monitoring of compliance activities;</FONT></P>

<P style="TEXT-ALIGN: justify; MARGIN: 6pt 0in 6pt 0.5in; TEXT-INDENT: -0.25in"><FONT lang=EN-US style="FONT-SIZE: 9pt; LINE-HEIGHT: 150%" face=symbol>&#183;</FONT><FONT lang=EN-US style="FONT-SIZE: 7pt; LINE-HEIGHT: 150%" face="times new roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT><FONT lang=EN-US style="FONT-SIZE: 9pt; LINE-HEIGHT: 150%" face=verdana,sans-serif>Evaluation and monitoring of the effectiveness of Internal Controls;</FONT></P>

<P style="TEXT-ALIGN: justify; MARGIN: 6pt 0in 6pt 0.5in; TEXT-INDENT: -0.25in"><FONT lang=EN-US style="FONT-SIZE: 9pt; LINE-HEIGHT: 150%" face=symbol>&#183;</FONT><FONT lang=EN-US style="FONT-SIZE: 7pt; LINE-HEIGHT: 150%" face="times new roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT><FONT lang=EN-US style="FONT-SIZE: 9pt; LINE-HEIGHT: 150%" face=verdana,sans-serif>Whistleblowing Channel: Follow-up of investigations and complaints;</FONT></P>

<P style="TEXT-ALIGN: justify; MARGIN: 6pt 0in 6pt 0.5in; TEXT-INDENT: -0.25in"><FONT lang=EN-US style="FONT-SIZE: 9pt; LINE-HEIGHT: 150%" face=symbol>&#183;</FONT><FONT lang=EN-US style="FONT-SIZE: 7pt; LINE-HEIGHT: 150%" face="times new roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT><FONT lang=EN-US style="FONT-SIZE: 9pt; LINE-HEIGHT: 150%" face=verdana,sans-serif>Performance follow-up of independent auditors;</FONT></P>

<P style="TEXT-ALIGN: justify; MARGIN: 6pt 0in 6pt 0.5in; TEXT-INDENT: -0.25in"><FONT lang=EN-US style="FONT-SIZE: 9pt; LINE-HEIGHT: 150%" face=symbol>&#183;</FONT><FONT lang=EN-US style="FONT-SIZE: 7pt; LINE-HEIGHT: 150%" face="times new roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT><FONT lang=EN-US style="FONT-SIZE: 9pt; LINE-HEIGHT: 150%" face=verdana,sans-serif>Follow-up on the activities carried out by the Ethics Committee;</FONT></P>

<P style="TEXT-ALIGN: justify; MARGIN: 6pt 0in 6pt 0.5in; TEXT-INDENT: -0.25in"><FONT lang=EN-US style="FONT-SIZE: 9pt; LINE-HEIGHT: 150%" face=symbol>&#183;</FONT><FONT lang=EN-US style="FONT-SIZE: 7pt; LINE-HEIGHT: 150%" face="times new roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT><FONT lang=EN-US style="FONT-SIZE: 9pt; LINE-HEIGHT: 150%" face=verdana,sans-serif>Monitoring the implementation of action plans resulting from the recommendations made by the Internal Audit and Independent Audit;</FONT></P>

<P style="TEXT-ALIGN: justify; MARGIN: 6pt 0in 6pt 0.5in; TEXT-INDENT: -0.25in"><FONT lang=EN-US style="FONT-SIZE: 9pt; LINE-HEIGHT: 150%" face=symbol>&#183;</FONT><FONT lang=EN-US style="FONT-SIZE: 7pt; LINE-HEIGHT: 150%" face="times new roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT><FONT lang=EN-US style="FONT-SIZE: 9pt; LINE-HEIGHT: 150%" face=verdana,sans-serif>Identification and recommendation for improvements in the processes, arising during discussions with the various areas convened, as well as monitoring the implementation of these recommendations;</FONT></P>

