EXHIBIT 99.6
CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350,
AS ENACTED PURSUANT TO
SECTION 906 OF THE U.S. SARBANES-OXLEY ACT OF 2002
Sigma Lithium Corporation. (the “Company”) is filing with the U.S. Securities and Exchange Commission on the date hereof, its annual report on Form 40-F for the fiscal year ended December 31, 2022 (the “Report”).
I, Ana Cabral-Gardner, Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. section 1350, as enacted pursuant to section 906 of the U.S. Sarbanes-Oxley Act of 2002, that:
| (i) | the Report fully complies with the requirements of section 13(a) or 15(d) of the U.S. Securities Exchange Act of 1934; and |
| (ii) | the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company. |
/s/ Ana Cabral-Gardner | | |
Name: | Ana Cabral-Gardner | |
Title: | Chief Executive Officer | |
Date: June 12, 2023