Yduqs Participações S A : Comunicado ao Mercado

YDUQS PARTICIPAÇÕES S.A.

Companhia Aberta

CNPJ MF 08.807.432/0001-10

NIRE 33.3.0028205-0

COMUNICADO AO MERCADO

A YDUQS Participações S.A. ("Companhia", "YDUQS") - (B3: YDUQ3; OTC: YDUQY), em cumprimento ao que estabelece o artigo 12, parágrafo 4º, da instrução CVM nº 358/2002, conforme alterada, comunica ter recebido, nesta data, de Wellington Management Group LLP ("Wellington Management"), gestora de fundos de investimentos com sede em Delaware, Estados Unidos da América, correspondência na qual foi informada à Companhia a realização pela Wellington Management, em 17 de setembro de 2021, de operações que resultaram em um aumento na sua posição agregada, totalizando 15,525,425 ações ordinárias, correspondentes a 5.02% do capital social total da Companhia. Wellington Management comunicou, por fim, que a intenção do incremento da participação acionária acima é estritamente investimento, não objetivando qualquer alteração de controle societário ou estrutura administrativa da Companhia, e que não foram celebrados quaisquer contratos ou acordos que regulem o exercício de direito de voto ou compra e venda de valores mobiliários emitidos pela Companhia.

A íntegra da correspondência recebida da Wellington Management encontra-se anexa a este Comunicado.

Rio de Janeiro, 20 de setembro de 2021

Eduardo Haiama

Diretor Financeiro e de Relações com Investidores

YDUQS PARTICIPAÇÕES S.A.

Publicly-held Company

CNPJ MF 08.807.432/0001-10

NIRE 33.3.0028205-0

NOTICE TO THE MARKET

YDUQS Participações S.A. ("Company", "YDUQS") - (B3: YDUQ3; OTC: YDUQY), pursuant to article 12 of CVM Instruction number 358/2002, as amended, announces that has received, on this day, from Wellington Management Group LLP (Wellington Management), a fund management entity based in Delaware, United States of America, - a correspondence informing that, on September 17, 2021, it has entered into transactions that resulted in an increase of its aggregate shareholding position consisting of 15,525,425 common shares, corresponding to 5.02% of the Company's total capital.

Wellington Management clarified that the objective of the shareholding interest is simply related to investment, without any aim of changing the power of shareholding control or the Company's administrative structure, and that no instruments that might regulate shareholders voting rights or other rights associated to the buying/selling of the Company's issued securities were signed.

The full correspondence received from Wellington Management is attached to this Notice.

Rio de Janeiro, September 20th, 2021

Eduardo Haiama

CFO and Investor Relations Officer

Boston, MA, September 20, 2021

YDUQS Participacoes

Att:

Investor Relations Officer

By Email:[e-mail]

Subject: TIME SENSITIVE - CVM Instruction 358 Notification - Disclosure of Crossing of 5% Shareholding in YDUQS Participacoes

Ladies and Gentlemen,

1. Wellington Management Group LLP ("Wellington Management") is a Delaware partnership that engages in investment management.
2. Please be advised that clients whose managed accounts are under our discretionary management have acquired a relevant shareholding in YDUQS Participacoes.
3. In compliance with our disclosure duty under article 12 of Securities and Exchange Commission of Brazil ("CVM") Instruction No. 358 dated January 3, 2002 (as amended, "CVM Instruction 358"), the complete information required thereunder is as follows:
4. 1. Wellington Management' Particulars: Wellington Management has head office at c/o Wellington Management Company LLP, 280 Congress Street, Boston, MA 02210 ;
   2. Objective: None of Wellington Management' clients intends to alter the control or administrative structure of YDUQS Participacoes.
   3. Holding: as at September 17, 2021, Wellington Management' clients hold 15,525,425 of YDUQS Participacoes common shares and such holding represents 5.02% of the common shares of YDUQS Participacoes in issue;
   4. Other certain YDUQS Participacoes Securities: Wellington Management is not aware whether its clients hold any positions in any other securities or derivative financial instruments referenced to YDUQS Participacoes shares. We understand, however, that even if they do, such convertible debentures would not be aggregated with any portion they own in the holdings hereby reported since these holdings were purchased under our discretionary management.
   5. Voting Rights Agreements: Other than a managed account

agreement entered into between us and each client for purposes of asset management pursuant to which, generally, we may exercise voting rights in respect of such client's investment portfolio, there is no agreement or contract between us, on the one hand, and part or all of the clients who own the aggregate holdings reported hereby, on the other, regulating any acting in concert or similar arrangement with respect to the voting rights or the purchase and sale of securities issued by YDUQS Participacoes.

4. You are receiving concurrently herewith an executed Portuguese version of this letter. Both this English version and the Portuguese version shall have the same legal effect. You may rely on the Portuguese version for the purposes of CVM Instruction 358.

We look forward to receiving confirmation that you have made the relevant reporting to the CVM.

For purposes of Article 119 of Law 6,404, of December 15, 1976, as amended, the representative(s) in Brazil of the Accounts are listed below:

ARKANSAS TEACHER RETIREMENT SYSTEM

RBC Investor Services Trust

BANK OF NEW YORK MELLON

SPUME CO

Wellington Trust Company N.A.

EMPLOYEES' RETIREMENT SYSTEM OF THE ST OF HI

Lockheed Martin Corporation Master Retirement Trust

MISSOURI LOCAL GOVT EMPL RETIREMENT SYSTEM

NEBRASKA PUBLIC EMPLOYEES RETIREMENT SYSTEMS

TELUS PENSIONS MASTER TRUST

WELLINGTON GLOBAL PERSPECTIVES FUND (CANADA)

SPUME + CO

WELLINGTON MANAGEMENT FUNDS (IRELAND) PLC

THE WELLINGTON TRUST COMPANY NATIONAL ASSOCIATION MULTIPLE COLLECTIVE INVESTMENT FUNDS TRUST

WELLINGTON TRUST COMPANY, NATIONAL ASSOCIATION MULTIPLE COMMON TRUST FUNDS TRUST EMERGING MARKETS LOCAL EQUITY PORTFOLIO

THE WELLINGTON TRUST COMPANY, NATIONAL ASSOCIATION MULTIPLE COMMON TRUST FUNDS TRUST GLOBAL PERSPECTIVES PORTFOLIO

Should any further clarification or information be required on this notification, please contact Taisia Lowe, Regulatory Analyst, at phone number 617-790-8054 or e-mail [e-mail].

Thank you for your attention to this matter.

Very truly yours,

Wellington Management Group LLP

____	_________________________
Name: Taisia Lowe
Title: Regulatory Analyst