<P style="TEXT-ALIGN: justify; MARGIN: 6pt 0in 6pt 0.5in; TEXT-INDENT: -0.25in"><FONT lang=EN-US style="FONT-SIZE: 9pt; LINE-HEIGHT: 150%" face=symbol>&#183;</FONT><FONT lang=EN-US style="FONT-SIZE: 7pt; LINE-HEIGHT: 150%" face="times new roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT><FONT lang=EN-US style="FONT-SIZE: 9pt; LINE-HEIGHT: 150%" face=verdana,sans-serif>Revision of the Sustainability Report;</FONT></P>

<P style="TEXT-ALIGN: justify; MARGIN: 6pt 0in 6pt 0.5in; TEXT-INDENT: -0.25in"><FONT lang=EN-US style="FONT-SIZE: 9pt; LINE-HEIGHT: 150%" face=symbol>&#183;</FONT><FONT lang=EN-US style="FONT-SIZE: 7pt; LINE-HEIGHT: 150%" face="times new roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT><FONT lang=EN-US style="FONT-SIZE: 9pt; LINE-HEIGHT: 150%" face=verdana,sans-serif>Follow-up on the preparation process for financial statements; and</FONT></P>

<P style="TEXT-ALIGN: justify; MARGIN: 6pt 0in 6pt 0.5in; TEXT-INDENT: -0.25in"><FONT lang=EN-US style="FONT-SIZE: 9pt; LINE-HEIGHT: 150%" face=symbol>&#183;</FONT><FONT lang=EN-US style="FONT-SIZE: 7pt; LINE-HEIGHT: 150%" face="times new roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT><FONT lang=EN-US style="FONT-SIZE: 9pt; LINE-HEIGHT: 150%" face=verdana,sans-serif>Revision of the Quarterly Information - ITRs, the Annual Management Report, the Financial Statements, the Reference Form, the 20-F Form and the Brazilian Code of Corporate Governance.</FONT></P>

<P style="TEXT-ALIGN: justify; MARGIN: 0in 0in 10pt"><FONT lang=EN-US style="FONT-SIZE: 9pt; LINE-HEIGHT: 150%" face=verdana,sans-serif>Minutes of Committee meetings are distributed at the Board of Directors&#8217; meeting, at which time the Coordinator and/or another member of the Committee reports and emphasizes to the other Directors, when deemed appropriate, the relevant and pertinent matters identified in the Committee's activities and recorded in such meeting minutes. </FONT></P>

<P style="TEXT-ALIGN: justify; MARGIN: 0in 0in 10pt"><FONT lang=EN-US style="FONT-SIZE: 9pt; LINE-HEIGHT: 150%" face=verdana,sans-serif>The Committee held three meetings with the Sabesp&#8217;s Audit Committee to review the Quarterly Information for the quarters ended June 30, September 30, 2018 and the Financial Statements for the year ended December 31, 2018.</FONT></P>

<H1 style="PAGE-BREAK-AFTER: avoid; MARGIN: 24pt 0in 0in 0.5in; TEXT-INDENT: -0.25in"><B><FONT lang=EN-US style="FONT-SIZE: 9pt; LINE-HEIGHT: 150%" color=windowtext face=verdana,sans-serif>3.</FONT></B><B><FONT lang=EN-US style="FONT-SIZE: 7pt; LINE-HEIGHT: 150%" color=windowtext face="times new roman">&nbsp;&nbsp;&nbsp; </FONT></B><B><FONT lang=EN-US style="FONT-SIZE: 9pt; LINE-HEIGHT: 150%" color=windowtext face=verdana,sans-serif>RECOMMENDATIONS FOR IMPROVEMENTS IN BUSINESS PROCESSES</FONT></B></H1>

