SIGMA LITHIUM TO RELEASE FIRST QUARTER 2024 RESULTS MAY 16, 2024, BEFORE MARKET OPENSIGMA LITHIUM TO RELEASE FIRST QUARTER 2024 RESULTS MAY 16, 2024, BEFORE MARKET OPEN SIGMA LITHIUM TO RELEASE FIRST QUARTER 2024 RESULTS MAY 16, 2024, BEFORE MARKET OPEN PR Newswire SO PAULO, May 15...