 Sigma Lithium Corporation has released a corporate update following a quarter in which the company significantly increased the scale of its Grota do Cirilo project in Brazil. In three months ended June 30, the company doubled its planned near-term production to 531,000 tonnes per year of battery grade sustainable lithium and increased the total mineral resource estimate by roughly 50 to 86 million tonnes with an average resource grade of 1.43 high purity spodumene lithium oxide. 