<P style="TEXT-ALIGN: justify; MARGIN: 0in 0in 10pt"><FONT lang=EN-US style="FONT-SIZE: 9pt; LINE-HEIGHT: 150%" face=verdana,sans-serif>In the discussions established at the meetings held with the managers of the various areas of the Company during the referred period, several recommendations were made for corrective actions regarding the Company&#8217;s control and management processes. All pending and executed corrective actions are duly recorded in the minutes. The Committee periodically monitors the implementation of these improvements and suggested adjustments.</FONT></P>

<H1 style="PAGE-BREAK-AFTER: avoid; MARGIN: 24pt 0in 0in 0.5in; TEXT-INDENT: -0.25in"><B><FONT lang=EN-US style="FONT-SIZE: 9pt; LINE-HEIGHT: 150%" color=windowtext face=verdana,sans-serif>4.</FONT></B><B><FONT lang=EN-US style="FONT-SIZE: 7pt; LINE-HEIGHT: 150%" color=windowtext face="times new roman">&nbsp;&nbsp;&nbsp; </FONT></B><B><FONT lang=EN-US style="FONT-SIZE: 9pt; LINE-HEIGHT: 150%" color=windowtext face=verdana,sans-serif>EVALUATION OF THE EFFECTIVENESS OF INTERNAL CONTROL SYSTEMS</FONT></B></H1>

<P style="TEXT-ALIGN: justify; MARGIN: 0in 0in 10pt"><FONT lang=EN-US style="FONT-SIZE: 9pt; LINE-HEIGHT: 150%" face=verdana,sans-serif>The methodology adopted by Sabesp for the analysis of internal controls is in line with the structure of the Internal Control - Integrated Framework, defined by The Committee of Sponsoring Organizations of the Treadway Commission (COSO), and the Sarbanes-Oxley Act.</FONT></P>

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<p align=center style="margin-bottom:.0001pt;margin-left:0in;margin-right:0in;margin-top:0in;text-align:center;"><font face=arial,sans-serif lang=PT-BR style="font-size:10.0pt;line-height:150%;">&nbsp;</font></p>

<p align=center style="margin-bottom:.0001pt;margin-left:0in;margin-right:0in;margin-top:0in;text-align:center;"><font face=verdana,sans-serif style=""><font face=verdana,sans-serif lang=EN-US style="font-size:9.0pt;line-height:150%;">SUMMARY ANNUAL REPORT FROM THE STATUTORY AUDIT
COMMITTEE - 2018</font></font></p>

<p align=center style="margin-bottom:10.0pt;margin-left:0in;margin-right:0in;margin-top:0in;text-align:center;"><font style=""><font face=Calibri,sans-serif lang=EN-US style="font-size:11.0pt;line-height:150%;">&nbsp;</font></font></p>


</DIV>
<p style="margin-bottom:10.0pt;margin-left:0in;margin-right:0in;margin-top:0in;text-align:justify;"><font face=verdana,sans-serif lang=EN-US style="font-size:9.0pt;line-height:150%;">Sabesp's management is responsible for the
design and implementation of policies, procedures, processes and practices of
internal controls to safeguard assets, timely recognition of liabilities,
adherence to rules and the integrity and accuracy of information.</font></p>

<p style="margin-bottom:10.0pt;margin-left:0in;margin-right:0in;margin-top:0in;text-align:justify;"><font face=verdana,sans-serif lang=EN-US style="font-size:9.0pt;line-height:150%;">The
Internal Audit is responsible for assessing the degree of compliance by all of
Sabesp&#8217;s departments in relation to internal controls procedures and practices
and that being effectively applied.</font></p>

<h1 style="margin-bottom:0in;margin-left:.5in;margin-right:0in;margin-top:24.0pt;page-break-after:avoid;text-indent:-.25in;"><b><font color=windowtext face=verdana,sans-serif lang=EN-US style="font-size:9.0pt;line-height:150%;">5.</font></b><b><font color=windowtext face="times new roman" lang=EN-US style="font-size:7.0pt;line-height:150%;">&nbsp;&nbsp;&nbsp;
</font></b><b><font color=windowtext face=verdana,sans-serif lang=EN-US style="font-size:9.0pt;line-height:150%;">EVALUATION OF THE
EFFECTIVENESS OF INDEPENDENT AND INTERNAL AUDITS</font></b></h1>

