Year Press Release: 2021

Sigma Lithium Announces Closing of Private Placement for Gross Proceeds of C$136.7 million

Sigma Lithium Announces an Investment by Funds and Accounts Managed by BlackRock of C$ 64.2 million, Further Upsizing by 60% its Previously Announced Private Placement to C$136.7 million

Sigma Lithium Upsizes Previously Announced Private Placement by 42% to C$85 Million

Sigma Lithium Announces a C$60 Million Private Placement of Common Shares at C$11.75

Sigma Lithium Starts Construction of Production Plant Foundation and Infrastructure and Orders Long Lead Items, on Schedule for Production in 2022

Sigma Lithium Announces Filing of Canadian Base Shelf Prospectus and U.S. Shelf Registration Statement

Sigma Lithium is Highlighted at COP-26 In Glasgow for its Clean Technology, Pioneering Practices in Environmental Sustainability and Positive Social Impact for a Second Consecutive Year, and Released Third Quarter 2021 Results

Sigma Lithium Announces the Construction Mobilization on Site, Presentation at COP26 and Filing of Preliminary Base Shelf Prospectus

Sigma Lithium’s Ana Cabral Gardner to Mining & Energy Commission at Brazilian Congress: “Brazil Has Strategic Opportunity To Become a Green Lithium-Exporting Powerhouse”

Sigma Lithium Says Technology Will Be Key to Make Lithium Greener and Cheaper at Financial Times Live Commodities Summit

Sigma Lithium and LG Energy Solution Sign Milestone Six-Year Binding Term Sheet for Lithium Offtake Agreement

Sigma Lithium Participates in United Nations High-Level Dialogue on Energy