Sigma Lithium — Regulatory Filings 2021

Jul 16, 2021

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CONSENT OF QUALIFIED PERSON JACQUES PARENT

Primero Group Americas Inc

1450 - 1801 McGill College, Montréal, Québec, H3A 2N4

I, Jacques Parent, P. Eng, consent to the public filing of the technical report titled “ Grota do Cirilo Lithium Project Araçuaí and Itinga Regions, Minas Gerais, Brazil Phase 2 (Barreiro) Update of the NI 43-101 Technical Report on Feasibility Study ”, with an effective date of June 2, 2021 (the “ Technical Report ”) by Sigma Lithium Corporation (the “ Issuer ”).

Signed and dated this July 15, 2021, at Quebec City, Quebec.

“Signed and sealed” Jacques Parent, P.Eng

Jacques Parent, P.Eng. Consultant Primero Group Americas Inc