<p style="margin-bottom:10.0pt;margin-left:0in;margin-right:0in;margin-top:0in;text-align:justify;"><font face=verdana,sans-serif lang=EN-US style="background:white;font-size:9.0pt;line-height:150%;">The Committee maintains a regular communication channel with
internal and independent auditors, allowing for wide discussions on the results
of its work, accounting aspects and relevant internal controls and, therefore,
assesses as being fully satisfied with the volume and quality of the
information provided by these professionals, who support their opinion on the
adequacy and integrity of internal control systems and financial statements. In
addition, no situations were identified that could affect the objectivity and
independence and/or the autonomy of the independent and internal auditors.</font></p>

<p style="margin-bottom:10.0pt;margin-left:0in;margin-right:0in;margin-top:0in;text-align:justify;"><font face=verdana,sans-serif lang=EN-US style="font-size:9.0pt;line-height:150%;">KPMG
Auditores Independentes is the audit firm responsible for examining the
financial statements and issuing an opinion on the preparation of such
statements, in compliance with the accounting practices adopted in Brazil and
the International Financial Reporting Standards (IFRS) issued by the
International Accounting Standards Board (IASB).</font></p>

<p style="margin-bottom:10.0pt;margin-left:0in;margin-right:0in;margin-top:0in;text-align:justify;"><font face=verdana,sans-serif lang=EN-US style="background:white;font-size:9.0pt;line-height:150%;">The Committee monitored the activities carried out by the
Internal and the Independent Audit, both through regular meetings and through
the review of the reports they issued. As a result, the Committee positively
evaluates the coverage and quality of the work carried out by the Internal and
Independent Auditors regarding the financial statements for the fiscal year
ended December 31, 2018.</font></p>

<h1 style="margin-bottom:0in;margin-left:.5in;margin-right:0in;margin-top:24.0pt;page-break-after:avoid;text-indent:-.25in;"><b><font color=windowtext face=verdana,sans-serif lang=EN-US style="font-size:9.0pt;line-height:150%;">6.</font></b><b><font color=windowtext face="times new roman" lang=EN-US style="font-size:7.0pt;line-height:150%;">&nbsp;&nbsp;&nbsp;
</font></b><b><font color=windowtext face=verdana,sans-serif lang=EN-US style="font-size:9.0pt;line-height:150%;">ADEQUACY OF THE INTERNAL
AUDIT&#8217;S STRUCTURE AND BUDGET</font></b></h1>

<p style="margin-bottom:10.0pt;margin-left:0in;margin-right:0in;margin-top:0in;text-align:justify;"><font face=verdana,sans-serif lang=EN-US style="background:white;font-size:9.0pt;line-height:150%;">The Audit Committee evaluated the structure and budget of the
Internal Audit and considered it adequate for the team to carry out their
functions.</font></p>

<h1 style="margin-bottom:0in;margin-left:.5in;margin-right:0in;margin-top:24.0pt;page-break-after:avoid;text-indent:-.25in;"><b><font color=windowtext face=verdana,sans-serif lang=EN-US style="font-size:9.0pt;line-height:150%;">7.</font></b><b><font color=windowtext face="times new roman" lang=EN-US style="font-size:7.0pt;line-height:150%;">&nbsp;&nbsp;&nbsp;
</font></b><b><font color=windowtext face=verdana,sans-serif lang=EN-US style="font-size:9.0pt;line-height:150%;">&#160;QUALITY ASSESSMENT OF
FINANCIAL STATEMENTS</font></b></h1>

