6-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR
15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of September, 2023

Commission File Number: 001-40786

Sigma Lithium Corporation
(Translation of registrant’s name into English)

2200 HSBC Building
885 West Georgia Street
Vancouver, British Columbia
V6C 3E8

(Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F ¨ Form 40-F x

EXHIBIT INDEX

Exhibit	Description
99.1	Notice of Change of Auditor dated July 21, 2023.
99.2	Letter from Successor Auditor dated August 10, 2023.
99.3	Letter from Predecessor Auditor dated August 1, 2023.

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

	Sigma Lithium Corporation
	(Registrant)
Date: September 1, 2023
	/s/ Ana Cristina Cabral
	Ana Cristina Cabral Chief Executive Officer

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EX-99.1

Exhibit 99.1

SIGMA LITHIUM CORPORATION

NOTICE OF CHANGE OF AUDITOR

TO:	KPMG LLP
AND TO:	KPMG Auditores Independentes Ltda.
AND TO:	Ontario Securities Commission (Principal Regulator) British Columbia Securities Commission
	Alberta Securities Commission
	Saskatchewan Financial and Consumer Affairs Authority The Manitoba Securities Commission
	Financial and Consumer Services Commission, New Brunswick Nova Scotia Securities Commission
	Office of the Superintendent of Securities, Prince Edward Island
	Office of the Superintendent of Securities, Government of Newfoundland and Labrador Office of the Superintendent of Securities, Government of the Northwest Territories Office of the Superintendent of Securities, Government of Nunavut
	Office of the Superintendent of Securities, Government of Yukon

Sigma Lithium Corporation (the “Company”) hereby provides notice pursuant to section 4.11 of National Instrument 51-102 – Continuous Disclosure Obligations (“NI 51-102”) of the change of its auditor from KPMG LLP (the “Former Auditors”) to KPMG Auditores Independentes Ltda. (the “Successor Auditors”). In accordance with NI 51-102, the Company hereby states that:

(i) the Former Auditors were not proposed for re-appointment at the annual and special meeting of shareholders of the Company held on June 30, 2023 and were therefore terminated for the purposes of NI 51-102;

(ii) The termination of the Former Auditors and the appointment of the Successor Auditors has been considered and was approved by the Company’s audit committee and board of directors;

(iii) During the term of the Former Auditors’ appointment as Auditors for the Company, the Former Auditors did not deliver an audit report to the Company’s board of directors which contained a modified opinion; and

(iv) There have been no “reportable events” as that term is defined in NI 51-102.

Dated July 21, 2023.

(Signed) “Rodrigo Menck”

Rodrigo Menck

Chief Financial Officer
Sigma Lithium Corporation

EX-99.2

Exhibit 99.2

 

KPMG Auditores Independentes Ltda.

Rua Verbo Divino, 1400, Conjunto Térreo ao 801 - Parte,
Chácara Santo Antônio, CEP 04719-911, São Paulo - SP
Caixa Postal 79518 - CEP 04707-970 - São Paulo - SP - Brasil
Telefone +55 (11) 3940-1500

kpmg.com.br

To

Ontario Securities Commission

British Columbia Securities Commission
Alberta Securities Commission

Financial and Consumer Affairs Authority of Saskatchewan
The Manitoba Securities Commission

Financial and Consumer Services Commission, New Brunswick
Nova Scotia Securities Commission

Financial and Consumer Services Division, Prince Edward Island

Office of the Superintendent of Securities, Service Newfoundland and Labrador
Office of the Superintendent of Securities, Northwest Territories

Office of the Superintendent of Securities Nunavut
Office of the Yukon Superintendent of Securities

August 10, 2023

Dear Sir/Madam Re: Notice of Change of Auditors of Sigma Lithium Corporation

We have read the Notice of Sigma Lithium Corporation dated July 21, 2023, and are in agreement with the statements contained in such Notice.

Yours very truly,

 

KPMG Auditores Independentes Ltda.

KPMG Auditores Independentes Ltda., uma sociedade simples brasileira, de responsabilidade limitada e firma-membro da organização global KPMG de firmas-membro independentes licenciadas da KPMG International Limited, uma empresa inglesa privada de responsabilidade limitada. KPMG Auditores Independentes Ltda., a Brazilian limited liability company and a member firm of the KPMG global organization of independent member firms affiliated with KPMG International Limited, a private English company limited by guarantee.

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EX-99.3

Exhibit 99.3

KPMG LLP

Bay Adelaide Centre
Suite 4600

333 Bay Street
Toronto ON M5H 2S5
Tel 416-777-8500

Fax 416-777-8818

www.kpmg.ca

Ontario Securities Commission

British Columbia Securities Commission
Alberta Securities Commission

Financial and Consumer Affairs Authority of Saskatchewan
The Manitoba Securities Commission

Financial and Consumer Services Commission, New Brunswick
Nova Scotia Securities Commission

Financial and Consumer Services Division, Prince Edward Island

Office of the Superintendent of Securities, Service Newfoundland and Labrador
Office of the Superintendent of Securities, Northwest Territories

Office of the Superintendent of Securities Nunavut
Office of the Yukon Superintendent of Securities

August 1, 2023

Dear Sir/Madam

Re: Notice of Change of Auditors of Sigma Lithium Corporation

We have read the Notice of Sigma Lithium Corporation dated July 21, 2023 and are in agreement with the statements contained in such Notice.

Yours very truly,

 

Chartered Professional Accountants, Licensed Public Accountants

KPMG LLP, an Ontario limited liability partnership and member firm of the KPMG global organization of independent member firms affiliated with KPMG International Limited, a private English company limited by guarantee. KPMG Canada provide s services to KPMG LLP.