Gerdau S A : Comunicado ao Mercado

GERDAU S.A.

CNPJ/MF nº 33.611.500/0001-19

NIRE: 35300520696

COMUNICADO AO MERCADO

A GERDAU S.A. (B3: GGBR / NYSE: GGB) ("Companhia"), em atendimento ao disposto no parágrafo 6º do artigo 12 da Resolução CVM No 44/2021, comunica que recebeu em 28 de julho de 2022 a informação anexa a este comunicado, sobre DIMINUIÇÃO DE PARTICIPAÇÃO ACIONÁRIA, da GIC Private Limited.

São Paulo, 29 de julho de 2022.

Rafael Dorneles Japur

Vice-Presidente Executivo

Diretor de Relações com Investidores

This content is Public.

GERDAU S.A.

Tax ID (CNPJ/ME) 33.611.500/0001-19

Registry (NIRE): 35300520696

NOTICE TO THE MARKET

GERDAU S.A. (B3: GGBR / NYSE: GGB) ("Company"), pursuant to paragraph 6 of article 12 of CVM Resolution 44/2021, informs that it received, on July 28, 2022, the information attached to this notice, with regard to DECREASE IN EQUITY INTEREST, from GIC Private Limited.

São Paulo, July 29, 2022.

Rafael Dorneles Japur

Executive Vice-President

Investor Relations Officer

This content is Public.

29 July 2022

Attn:

Rafael Dorneles Japur Investor Relations Director GERDAU S.A.

8501 Nações Unidas Avenue - 8th floor Pinheiros, São Paulo/SP

CEP 05.425-070

Dear Sir,

OFFICIAL STATEMENT - POSITION IN GERDAU S.A. SHARES

Pursuant to Article 12 of CVM Instruction no. 358, we, GIC Private Limited ("GIC") are required to notify Gerdau S.A. (the "Issuer") that our aggregate holdings in Gerdau S.A. Preferred Shares (ISIN: BRGGBRACNPR8) and its ADR (ISIN: US3737371050) have dropped below the 5% disclosure limit as of 28 July 2022. The table below indicates the details of our holdings:

Passenger	Qualification	Tax ID	Holdings	% Holdings*
Acc Name
Government	Legal entity	08.765.815/0001-73	49,318,744 #	4.303%
of	incorporated
Singapore	outside Brazil
Monetary	Legal entity	05.840.118/0001-41	7,727,708	0.674%
Authority of	incorporated
Singapore	outside Brazil
		Total Holdings	57,046,452	4.978%

Legal Representative

Full name: Citibank Distribuidora de Titulos e Valores Mobiliarios S.A.

Tax ID: 33.868.597/0001-40

* Based on 1,146,031,245 preferred shares as of 12 April 2011 from Bovespa website

• Amount does not include 2,600 Preferred shares (represented by ADR) which have been lent out

GIC Private Limited

168 Robinson Road #37-01 Capital Tower Singapore 068912 Tel: [phone]

Company Registration No.: 198102265N

Other than the shareholding detailed above, we do not hold, directly or indirectly, any other shares, rights over shares, other securities, or financial derivative instruments referenced to shares on Gerdau S.A. as of today.

Please be informed that our interest in Gerdau S.A. extends only as far as maintaining a diversified trading portfolio. As such, we have no interest in altering the composition of the control or administrative structures of Gerdau S.A.

Furthermore, at the date hereof, we are not a party to any agreement or contract regulating the right to vote regarding the securities issued by Gerdau S.A.

Finally, we would be grateful if you would forward this statement to the Comissão de Valores Mobiliários, Bovespa.

Please do not hesitate to contact Ms Diane Liang at 65-68898975 or [e-mail] should you require any further information or clarification.

Thank you for your kind attention.

Yours faithfully,

Diane Liang	Toh Tze Meng
Senior Vice President	Senior Vice President
29-Jul-2022	29-Jul-2022
Investment Services - Public Markets	Investment Services - Public Markets

GIC Private Limited

168 Robinson Road #37-01 Capital Tower Singapore 068912 Tel: [phone]

Company Registration No.: 198102265N