<p style="margin-bottom:10.0pt;margin-left:0in;margin-right:0in;margin-top:0in;text-align:justify;"><font face=verdana,sans-serif lang=EN-US style="font-size:9.0pt;line-height:150%;">Management
is responsible for defining and implementing information systems that produce
Sabesp&#8217;s financial statements and are in compliance with corporate law,
accounting practices, the rules of the Brazilian Securities and Exchange
Commission (CVM) and the </font><font face=verdana,sans-serif lang=EN-US style="font-size:9.0pt;line-height:150%;">International Financial
Reporting Standards (IFRS) issued by the International Accounting Standards
Board (IASB) and, as the Company is listed on the New York Stock Exchange
(NYSE), in compliance with requirements by the US Securities and Exchange
Commission (SEC) and the Sarbanes-Oxley Act.</font></p>
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 <p align=right style="margin:0in;margin-bottom:.0001pt;text-align:right;"><font style="display:none;"><font face=Calibri,sans-serif lang=PT-BR style="font-size:11.0pt;"></font></font><font face=Calibri,sans-serif lang=PT-BR style="font-size:11.0pt;">3</font><font style="display:none;"><font face=Calibri,sans-serif lang=PT-BR style="font-size:11.0pt;"></font></font></p>


<p style="margin:0in;margin-bottom:.0001pt;"><font face=Calibri,sans-serif lang=PT-BR style="font-size:11.0pt;">&nbsp;</font></p>


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<p align=center style="margin-bottom:.0001pt;margin-left:0in;margin-right:0in;margin-top:0in;text-align:center;"><font face=arial,sans-serif lang=PT-BR style="font-size:10.0pt;line-height:150%;">&nbsp;</font></p>

<p align=center style="margin-bottom:.0001pt;margin-left:0in;margin-right:0in;margin-top:0in;text-align:center;"><font face=arial,sans-serif lang=PT-BR style="font-size:10.0pt;line-height:150%;">&nbsp;</font></p>

<p align=center style="margin-bottom:.0001pt;margin-left:0in;margin-right:0in;margin-top:0in;text-align:center;"><font face=arial,sans-serif lang=PT-BR style="font-size:10.0pt;line-height:150%;">&nbsp;</font></p>

<p align=center style="margin-bottom:.0001pt;margin-left:0in;margin-right:0in;margin-top:0in;text-align:center;"><font face=verdana,sans-serif style=""><font face=verdana,sans-serif lang=EN-US style="font-size:9.0pt;line-height:150%;">SUMMARY ANNUAL REPORT FROM THE STATUTORY AUDIT
COMMITTEE - 2018</font></font></p>

<p align=center style="margin-bottom:10.0pt;margin-left:0in;margin-right:0in;margin-top:0in;text-align:center;"><font style=""><font face=Calibri,sans-serif lang=EN-US style="font-size:11.0pt;line-height:150%;">&nbsp;</font></font></p>


</DIV>


<p style="margin-bottom:10.0pt;margin-left:0in;margin-right:0in;margin-top:0in;text-align:justify;"><font face=verdana,sans-serif lang=EN-US style="font-size:9.0pt;line-height:150%;">The
Committee met on several occasions with the employees responsible for the
accounting areas to analyze the procedures involved the preparation process of
the financial statements for the fiscal year ended December 31, 2018. </font></p>

<p style="margin-bottom:10.0pt;margin-left:0in;margin-right:0in;margin-top:0in;text-align:justify;"><font face=verdana,sans-serif lang=EN-US style="font-size:9.0pt;line-height:150%;">Finally,
the Committee discussed with the independent auditors the results of the works
and its conclusions on the audit of these financial statements and issued a
report without reservations. The main points discussed were also related to the
accounting practices adopted in Brazil and with recommendations and other
reports regarding internal controls and presentation of the financial
statements. </font></p>

