Sigma Lithium Corporation announced new management appointments of Ana Cabral and Calvyn Gardner as Co-Chief Executive Officers ("co-CEOs") of the company. Sigma has elevated Ana Cabral Gardner from her current role as Chief Strategy Officer to her new role of co-CEO with Calvyn Gardner. In that capacity, Ana will oversee, at C-level, Sigma's entire breadth of ESG-centric activities, focusing on implementation for the environmental and corporate goals to achieve Net Zero Emissions by 2024. Ana will continue to work in close partnership with Sigma's Chief Sustainability Officer, Maria Salum, in environmental strategy, community relations and impact investing in the Vale do Jequitinhonha region, as part of the Company's comprehensive social responsibility program. Ana will also maintaining her current duties as Chief Strategy Officer, including overseeing the commercial, business development, corporate finance, regulatory and legal areas. Calvyn Gardner, co-CEO, has relocated full time to the Project site where he continues on his pivotal role leading the successful execution of the upcoming construction of Sigma's Grota do Cirilo project (the "Project") as well as ensuring its continued development, with the execution of the workstreams for a potential Production Phase 2 and Phase 3.