PR Newswire | Jan 15, 2021 07:11PM EST

01/15 18:10 CST

Sabesp - Material Fact SAO PAULO, Jan. 15, 2021

SAO PAULO, Jan. 15, 2021 /PRNewswire/ -- Companhia de Saneamento Bsico do Estado de Sao Paulo - Sabesp ("Sabesp" or "Company"), in compliance with the provisions of Article 157, Paragraph 4, of Law 6,404/76 and the provisions of Instruction 358 of the Brazilian Securities and Exchange Commission ("CVM"), dated January 3, 2002, as amended, hereby informs its shareholders and the market in general that the Sao Paulo State Energy and Sanitation Regulatory Agency (ARSESP - Agncia Reguladora de Saneamento e Energia do Estado de Sao Paulo) published Resolutions N 1,114 and N 1,115: (i) changing the schedule of the Third Ordinary Tariff Revision of Sabesp; and (ii) changing to the Tariff Structure schedule, as follows:

Resolution N 1,114 - Third Ordinary Tariff Revision

Stage Event Period

9 Disclosure of the Preliminary Technical Note - Calculation of P0 January 28, 2021

10 Public consultation and public hearing - Calculation of P0 January 29, to March 1, 2021

11 Disclosure of the Detailed Report, Final Technical Note and Resolution April 9, 2021 regarding P0

Resolution N 1,115 - Tariff Structure Schedule

Stage Event Period*

Disclosure of the Preliminary Technical Note with the Up to January 28,4 proposal for the new tariff structure and the 2021 respective implementation plan

Hold of the public consultation and public hearing on From January 29 to5 the Preliminary Technical Note published according to March 8, 2021 Stage 4

Analysis of the contributions received, publication6 of the Final Technical Note, of the Detailed Report Up to April 9, 2021 and of the Resolution on the tariff structure approved by Arsesp

*The indicated periods (except for stage 5) may be anticipated as the technical work progresses.

The Resolutions mentioned are available on ARSESP's and Sabesp's websites, in the Investor Relations page.

The Company will keep the market informed on the developments concerning this matter.

IR Contacts: Mario Arruda Sampaio - (55 11) 3388-8664 (maasampaio@sabesp.com.br) Angela Beatriz Airoldi - (55 11) 3388-8793 (abairoldi@sabesp.com.br)

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SOURCE Sabesp