<p style="margin-bottom:10.0pt;margin-left:0in;margin-right:0in;margin-top:0in;text-align:justify;"><font face=verdana,sans-serif lang=EN-US style="font-size:9.0pt;line-height:150%;">The
Committee verified that the financial statements are appropriate in accordance
with the accounting practices and Brazilian corporate law, as well as the rules
of the Brazilian Securities and Exchange Commission (CVM) and the International
Financial Reporting Standards (IFRS) issued by the International Accounting
Standards Board - IASB, and the standards issued by the SEC and the
Sarbanes-Oxley Act. </font></p>

<h1 style="margin-bottom:0in;margin-left:.5in;margin-right:0in;margin-top:24.0pt;page-break-after:avoid;text-indent:-.25in;"><b><font color=windowtext face=verdana,sans-serif lang=EN-US style="font-size:9.0pt;line-height:150%;">8.</font></b><b><font color=windowtext face="times new roman" lang=EN-US style="font-size:7.0pt;line-height:150%;">&nbsp;&nbsp;&nbsp;
</font></b><b><font color=windowtext face=verdana,sans-serif lang=EN-US style="font-size:9.0pt;line-height:150%;">CONCLUSIONS AND
RECOMMENDATIONS </font></b></h1>

<p style="margin-bottom:10.0pt;margin-left:0in;margin-right:0in;margin-top:0in;text-align:justify;"><font face=verdana,sans-serif lang=EN-US style="font-size:9.0pt;line-height:150%;">During
the course of the works, the Committee did not identify any situation that
could affect KPMG's objectivity and independence with respect to its
attributions with Sabesp. Accordingly, in accordance with the Internal
Regulations of the Audit Committee, the Committee informs the Board of
Directors that it is not aware of any type of relationship between KPMG and
Sabesp that may have affected its independence in the execution of the
independent audit of the financial statements closed on December 31, 2018.</font></p>

<p style="margin-bottom:10.0pt;margin-left:0in;margin-right:0in;margin-top:0in;text-align:justify;"><font face=verdana,sans-serif lang=EN-US style="font-size:9.0pt;line-height:150%;">It
is also recorded that no situation of significant divergence was identified
between the Sabesp&#8217;s Management, the Independent Auditors of KPMG and the Audit
Committee itself in relation to the Financial Statements for the year ended
December 31, 2018.</font></p>

<p style="margin-bottom:6.0pt;margin-left:0in;margin-right:0in;margin-top:6.0pt;text-align:justify;"><font face=verdana,sans-serif lang=EN-US style="font-size:9.0pt;line-height:150%;">The
opinions and judgments of the Committee depend on the information presented by
Sabesp, in particular information on Management, the Accounting department, the
Legal, Internal Audit, Risk Management and Compliance department and other
departments, as necessary, in addition to information on the Independent
Auditors. In this sense, the Committee believes that all pertinent matters were
adequately disclosed in the Financial Statements for the fiscal year ended
December 31, 2018, accompanied by the Independent </font>
<FONT lang=EN-US style="FONT-SIZE: 9pt; LINE-HEIGHT: 150%" face=verdana,sans-serif>Auditors' Report issued without reservations, and, therefore, recommended the approval of said Financial Statements by the Board of Directors.</FONT></p>
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<P style="TEXT-ALIGN: center; MARGIN: 0in 0in 0pt" align=center><FONT lang=PT-BR style="FONT-SIZE: 10pt; LINE-HEIGHT: 150%" face=arial,sans-serif></FONT>&nbsp;</P>

<P style="TEXT-ALIGN: center; MARGIN: 0in 0in 0pt" align=center><FONT lang=PT-BR style="FONT-SIZE: 10pt; LINE-HEIGHT: 150%" face=arial,sans-serif></FONT>&nbsp;</P>

<P style="TEXT-ALIGN: center; MARGIN: 0in 0in 0pt" align=center><FONT face=verdana,sans-serif><FONT lang=EN-US style="FONT-SIZE: 9pt; LINE-HEIGHT: 150%" face=verdana,sans-serif>SUMMARY ANNUAL REPORT FROM THE STATUTORY AUDIT COMMITTEE - 2018</FONT></FONT></P>

