    <SEC-DOCUMENT>0001292814-22-001639-index.html : 20220418
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    ACCESSION NUMBER:		0001292814-22-001639
    CONFORMED SUBMISSION TYPE:	6-K
    PUBLIC DOCUMENT COUNT:		6
    CONFORMED PERIOD OF REPORT:	20211231
    FILED AS OF DATE:		20220418
    DATE AS OF CHANGE:		20220418

    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]
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    		STATE OF INCORPORATION:			D5
    		FISCAL YEAR END:			1231

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    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-31317
    		FILM NUMBER:		22831005

    	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
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    Document 1 - file: sbsdf2021_6k.htm

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    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 2 - file: sbsdf20216k_001.jpg

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    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 3 - file: sbsdf20216k_002.jpg

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    <SEQUENCE>4
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    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 4 - file: sbsdf20216k_003.jpg

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    Document 5 - file: sbsdf20216k_004.jpg

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