SIGMA LITHIUM RECEIVES FROM GLENCORE A 50% PREPAYMENT AT PREMIUM PRICES FOR ITS THIRD SHIPMENT OF 20,000 TONNES PR Newswire SÃO PAULO, Oct. 31, 2023 SÃO PAULO , Oct. 31, 2023 /PRNewswire/ -- Sigma Lithium Corporation (" Sigma Lithium " or the " Company ") (NASDAQ: SGML, BVMF: S2GM34, TSXV: SGML), a leading global lithium producer dedicated to powering the next generation of electric vehicles with carbon neutral, socially and environmentally sustainable chemical-grade lithium concentrate,...