<P style="TEXT-ALIGN: center; MARGIN: 0in 0in 10pt" align=center><FONT><FONT lang=EN-US style="FONT-SIZE: 11pt; LINE-HEIGHT: 150%" face=Calibri,sans-serif></FONT></FONT>&nbsp;</P></DIV>




<P style="TEXT-ALIGN: justify; MARGIN: 6pt 0in"><FONT lang=EN-US style="FONT-SIZE: 9pt; LINE-HEIGHT: 150%" face=verdana,sans-serif></FONT>&nbsp;</P>

<P style="TEXT-ALIGN: justify; MARGIN: 0in 0in 10pt"><FONT lang=EN-US style="FONT-SIZE: 9pt; LINE-HEIGHT: 150%" face=verdana,sans-serif>S&#227;o Paulo, March 28, 2019.</FONT></P>

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   <P style="TEXT-ALIGN: center; MARGIN: 0in 0in 0pt" align=center><B><FONT lang=EN-US style="FONT-SIZE: 9pt; LINE-HEIGHT: normal" face=verdana,sans-serif></FONT></B>&nbsp;</P>

   <P style="TEXT-ALIGN: center; MARGIN: 0in 0in 0pt" align=center><B><FONT lang=EN-US style="FONT-SIZE: 9pt; LINE-HEIGHT: normal" face=verdana,sans-serif>Ernesto Rubens Gelbcke</FONT></B></P>

   <P style="TEXT-ALIGN: center; MARGIN: 0in 0in 0pt" align=center><I><FONT lang=EN-US style="FONT-SIZE: 9pt; LINE-HEIGHT: normal" face=verdana,sans-serif>Coordinator and <BR>Financial Specialist</FONT></I></P></TD>

   <TD style="HEIGHT: 12.2pt; PADDING-BOTTOM: 0in; PADDING-TOP: 0in; PADDING-LEFT: 5.4pt; PADDING-RIGHT: 5.4pt" width="34%">

   <P style="TEXT-ALIGN: center; MARGIN: 0in 0in 0pt" align=center><B><FONT lang=EN-US style="FONT-SIZE: 9pt; LINE-HEIGHT: normal" face=verdana,sans-serif>Lucas Navarro Prado</FONT></B></P>

   <P style="TEXT-ALIGN: center; MARGIN: 0in 0in 0pt" align=center><I><FONT lang=EN-US style="FONT-SIZE: 9pt; LINE-HEIGHT: normal" face=verdana,sans-serif>Member</FONT></I></P></TD>

   <TD style="HEIGHT: 12.2pt; PADDING-BOTTOM: 0in; PADDING-TOP: 0in; PADDING-LEFT: 5.4pt; PADDING-RIGHT: 5.4pt" width="35%">

   <P style="TEXT-ALIGN: center; MARGIN: 0in 0in 0pt" align=center><B><FONT style="FONT-SIZE: 9pt; LINE-HEIGHT: normal" face=verdana,sans-serif>Lu&#237;s Eduardo A. de Assis</FONT></B></P>

   <P style="TEXT-ALIGN: center; MARGIN: 0in 0in 0pt" align=center><I><FONT style="FONT-SIZE: 9pt; LINE-HEIGHT: normal" face=verdana,sans-serif>Member</FONT></I></P></TD></TR></TABLE></DIV>

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<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></U></B></FONT>

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<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;April 3, 2019</FONT></DIV>

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   <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>

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   <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>Rui de Britto &#193;lvares Affonso</FONT>&nbsp;&nbsp;&nbsp;&nbsp;

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   <DIV align=left><FONT color=#000000 size=2 face="Times New Roman">Name: Rui de Britto &#193;lvares Affonso </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>

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<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>

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