COMMISSION OF SECURITIES AND EXCHANGE COMMISSIONS

Rua Sete de Setembro, 111/2-5° and 23-34° Floors, Center, Rio de Janeiro/RJ – ZIP: 20050-901 – Brazil • Tel.: (21) 3554-8686 Rua Cincinato Braga, 340/2°, 3° and 4° Floors, Bela Vista, São Paulo/ SP – ZIP: 01333-010 – Brazil • Tel.: (11) 2146-2000 SCN Q.02 – Bl. A – Ed. Corporate Financial Center, 4th Floor, S.404, Brasília/DF – ZIP: 70712-900 – Brazil • Tel.: (61) 3327-2030/2031 www.cvm.gov.br

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Circular Letter No. 4/2021-CVM/SEP

Rio de Janeiro, July 8, 2021.

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Subject: Continuation of Migration of the Quarterly Information Form (ITR) to the web platform of the Empresas.Net System.

Dear Investor Relations Director/Legal Representative,

1. This Circular Letter aims to inform open and foreign companies about the continuation of the migration process of structured forms from the Empresas.Net System to the web platform, which represents an evolution of the System and, at an estimated time yet to be determined, will result in the elimination of the use of the application (client).

2. As informed in Circular Letter No. 3/2021-CVM/SEP of May 11, 2021, the migration process will begin with the Quarterly Information (ITR) form, which was made available on May 18, 2021, so that companies could learn about it by accessing and handling the new form; delivery in the new structure was not permitted.

3. As the next step in the migration process, starting from July 26, 2021, it will be permitted, though not mandatory, to fill out and submit the ITR through the “ITR Online” functionality, available in the Empresas.Net System (address https://www.rad.cvm.gov.br/ENET), under the “Document Submission” menu, dispensing with the procedure of filling out and generating this form in the client.

4. The use of the new structure will become mandatory starting from October 1, 2021, when the ITR in the client will be deactivated.

5. Thus, in the period from July 26 to September 30, 2021, ITR submissions filled out both via the client and via ITR Online will be permitted.

6. Starting from October 1, 2021, any resubmissions of ITR forms, delivered from January 1, 2021, must be carried out exclusively via ITR Online.

7. For users of the Multiple Download functionality, we alert that:

   • in the period from July 26 to September 30, 2021, delivered or resubmitted ITR forms may present a different structure, as it will be possible to use ITR Online and the client to fill out and submit this document;
   • starting from October 1, 2021, all delivered or resubmitted ITR forms will have exclusively the structure resulting from the use of ITR Online.

8. The technical material of the structure resulting from the use of ITR Online is available on the CVM page at http://conteudo.cvm.gov.br/menu/regulados/companhias/download_multiplo/manual_tecnico.html.

9. Additionally, starting from July 26, 2021, the presentation on the use of ITR Online will be available in the Empresas.Net System, under “Access Tutorial Videos.”

10. We request that the information contained in this circular letter be brought to the attention of the teams responsible for submitting information via the Empresas.Net System.

Service:

11. We inform that questions regarding the installation, use, and operation of the Empresas.Net System, as well as reports of problems or difficulties in document submission, must be sent to the B3 Issuers Superintendence.

12. Contact with the Issuers Superintendence can be made by phone (11) 2565-5063 or by email: emissores.empresas@b3.com.br:
    a) Normal Service: on weekdays, from 8:00 AM to 8:00 PM, by email or phone. b) On-Call Service: on weekdays, after 8:00 PM, or on weekends and holidays, exclusively by email.

13. Issues received after 8:00 PM on weekdays and on weekends and holidays will be handled after 8:00 AM on the next weekday, except those related to system availability for receiving information, which will be handled immediately.

Sincerely,

FERNANDO SOARES VIEIRA
Superintendent of Corporate Relations

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Document electronically signed by Fernando Soares Vieira, Superintendent, on 07/08/2021, at 09:33, based on art. 6 of Decree No. 8.539, of October 8, 2015.

The authenticity of the document can be verified on the site https://sei.cvm.gov.br/conferir_autenticidade, providing the verification code 1299494 and the CRC code 600C0248. This document's authenticity can be verified by accessing https://sei.cvm.gov.br/conferir_autenticidade, and typing the "Verification Code" 1299494 and the "CRC Code" 600C0248.

Reference: Process No. 19957.005492/2021-91
SEI Document No. 1299494