Sigma Lithium Corp. (NASDAQ:SGML), the global lithium producer dedicated to powering the next generation of electric vehicles, reported Q2 earnings, with an increase in the volume of lithium sold and cost cuts ahead of schedule. During the second quarter, Sigma Lithium sold 52,572 tons of its Quintuple Zero Green Lithium or 5.0 Green Lithium, with the company making two full shipments, with an additional sale FOB to Brazil Port totaling 17,270 tons at the end of the second quarter. The company continued a strategy initiated in the first quarter when it delivered 8,700 tonnes in a similar FOB B…