SIGMA LITHIUM AWARDED THE ENVIRONMENTAL OPERATING LICENSE WITH UNANIMOUS APPROVAL AND SCALES UP SOCIAL INITIATIVES; FIRST PRODUCTION ON SCHEDULE TO COMMENCE IN APRIL 2023 1 VANCOUVER, CANADA – (April 10, 2023) – SIGMA Lithium Corporation ("Sigma Lithium" or the "Company") (NASDAQ: SGML, TSXV: SGML), dedicated to powering the next generation of electric vehicles with Battery Grade Sustainable Lithium Concentrate ("Green Lithium"), is pleased to announce significant project updates and renewed commitments to ...