Sigma Lithium — Regulatory Filings 2021

Nov 4, 2021

QUALIFICATION CERTIFICATE

TO: British Columbia Securities Commission, Principal Regulator

AND TO: The Securities Regulatory Authorities in each of the other Provinces and Territories of Canada, other than Québec

RE: Sigma Lithium Corporation

The undersigned, Calvyn Gardner, Chief Executive Officer of Sigma Lithium Corporation (the “ Corporation ”) hereby certifies on behalf of the Corporation in connection with the filing of the preliminary short form base shelf prospectus of the Corporation dated November 4, 2021 (the “ Prospectus ”) pursuant to National Instrument 44-102 - Shelf Distributions and Section 2.2 of National Instrument 44-101 - Short Form Prospectus Distributions (“ NI 44-101 ”), that:

• (a) the Corporation is an electronic filer under National Instrument 13-101 - System for Electronic Document Analysis and Retrieval (SEDAR) ;

• (b) the Corporation is a reporting issuer in at least one jurisdiction of Canada;

• (c) the Corporation has filed with the securities regulatory authority in each jurisdiction in which it is a reporting issuer all periodic and timely disclosure documents that it is required to have filed in that jurisdiction

  • (i) under applicable securities legislation,

  • (ii) pursuant to an order issued by the securities regulatory authority, or

  • (iii) pursuant to an undertaking to the securities regulatory authority;

• (d) the Corporation has, in at least one jurisdiction in which it is a reporting issuer,

  • (i) current annual financial statements, and

  • (ii) a current AIF (as that term is more specifically defined under NI 44-101);

• (e) the Corporation’s equity securities are listed and posted for trading on a short form eligible exchange and the Corporation is not an issuer

  • (i) whose operations have ceased, or

  • (ii) whose principal asset is cash, cash equivalents, or its exchange listing;

and also certifies that all of the material incorporated by reference in the Prospectus and not previously filed is being filed with the Prospectus.

DATED this 4[th] day of November, 2021.

SIGMA LITHIUM CORPORATION

Per: “Calvyn Gardner” Calvyn Gardner Chief Executive Officer